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14 March 2024
13:00
Fernando Quadro: Raster no PostGIS, vale a pena?
sur Planet OSGeo

Você sabe quais os benefícios e as armadilhas de colocar arquivos rasters em um banco de dados relacional?

A maioria das pessoas pensa que “colocar em um banco de dados” é uma receita mágica para: desempenho mais rápido, escalabilidade infinita e gerenciamento fácil.

Se você pensar que o banco de dados está substituindo uma pilha de arquivos CSV, isso provavelmente é verdade.

Porém quando o banco de dados está substituindo uma coleção de arquivos de imagens GeoTIFF, isso provavelmente é falso. O raster no banco de dados será mais lento, ocupará mais espaço e será muito chato de gerenciar.

Então, por que fazer isso? Comece com um padrão, “não!”, e então avalie a partir daí.

Para alguns dados raster não visuais e casos de uso que envolvem o enriquecimento de vetores de fontes raster, ter o raster colocalizado com os vetores no banco de dados pode tornar o trabalho com ele mais conveniente. Porém, ainda será mais lento que o acesso direto e ainda será difícil de gerenciar, mas permite o uso de SQL como uma linguagem de consulta, o que pode oferecer muito mais flexibilidade para explorar o espaço da solução do que um script de acesso a dados criado especificamente para esse fim.

Fonte: webgis.tech
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11:32
Flip Off the World with Street View
sur Google Maps Mania

AI and Street View seems like the perfect match. Last month panoramai released a fun tool which allowed users to change the appearance of Google Maps Street View images based on their own AI prompts. The app became so popular it had to be turned off because of the costs being incurred by the developers (you can still browse the example images created with the app).Now a new Ai and Street View

11:00
Mappery: One World
sur Planet OSGeo

Mark Iliffe spotted this neat t-shirt in a New York shop. You may need to enlarge the picture to appreciate it.

I want (L please).
MapsintheWild One World
13 March 2024
13:00
Fernando Quadro: Geoprocessamento na Gestão Rodoviária
sur Planet OSGeo

Quando falamos de Gestão Rodoviária, muito se discute em como aumentar a segurança e na diminuição de acidentes nas rodovias em geral.

Você sabia que podemos aplicar Geoprocessamento na Gestão Rodoviária para apoio na previsão das condições das rodovias?

O projeto Vision Zero, por exemplo, é uma iniciativa que tem o objetivo de reduzir a zero as mortes no trânsito, e o SIG e a análise espacial são ferramentas utilizadas para atingir esse objetivo.

Mas onde o Geoprocessamento entra na prática, e onde ele pode realmente contribuir? Veja:

Prevenção de riscos e acidentes;
Melhorias de acesso;
Mapeamento de estradas inundáveis;
Geotecnologias de detecção remota;
Dados GPS;
Aprendizado de máquina para prever locais de acidentes.

Fonte: webgis.tech
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Você já tinha pensado nessas possibilidades do Geoprocessamento? Conte nos comentários
11:00
Mappery: Geo-embellished Vending Machine
sur Planet OSGeo

Maarten Pullen sent us this pic of a vending machine that he spotted in Amsterdam.

If you are puzzled by this one, Maarten explained “The shot was taken in Amsterdam, at the Amsterdam School of Real Estate. They probably want to show some of their local identity to all the business people visiting there.”
MapsintheWild Geo-embellished Vending Machine

9:56
Climate Resilient Crops
sur Google Maps Mania

The Vision for Adapted Crops and Soils (VACS) has released an interactive map which visualizes how different crops will be affected by climate change in Africa. The visualization focuses on climate-resilient crop varieties in order to help identify the most promising crops for the changing climate.The VACS Explorer maps out where in Africa climate-resilient crops will likely have bigger and

9:12
Stefano Costa: Africa. Le collezioni dimenticate
sur Planet OSGeo

È finita a Torino la mostra “Africa. Le collezioni dimenticate” allestita nelle sale di Palazzo Chiablese. Sono riuscito a visitare la mostra pochi giorni fa. Mi è piaciuta molto.

La mostra è stata organizzata dai Musei Reali di Torino, dalla Direzione Regionale Musei Piemonte e dal Museo di Antropologia ed Etnografia dell’Università di Torino, ed è una intensa passeggiata nel voyeurismo e collezionismo italiano durante il lungo periodo della scoperta, conquista e razzia dell’Africa, fino agli orrori della guerra in Etiopia. Il percorso si snoda sui passi di molti personaggi, tutti uomini italiani: esploratori, ingegneri al servizio dell’espansione belga nel Congo, affaristi, membri della casa reale. Tutti accomunati dall’attività coloniale nelle sue diverse fasi storiche, e tutti prontamente rimossi dalla memoria collettiva al termine della seconda guerra mondiale. Altrettanto dimenticate le collezioni di oggetti africani che questi personaggi hanno fatto confluire a vario titolo nei musei italiani e in questo caso piemontesi.

Ad accompagnare la visita le installazioni di Bekele Mekonnen, in particolare il “site specific” dal titolo “The smoking table” ma anche le clip sonore lungo il percorso.

La mostra ha agitato tantissimo i fascisti dichiarati e quelli non dichiarati perché non usa giri di parole, perché chiama il colonialismo e il razzismo con il loro nome, perché mette le voci africane sullo stesso piano di quelle italiane. Il ricco programma pubblico ha coinvolto molte persone, anche originarie dell’Africa.
Parte dell’installazione “The smoking table” con scritte di colori diversi. In rosso sotto un braccio muscoloso: conspiracy, betrayal, greed, injustice, deception. In azzurro sotto due mani strette: honesty, fraternity, generosity, impartiality”
Le polemiche, tutte politiche e ben poco culturali, suonano come un brusio fastidioso se consideriamo il lavoro lunghissimo di preparazione della mostra, la quantità di musei con collezioni africane in tutto il Piemonte, la ricchezza del catalogo che affronta in dettaglio molte delle questioni sollevate ad arte, ad esempio il salario pagato ai lavoratori della Società Agricola Italo-Somala, veri “forzati della terra” anche nelle parole degli italiani dell’epoca.

Il paradosso sta nel fatto che questa mostra è molto blanda, se la inquadriamo nella cornice europea e occidentale bianca dei musei di antropologia e archeologia: dalla complessa operazione di continuo adattamento del Musée du Quai Branly di Parigi, al documentario Dahomey di Mati Diop che ha vinto l’Orso d’oro del Festival di Berlino pochi giorni fa, per finire al lavoro avviato nel 2016 da quello che oggi si chiama Museo delle Civiltà. È molto eloquente l’intervento del direttore Andrea Villani a un convegno di poche settimane fa, che potete rivedere su YouTube. Ho apprezzato questo passaggio:

Quello che allora aveva un senso oggi può non solo non avere un senso, ma può anche essere tossico. [..] La storia non si cambia. I musei non cambiano la storia, ma possono raccontarla per intero, accettando di mettere in crisi quello che è venuto prima

E poiché in Italia non siamo solo colonizzatori ma anche colonizzati e depredati, è bene sapere che alcuni musei degli USA sono seriamente alle prese con la provenienza delle proprie collezioni.
12 March 2024
15:59
Fernando Quadro: Última chance para se inscrever no Curso de GeoNode: garanta a sua vaga!
sur Planet OSGeo

NÃO FIQUE DE FORA!

Curso de GeoNode: Última Semana de inscrições!

Aprenda a montar a sua própria Infraestrutura de Dados Espaciais com o GeoNode, uma plataforma para gestão e publicação de dados geoespaciais que reúne projetos open-source maduros e estáveis sob uma interface consistente e fácil de usar, permitindo que os usuários, compartilhem seus dados de forma rápida e facil.

Este novo curso visa capacitar os profissionais no uso eficiente da plataforma GeoNode, e tem como objetivos:

Familiarizar os participantes com os conceitos fundamentais do Geonode e suas capacidades.
Explorar o funcionamento de servidores de mapas e seus benefícios.
Apresentar os padrões de dados do Open Geospatial Consortium (OGC), como Web Map Service (WMS) e Web Feature Service (WFS), para interoperabilidade geoespacial.
Demonstrar a publicação eficiente de dados no Geonode usando views de bancos de dados geográficos.
Ensinar a integração do Geonode com o QGIS através de plugins.

Quer saber mais?

O Curso é oferecido na modalidade EAD Ao Vivo, com uma carga horária de 18 horas divididos em 6 encontros. Porém, essas aulas são gravadas e ficam disponíveis ao aluno por 12 meses em nosso portal do aluno.

Então, se por acaso você não puder comparecer em alguma das aulas ao vivo, não se preocupe, você poderá rever a aula gravada a qualquer momento.

Ficou interessado?

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11:32
Markus Neteler: GRASS GIS 8.3.2 released
sur Planet OSGeo

The GRASS GIS 8.3.2 maintenance release contains more than 30 changes compared to 8.3.1. This new patch release includes important fixes and improvements to the GRASS GIS modules and the graphical user interface (GUI), making it even more stable for daily work.

The post GRASS GIS 8.3.2 released appeared first on Markus Neteler Consulting.
11:00
Mappery: Occular Cartographic Study
sur Planet OSGeo

Eric Lund said “Came across this eye-catching map at my eye doctor’s office this week and had to share it with you.” Well I am glad he did share it, what a cracking map in the wild! Here’s a bit more detail.

This piece was designed by Tad Bradley, the accompanying description says

‘Snellen’ and “Tumbling E’ eye charts: Ocular Cartographic Study

Although trained and currently practicing architecture at SMA Architecture + Design, Tad Bradley remains an artist and educator. He is continually fascinated with nature and the human body. The complexities within and between these are continually inspirational to investigate through art.
The scale of the eye charts is inspired by the art movement of hyperrealism. In reproducing the eye charts at such a large scale, they begin to hold a greater weight within space, possibly reminding us the value of our eyesight and the incredible value this sense and these organs bring to our lives.
The maps and text you see were originally printed in 1906. The series of oversized manuscripts, which focused on separate geographic regions, were titled ‘Geologic Atlas of the United States’, edited by S.J. Kubel. The maps here, in the waiting area, have been scanned and reprinted on metal panels in order to protect them from UV degradation from solar exposure.
Eye charts have been the tool opticians have used for many years to assist in initially analyzing visual acuity. Exploring a tool within art invites a different awareness of not only the object but the process of how it is used. These eye charts were created for specific groups of people. The Tumbling E chart is used for those unable to read or never learned the Latin alphabet. The shapes and their direction are universal to all. The Snellen eye chart contains eleven rows of diminishing Latin letters to assess vision.
Each 11? x 11? plywood panel has two layers of hand-cut paper [1906] to create visual contrast for viewers.
“I chose the text pages from the Atlas to expose the Tumbling E chart. I was interested in exploring the contrast of the text-heavy pages and their visual relationship to the simplified ‘E’ shapes. The maps, on the other hand, are filled with high-contrast colors and patterns, more easily revealing the letters of the Snellen eye chart.
One of my goals in creating this work was to analyze how we as humans experience the world, interact with one another, and stand alone as individuals. I hope that my work creates curiosity, questions and conversation”.
MapsintheWild Occular Cartographic Study

10:41
Real-time Air Pollution Alerts
sur Google Maps Mania

In February the Copernicus Atmosphere Monitoring Service (CAMS) launched an Aerosol Alerts service to provide warnings about upcoming air pollution. You can view an animated map of today's alerts on the Aerosol Alerts interactive map.Aerosols are tiny particles that are suspended in the air, which can come from both natural and human-made sources. Natural sources of aerosols include dust

11 March 2024
13:00
Fernando Quadro: Por que usar o PostGIS?
sur Planet OSGeo

Talvez você já tenha escutado algumas vezes a frase: “PostGIS é uma extensão espacial do PostgreSQL”.

Isso não significava que você tivesse ou tenha alguma ideia do que isso significa, e que você sabia o que é o PostgreSQL, quiçá o PostGIS.

Mas não se preocupe, você não sairá desse post sem saber o que é cada um deles.

PostGIS é um extensor de banco de dados espacial de código aberto e disponível gratuitamente para o PostgreSQL Database Management System (também conhecido como DBMS). Portanto, PostgreSQL (também conhecido como Postgres) é o banco de dados e PostGIS é como um complemento desse banco de dados.

Resumidamente, o PostGIS adiciona funções espaciais, como distância, área, união, interseção e tipos de dados de geometria ao PostgreSQL. Os bancos de dados espaciais armazenam e manipulam objetos espaciais como qualquer outro objeto no banco de dados.

E qual a vantagem de utilizá-lo?

Na prática temos algumas vantagens em utilizá-los, mas a principal é a possibilidade de trabalhar com grandes conjuntos de dados. Não é apenas mais fácil, mas às vezes é quase impossível trabalhar em conjuntos de dados maiores sem um banco de dados.

Você já tentou abrir um arquivo CSV de 2 GB?
Ou tentou fazer algum geoprocessamento para um GeoJSON de 800 mb?
Você sabia que os Shapefiles têm um limite de tamanho?

É claro que você pode resolver alguns desses problemas usando o Geopackage ou alguns outros formatos de arquivo, mas em geral o PostGIS é a ferramenta ideal para lidar com grandes volumes de dados (geoespaciais).

Fonte: webgis.tech
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E você, já conhecia o PostGIS? Conta nos comentários

11:23
Virtual Rewind Machines
sur Google Maps Mania

urban development of the Summerline West neighborhood in Las Vegas since 2014Esri's World Imagery Wayback is a virtual rewind machine which allows you to create animated GIFs of locations showing how they have changed over time. The World Imagery Wayback interactive map provides access to satellite imagery captured over a period of years, currently stretching back to February 20, 2014.

11:00
Mappery: Indigenous Australia
sur Planet OSGeo

Tony Rabin spotted this map of the indigenous peoples of Australia near the Qantas bording gate at LAX
MapsintheWild Indigenous Australia
10 March 2024
19:08
Stefano Costa: In…segnami il silenzio
sur Planet OSGeo

Ieri sera siamo andati al Teatro Gustavo Modena, qui vicino a casa, per uno spettacolo della stagione dedicata all’infanzia. Eravamo con altre famiglie, ci siamo persino fatti un aperitivo casalingo prima di andare, visto che iniziava alle sette e mezza.

Lo spettacolo si intitola “In…segnami il silenzio” e ha come protagonisti Marcello e Maria. Marcello ci racconta dell’arrivo di Maria nella sua classe, lei non parla e non sente, perché ha le “orecchie rotte”. Maria però sa ascoltare con gli occhi e sa parlare con la danza delle mani, con il viso, con tutto il corpo. Il rapporto tra Marcello e Maria è molto profondo, lui si lascia trasportare e insegnare. In cambio le fa vedere la musica che lei non può sentire, in particolare sulle note di una travolgente “Ça plane pour moi”.

Lo spettacolo è rivolto ai bambini anche se non è facilissimo, ma tratta in modo fiabesco, senza filtri e un po’ scanzonato il tema della disabilità, che non è solo la sordità di Maria ma anche la “distrazione” di Marcello che la maestra gli rimprovera.

Ci è piaciuto molto.

Alla fine un appello della regista Elena Dragonetti per il cessate il fuoco a Gaza è stato accolto da un lungo applauso.

Locandina dello spettacolo sul sito del Teatro nazionale di Genova

Plastic Bertrand – Ça plane pour moi
12:48
Mappery: Mappery Featured in The New York Times
sur Planet OSGeo

A few weeks ago I did an interview with Eve Kahn for a piece she was writing for The NewYork Times about what she calls “Cartifacts” which are a subset of Maps in the Wild. Mappery gets a very nice write up of course and I recommend the whole piece to my map loving friends.
MapsintheWild Mappery Featured in The New York Times
11:00
Mappery: Archer Field
sur Planet OSGeo

Marianne Pietersen sent us these pics from her visit to Archer Field.

“Last year I went to a lecture at Archer Field, Brisbane, about the history of the Dutch military camp there,
during WW2. In a side room of the airport building was a small amount of photos from those days, including the attached 3 maps of the Field. The exhibition is permanent (for now at least.) ?”

Today the spelling has been concatenated to Archerfield but the title pane of the map makes clear that in the past it was Archer Field.

More info on the history of Archer Field airport
MapsintheWild Archer Field
09 March 2024
11:00
Mappery: Switzerland in 3D Magnificence
sur Planet OSGeo

This stunning relief map was sent to us by Scott Simmons who spotted it at the Swiss National Museum in Zurich.
MapsintheWild Switzerland in 3D Magnificence

10:00
Not Everyone Commutes by Car
sur Google Maps Mania

In Canada and the United States 95% of journeys to and from work are made by car. Elsewhere in the world people often walk, cycle or use public transport in order to get to work.Cities Moving is a research project by the Complexity Science Hub of the University of Vienna, which analysed the mode of transport most commonly used for commuting to work in 794 cities in 61 countries around the

08 March 2024
13:00
Fernando Quadro: Você conhece o MobilityDB?
sur Planet OSGeo

Dispositivos de rastreamento de localização, como GPS, são hoje amplamente utilizados em smartphones e veículos. Como resultado, os dados de trajetória geoespacial estão atualmente sendo coletados e usados ??em muitos domínios de aplicação. O MobilityDB fornece o suporte de banco de dados necessário para armazenar e consultar esses dados de trajetória geoespacial.

MobilityDB é implementado como uma extensão do PostgreSQL e PostGIS. Ele implementa tipos de banco de dados persistentes e operações de consultas para gerenciar trajetórias geoespaciais e suas propriedades que variam no tempo.

Uma trajetória geoespacial é geralmente coletada como uma sequência de pontos de localização e informações de data e hora. Na realidade, porém, o movimento é contínuo. Portanto, o MobilityDB interpola a trilha de movimento entre as informações de entrada. Como tal, a localização e as propriedades do objeto em movimento podem ser consultadas, efetivamente aproximadas, a qualquer momento.

Embora esta interpolação restaure a continuidade do movimento, ela não corresponde a um aumento no tamanho do armazenamento. Pelo contrário, permite descobrir informações redundantes e removê-las. Assim, apenas as informações onde ocorre uma mudança significativa na velocidade/direção são retidas. Esse processo é chamado de normalização e geralmente resulta em uma redução significativa no tamanho do armazenamento em comparação com os pontos de entrada.

Mas na prática, como funciona esse gerenciamento realizado pela extensão?

Pense em obter a velocidade média de um trem em movimento, sem nenhum código SQL longo, usando uma função e pronto.
Ou em armazenar dados GPS de forma muito compacta em uma única linha/coluna e ser capaz de fazer consultas complexas com muito pouco SQL.

É essa praticidade que o MobilityDB vai te proporcionar.

Você já tinha ouvido falar dessa extensão do PostgreSQL/PostGIS? Conte nos comentários

Fonte: webgis.tech
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11:00
Mappery: Mosaic map of Delft
sur Planet OSGeo

Impressive mosiac map of Delft, posted by Hans van der Kwast @hansakwast@fosstodon.org
MapsintheWild Mosaic map of Delft

9:40
Global Climate Change Impacts
sur Google Maps Mania

We have just experienced the warmest February on record. That makes it nine months in a row which have broken all previous record global temperatures. This means that over the last twelve months the world has exceeded 1.5 °C global heating compared to pre-industrial temperatures. The goal of 1.5 °C was set by the 2015 Paris Agreement because scientists believe that global heating above 1.5°C

1:00
GeoServer Team: How to Publish a GeoTIFF file in GeoServer
sur Planet OSGeo
GeoSpatial Techno is a startup focused on geospatial information that is providing e-learning courses to enhance the knowledge of geospatial information users, students, and other startups. The main approach of this startup is providing quality, valid specialized training in the field of geospatial information.

( YouTube | LinkedIn | Facebook | Reddit | X )
Publishing a GeoTIFF file in GeoServer
In this session, we want to talk about “How to Publish a GeoTIFF file in GeoServer” comprehensively. If you want to access the complete tutorial, simply click on the link.

Introduction
The GeoTIFF is a widely used geospatial raster data format, it is composed of a single file containing both the data and the georeferencing information. By default, GeoTIFF will be an option in the Raster Data Sources list when creating a new data store.

Note. In this blog post, we used GeoServer version 2.20.0.
Add a GeoTIFF data
To add a GeoTIFF data in GeoServer, follow these steps:
- Navigate to Data > Stores page, then click on the Add new Store link.
- Select the desired workspace from the drop-down menu.
- Enter the Data Source Name, make sure the Enabled option is checked. If checked, it enables the store. If unchecked (disabled), no data in the GeoTIFF will be served from GeoServer.
- In the URL under the Connection Parameters, browse to the location of the GeoTIFF file then press the Save button.
- Now you will be redirected to the New Layer page automatically and to add a layer for an available resource click on the Publish link.
- Check the Name, Coordinate Reference Systems and the Bounding Boxes fields are properly set and press the Save button.
Layer Groups
In Geoserver, a layer group serves as a convenient container for organizing layers and other layer groups in a structured hierarchy. By assigning a single layer to a layer group in WMS requests, the process of making requests is simplified as instead of specifying multiple individual layers, only one layer needs to be indicated. Furthermore, a layer group establishes a set order for the layers within it and enables the specification of alternative styles for the layers, distinct from their default settings.
Add a Layer Group
- To create a Layer Groups, navigate to Data > Stores page. Click on Add a new layer group link. The initial fields allow you to configure the name, title, abstract and workspace of the layer group. Enter the Data Source Name and Title.
- The Enabled checkbox, if disabled, will cause the layer group to just show up at configuration time, while the Advertised checkbox, if unchecked, will make it to not be available in GetCapabilities request and in the layer preview. The behaviour of layer group regarding both checkboxes will not affect the behaviour of any of the layers being grouped, which will follow respectively that specified in the corresponding edit page.
  
  Note. In the layer group section, Workspace selection is optional.
- The Bound section contain the data BoundingBox of this layer group in the native coordinate reference system. The input can be done manually or automatically with the help of Generate Bounds.
  
  Note. By default, a layer group is queryable when at least a child layer is queryable. Uncheck Queryable box if you want to explicitly indicate that it is not queryable independently of how the child layers are configured.
- To add more layers to the Layer Group list, you can press the Add Layer… button at the top of the table. From the popup window, select the layer to be added by clicking the layer name.
- A layer group can be added by pressing the Add Layer Group… button at the top of the table. From the list of layer groups, select the appropriate layer group’s name.
- A style group is a style that has one or more Named Layers which reference layers that exist in the catalog. Style groups can be added to Layer Groups as an alternative way of defining a collection of styled layers. To add it, press the Add Style Group… button at the top of the table and from the popup window, select the style group to be added by clicking its name.
- Press the generate bounds button to have geoserver compute the group bounds from the layers inside of it.
  
  Note. A layer group can contain layers with dissimilar bounds and projections. GeoServer automatically reprojects all layers to the projection of the layer group.
- When a layer group is processed, the layers are rendered in the order provided, so the publishable elements at the bottom of list will be rendered last and will show on top of the others. A publishable element can be positioned higher or lower on this list by pressing the green up or down arrows, respectively, or can be simply dragged in the target position.
- Metadata links allows linking to external documents that describe the data of layer group. Keywords make possible to associate a layer group with some keywords that will be used to assist catalog searching.
- Press Save button to create the new layer group.
Preview a Layer Group
So in order to preview the created layer, navigate to the Data > Layer Preview page and enter the name of your layer group in the search box, then press Enter button. Click on the OpenLayers link for a given layer and the view will display. An OpenLayers map loads in a new page and displays the group layer with the default styles. You can use the Preview Map to zoom and pan around the dataset, as well as display the attributes of features by click on each feature.
Using WMS layers in QGIS
To display a WMS layer in QGIS software, follow these steps:
- Open GQIS and navigate to Layer > Add Layer > Add WMS/WMTS Layer.
- To create a new service connection, from the Layers tab, press New button.
- Name your connection from the Connection Details. Next, from the URL textbox, you need to access a WMS layer as HTTP address of Web Map Server. In this case, name the connection as My Project and the URL as http://localhost:8080/geoserver/project/wms and press OK. Note that the “project” refers to the workspace defined in Geoserver.
- Press the Connect button to fetch the list of layers available, then press Add button and Close.
- Now, you will see the layer loaded in the QGIS canvas. You can zoom/pan around just like any other layer. The way WMS service works is that every time you zoom/pan, it sends your viewport coordinates to the server and the server creates an image for that viewport and return it to the client. So there will be some delay before you see the image for the area after you have zoomed in. Also, since the data you see is an image, there is no way to query for attributes like in a regular vector/imagery layer.
1:00
Camptocamp: OSGeo - OGC - ASF Code Sprint in Évora, Portugal
sur Planet OSGeo

Pièce jointe: [télécharger]

This unique gathering brought together key players in the field, including Camptocamp, a prominent contributor to the OsGeo community and a leading player in the steering committees of many of the association's projects.
07 March 2024
13:00
Fernando Quadro: Comparando GeoNode e ArcGIS Online: Qual é o certo para você?
sur Planet OSGeo

GeoNode e ArcGIS Online são plataformas de software GIS (Geographic Information System) que permitem a criação e o compartilhamento de mapas e aplicativos web. No entanto, existem diferenças importantes entre as duas plataformas que podem influenciar na escolha da solução mais adequada para suas necessidades. Este artigo tem como objetivo fornecer uma comparação entre essas plataformas, com foco em recursos, funcionalidades e sua adequação para instituições governamentais, empresariais e acadêmicas.

Funcionalidades

O Geonode é uma plataforma open-source com foco na catalogação, visualização e compartilhamento de dados geoespaciais, que apresenta facilidade de uso, gerenciamento e integração com diversas ferramentas e serviços web OGC (Open Geospatial Consortium).

O ArcGIS Online é uma plataforma robusta para criação de mapas e aplicativos WebGIS que possui uma ampla gama de funcionalidades para análise espacial, geoprocessamento e gerenciamento de dados, além da integração com outras plataformas ArcGIS e ferramentas da Esri.

Curva de aprendizado

O Geonode possui uma interface amigável e intuitiva, facilitando o aprendizado para iniciantes por meio de uma documentação completa e uma comunidade ativa que oferece suporte e ajuda aos usuários. Além disso, o Geonode possui uma curva de aprendizado mais suave para usuários com pouca ou nenhuma experiência em GIS.

O ArcGIS Online é uma plataforma mais complexa, com uma curva de aprendizado mais acentuada, o que requer conhecimentos técnicos em GIS para configuração, administração e desenvolvimento de aplicações. Essa plataforma possui documentação extensa e abrangente, com diversos recursos de aprendizado.

Documentação

A documentação do Geonode é recomendada para usuários iniciantes em GIS que buscam uma documentação mais simples e direta e para usuários que desejam configurar e usar a plataforma rapidamente.

O ArcGIS Online é recomendado para usuários experientes em GIS que buscam uma documentação completa e abrangente e para usuários que desejam explorar todos os recursos da plataforma.

Taxas de licenciamento e custos de assinatura

GeoNode: Sendo de código aberto, o GeoNode é totalmente gratuito para baixar, usar e modificar. Não há taxas de licenciamento ou custos de assinatura associados ao uso da plataforma.

ArcGIS Online: O ArcGIS Online exige uma taxa de licenciamento, que pode ser substancial, especialmente para organizações maiores ou com necessidades complexas de GIS. Além disso, poderão ser incorridos custos contínuos de assinatura para acesso a atualizações e suporte.

Personalização e Desenvolvimento

O GeoNode: A natureza de código aberto do GeoNode permite ampla personalização e desenvolvimento. As organizações podem adaptar a plataforma às suas necessidades específicas sem incorrer em custos adicionais com ferramentas de desenvolvimento proprietárias.

ArcGIS Online: A personalização no ArcGIS Online pode exigir o uso de ferramentas e APIs proprietárias, potencialmente levando a taxas de licenciamento ou custos de desenvolvimento
adicionais.

Escalabilidade e flexibilidade

GeoNode: A escalabilidade do GeoNode não está vinculada a níveis de licenciamento ou níveis de assinatura. As organizações podem dimensionar a implantação do GeoNode conforme necessário, sem incorrer em custos adicionais de licenciamento.

ArcGIS Online: O dimensionamento do ArcGIS Online pode exigir a compra de licenças adicionais ou níveis de assinatura, o que pode se tornar caro à medida que as necessidades de GIS de uma organização aumentam.

Mas enfim, quando devo usar cada uma das ferramentas?

Use o GeoNode se fizer parte de uma pequena, média ou grande organização com necessidades essenciais de mapeamento e compartilhamento de dados geoespaciais e que, além disso, busque uma solução open-source, fácil de usar e sem custos de licenças.

Use o ArcGIS Online se fizer parte de uma grande organização com recursos que possua necessidades complexas de GIS e que busquem uma plataforma robusta e com ampla gama de funcionalidades para usuários que já estão familiarizados com outras plataformas ArcGIS e ferramentas da Esri.

Ficou interessado?

Acesse: [https:]]
WhatsApp: [https:]]

10:16
The Distressed Communities of America
sur Google Maps Mania

The Distressed Community Index from the Economic Innovation Group reveals the levels of economic well-being in all US neighborhoods. The Index uses seven different metrics to give every zipcode area a score out of 100, ranging from the most prosperous (0) to the most distressed (100).You can explore which neighborhoods in your city are the most and least distressed on the 2024 Distressed

06 March 2024
13:00
Fernando Quadro: Os 5 benefícios da Infraestrutura de Dados Espaciais
sur Planet OSGeo

A Infraestrutura de Dados Espaciais (IDE) é uma ferramenta essencial no Geoprocessamento, oferecendo uma série de benefícios. Com a utilização da IDE, é possível organizar, armazenar e compartilhar dados espaciais de forma eficiente, facilitando o acesso e a análise dessas informações.

Princípios como a padronização e a interoperabilidade são fundamentais para o bom funcionamento da IDE, garantindo a qualidade e a integridade dos dados. Além disso, fatores históricos, como o avanço da tecnologia e a democratização do acesso à informação, contribuíram para o desenvolvimento e a popularização da Infraestrutura de Dados Espaciais.

Os benefícios:

Melhor organização e gestão dos dados
Maior eficiência na análise espacial
Facilidade no compartilhamento de informações
Melhor tomada de decisões
Estímulo à inovação e desenvolvimento tecnológico

As aplicações da IDE são diversas, abrangendo áreas como planejamento urbano, gestão ambiental, agricultura, transporte e muitas outras. Através da utilização de mapas e análises espaciais, é possível obter informações valiosas para a tomada de decisões, contribuindo para o desenvolvimento sustentável e a melhoria da qualidade de vida.

E onde o GeoNode se encaixa nisso?

O GeoNode é uma plataforma para gestão e publicação de dados geoespaciais que reúne projetos open source maduros e estáveis sob uma interface consistente e fácil de usar. Com ele você consegue implantar sua IDE de forma fácil e prática.

Quer saber mais?

O Curso é oferecido na modalidade EAD Ao Vivo, com uma carga horária de 18 horas divididas em 6 encontros. Porém, essas aulas são gravadas e ficam disponíveis ao aluno por 12 meses em nosso portal do aluno.

Então, se por acaso você não puder comparecer em alguma das aulas ao vivo, não se preocupe, você poderá rever a aula gravada a qualquer momento.

Em comemoração ao aniversário de 12 anos da Geocursos, estamos disponibilizando pra você R$ 100 de desconto, basta utilizar o cupom GEOCURSOS12ANOS

Ficou interessado?

Acesse: [https:]]
WhatsApp: [https:]]

10:04
There are 2,773 stories in the Naked City
sur Google Maps Mania

The 1960's procedural police series the Naked City used to conclude every episode with the line: "There are eight million stories in the naked city. This has been one of them." If there are eight million stories in New York then The City has got quite a long way to go before it is finished reporting on them. So far it has managed to find only 2,773 stories in NYC.The City asked ChatGPT to find

8:19
OPENGIS.ch: INTERLIS Crashkurs Webinar
sur Planet OSGeo
Der Crashkurs dauert 2.5 Stunden via Google Meet (kein Google Konto erforderlich) und kostet 90 CHF pro Person.
Beschreibung
Ziel dieses Crashkurses ist es, “blutigen Anfänger:innen” INTERLIS näher zu bringen. Nach dem Crashkurs werden sie wissen, was INTERLIS ist, wie es angewendet wird und wie ein Modell gelesen wird und man sich darin zurechtfindet. Weiter werden sie fähig sein, ein einfaches Beispielmodell selbst zu modellieren.
Vorkenntnisse
Keine.
Software
Keine. Das Webinar ist primär frontal und es muss keine Software vorinstalliert werden.

Um gleich ein bisschen mitzumachen, können aber optional folgende Tools installiert werden, im Idealfall auf einem separaten Bildschirm:
- Aktuelle QGIS LTR Version für Windows, macOS oder Linux https://download.qgis.org.
- VS Code Texteditor
Kurskalender und Anmeldung
4:38
Adam Steer: Image transects for ecological assessment
sur Planet OSGeo

Sometimes we don’t need to create full blown orthophotos and 3D models to understand things. Just seeing an image in a location context is enough. With this in mind, I was recenly tasked by Taungurung Land and Waters Council to collect a set of baseline images along preset transects for ecological assessment. The transects were… Read More »Image transects for ecological assessment
05 March 2024
17:29
GeoSolutions: GeoSolutions at CalGIS in Visalia, California – March 18-20, 2024
sur Planet OSGeo

You must be logged into the site to view this content.
13:00
Fernando Quadro: O que é um WebGIS
sur Planet OSGeo

WebGIS é uma tecnologia usada para exibir e analisar dados espaciais na Internet. Ele combina as vantagens da Internet e do GIS oferecendo um novo meio de acessar informações espaciais sem a necessidade de você possuir ou instalar um software GIS.

A necessidade de divulgação de dados geoespaciais têm estimulado cada vez mais o uso de ferramentas WebGIS para apresentações interativas de mapas e de informações relacionadas por meio da internet.

As soluções adotadas na apresentação destes mapas devem apresentar um equilíbrio entre facilidade de uso, riqueza de recursos para visualização e navegação entre os dados, e funcionalidades geoespaciais para pós-processamento, características que devem ser adequadas para cada perfil de usuário que acessará o WebGIS.

Fonte: webgis.tech
Instagram: [https:]]
LinkedIn: [https:]]
9:47
gvSIG Team: Coordinación CArtográfica en el Sistema de Administración del Territorio (CCASAT)
sur Planet OSGeo

Compartimos información sobre CCASAT un grupo de trabajo de expertos en administración del territorio del cual la Asociación gvSIG formamos parte.

Coordinación CArtográfica en el Sistema de Administración del Territorio (CCASAT) es un grupo con sede en la Universitat Politécnica de València, España; en el Departamento de Ingeniería Cartográfica, Geodesia y Fotogrametría (DICGF) y en la Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica (ETSIGCT), cuyos objetivos principales son:

Apoyo, colaboración e investigación en todos aquellos ámbitos relacionados con la información cartográfica que permita una administración efectiva del territorio (como la información catastral, y/o la información registral, o similar), y fundamentalmente en aspectos que sirvan de apoyo para conseguir seguridad en la tenencia de la tierra, y valoración con efecto administrativo. Fomentando la difusión, transferencia de conocimientos, investigación, coordinación, consultoría y optimización de recursos.

CCASAT está enfocado principalmente a España y Latinoamérica, siendo el idioma principal el español.

http://www.ccasat.upv.es

9:37
Attacks on the Press Map 2023
sur Google Maps Mania

More journalists have been killed in the Israel-Gaza war zone in the last three months than have ever been killed in a single country over the course of an entire year. In fact according to the Committee to Protect Journalists' annual report, Attacks on the Press, nearly 75% of journalists killed around the world in 2023 died in Israel’s war on Gaza.You can explore the results of the CPJ's

04 March 2024
13:00
GeoTools Team: GeoTools 31-RC Release Candidate
sur Planet OSGeo

 The GeoTools team is pleased share a release candidate  GeoTools 31-RC: geotools-31-RC-bin.zip  geotools-31-RC-doc.zip  geotools-31-RC-userguide.zip  geotools-31-RC-project.zip  This release candidate is also available from the OSGeo Maven Repository and is made in conjunction with GeoServer 2.25-RC. The release was made by Jody Garnett (GeoCat).Testing
10:47
Stefano Costa: ènostra e la transizione energetica dal basso a Savona
sur Planet OSGeo

Venerdì 1 marzo ero a Savona per parlare di transizione energetica dal basso alla Società di Mutuo Soccorso Fornaci, insieme al gruppo territoriale di ènostra. Ci avevano invitati il comitato No rigassificatore e il comitato Fermiamo il mostro per una serata insieme a due associazioni genovesi con cui collaboriamo spesso, Cittadini sostenibili e CER Sole.

Savona e Vado Ligure non assistono passivamente alle scelte assurde dei politici regionali e locali di accogliere un rigassificatore che inquina il mare, deturpa il territorio con tutto il gasdotto necessario a terra, contribuisce a inquinare l’aria rimanendo ancorati alle fonti fossili e arricchendo le grandi multinazionali. C’è stato un risveglio che ha portato a una lunga catena umana lungo la costa, tante mobilitazioni e molti resistono all’idea di avere dei benefici “compensativi”.

La serata è stata lunga e la partecipazione grande, nonostante la pioggia. Si è parlato dei danni che derivano dalle fonti fossili per il clima e per la salute, delle false notizie sulle rinnovabili, delle comunità energetiche. E io ho presentato le attività di ènostra. Ero piuttosto stanco ma con l’aiuto degli altri soci del gruppo territoriale ho spiegato cosa fa la cooperativa, che principi la guidano e l’importanza della partecipazione alle scelte energetiche al di là del cambio di fornitura. Non tutta l’energia rinnovabile è uguale e quella fatta dal basso, attenta agli impatti sociali e ambientali è quella che preferiamo.

L’accoglienza del comitato è stata molto generosa e sono contento che sia nato questo legame.

Cos’è una cooperativa energetica e cosa fa in concreto (video Youtube)

9:55
Can you Draw Europe?
sur Google Maps Mania

Huge Quiz's Europe Country Drawing Challenge has quickly become my new favorite online game. This is despite the fact that I am absolutely terrible at it and have yet to achieve anything other than a totally embarrassing score.The premise of the Europe Country Drawing Challenge is very easy. All you have to do is draw European countries on top of a satellite map of Europe. For each country you

1:00
GeoServer Team: GeoServer 2.25-RC Release
sur Planet OSGeo
GeoServer 2.25-RC release is now available with downloads (bin, war, windows), along with docs and extensions.

This is a release candidate intended for public review and feedback. GeoServer 2.25-RC is made in conjunction with GeoTools 31-RC, and GeoWebCache 1.25-RC.

Thanks to Jody Garnett (GeoCat) for making this release.
Why share a release candidate?
A sensible question to ask is why a “release candidate” is being produced at all - when we do not recommend running such a thing in production.

GeoServer also follows a “release early, release often” approach which is where the project shares releases so you can test and provide feedback.

This results in a lovely balance:
- The GeoServer developer has already tested on the data and data sources they got handy.
- The users of GeoServer have access to a much greater variety in data and and use cases to test with.
  
  Please try out this release candidate and let us know how it works for you.
- Bonus: By testing with your data directory you are assured that the next GeoServer will work well for you and your team.
This balance of a community sharing and each doing what they can they can do easily, is a nice thing about the open-source approach: the result is software we can trust and works well.

Thank you for being part of the GeoServer community. Testing and feedback is welcome by email and bug reports.
Upgrade Notes
We have a number of configuration changes when updating an existing system:
- The longstanding ENTITY_RESOLUTION_ALLOWLIST setting has been recommended as a way to control the locations available for external entity resolution when parsing XML documents and requests.
  
  The default has changed from * (allowing any location) to allowing the recommended www.w3.org, schemas.opengis.net, www.opengis.net locations used for OGC Web Services, along with the inspire.ec.europa.eu/schemas location used by our friends in Europe.
- The FreeMarker Template HTML Auto-escaping is now enabled by default.
- The spring security firewall is now enabled by default.
- A new configuration setting is available to limit content served from the geoserver/www folder.
  
  If you have not met the www folder before it is used to share content, and there is a tutorial serving static files.
- We do add recommendations to production considerations over time, if you have not checked that page in a while please review.
Thanks to Steve Ikeoka and Jody Garnett for these improvements.
Security Considerations
This a reminder to update to GeoServer 2.24.2 Release (or GeoServer 2.35.5 Release).

Alongside the upcoming GeoServer 2.25.0 release we will “publicly disclose” a list of Common Vulnerabilities and Exposures that have been addressed previously.
- If you are working with a commercial support provider that volunteers with the geoserver-security email list they are already informed.
- If you have updated to GeoServer 2.24.2 Release (or GeoServer 2.23.5 Release) you are already patched.
I hope you enjoy our team’s effort to improve communication. The use of the CVE system allows us to reach a wider audience than reads these blog posts.

See the project security policy for more information on how security vulnerabilities are managed.
Experimental Java 21 support
GeoServer, along with GeoTools and GeoWebCache, are now tested to build and pass tests with Java 21.

This is not yet an endorsement to run GeoServer in production with Java 21. We are looking ahead at the 2024 roadmap, and are making sure the basics are covered for the newer Java releases.
JTS fast polygon intersection enabled by default
The JTS Next Generation polygon intersection algorithm has been enabled by default, which will improve performance of a number of operations, including WPS processes and the vector tiles generation. We deem the functionality well tested enough that it should be opened to the majority of users, even if it’s still possible to turn it off by adding the -Djts.overlay=old.

MapML Extension
The MapML extension is receiving a number of updates and improvements, with more to come in the following months. It’s now possible to declare “Tiled CRS” as the CRS for a layer, with the implication not just of the CRS, but also of the gridset that will be used by the MapML viewer:

This portion builds on top of the work done months ago to support astronomical CRSs, which allows GeoServer to support multiple CRS authorities.

The MapML preview links are now using the new MapML output format, while the old dedicated REST controller has been removed. This allows for better integration of the MapML format in the GeoServer ecosystem. The MapML viewer has also been updated to the latest version:

Thanks to Joseph Miller and Andrea Aime (GeoSolutions) for this work, and Natural Resources Canada for sponsoring it.
Community Module Updates
Much of the new activity in GeoServer starts as a community module. We’d like to remind you that these modules are not yet supported, and invite you to join the effort by participating in their development, as well as testing them and providing feedback.
Raster attribute Table community module
Developed as part of GEOS-11175, the Raster Attribute Table community module uses the GDAL Raster Attribute Table (RAT) to provide a way to associate attribute information for individual pixel values within the raster, to create styles as well as to provide a richer GetFeatureInfo output.

For more information see the user guide.

We’d like to thank Andrea Aime (GeoSolutions) for the development and NOAA for sponsoring.
Graticules for WMS maps
The graticules community module, developed as part of GEOS-11216, provides a datastore generating graticules for WMS maps, along with a rendering transformation that can be used to label them. The module can be used to draw a graticule in WMS maps, as well as to download them as part of WFS (or in combination with the WPS download module).

We’d like to thank Ian Turton for development and GeoSolutions for sponsoring the work.
GeoServer monitor Kafka storage
The monitoring Kafka storage module, developed as part of GEOS-11150, allows storing the requests captured by the monitoring extension into a Kafka topic.

We’d like to thank Simon Hofer for sharing his work with the community. To learn more about the module, how to install and use it, see the user-guide.
JWT Headers
The JWT headers module has been developed as part of GEOS-11317.

The module is a new authentication filter that can read JWT Headers, as well as general JSON payloads and simple strings, to identify a user, as well as to extract their roles. The combination of Apache mod_auth_openidc with geoserver-jwt-headers-plugin provides an alternative to using the geoserver-sec-oauth2-openid-connect-plugin plugin.

We’d like to thank David Blasby (GeoCat) for this work on this module.
Full Release notes
New Feature:
- GEOS-11225 [AuthKey] AuthKey synchronize the user/group automatically
MapML:
- GEOS-10438 ENTITY_RESOLUTION_ALLOWLIST property not parsing empty setting
- GEOS-11207 Refactor MapML MVC controller as GetMap-based operation with standard parameter format
- GEOS-11221 mkdocs preflight rst fixes
- GEOS-11289 Enable Spring Security Stric [HttpFirewall] by default
- GEOS-11297 Escape WMS GetFeatureInfo HTML output by default
- GEOS-11300 Centralize access to static web files
Improvement:
- GEOS-11130 Sort parent role dropdown in Add a new role
- GEOS-11142 Add mime type mapping for yaml files
- GEOS-11148 Update response headers for the Resources REST API
- GEOS-11149 Update response headers for the Style Publisher
- GEOS-11152 Improve handling special characters in the Simple SVG Renderer
- GEOS-11153 Improve handling special characters in the WMS OpenLayers Format
- GEOS-11155 Add the X-Content-Type-Options header
- GEOS-11173 Default to using [HttpOnly] session cookies
- GEOS-11176 Add validation to file wrapper resource paths
- GEOS-11213 Improve REST external upload method unzipping
- GEOS-11222 Include Conformance Class for “Search” from OGC API - Features Part 5 proposal
- GEOS-11226 Enable JTS OverlayNG by default
- GEOS-11246 Schemaless plugin performance for WFS
- GEOS-11247 Avoid HTML annotations special status in APIBodyProcessor
- GEOS-11248 Move version header handling from APIBodyMethodProcessor to APIDispatcher
- GEOS-11260 JNDI tutorial uses outdated syntax
- GEOS-11288 Improve input validation in ClasspathPublisher
- GEOS-11289 Enable Spring Security Stric [HttpFirewall] by default
- GEOS-11298 When a Raster Attribute Table is available, expose its attributes in GetFeatureInfo
Bug:
- GEOS-11050 jdbc-store broken by changes to Paths.names
- GEOS-11051 Env parametrization does not save correctly in AuthKey extension
- GEOS-11145 The GUI “wait spinner” is not visible any longer
- GEOS-11182 Avoid legends with duplicated entries
- GEOS-11187 Configuring a raster with NaN as NODATA results in two NaN in the nodata band description
- GEOS-11190 GeoFence: align log4j2 deps
- GEOS-11203 WMS GetFeatureInfo bad WKT exception for label-geometry
- GEOS-11224 Platform independent binary doesn’t start properly with default data directory
- GEOS-11250 WFS GeoJSON encoder fails with an exception if an infinity number is used in the geometry
- GEOS-11278 metadata: only selected tab is submitted
- GEOS-11312 Used memory calculation fix on legend WMS request
Task:
- GEOS-11242 Remove the Xalan library
- GEOS-11315 Revert to CORS commented out
- GEOS-11318 Update postgresql to 42.7.2
- GEOS-11134 Feedback on download bundles: README, RUNNING, GPL html files
- GEOS-11141 production consideration for logging configuration hardening
- GEOS-11159 Update mapfish-print-lib 2.3.0
- GEOS-11180 Update ImageIO-EXT to 1.4.9
- GEOS-11181 Update jai-ext to 1.1.25
- GEOS-11186 Fix maven enforcer failFast
- GEOS-11220 Upgrade Hazelcast from 5.3.1 to 5.3.6
- GEOS-11245 Update OSHI from 6.2.2 to 6.4.10
- GEOS-11316 Update Spring version to 5.3.32
Community module development:
- GEOS-11305 Add layer information in the models backing STAC
- GEOS-11146 Fix MBTiles output format test
- GEOS-11184 ncwms module has a compile dependency on gs-web-core test jar
- GEOS-11209 Open ID Connect Proof Key of Code Exchange (PKCE)
- GEOS-11212 OIDC accessToken verification using only JWKs URI
- GEOS-11219 Upgraded mail and activation libraries for SMTP compatibility
- GEOS-11293 Improve performance of wps-lontigudinal-profile
About GeoServer 2.25 Series
Additional information on GeoServer 2.25 series:
Release notes: ( 2.25-RC )
02 March 2024
17:35
Stefano Costa: Install iosacal with conda
sur Planet OSGeo
Starting today, you can install iosacal with conda. This adds to the existing installation procedure with pip. Conda is a good fit for complex projects and has better tooling for reproducibility.

Installing iosacal can be achieved by adding conda-forge to your channels with:
```
conda config --add channels conda-forge conda config --set channel_priority strict
```
Once the conda-forge channel has been enabled, iosacal can be installed with conda:
```
conda install iosacal
```
or with mamba:
```
mamba install iosacal
```

9:59
Solar Symbology
sur Google Maps Mania

The one thing that you are guaranteed to see before a solar eclipse is lots of maps. With just over a month to go before April 8th's total solar eclipse new solar eclipse maps are being released almost daily. The Spanish Language television network Univision has released an interactive map which is very similar to the Bloomberg eclipse map (see below) but is even better. Like Bloomerg's

01 March 2024
20:39
Fernando Quadro: Curso de GeoNode com inscrições abertas!
sur Planet OSGeo

Aprenda a montar a sua própria Infraestrutura de Dados Espaciais com o GeoNode, uma plataforma para gestão e publicação de dados geoespaciais que reúne projetos open-source maduros e estáveis sob uma interface consistente e fácil de usar, permitindo que os usuários, compartilhem seus dados de forma rápida e facil.

Este novo curso visa capacitar os profissionais no uso eficiente da plataforma GeoNode, e tem como objetivos:

Familiarizar os participantes com os conceitos fundamentais do Geonode e suas capacidades.
Explorar o funcionamento de servidores de mapas e seus benefícios.
Apresentar os padrões de dados do Open Geospatial Consortium (OGC), como Web Map Service (WMS) e Web Feature Service (WFS), para interoperabilidade geoespacial.
Demonstrar a publicação eficiente de dados no Geonode usando views de bancos de dados geográficos.
Ensinar a integração do Geonode com o QGIS através de plugins.

Quer saber mais?

O Curso é oferecido na modalidade EAD Ao Vivo, com uma carga horária de 18 horas divididos em 6 encontros. Porém, essas aulas são gravadas e ficam disponíveis ao aluno por 12 meses em nosso portal do aluno.

Então, se por acaso você não puder comparecer em alguma das aulas ao vivo, não se preocupe, você poderá rever a aula gravada a qualquer momento.

Em comemoração ao aniversário de 12 anos da Geocursos, estamos disponibilizando pra você R$ 100 de desconto, basta utilizar o cupom GEOCURSOS12ANOS

Ficou interessado?

Acesse: [https:]]
WhatsApp: [https:]]
17:27
Stefano Costa: IOSACal in Google Colab
sur Planet OSGeo

Google Colab is a popular notebook service that you can run directly from your browser. Python is natively supported and it’s fairly easy to run a Jupyter notebook, even with custom dependencies like Numpy and Matplotlib.

You can run IOSACal in Google Colab! I have added a new short how-to guide in the official documentation. Find the how-to at [https:]] .

This takes advantage of a demo notebook that was contributed by Jelmer Wind.
A screenshot of the demo notebook running IOSACal in Google Colab. Even with a plot!

10:02
Cities Need Trees
sur Google Maps Mania

Tree density in TokyoNew York needs 113.9 million more trees in order to become carbon neutral.Picterra has calculated which cities around the world have the most and least trees. Using their own geospatial AI detection platform with tree counting software and forestry monitoring tools Picterra has mapped and counted the number of trees in 26 global cities. It has then calculated how many more
29 February 2024
9:25
Who Deserves a Monument Anyway?
sur Google Maps Mania

Distribution of Confederate monumentsThanks to Geochicas and the Mapping Diversity project there has been quite a lot of data analysis undertaken over the last few years into the lack of diversity in the street names of cities around the world. According to Mapping Diversity in the 32 cities which they have analyzed "More than 90% of the streets named after individuals are dedicated to white

28 February 2024
18:00
OTB Team: OTB Release 9.0.0
sur Planet OSGeo

Dear OTB community, We are happy to announce that OTB version 9.0.0 has been released! Ready to use binary packages are available on the package page of the website: The Docker image is available :docker pull orfeotoolbox/otb:9.0.0 It is also possible to checkout the branch with git: git clone [https:] OTB -b release-9.0 The documentation […]

3:30
Online GeoJSON Editors
sur Google Maps Mania

Placemark Playgeojson.ioVector GeoJSONGeoman Geojson Editor I use online geojson editors very regularly to create and edit geographical data. I find online editors particularly useful for tidying up and minimizing third-party data which I have downloaded from elsewhere. For example an editor can be very useful for previewing data exported from overpass turbo, and then manipulating that data
27 February 2024
10:21
The Supply Chain of Deforestation
sur Google Maps Mania

Palm oil production is a major contributor to deforestation, particularly in Southeast Asia. To meet the growing demand for palm oil, every year vast areas of rainforests and other ecosystems are cleared and converted into large-scale oil palm plantations. Palm oil is the most widely used vegetable oil globally and it is found in around half of the products in your local supermarket,
26 February 2024
9:10
Street View Surveillance
sur Google Maps Mania

The Electronic Frontier Foundation's Spot the Surveillance game is a virtual reality game which requires players to identify surveillance equipment in a panoramic image of a San Francisco street scene. Panning around this 360 degree view players are required to detect the every day surveillance equipment which is now routinely used on America's streets, such as body-worn cameras, automated

24 February 2024
20:26
Free and Open Source GIS Ramblings: Trajectools 2.0 released ?
sur Planet OSGeo
It’s my pleasure to share with you that Trajectools 2.0 just landed in the official QGIS Plugin Repository.

This is the first version without the “experimental” flag. If you look at the plugin release history, you will see that the previous release was from 2020. That’s quite a while ago and a lot has happened since, including the development of MovingPandas.
Let’s have a look what’s new!
The old “Trajectories from point layer”, “Add heading to points”, and “Add speed (m/s) to points” algorithms have been superseded by the new “Create trajectories” algorithm which automatically computes speeds and headings when creating the trajectory outputs.

“Day trajectories from point layer” is covered by the new “Split trajectories at time intervals” which supports splitting by hour, day, month, and year.

“Clip trajectories by extent” still exists but, additionally, we can now also “Clip trajectories by polygon layer”

There are two new event extraction algorithms to “Extract OD points” and “Extract OD points”, as well as the related “Split trajectories at stops”. Additionally, we can also “Split trajectories at observation gaps”.

Trajectory outputs, by default, come as a pair of a point layer and a line layer. Depending on your use case, you can use both or pick just one of them. By default, the line layer is styled with a gradient line that makes it easy to see the movement direction:

while the default point layer style shows the movement speed:
How to use Trajectools
Trajectools 2.0 is powered by MovingPandas. You will need to install MovingPandas in your QGIS Python environment. I recommend installing both QGIS and MovingPandas from conda-forge:
```
(base) conda create -n qgis -c conda-forge python=3.9 
(base) conda activate qgis
(qgis) mamba install -c conda-forge qgis movingpandas
```
The plugin download includes small trajectory sample datasets so you can get started immediately.
Outlook
There is still some work to do to reach feature parity with MovingPandas. Stay tuned for more trajectory algorithms, including but not limited to down-sampling, smoothing, and outlier cleaning.

I’m also reviewing other existing QGIS plugins to see how they can complement each other. If you know a plugin I should look into, please leave a note in the comments.

11:11
The Street Names of Budapest
sur Google Maps Mania

Over 2,600 locations in Budapest have place-names which derive from people. Names and Spaces - Budapest is a fantastic mapped analysis of who Budapest's streets and public spaces were named after and what this reveals about the city's history.The map is in Hungarian but works fairly seamlessly with Google Translate in Chrome. If you don't have access to Google Translate then you can still enjoy

23 February 2024
14:17
geomatico: Desarrollo de un gemelo digital para la gestión del agua
sur Planet OSGeo

La escasez de agua en la agricultura, agravada por el cambio climático, amenaza la seguridad alimentaria. Los sistemas de riego eficientes son clave para mitigar estos desafíos, optimizando el uso del agua y fortaleciendo la resiliencia agrícola.

Entre 2022 y 2023 hemos desarrollado un gemelo digital de gestión del agua en agricultura junto al IRTA (Instituto de Investigación y Tecnología Agroalimentaria). En la aplicación web se pueden monitorizar y analizar casi 300 mil parcelas simbolizadas semanalmente por 17 indicadores (unos 250 millones de registros por año) que permiten optimizar la irrigación.

9:25
Four Seasons in One Map
sur Google Maps Mania

Chronolog is an interactive map of timelapse photographs designed to help monitor the environment. It is a citizen science project which encourages organizations and individuals to engage with nature while recording and monitoring the changing environment.The Chronolog map allows you to explore timelapse photos of nature which have been captured around the USA (and one or two in other countries

22 February 2024
21:00
QGIS España: Publicación del libro Introducción a los Sistemas de Información Geográfica con QGIS
sur Planet OSGeo
Publicada la Segunda Edición del Libro “Introducción a los Sistemas de Información Geográfica con QGIS” de Federico Gazaba
Una pregunta recurrente en redes sociales es ¿Dónde puedo encontrar un manual para aprender a usar QGIS? o ¿Cómo puedo iniciarme en el uso de los Sistemas de Información Geográfica (SIG)? Hace aproximadamente 3 años Federico Gazaba publicaba la pimera versión de su libro “Introducción a los Sistemas de Información Geográfica con QGIS” un manual que en su momento fue de referencia obligada para las personas usuarias de QGIS en habla hispana pero que con el paso del tiempo había quedado desactualizado debido a la aparición de nuevas versiones de QGIS.

Recientemente el autor nos comentaba que se estaba preparando una actualización de libro y no nos ha hecho esperar mucho, el 22 de Febrero nos anunciaba en el canal de Telegram de QGIS en español que la versión 2.0 había sido publicada: _“Hola amigos #geoinquietos !. Lo prometido es deuda, les traigo la versión 2.0 de mi libro libre “Introducción a los Sistemas de Información Geográfica con QGIS”. Esta versión actualiza los contenidos de la versión anterior a QGIS 3.34 Prizren.".

El libro ha sido publicado bajo la licencia CC BY-SA 4.0 lo que permite que sea compartido o modificado, para cualquier proposito, con libertad mientras se respete la atribución al autor y se comparta con la misma licencia. Se puede descargar aquí o aquí el repositorio del libro se puede encontrar en GitHub

Este libro es otro ejemplo que demuestra que los proyectos de software libre y open source permiten compartir y colaborar en este tipo de iniciativas donde podemos participar de forma activa y generar grandes sinergias en sus aplicaciones y desarrollos en beneficio, tanto de las comunidades que las desarrollan como las que las usan.

Federico Gazaba es profesor de Matemáticas y Técnico Maestro Mayor de Obras y actualmente es docente en el Instituto de Formación Docente y Técnica 122 “Presidente Illia” de Pergamino (Provincia de Buenos Aires, Argentina) y Director de Sistemas de Información Georreferenciada de la Municipalidad de Pergamino. Desde el año de 2013 es usuario de QGIS y es un entusiasta del las tecnologías libres y de los datos espaciales abiertos. La creación del manual nace de la necesidad de impartir cursos de QGIS a sus colegas de municipalidad y es el resultado de la sistematización de esas enseñanzas. Desde 2016, de forma ininterrumpida, imparte cursos introductorios a los SIG para diferentes instituciones.

Puedes seguir a Federico en la siguientes redes sociales:
- X: [https:]]
- Mastodon: [https:]]
- Telegram: @federicogazaba
- Github [https:]]

11:13
Geo-BIM for the Built Environment
sur Open Geospatial Consortium (OGC)

OGC holds three Member Meetings each year – one each in Europe, the Americas, and Asia Pacific – where OGC’s Standards Working Groups (SWGs), Domain Working Groups (DWGs), Members, and other geospatial experts meet to progress Standards, provide feedback on initiatives being run by the OGC Collaborative Solutions and Innovation (COSI) Program, hear about the latest happenings at OGC, network with the leaders of the geospatial community, and see what’s coming next. The meetings are open to the public, though there are some closed sessions, and provide a great way to start to get to know – and get involved with – the OGC Community.

The next OGC Member Meeting, OGC’s 128th, will be held at TU Delft on March 25-28, 2024. Fitting for TU Delft and the Netherlands, the theme of the meeting will be ‘Geo-BIM For the Built Environment.’ Meeting sponsorship is generously provided by TU Delft and Geonovum, with support from GeoCAT and digiGO. In the lead up to the event, Geonovum produced a short video highlighting what to expect in Delft.

“In many respects, the Netherlands is the world leader in the use of advanced integration of building data and detailed urban mapping, as well as the use of Open Standards and Open APIs to interface with those data to provide citizen services,” commented Scott Simmons, OGC’s Chief Standards Officer.

“More specifically, TU Delft is a world-leading research institute in Geo-BIM integration, while Geonovum, another meeting sponsor, has done so much to promote the effective use of Open Standards in government & e-government, including documenting proof that Open Standards make things work better, faster, and cheaper.”

Under the theme, the OGC Member Meeting will include several sessions related to the built environment and the integration of Geospatial and Building Information Models (BIM). Such sessions will include: a Geo-BIM Summit that non-members are encouraged to attend; a Built Environment Joint Session; and a Land Administration Special Session.

On top of these, there will be a meeting of the OGC Europe Forum, sessions on Geospatial Reporting Indicators, Observational Data, the ‘Today’s Innovations, Tomorrow’s Technologies’ Future Directions Session, networking opportunities, and the usual host of OGC Working Group meetings on topics ranging from APIs to agriculture, and the sea-floor to space. Most sessions are open to the public, with special encouragement for non-OGC-members to attend the Geo-BIM Summit and any of the Domain Working Group meetings. As always, the opening session will consist of presentations from local organizations that showcase the world-leading geospatial technologies seen in The Netherlands.
Dr. Rune Floberghagen, Head of the Science, Applications and Climate Department in the Directorate for Earth Observation Programmes, ESA, was one of the local experts that presented at the opening session of the 125th Member Meeting in Frascati, Italy. Geo-BIM Summit
The Geo-BIM Summit will run on Wednesday afternoon and will focus on the integration of geographic data and Building Information Models (BIM).

“In the Building Information Modeling (BIM) world, geographical data about the environment of the construction is becoming increasingly important,” said Prof. Dr. Jantien Stoter, Chair of the OGC 3D Information Management DWG, and part of the organizing committee for the Geo-BIM session. “Similarly, in the Geospatial domain, the need for detailed information about buildings is also growing. There are many initiatives to develop solutions that better facilitate this integration, including projects that realize this integration for a specific use case; automated conversion of data between the two domains; methods to georeference BIM files in a standardized and straightforward way; and profiles for standards that establish the integration for specific use-cases. The Geo-BIM session will present such initiatives in order to address the question of “what more is needed to improve the integration?” This will further shape the OGC & buildingSMART Road Map on integration of both domains, and contribute to the best practices currently under development.”
Built Environment Joint Session
Two sessions on the Built Environment will run on Wednesday morning. The first is entitled “The Future of Land Infra” and will discuss what more we need to do in the standardization of built infrastructure data, in terms of updating, improving or adding to the OGC Standards Portfolio, and will include input from several OGC activities: the Integrated Digital Built Environment (IDBE) subcommittee, LandAdmin DWG, Model for Underground Data Definition and Integration (MUDDI) SWG; and the Geotech Interoperability Experiment, as well as the wider OGC Collaborative Solutions and Innovation (COSI) Program.

The next session is entitled “What Urban Digital Twins mean to OGC” and will focus on the wider work that OGC is doing in the space and how the Digital Twins DWG can help harmonize it. The session will also include a cross-working-group discussion on the in-progress OGC Urban Digital Twins Position Paper, as well as a presentation by Binyu Lei, researcher at the Urban Analytics Lab at the National University of Singapore, entitled “Humans as Sensors in Urban Digital Twins.”
Attendees at the 123rd Member Meeting in Madrid, Spain. Land Admin Special Session
Following the opening session and keynotes on Monday is a Land Admin special session run by the OGC Land Administration (Land Admin) DWG.

“Worldwide, effective, and efficient land administration is an ongoing concern, inhibiting economic growth and property tenure,” commented Eva-Maria Unger, co-chair of the OGC Land Admin DWG. “Only a limited number of countries globally have a mature land information system.”

The Land Admin Special Session will also be the first meeting of the soon-to-be-formed OGC Land Administration Domain Model (LADM) SWG.

“This is a fairly significant session as we’re going to use it to kick off an effort to create an encoding Standard for Land Administration data that’s globally relevant,” said Scott Simmons. “It’s great to be holding it in Delft because Kadaster, the Netherlands’ Cadaster, Land Registry and Mapping Agency, is one of the world leaders in providing expertise on use of Land Administration and Land Administration modernization across not just Europe but for developing nations around the world. So it’s an opportunity to bring together their expertise along with representatives from all levels of sophistication of land management around the world.”

Peter van Oosterom continued: “The new SWG will work on the Land Administration Domain Model (LADM) Implementation Standard in OGC, which will be included as part 6 of the existing ISO 19152 series of Standards. This sounds modest, but is actually a big step forward. The LADM Standards today are only Conceptual Models, which means that countries implementing them have to find their own solutions for developing their country file, technical encodings, code list values, processes/workflows, etc.

“An open LADM Implementation Standard will not only reduce implementation costs by providing free, proven technical encodings, but would also enable solution vendors to provide commercial off-the-shelf software that works across multiple countries/jurisdictions, rather than having to adapt it to each unique approach.”
Networking, social, and other sessions
In addition to these sessions, the 128th OGC Member Meeting will also see meetings of over 50 different working groups or committees covering almost the full breadth of geospatial applications and domains, as well as several social and networking events.

Registration remains open, as do sponsorship opportunities. Non-members are encouraged to attend. To see the full agenda, visit ogcmeet.org.
As well as the host of technical content and informative presentations, OGC Member Meetings also include networking events, such as the Wednesday night dinner.
The post Geo-BIM for the Built Environment appeared first on Open Geospatial Consortium.

9:32
The Cyclotron
sur Google Maps Mania

The West Midlands Cyclotron uses cycle counters installed on the roads in the West Midlands to provide a near real-time data visualization of the number of cyclists using individual roads in areas of Birmingham, Coventry and Wolverhampton (and many roads in between). The most striking aspect of the Cyclotron is the design of the LED themed data dashboard. This dashboard takes its cue from the

21 February 2024
12:30
GeoTools Team: GeoTools 29.5 released
sur Planet OSGeo

  GeoTools 29.5 releasedThe GeoTools team is pleased to announce the release of the latest maintenance version of GeoTools 29.5:geotools-29.5-bin.zipgeotools-29.5-doc.zipgeotools-29.5-userguide.zipgeotools-29.5-project.zipThis release is also available from the OSGeo Maven Repository and is made in conjunction with GeoServer 2.23.5 and GeoWebCache 1.23.4. We are

10:22
The World's First OpenStreetMap
sur Google Maps Mania

The only thing I love more than exploring historical vintage maps of the world is exploring annotated, interactive versions of ancient world maps. Now thanks to the Museo Galileo I can browse an annotated version of the world's greatest medieval map - the Fra Mauro World Map.The Annotated Fra Mauro World Map is an interactive zoomable version of the famous 1450 Venetian map of the world. The

20 February 2024
20:17
QGIS Blog: Save the date & call for contributions: QGIS user conference and contributor meeting in Bratislava
sur Planet OSGeo

We are happy to announce that QGIS User Conference will take place on 9-10 September 2024 in Bratislava, Slovakia.

The traditional Contributor Meeting will be held right after the conference on 11-13 September 2024 at the same venue.

Learn more about the user conference and the contributor meeting at the event’s web site: [https:]]

The call for papers for the user conference is now open – you can submit proposals for talks and workshops by 31 March 2024:
[https:]]

We have also started call for sponsors, with sponsorship opportunities at various levels. More details here:
[https:]]

User Conference

The QGIS User Conference is an annual event that brings together users and developers of QGIS. The conference provides an opportunity for attendees to learn about the latest developments in QGIS, share their experiences with others, and network with other QGIS users and
developers.

Contributor Meeting

QGIS Contributor Meetings are volunteer-driven events where contributors to the QGIS project from around the world get together in a common space – usually a university campus. During these events, contributors to the QGIS project take the opportunity to plan their work, hold face-to-face discussions and present new improvements to the QGIS project that they have been working on. Everybody attending the event donates their time to the project for the days of the event.
As a project that is built primarily through online collaboration, these meetings provide a crucial ingredient to the future development of the QGIS project. The event is planned largely as an ‘unconference’ with minimal structured programme planning.

For more details and to sign up, please visit the corresponding wiki page [https:]]

12:58
Enterprise Products: A Collaborative Journey with OGC
sur Open Geospatial Consortium (OGC)
In the ever-evolving realm of energy infrastructure, the success of an organization is often determined by its ability to adapt, innovate, and collaborate effectively. Enterprise Products Partners, L.P. has exemplified these qualities through their ongoing relationship with the Open Geospatial Consortium (OGC).

Under the leadership of Gary Hoover, Enterprise Products’ team of geospatial technology experts has helped develop an open, international geospatial Standard for the pipeline industry, PipelineML, and deployed disruptive open-source geospatial technology.

Doing so helped Enterprise Products optimize the management of their extensive 50,000-mile pipeline network, and supports the larger goal of safe and sustainable energy infrastructure within the oil and gas sector.
Pioneering the PipelineML Standard
Enterprise Products became a voting member of OGC in 2013. Shortly after, Data Architect John Tisdale rolled up his sleeves and got to work, learning OGC’s consensus-based Standards process and serving as a charter member and co-chair of the PipelineML Standards Working Group (SWG). In 2019, the PipelineML Conceptual and Encoding Model Standard was approved by the OGC Membership, making it an official OGC Standard.

The PipelineML Standard – collaboratively developed by Enterprise Products and contributors from across the US, Canada, Belgium, Norway, Netherlands, UK, Germany, Australia, Brazil, and Korea – defines concepts that support the interoperable interchange of data related to oil and gas pipeline systems. PipelineML addresses two critical business use cases specific to the pipeline industry: new construction surveys and pipeline rehabilitation.

The Standard defines individual pipeline components, provides support for lightweight data aggregation, and provides a mechanism for extensions focused on safety and sustainability through effective data management practices. By working with OGC’s Land and Infrastructure Domain Working Group, PipelineML was aligned with related Standards that ensure compatibility with future land management requirements.
Three use-cases addressed by the OGC PipelineML Standard. A Step Towards Modernization
June 26, 2023, marked a significant milestone in Enterprise Products’ technical history: in partnership with select technology vendors, the company implemented open-source technology to revamp their existing Asset Information Management (AIM) Program.

To move off the legacy PODS data model and a dependence on proprietary software, the Enterprise Products team spent years developing, prototyping, and refining the Pipeline Component Data Model (PCDM). Instead of utilizing an ageing linear referencing methodology, PCDM leverages modern geospatial technologies to gather GPS coordinates in the field that accurately mark the real-world location of pipeline components. This “Digital Twin” approach makes PCDM more adaptable to evolving business requirements.

Emerging from this initiative, the AIM Data Architecture Platform and Development Framework now provides data and services that serve as the lifeblood of the organisation.
The Pillars of Value-adding
Enterprise Products’s Asset Data Management group has played a vital role in elevating the company’s performance with contributions that have rippled across the organization to deliver tangible value in several areas:
Standards & Governance
To facilitate seamless information exchange across business units and external service providers, Enterprise Products has established stringent data standards and governance protocols that ensure consistent and accurate data for decision-making. By aligning their asset data with OGC Standards, Enterprise Products has established a universal language for geospatial data that simplifies communication and interoperability.
Data Integration
Incorporating integrated inline inspection data has been pivotal in maintaining the integrity of Enterprise Products’ extensive pipeline network. The AIM Data Architecture Platform functions as a nexus for data integration that enables a seamless flow of information across departments that promotes collaboration and efficiency.
Spatio-temporal Analytics
The integration of spatio-temporal analytics has introduced a new dimension to Enterprise Products’ pipeline management. Real-time geospatial insights have not only improved operational efficiency but have also fostered proactive problem solving. By incorporating database-native geoprocessing, Enterprise Products has streamlined analytical workflows and enhanced the speed and accuracy of decision-making.
Data Deliverability
Enterprise Products has democratized data access within the organization by creating a map-based interface that provides intuitive visualisations and reports that empower stakeholders to make informed decisions. This map-based interface supports over 1200 individual users across various departments, including Asset Integrity, Business Development, Field Operations, and Public Awareness.
Safety and Sustainability
Spanning the pipeline asset life-cycle from new construction to divestitures, the AIM Data Architecture supports several Safety and Sustainability programs that ensure safe, reliable operations. Programs such as Public Awareness, OneCall (aka 811 “Call Before You Dig”), Inline Inspections, Pipeline Rehabilitation, Regulatory Compliance, Integrity Assessments, and Field Operations all depend on highly available asset information.
Rather than linear referencing, Enterprise Products uses GPS coordinates to accurately mark the real-world location of pipeline components. Scaling for the Future
The volume, variety, and velocity of data required to manage and optimize large pipeline networks presents substantial challenges. However, Enterprise Products’ open architecture effortlessly manages the scale of their installation and provides ample room for growth. To put this into perspective, consider the following statistics:
- 50,000 Miles of Pipeline
- 2,500 Facilities
- 5.6 million Pipe Components
- 45 million rows of inline inspection data – 30 years’ worth
- 80 million Rows of geospatially referenced data, with 10x better lossless compression over the legacy proprietary system
Embracing Open
One of the most striking aspects of Enterprise Products’ journey is their embrace of Open Standards and Open Source technology. The AIM Data Architecture Platform represents a complete departure from proprietary systems. Key standards and technologies used by Enterprise Products include PipelineML, GeoServer, QGIS, PostgreSQL, PostGIS Spatial Extender, Python & other open libraries, and XML, GML, JSON, & GeoJSON encoded schemas.

This strategic shift not only reduced dependence on commercial vendors and licensing costs, but also established Enterprise Products as an industry pioneer that set a new standard for innovation and interoperability.
OGC Membership: A Driving Force
Enterprise Products’ journey is a compelling story of innovation and progress, with the OGC Community playing a pivotal role. Through collaborative efforts and a steadfast commitment to OGC’s consensus-based process, Enterprise Products led the development of the PipelineML Standard that has proven vital to optimizing the management of Enterprise Products’ extensive pipeline network.

Working with OGC has provided Enterprise Products with a significant competitive advantage, allowing them to leverage the collective knowledge and resources of the international geospatial community. Their journey underscores the transformative potential when industry leaders partner with organizations like OGC to drive positive change. As the world continues to seek sustainable and efficient energy infrastructure, Enterprise Products serves as a prime example of what is achievable when technology, data, and partnerships come together.

The post Enterprise Products: A Collaborative Journey with OGC appeared first on Open Geospatial Consortium.

9:32
The Chain Restaurants of America
sur Google Maps Mania

Map of McDonald's outlets in the USAThe Georgia Institute of Technology's Friendly Cities Lab has released a new interactive map which reveals which chain restaurants dominate which areas of the United States. The U.S. Chain and Independent Restaurants map shows the locations of over 700,000 restaurants across the country, organized by restaurant chain and by frequency. The map reveals that
19 February 2024
9:33
AI Your Home on Street View
sur Google Maps Mania

Have you ever wanted to radically alter the ambiance of your neighborhood? Perhaps you've always dreamed of turning your sleepy suburban road into a bustling inner-city street. Or maybe you've always wanted to dig up your nearby traffic heavy roads and replace them with green fields and trees. Well now you can - at least virtually.Panoramai is a new fun tool which allows you to grab Google Maps

1:00
Camptocamp: Coopterr, territorial cooperation platform based on Rennes Métropole's digital twin
sur Planet OSGeo

Pièce jointe: [télécharger]

Coopterr, Rennes Métropole's territorial cooperation platform, is now online. It offers a first service to citizens, enabling them to consult electromagnetic wave exposure measurements and identify radioelectric sites in the city of Rennes.
18 February 2024
1:00
GeoServer Team: GeoServer 2.23.5 Release
sur Planet OSGeo
GeoServer 2.23.5 release is now available with downloads (bin, war, windows), along with docs and extensions.

This is the last planned maintenance release of GeoServer 2.23.x, providing existing installations with minor updates and bug fixes. Sites using the 2.23.x series are encouraged to upgrade to GeoServer 2.24.x, or eventually wait next month, for the 2.25.0 release, and upgrade their installation, with the help of the upgrade guide.

GeoServer 2.23.5 is made in conjunction with GeoTools 29.5, and GeoWebCache 1.23.4.

Thanks to Andrea Aime (GeoSolutions) for making this release.
Release notes
New Feature:
- GEOS-11225 AuthKey synchronize the user/group automatically
- GEOS-11279 metadata: allow same field on multiple tabs
Improvement:
- GEOS-11213 Improve REST external upload method unzipping
- GEOS-11246 Schemaless plugin performance for WFS
- GEOS-11260 JNDI tutorial uses outdated syntax
- GEOS-11276 Use style_body to define CSS style for a layer
- GEOS-11288 Improve input validation in ClasspathPublisher
Bug:
- GEOS-11174 GWC rest api returns erroneous truncated response when gzip http encoding is enabled
- GEOS-11205 Layer page: style image fails if it is in isolated workspace
- GEOS-11250 WFS GeoJSON encoder fails with an exception if an infinity number is used in the geometry
- GEOS-11255 Multiple inserts in WPS with different idGen strategies does not work
- GEOS-11256 Cannot retrieve LegendGraphic from a PostGIS datastore with ‘hideEmptyRules’ and ‘Support on the fly geometry simplification’ enabled
- GEOS-11278 metadata: only selected tab is submitted
- GEOS-11285 GWC REST Content-Encoding gzip returns broken response
- GEOS-11291 GeoFence: Cleanup stale log4j references
For the complete list see 2.23.5 release notes.
Community Updates
Community module development:
- GEOS-10933 keycloak logout NPE
- GEOS-11290 With Oauth enabled, anon users get random auth requests
Community modules are shared as source code to encourage collaboration. If a topic being explored is of interest to you, please contact the module developer to offer assistance.
About GeoServer 2.23 Series
Additional information on GeoServer 2.23 series:
Release notes: ( 2.23.5 | 2.23.4 | 2.23.3 | 2.23.2 | 2.23.1 | 2.23.0 | 2.23-RC1 )

17 February 2024
9:19
The Right-Wing Terrorism Map
sur Google Maps Mania

The RTV Map Tool is an interactive map showing incidents of right-wing terrorism and violence in Western Europe since 1990. It documents and shows the locations of 1,214 violent right-wing attacks in Europe. This includes acts of violence which led to 32 fatalities.The map was created by the Center for Research on Extremism, at Oslo University, which studies right-wing extremism, hate crime and
16 February 2024
9:43
The Best Price Comparison Maps
sur Google Maps Mania

The Aldi Price Map The Aldi Price Map shows the store price ticket of a range of products in US outlets of the popular budget supermarket (apparently the price data from European Aldi stores is not so readily accessible). The German supermarket chain Aldi is known for its low prices. The company now has over 2,000 stores in the United States, and in a recent poll was ranked the most

15 February 2024
20:09
QGIS Blog: QGIS Grants #9: Call for Grant Proposals 2024
sur Planet OSGeo
Dear QGIS Community,

We are very pleased to announce that this year’s round of grants is now available. The call is open to anybody who wants to make a contribution to QGIS funded by our grant fund, subject to the call conditions outlined in the application form.

The deadline for this round is in four weeks, on 14 March 2024.

There are no new procedures in 2024. Please note the following guidelines established in previous years:
- The proposal must be submitted as a ‘QEP’ (QGIS Enhancement Proposal) issue in the repo: [https:]] (tagged as Grant-2024). Following this approach will allow people to ask questions and provide public feedback on individual proposals.
- Proposals must clearly define the expected final result so that we can properly assess if the goal of the proposal has been reached.
- The project budgets should account for PR reviewing expenses to ensure timely handling of the project-related PRs and avoid delays caused by relying on reviewer volunteer time.
- In the week after the QEP discussion period, the proposal authors are expected to write a short summary of the discussion that is suitable for use as a basis on which voting members make their decisions.
The PSC of QGIS.ORG will examine the proposals and has veto power in case a proposal does not follow guidelines or is not in line with project priorities.

For more details, please read the introduction provided in the application form.

We look forward to seeing all your great ideas for improving QGIS!

10:43
Alien Arrivals Nosedive in 2023!
sur Google Maps Mania

Where have all the interstellar tourists gone? That's the question gripping the world after a bombshell report revealed a staggering 19% drop in alien visitation in 2023! Is this a sign of a permanent shift in galactic travel? Or can the Earth win back alien vacationers?According to the National UFO Reporting Center sightings of little green tourists were down 19% in 2023 compared to 2022.

1:00
EOX' blog: Open Science Catalog
sur Planet OSGeo

Just like the European Space Agency (ESA), we advocate for and actively support Open Science, as we believe in the significance of collaborative efforts in advancing scientific knowledge and addressing global challenges. We acknowledge the transformative power of Open Science in driving interdiscipl ...

14 February 2024
9:34
The Sad State of Local News 2023
sur Google Maps Mania

Northwestern University's The State of Local News Outlook is an interactive map which visualizes the number of surviving local newspapers in every county in the United States. On this local news map individual counties are clored to show whether the county has 0, 1 or 2 or more news outlets. The data shown on the map can also be filtered to show the number of local number of newspapers,
13 February 2024
8:56
OpenStreetMap Edits in Real Time
sur Google Maps Mania

OpenStreetMap (OSM) is a free, editable map of the whole world, built and maintained by a community of volunteers. It is often described as the Wikipedia of maps, to which anyone can contribute and update information. Very importantly all of the map data contributed to OpenStreetMap is open data, which anyone and everyone is free to use.In a way maps have always been produced through

4:19
XYCarto: Projection Grid
sur Planet OSGeo
There are times when I need a regular grid for an entire projection extent. Meaning, for the extent of an entire projection, I need to create a regular grid of uniform tiles across the projection. In past projects, these grids have been very helpful for data alignment and clipping data into uniform shapes and sizes. This has proved especially helpful in Machine Learning pipelines where I need to ensure pixel to pixel alignments between rasters in a specified location.

Gridding, tiling, and indexing type work has been around forever in geospatial, so there is not much to say about the method. Basically, you take an extent and cut it up into a grid. In this case, the extent is for an entire projection.

I built a repository on Github and a quick method to do this via one command.

make build-grid epsg="EPSG:2193" width=1000 height=1000

For this method, the width and height are the desired grid cell size. The units are the units for the projection. EPSG:2193 (NZTM) is in metre units, so running the command above will make a grid of the NZTM projection populated with 1000m by 1000m cells.

The GitHub repository can be run using the Make/Docker method or users can access the python script directly using:

python3 create-grid.py EPSG:2193 1000 1000

In order to do so, you will need to have installed:
- GDAL
- GeoPandas
- PyProj
- Shapely
Happy mapping!
3:29
GeoSolutions: GeoNode 4.2 is out + Free GeoNode Webinar
sur Planet OSGeo

Pièce jointe: [télécharger]

You must be logged into the site to view this content.

12 February 2024
9:24
The Classic Map Arcade
sur Google Maps Mania

Mapbox Tetris Tetris is an iconic puzzle game that has captivated players for decades. Originally released in 1985 by Alexey Pajitnov, the game challenges you to fit differently shaped blocks, called tetriminos, into a rectangular playing field. By rotating and maneuvering these falling pieces, you aim to complete horizontal lines, which then disappear and earn you points.While Tetris has had
10 February 2024
11:33
The Most Controversial Interactive Map
sur Google Maps Mania

One of the earliest popular uses of the Google Maps API was Gawker Stalker. The now defunct Gawker Stalker interactive map tracked the movements of famous celebrities thanks to the detailed stalking carried out by Gawker and their readers. Now similar concerns are being raised regarding potential privacy infringements related to Jack Sweeney's TheAirTraffic, particularly involving the
09 February 2024
11:22
Mappy Races
sur Google Maps Mania

Every year since the 18th Century the Epsom Derby has attracted thousands of spectators. Like many Londoners I have often taken a trip to Surrey in late May or early June to attend the Derby horse race. These horse racing trips may be what inspired me to create my horse race simulator Mappy Races. Mappy Races is a very simple horse race simulator which uses Leafletjs to animate two colored
08 February 2024
10:12
Where to Watch April's Solar Eclipse
sur Google Maps Mania

On April 8, 2024 people across large parts of the USA will be able to see a total solar eclipse. If it isn't cloudy.In 1999 I traveled to France to experience a total solar eclipse. Unfortunately the experience was ruined slightly by overcast skies. What made it even more galling was to discover that a friend of mine had traveled independently from me and had a cloudless view of the eclipse

1:00
PostGIS Development: PostGIS Patch Releases
sur Planet OSGeo

The PostGIS development team is pleased to provide bug fix releases for 3.4.2, 3.3.6, 3.2.7, 3.1.11, 3.0.11, and 2.5.11. Please refer to the links above for more information about the issues resolved by these releases.
07 February 2024
13:55
Oslandia: Software quality in QGIS
sur Planet OSGeo
According to the definition of software quality given by french Wikipedia

An overall assessment of quality takes into account external factors, directly observable by the user, as well as internal factors, observable by engineers during code reviews or maintenance work.

I have chosen in this article to only talk about the latter. The quality of software and more precisely QGIS is therefore not limited to what is described here. There is still much to say about:
- Taking user feedback into account,
- the documentation writing process,
- translation management,
- interoperability through the implementation of standards,
- the extensibility using API,
- the reversibility and resilience of the open source model…
These are subjects that we care a lot and deserve their own article.

I will focus here on the following issue: QGIS is free software and allows anyone with the necessary skills to modify the software. But how can we ensure that the multiple proposals for modifications to the software contribute to its improvement and do not harm its future maintenance?
Self-discipline
All developers contributing to QGIS code doesn’t belong to the same organization. They don’t all live in the same country, don’t necessarily have the same culture and don’t necessarily share the same interests or ambitions for the software. However, they share the awareness of modifying a common good and the desire to take care of it.

This awareness transcends professional awareness, the developer not only has a responsibility towards his employer, but also towards the entire community of users and contributors to the software.

This self-discipline is the foundation of the quality of the contributions of software like QGIS.

However, to err is human and it is essential to carry out checks for each modification proposal.
Automatic checks
With each modification proposal (called Pull Request or Merge Request), the QGIS GitHub platform automatically launches a set of automatic checks.

Example of proposed modification

Result of automatic checks on a modification proposal

The first of these checks is to build QGIS on the different systems on which it is distributed (Linux, Windows, MacOS) by integrating the proposed modification. It is inconceivable to integrate a modification that would prevent the application from being built on one of these systems.
The tests
The first problem posed by a proposed modification is the following “How can we be sure that what is going to be introduced does not break what already exists?”

To validate this assertion, we rely on automatic tests. This is a set of micro-programs called tests, which only purpose is to validate that part of the application behaves as expected. For example, there is a test which validates that when the user adds an entry in a data layer, then this entry is then present in the data layer. If a modification were to break this behavior, then the test would fail and the proposal would be rejected (or more likely corrected).

This makes it possible in particular to avoid regressions (they are very often called non-regression tests) and also to qualify the expected behavior.

There are approximately 1.3 Million lines of code for the QGIS application and 420K lines of test code, a ratio of 1 to 3. The presence of tests is mandatory for adding functionality, therefore the quantity of test code increases with the quantity of application code.

In blue the number of lines of code in QGIS, in red the number of lines of tests

There are currently over 900 groups of automatic tests in QGIS, most of which run in less than 2 seconds, for a total execution time of around 30 minutes.

We also see that certain parts of the QGIS code – the most recent – are better covered by the tests than other older ones. Developers are gradually working to improve this situation to reduce technical debt.
Code checks
Analogous to using a spell checker when writing a document, we carry out a set of quality checks on the source code. We check, for example, that the proposed modification does not contain misspelled words or “banned” words, that the API documentation has been correctly written or that the modified code respects certain formal rules of the programming language.

We recently had the opportunity to add a check based on the clang-tidy tool. The latter relies on the Clang compiler. It is capable of detecting programming errors by carrying out a static analysis of the code.

Clang-tidy is, for example, capable of detecting “narrowing conversions”.

Example of detecting “narrowing conversions”

In the example above, Clang-tidy detects that there has been a “narrowing conversion” and that the value of the port used in the network proxy configuration “may” be corrupted. In this case, this problem was reported on the QGIS issues platform and had to be corrected.

At that time, clang-tidy was not in place. Its use would have made it possible to avoid this anomaly and all the steps which led to its correction (exhaustive description of the issue, multiple exchanges to be able to reproduce it, investigation, correction, review of the modification), meaning a significant amount of human time which could thus have been avoided.
Peer review
A proposed modification that would validate all of the automatic checks described above would not necessarily be integrated into the QGIS code automatically. In fact, its code may be poorly designed or the modification poorly thought out. The relevance of the functionality may be doubtful, or duplicated with another. The integration of the modification would therefore potentially cause a burden for the people in charge of the corrective or evolutionary maintenance of the software.

It is therefore essential to include a human review in the process of accepting a modification.

This is more of a rereading of the substance of the proposal than of the form. For the latter, we favor the automatic checks described above in order to simplify the review process.

Therefore, human proofreading takes time, and this effort is growing with the quantity of modifications proposed in the QGIS code. The question of its funding arises, and discussions are in progress. The QGIS.org association notably dedicates a significant part of its budget to fund code reviews.

More than 100 modification proposals were reviewed and integrated during the month of December 2023. More than 30 different people contributed. More than 2000 files have been modified.

Therefore the wait for a proofreading can sometimes be long. It is also often the moment when disagreements are expressed. It is therefore a phase which can prove frustrating for contributors, but it is an important and rich moment in the community life of a free project.

To be continued !

As a core QGIS developer, and as a pure player OpenSource company, we believe it is fundamental to be involved in each step of the contribution process.

We are investing in the review process, improving automatic checks, and in the QGIS quality process in general. And we will continue to invest in these topics in order to help make QGIS a long-lasting and stable software.

If you would like to contribute or simply learn more about QGIS, do not hesitate to contact us at infos+qgis@oslandia.com and consult our QGIS support proposal.

10:04
A Year of CO2
sur Google Maps Mania

The Washington Post has visualized how carbon dioxide builds up in the Earth's atmosphere over the course of one year. Using an interactive globe the Post has animated 12 months worth of atmospheric CO2 around the world.The interactive globe in Watch the Earth breathe for one year uses data from NASA satellites and ground measuring stations to show how CO2 accumulated around the world over the

06 February 2024
17:00
Paul Ramsey: Building the PgConf.Dev Programme
sur Planet OSGeo
Update: The programme is now public.

The programme for pgconf.dev in Vancouver (May 28-31) has been selected, the speakers have been notified, and the whole thing should be posted on the web site relatively soon.

I have been on programme committees a number of times, but for regional and international FOSS4G events, never for a PostgreSQL event, and the parameters were notably different.

The parameter that was most important for selecting a programme this year was the over 180 submissions, versus the 33 available speaking slots. For FOSS4G conferences, it has been normal to have between two- and three-times as many submissions as slots. To have almost six-times as many made the process very difficult indeed.

Why only 33 speaking slots? Well, that’s a result of two things:
- Assuming no more than modest growth over the last iteration of PgCon, puts attendence at around 200, which is the size of our plenary room. 200 attendees implies no more than 3 tracks of content.
- Historically, PostgreSQL events use talks of about 50 minutes in length, within a one hour slot. Over three tracks and two days, that gives us around 33 talks (with slight variations depending on how much time is in plenary, keynotes or lightning talks).
The content of those 33 talks falls out from being the successor to PgCon. PgCon has historically been the event attended by all major contributors. There is an invitation-only contributors round-table on the pre-event day, specifically for the valuable face-to-face synch-up.

Given only 33 slots, and a unique audience that contains so many contributors, the question of what pgconf.dev should “be” ends up focussed around making the best use of that audience. pgconf.dev should be a place where users, developers, and community organizers come together to focus on Postgres development and community growth.

That’s why in addition to talks about future development directions there are talks about PostgreSQL coding concepts, and patch review, and extensions. High throughput memory algorithms are good, but so is the best way to write a technical blog entry.

Getting from 180+ submissions to 33 selections (plus some stand-by talks in case of cancellations) was a process that consumed three calls of over 2 hours each and several hours of reading every submitted abstract.

The process was shepherded by the inimitable Jonathan Katz.
- A first phase of just coding talks as either “acceptable” or “not relevant”. Any talks that all the committee members agreed was “not relevant” were dropped from contention.
- A second phase where each member picked 40 talks from the remaining set into a kind of “personal program”. The talks with just one program member selecting them were then reviewed one at a time, and that member would make the case for them being retained, or let them drop.
- A winnow looking for duplicate topic talks and selecting the strongest, or encouraging speakers to collaborate.
- A third “personal program” phase, but this time narrowing the list to 33 talks each.
- A winnow of the most highly ranked talks, to make sure they really fit the goal of the programme and weren’t just a topic we all happened to find “cool”.
- A talk by talk review of all the remaining talks, ensuring we were comfortable with all choices, and with the aggregate make up of the programme.
The programme committee was great to work with, willing to speak up about their opinions, disagree amicably, and come to a consensus.

Since we had to leave 150 talks behind, there’s no doubt lots of speakers who are sad they weren’t selected, and there’s lots of talks that we would have taken if we had more slots.

If you read all the way to here, you must be serious about coming, so you need to register and book your hotel right away. Spaces are, really, no kidding, very limited.
12:03
Oslandia: (Fr) Rencontres QGIS-fr – Grenoble 27 & 28 mars 2024
sur Planet OSGeo

Sorry, this entry is only available in French.

10:04
Mapping the Spread of War in the Middle East
sur Google Maps Mania

The Hamas attacks in Israel on 7 October 2023 have led to increasing violence across much of the Middle East. In response to the Hamas attacks Israel launched a devastating and destructive campaign against Gaza. In Yemen the Houthi responded to Israel's attacks on Gaza by targeting ships in the Red Sea. The US & UK replied by targeting Houthi locations in Yemen. Israel and the US have

1:00
SourcePole: Designing QGIS Cloud QWC2 with CSS
sur Planet OSGeo

In an earlier post, I showed how it is possible to permanently position a legend in the QGIS Cloud map as part of a QGIS Cloud Pro subscription. To achieve this, the appearance of the map view was changed using CSS. In this post, I will describe exactly what this is and how it works. The appearance of the QGIS Cloud Web Client is controlled via CSS. CSS stands for Cascading Style Sheets.
05 February 2024
9:00
Lutra consulting: New point clouds and mesh features in QGIS 3.36
sur Planet OSGeo
QGIS 3.36 is round the corner and as usual, there will be several new exciting features with the new release. Below is the list of features our team has added to the new release. This was made possible by generous funding from clients.
Render point clouds as a surface in 2D map views
Point clouds are rendered as individual points by default. Depending on the zoom level and density of the points, you might not be able to get a full picture of the map.

Rendering points as surface enables you to have a better understanding of the data before trying to do any analysis or processing. This has been possible in 3D map views for a couple of QGIS releases, now we have added the functionality also in 2D map views.

The feature generates a surface using triangulation on-the-fly from the points using the same symbology. Below you can see the difference between a point cloud rendered as individual points and rendered as a surface:

Point clouds as individual points vs. as a TIN surface
The good news is that rendering as a surface also works well with global map shading, allowing users to get a nice hillshade:

Point clouds as surface with hillshade
To enable this feature, you need to check the option for Render as a Surface (Triangulate) under the Layer Styling panel.

Settings to display point clouds as surface
Pro-tip: if the on-the-fly rendering as a surface takes too long to render, try increasing the Maximum error: for example 0.6 mm instead of the default 0.3 mm.
Flexible styling of classes
Previously, point cloud data visualisation in QGIS was limited to rendering all points with a uniform size and opacity. This made it difficult to differentiate between different point classes and highlight specific features of interest. To address this issue, we have introduced a new feature that allows users to customise the point size and opacity for each point cloud data class. This provides a flexible way for visualising point cloud data, allowing users to highlight specific point classes, e.g. by increasing the point size.

Assigning size and opacity to each point cloud class
Point clouds with different sizes and opacity levels Set 3D map view extent in 2D map
Effectively navigating and visualising large-scale 3D datasets can be challenging on PCs with limited resources. To address this issue, we introduced a new feature that allows users to interactively limit the 3D scene, enabling them to focus on specific areas of interest. This new feature, conveniently accessible from the toolbar, eliminates the need for tedious manual entry of coordinates for bounding boxes. Instead, users can simply drag and draw a box around the desired area, instantly restricting the 3D scene to that specific extent. This interactive approach significantly enhances the user experience and streamlines the process of exploring and analysing 3D data:

Interactive selection of 3D map scene from 2D map Python API for 3D views
Creating and viewing 3D maps in QGIS with the correct camera location and angle, scene tilt, light, and other parameters can be a time-consuming and error-prone process. This is because it requires users to manually adjust these settings, often through trial and error. However, with the introduction of the new 3D map view API in QGIS, Python plugins can now automate this process, making it much easier, consistent and more efficient to create high-quality 3D maps that are visually appealing and informative.
```
# List all open 3D map canvases
iface.mapCanvases3D()
# [<qgis._3d.Qgs3DMapCanvas object at 0x7f23491b5e10>]
canvas = iface.mapCanvases3D()[0]
```
Now let’s try something more complicated:
```
# Let's change some settings!
ms = canvas.mapSettings()
ms.setEyeDomeLightingEnabled(True)
ms.setBackgroundColor(QColor('beige'))
ms.setTerrainMapTheme('dtm')
ms.setFieldOfView(110)

# Move the camera to look at specific map coordinates in layer's CRS
cam = canvas.cameraController()
mapPoint = QgsVector3D(-498175.92, -1205400.58, 210)
worldPoint = ms.mapToWorldCoordinates(mapPoint)
cam.setLookingAtPoint(worldPoint, 60, 45, 100)

# Create four new 3D map views
c1 = iface.createNewMapCanvas3D('South View')
c2 = iface.createNewMapCanvas3D('West View')
c3 = iface.createNewMapCanvas3D('North View')
c4 = iface.createNewMapCanvas3D('East View')

# Apply settings to all open 3D map views
for canvas in iface.mapCanvases3D():
	canvas.mapSettings().setEyeDomeLightingEnabled(True)

# Define a camera pose to update the views' cameras
pose = QgsCameraPose()
pose.setCenterPoint(QgsVector3D(0, 210, 0))  # This is in 3D world coordinates
pose.setDistanceFromCenterPoint(100)
pose.setPitchAngle(75)  # Tilt the camera by 75 degrees
pose.setHeadingAngle(0)  # Looking towards North
c1.cameraController().setCameraPose(pose)
pose.setHeadingAngle(90)  # Towards East
c2.cameraController().setCameraPose(pose)
pose.setHeadingAngle(180)  # Towards South
c3.cameraController().setCameraPose(pose)
pose.setHeadingAngle(270)  # Towards West
c4.cameraController().setCameraPose(pose)

# We can set the 3D map views 2D extent to always match the main 2D canvas one
# Our 3D views get updated while zooming/panning the main 2D canvas
canvas = iface.mapCanvas()
canvas.extentsChanged.connect(lambda :c1.mapSettings().setExtent(canvas.extent()))
canvas.extentsChanged.connect(lambda :c2.mapSettings().setExtent(canvas.extent()))
canvas.extentsChanged.connect(lambda :c3.mapSettings().setExtent(canvas.extent()))
canvas.extentsChanged.connect(lambda :c4.mapSettings().setExtent(canvas.extent()))
```
Changing 3D view settings through Python More point clouds attributes
LAS/LAZ/COPC point clouds have a classificationFlags attribute that stores four types of information (Synthetic, Keypoint, Withheld, and Overlap) in a single value. This saves space, but it makes it difficult to use the information for styling or filtering, as you need to write complex expressions.

To make it easier to use, we are following the approach introduced in PDAL 2.6: the classificationFlags attribute gets replaced with four separate attributes: Synthetic, Keypoint, Withheld, and Overlap. This will make it easier to include these attributes in styling and filtering expressions.
Performance enhancement for rendering
To improve the performance of point cloud rendering in QGIS, we introduced a new caching system to minimise the need for repeated decompression of LAS node data while panning or zooming. This caching mechanism efficiently stores decompressed points for each unique combination of layer URI, node, requested attributes, filter extent, and filter expression. This enables rapid rendering of previously cached nodes, significantly enhancing the overall rendering performance in 2D and 3D maps.

Performance can vary depending on actual data, but on a local sample COPC file, it renders 7 times faster with this change.
Labels for mesh layer
Viewing mesh data has been possible through styling, plotting or using the Identify tool. But now you can also create labels on mesh surfaces or vertices similar to vector layers.

To display labels for your mesh data, simply open the styling panel and enable labels for:
- Labels on Vertices
- Labels on Surfaces
Label settings for mesh layers
Below is an example of mesh Z values at vertices (yellow) and mesh areas at cell centre (purple):

Example of labels on a mesh layer Want more changes in QGIS?
Do you want to see more improvements and new features in QGIS? Do not hesitate to contact us to discuss your requiremnets.

2:13
The 12 Best Daily Map Games
sur Google Maps Mania

Ever since Josh Wardle released his very popular daily Wordle game in 2022 there has been a plethora of daily geography challenges which have been unleashed upon us, the geographically challenged public. The latest of these is Unzoomed.Every day Unzoomed presents you with the satellite image of a random city, which could be located anywhere in the world. All you have to do is name the city. You

0:09
Sean Gillies: Preseason running
sur Planet OSGeo

My 32 week running season starts on February 19 and ends on September 29, at Bear Lake if everything goes right. My preseason running has been light on running because of various maladies. I strained my back at the end of December and just as I recovered from that I experienced some knee inflammation that was badly aggravated by running. For the past three weeks I've switched to weight training and chugging on the elliptical machines at a nearby gym. I'm doing 5x5s of squats, deadlifts, etc three times a week and 4-5 x 3 minute hard elliptical intervals once or twice a week. In between I've been walking briskly on the bike path or hiking on trails. I'd hoped to be actually running 6 hours a week by now, but am adjusting and getting some good workouts in. By February 19, I think I'll be able to take my interval workouts outside and switch from hiking to running without beating up on my knee.
04 February 2024
15:42
Markus Neteler: Celebrating 18 Years of the Open Source Geospatial Foundation (OSGeo)
sur Planet OSGeo

The Open Source Geospatial Foundation (OSGeo) today celebrates its 18th anniversary, underscoring its pivotal role in the development of open source geospatial software and its impact on the world. Founded in 2006, OSGeo’s mission is to support and promote the collaborative development of open geospatial technologies and data. Over the years, it has become a cornerstone of the open geospatial community, fostering innovation, education and adoption of open source geospatial software worldwide.

The post Celebrating 18 Years of the Open Source Geospatial Foundation (OSGeo) appeared first on Markus Neteler Consulting.
0:16
Adam Steer: Route mapping using Strava, OpenStreetMap and QQIS
sur Planet OSGeo

Tools used: QGIS 3.34.3 Prizren; Inkscape 1.2, a web browser Most of this is reasonably standard ‘get data, make maps’ – you can flick straight to cartographic magic for the un-standard parts if you want! The product Brief and design choices The brief for this map was to visualise a bicycle ride route – and… Read More »Route mapping using Strava, OpenStreetMap and QQIS
03 February 2024
10:54
Free and Open Source GIS Ramblings: Finding geospatial accounts on Mastodon
sur Planet OSGeo

Besides following hashtags, such as #GISChat, #QGIS, #OpenStreetMap, #FOSS4G, and #OSGeo, curating good lists is probably the best way to stay up to date with geospatial developments.

To get you started (or to potentially enrich your existing lists), I thought I’d share my Geospatial and SpatialDataScience lists with you. And the best thing: you don’t need to go through all the >150 entries manually! Instead, go to your Mastodon account settings and under “Import and export” you’ll find a tool to import and merge my list.csv with your lists:

And if you are not following the geospatial hashtags yet, you can search or click on the hashtags you’re interested in and start following to get all tagged posts into your timeline:

10:09
Using AI to Detect Oil Spills
sur Google Maps Mania

SkyTruth's Cerulean is a global monitoring system which uses AI to detect oil slick pollution in satellite imagery. It also identifies nearby vessels which might have been responsible for the pollution. The Cerulean interactive map identifies the locations of possible oil slicks that might go unnoticed by traditional methods, hopefully leading to faster response and cleanup efforts.Cerulean
02 February 2024
10:13
Car Commutes are Getting Longer
sur Google Maps Mania

During the height of the Covid epidemic a number of visualizations were created to show the drop in road traffic and public transit use. As people were forced to quarantine and work from home our roads and transit networks saw an observable fall in traffic.For example Buzzfeed teamed up with Mapbox to create a series of interactive mapped visualizations showing the reduction in road traffic in

01 February 2024
23:07
Markus Neteler: Using leafmap with actinia in a Jupyter notebook
sur Planet OSGeo

This blog post gives an overview of how to easily perform a geodata analysis of an online available dataset (here: a GeoTIFF file) with actinia and display the result in Leafmap browser-based.

The post Using leafmap with actinia in a Jupyter notebook appeared first on Markus Neteler Consulting.
18:45
gvSIG Team: Video on the Spatial Data Infrastructure of Albacete
sur Planet OSGeo

We share an institutional video about the Spatial Data Infrastructure of Albacete, developed with the gvSIG Suite, and that is having a significant impact both at the management level and in public service. A video that, in just over a minute, allows you to understand the scope that projects of this kind have.
18:41
gvSIG Team: Vídeo sobre la Infraestructura de Datos Espaciales de Albacete
sur Planet OSGeo

Compartimos un vídeo institucional sobre la la Infraestructura de Datos Espaciales de Albacete, desarrollada con la Suite gvSIG y que está teniendo un gran impacto tanto a nivel de gestión como a nivel de servicio público.

Un vídeo que en poco más de un minuto permite entender el alcance que tienen este tipo de proyectos:

15:34
Enhancing capabilities by adopting Standards for emerging technologies
sur Open Geospatial Consortium (OGC)

The pace of technological change is increasing as new products are made available, with ground-breaking innovation often resulting in disruptive change. Coupled with this technological change is the explosion of data from new sources relevant to the geospatial domain, including imagery, sensor feeds, and real-time tracking data. Organisations in the public, private, and third sectors must remain agile and resilient to thrive in this emerging landscape.

Adoption of new technological innovations into large, controlled IT enterprises can be challenging, because of associated costs, integration challenges, and processes. The Open Geospatial Consortium (OGC) is a standards body that, for the last 30 years, has been working to innovate and create community driven Standards in the geospatial domain. These Standards are designed to ensure data and services are Findable, Accessible, Interoperable, and Reusable (FAIR), whilst ensuring that the developed Standards are suited to the target domain and straightforward to adopt. FAIR principles can also be applied to the integration of new technologies into large enterprises, to ensure that interaction patterns with new technologies are known, and the components offering the technology are interchangeable.
Standardising AI/ML Training Data
An OGC Standard supporting a decidedly recent phenomenon is the OGC Training Data Markup Language for Artificial Intelligence. Artificial Intelligence (AI), Machine Learning (ML), and associated applications have been the subject of research since the 1990s and earlier. However, it is only recently that the necessary computational power and, importantly, the data to train AI models, have been available. Training data is the lifeblood of AI. As the old axiom goes, “garbage in, garbage out” and AI models are no different. Additionally, AI models and their inner workings can be opaque with the ‘black box’ effect on the inputs and outputs. Therefore, standardising the management of training data is important for scientific endeavours, not least for repeatability but also the FAIR principles.

In addition to utilising AI to do typical geospatial and imagery work, we are also seeing AI used to create simulated data for training – or even nefarious purposes. Recording information about the input data to ML models in a standardised manner assists with the management and authenticity of outputs. By way of example, the image below is a completely fictional landscape created using some training data of a UK city and a Generational Adversarial Network (GAN). Standardising the training dataset metadata enables others to create their own simulated data with the same feel, whilst understanding the input parameters and likely outcomes.
Quantum Computing
While AI/ML is one current technology trend that offers a great example of how the technological landscape can change overnight, like with the 2022 release of ChatGPT, another disruptive technology set that has been on the horizon for the past few decades is Quantum Computing.

Although not likely to be a complete replacement for classical computing, quantum computing potentially offers an exponential speed-up to solving problems that are difficult for classical computing to manage. This is not necessarily because quantum computers are faster in the super computing sense, it is that their approach to solving problems is fundamentally different to classical computing. Classical computing operates by manipulating bits that are either in a 1 or a 0 position, chaining enough of these operations together enables computing machines to do useful work. Quantum computers are different in that their fundamental building block is the qubit that can exist in a superposition of both 1 and 0. There are also different types of quantum computing, circuit-based quantum computers are those that can do the headline-grabbing factoring of large numbers and therefore will be able to crack RSA encryption (which is built on the principle that factoring large numbers is hard). The second type of quantum computing is quantum annealing or adiabatic quantum computing that lends itself to solving optimisation problems.

The geospatial domain is full of optimisation problems, a typical example is the Travelling Salesperson Problem where a salesperson is required to visit several geographically dispersed locations with the constraint that they must visit each location once and only once while completing the route with the lowest cost (shortest distance, fastest drivetime). Another optimisation style problem is the Structural Imbalance Problem where an algorithm attempts to split a social network (often with a geospatial element) into friendly groups where, in a balanced graph, all relationships within the groups are friendly, while all the relationships between the groups are hostile. In the real world it is not usually possible to get a perfect result. This highlights relationships that do not fit the model (strained), which can be a predictor of conflict.

Practical quantum computing is now possible, there are several providers such as Rigetti, D-Wave, and the likes of Amazon, Google, and Microsoft who are starting to make their quantum computing resources available via the cloud. Although none of the quantum computers are sizable enough to provide a quantum advantage in the optimisation space, new quantum computers are planned that will be able to. As a stop gap, there are classical/quantum hybrid approaches that offer advantages of quantum computing but can solve practical problems.

As with many emerging technologies, the interaction patterns for these new quantum computers and hybrid solvers have not yet been standardised and are bespoke down to the hardware. The D-Wave system with the Ocean SDK for quantum computing has patterns and calls that cover many of the optimisation style calls that one could use a quantum solver for. Perhaps the next move for the OGC is to understand the impact of quantum computing through a Domain Working Group to support geospatial optimisation-style problems through a group dedicated to quantum computing and the opportunities it affords.
Where next?
Keeping a close eye on emerging technologies and getting ahead of the curve, in terms of adoption, enables Standards to be created that assist with integration and can provide meaningful change to organisations. The technology is the exciting piece and can offer untold opportunities, and the quicker and smoother these technologies can be adopted into the organisations that make use of them, the better the return for businesses, users, and citizens. Good, domain-driven Standards-definition is key to a FAIRer technology landscape.

A quantum computing ad-hoc session will be held at 15:30 CET on March 27 , 2024, as part of the 128th OGC Member Meeting in Delft, Netherlands, to discuss the possibility of Standardisation in the Quantum Computing domain.
The overall theme of the meeting is “Geo-BIM for the Built Environment” and will additionally include a Geo-BIM Summit, a Land Admin Special Session, an Observational Data Special Session, a Built Environment Joint Session, a meeting of the Europe Forum, as well as the usual SWG & DWG meetings and social & networking events. Learn more and register here.

Sam Meek is the Chief Technology Officer at Helyx Secure Information Systems Ltd.

The post Enhancing capabilities by adopting Standards for emerging technologies appeared first on Open Geospatial Consortium.

14:25
Mapping Gaza's Destroyed Buildings
sur Google Maps Mania

The Guardian has used satellite imagery and open-source evidence to map the mass destruction of buildings and land in Gaza. A story-map in How war destroyed Gaza’s neighbourhoods guides you through satellite imagery of three neighborhoods in Gaza (Beit Hanoun, al-Zahra and Khan Younis) documenting the destruction of civilian infrastructure by Israel. The destroyed buildings in the
9:31
Mapping Oil and Gas Emissions
sur Google Maps Mania

The Oil Climate Index plus Gas (OCI?) is an open-source tool that estimates and compares the life-cycle greenhouse gas (GHG) emissions of individual oil and gas resources around the world. In estimating the total emissions of individual oil and gas assets OCI? calculates emissions across the entire life cycle of oil and gas, from production and processing to transportation and end-use. The

1:00
GeoServer Team: A Comprehensive Guide to Publishing a Shapefile in GeoServer
sur Planet OSGeo
GeoSpatial Techno is a startup focused on geospatial information that is providing e-learning courses to enhance the knowledge of geospatial information users, students, and other startups. The main approach of this startup is providing quality, valid specialized training in the field of geospatial information.

( YouTube | LinkedIn | Facebook | Reddit | X )
A Comprehensive Guide to publishing a Shapefile in GeoServer
In this session, we want to talk about “How to Publish Shapefile in GeoServer” comprehensively. If you want to access the complete tutorial, simply click on the link

Introduction
The Data section contains configuration options for all the different data-related settings that GeoServer uses to access and publish geospatial information. It also describes how to load, manage, and publish data in the GeoServer web interface. Each section contains the specific pages that provide add, view, edit, and delete capabilities.

Note. In this blog post, we used GeoServer version 2.20.0.
Workspaces
A Workspace serves as a means to group and organize similar layers together. It enables you to associate multiple layers and stores with a single workspace. Each workspace can be managed independently, with its own security policies, data administrator, and web services. Generally, a workspace is created for each project, along with its corresponding stores and layers.
Add a workspace
To create a new workspace, navigate to Data > Workspaces page. Click on the Add new workspace, then you have to enter a Workspace Name and Namespace URI.
- Workspace Name: It is an identifier describing your project. It must not exceed ten characters or contain spaces (due to use as an XML “prefix” when downloading content).
- Namespace URI: URI stands for Uniform Resource Identifier, is a formal system for uniquely identifying resources, and consists of two types: URL and URN. A Namespace URI does not need to point to an actual location on the web and only needs to be a unique identifier.
- Default Workspace: This setting is useful when you only have one workspace defined. The setting allows users to communicate with the web service using just the layer name (rather than prefix:layer name required when managing hundreds of workspaces). select the Default Workspace checkbox to assign this as your default workspace.
- Sometimes the same feature type needs to be published multiple times with a different mapping and with the same name. This can be done in GeoServer using Isolated Workspaces functionality.
Press the Submit button to save your new workspace.
Edit a workspace
To view or edit a workspace, click on the Workspace name, then a workspace configuration page will be displayed.
- For Settings, select the Enabled checkbox to customize the settings and contact details for the workspace level. This allows you to define an introduction to your workspace, and override the global settings for your workspace.
- Use the checkbox located next to each service to override the Global Settings for the associated service. Once enabled, clicking on the Services link will open the settings page for the service, allowing default values for the service title, abstract, and other details to be supplied.
- The Security tab allows to set data access rules at the workspace level. To create/edit the workspace’s data access rules, check/uncheck checkboxes according to the desired role.
Remove a workspace
To remove a workspace, select it by clicking the checkbox next to the workspace. Multiple workspaces can be selected, or all can be selected by clicking the checkbox in the header. Click the Remove selected workspace(s) link. Now you will be asked to confirm or cancel the removal.

Pressing OK removes the selected workspace(s).
Stores
The Stores manage the connection parameters between GeoServer and the data sources where your spatial data reside. They provide a mechanism for GeoServer to connect to various data repositories, including file systems, databases, and cloud storage services. Each store represents a unique data source and has its configuration settings.
Add a store
To add a Store, navigate to Data > Stores page. Click on Add new store, then you will be prompted to choose a data source. GeoServer supports several different data formats, but they are classified into three types: “Vector data”, “Raster data”, and “Cascaded Services”.
- Vector data formats include Shapefile, GeoPackage, PostGIS, and Properties. The most common and widely used option is Shapefile.
- Raster data formats include ArcGrid, GeoPackage, GeoTIFF, ImageMosaic, and WorldImage. The most used and well-known are the GeoTIFF and the WorldImage. GeoTIFF is a spatial extension of the “TIFF” format and tags image files with geographic information. A WorldImage is similar, but georeferencing information is saved in an external text file.
- Cascaded Services include WFS, WMS, and WMTS. GeoServer can proxy a remote Web Map Service and Web Map Tile Service and load it as a store in GeoServer.
Other data sources are supplied as GeoServer extensions. Extensions are downloadable modules that add functionality to GeoServer. Click the appropriate data source to configure the store, because the connection parameters vary depending on data format.

To create a Shapefile data store, follow these steps:
- Select the desired workspace from the drop-down menu.
- Enter the Data Source Name. Make sure the “Enabled” checkbox is selected. Otherwise, access to the store along with all the datasets defined, will be disabled for it.
- In the “Shapefile location”, click on the Browse link to define the location of the shapefile.
- The DBF file format has a field for character encoding, but it doesn’t always accurately indicate the actual encoding used. As a result, it is important to specify the DBF character set correctly when decoding strings to ensure accurate interpretation of the data.
When finished, press the Save button. Now it will automatically redirect to the Add New Layer page, which will be completely described in the Layer section. Next, we will explain how to edit and remove the store.
Edit a store
To view or edit a store, click on the Store name. A Store configuration page will be displayed. The exact contents of this page depend on the specific format of the Store. After your configuration is modified, press the Save button.
Remove a store
To remove a Store, click the checkbox next to the store. Multiple stores can be selected, or all can be selected by clicking the checkbox in the header. Click the Remove selected stores. You will be asked to confirm the removal of the configuration for the store(s) and all resources defined under them.

Pressing OK removes the selected Store(s), and returns to the Stores page.
Layers
From the administration interface, navigate to the Data > Layers page. On this page, you can view and edit existing layers, add a new layer, or remove a layer. It also shows you the type of layers in the Type column, with a different icon for vector and raster layers, according to the geometry shape. The Title, Workspace, and Store values of each layer are shown.
Add a layer
Clicking the Add a new layer, brings up a New Layer Chooser panel. The menu displays all currently enabled stores. If you want to add a new layer for a published resource, click on Publish Again. Note that when republishing the name of the new layer may have to be modified to avoid conflict with an existing layer.

The beginning sections (Basic Resource Info, Keywords, and Metadata link) provide metadata, specifically textual information that makes the layer data easier to understand and work with. The metadata information will appear in the capabilities documents which refer to the layer. These options are:
- Name: The identifier used to reference the layer in WMS requests that are filled automatically. Note that for a new layer for an already-published resource, the name must be changed to avoid conflict.
- Enabled: A layer that is not enabled won’t be available to any kind of request, it will just show up in the configuration and in REST config.
- Advertised: A layer is advertised by default. A non-advertised layer will be available in all data access requests (for example, WMS GetMap, WMS GetFeature) but won’t appear in any capabilities document or the layer preview.
- Title: The human-readable description to briefly identify the layer to clients that filled automatically. GeoServer provides an item for the title and abstract and describes how to specify metadata in different languages. By default, it’s disabled and can be enabled from the i18n checkbox.
- Abstract: It describes the layer in detail.
- Keywords: List of short words associated with the layer to assist catalog searching. To add a new keyword, enter your keyword, then press the Add Keyword button to add it.
- Metadata & Data Links: It allows linking to external documents that describe the data layer. The Type input provides a few example types, like FGDC or ISO19115, but allows any other type to be declared. Format provides its mime type, while URL points to the actual metadata.
A Coordinate Reference System (CRS) defines how georeferenced spatial data relates to real locations on the Earth’s surface. GeoServer needs to know the CRS of your data. This information is used for computing the latitude/longitude bounding box and reprojecting the data during both WMS and WFS requests.
- Native SRS: Specifies the coordinate system the layer is stored in. Clicking the projection link displays a description of the SRS.
- Declared SRS: Specifies the coordinate system GeoServer publishes to clients.
- SRS Handling: Determines how GeoServer should handle projection when the two SRSes differ. Possible values are:
  - Force declared: This is the default option and normally the best course of action. Use this option when the source has no native CRS, has a wrong one, or has one matching the EPSG code.
  - Reproject from native: This setting should be used when the native data set has a CRS that does not match any official EPSG. E.g. Lambert Conformal Conic to WGS84.
  - Keep native: This is a setting that should be used in very rare cases. Keeping native means using the declared one in the capabilities documents, but then using the native CRS in all other requests.
The Bounding Box determines the extent of the data within a layer. It includes two items: “Native Bounding Box” and “Lat/Lon Bounding Box”. Generate the bounds for the layer by pressing the Compute from data and Compute from native bounds button in the Bounding Boxes section.

Vector layers have a list of the “Feature Type Details”. These include the Property and Type of a data source. Remember that, if you want to change your data by ArcGIS or QGIS, like add or remove features or fields, or edit the attribute table contents, there is no need to create a layer again in the GeoServer, just press the Reload feature type, so your layer will be updated.

Remember that GeoServer, by default, publishes all the features that are currently available in the layer. However, if you wish to limit the features to a specific subset, you can achieve this by specifying a CQL filter in the configuration. Upon completing the layer configuration, finalize the process by pressing the Save button. This action will create the layer based on the specifications you have provided.
Edit a layer
To view or edit a layer, click on the Layer Name from the Layer page. A layer configuration page will be displayed. After your configuration is modified, press the Save button.
Remove a layer
To remove a layer, select the checkbox next to the layer. Multiple layers can be selected, or all can be selected by clicking the checkbox in the header. By clicking the Remove selected layers link, you will be asked to confirm the removal of the configuration for the layer(s) and all resources defined under them.

Press OK removes the selected layer(s), and returns to the Layers page.

31 January 2024
9:54
The Five Minute Fantasy Map Maker
sur Google Maps Mania

This is Middle England an interactive fantasy map which I made in under 5 minutes, using World Anvil. Middle England is a sacred a magical realm steeped in the ancient lores of rune-crafting, dream-weaving and alchemy.World Anvil bills itself as a "Worldbuilding Toolset & RPG Campaign Manager Created for Writers, Gamemasters & Creatives". One of the tools in this tool-set is a map

30 January 2024
11:23
gvSIG Team: Manual gvSIG Desktop 2.6
sur Planet OSGeo

La última versión de gvSIG Desktop además de considerables mejoras ha traído un cambio en la interfaz del programa, modernizando el aspecto de los iconos utilizados.

Hoy os compartimos el manual completo en PDF de gvSIG Desktop 2.6, que es una guía estupenda para los nuevos usuarios y a los que lleváis tiempo trabajando con gvSIG Desktop os puede ser útil para familiarizaros con los nuevos iconos.

Y aunque seréis los menos, para los que queráis seguir utilizando el juego de iconos «clásico» podéis instalarlo desde el Administrador de Complementos.

El manual de gvSIG Desktop 2.6 se puede descargar en este enlace.

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