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20 May 2024
sur Free and Open Source GIS Ramblings: New Trajectools 2.1 and MovingPandas 0.18 releases

Publié: 20 May 2024, 5:07pm CEST
Today marks the 2.1 release of Trajectools for QGIS. This release adds multiple new algorithms and improvements. Since some improvements involve upstream MovingPandas functionality, I recommend to also update MovingPandas while you’re at it.

If you have installed QGIS and MovingPandas via conda / mamba, you can simply:
```
conda activate qgis
mamba install movingpandas=0.18
```
Afterwards, you can check that the library was correctly installed using:
```
import movingpandas as mpd
mpd.show_versions()
```
Trajectools 2.1
The new Trajectools algorithms are:
- Trajectory overlay — Intersect trajectories with polygon layer
- Privacy — Home work attack (requires scikit-mobility)
  - This algorithm determines how easy it is to identify an individual in a dataset. In a home and work attack the adversary knows the coordinates of the two locations most frequently visited by an individual.
- GTFS — Extract segments (requires gtfs_functions)
- GTFS — Extract shapes (requires gtfs_functions)
  - These algorithms extract public transport routes (GTFS shapes) and route segments between stops (GTFS segments) from GTFS ZIP files using gtfs_functions.Feed.shapes and .segments, respectively.
Furthermore, we have fixed issue with previously ignored minimum trajectory length settings.

Scikit-mobility and gtfs_functions are optional dependencies. You do not need to install them, if you do not want to use the corresponding algorithms. In any case, they can be installed using mamba and pip:
```
mamba install scikit-mobility
pip install gtfs_functions
```
MovingPandas 0.18
This release adds multiple new features, including
- Method chaining support for add_speed(), add_direction(), and other functions
- New TrajectoryCollection.get_trajectories(obj_id) function
- New trajectory splitter based on heading angle
- New TrajectoryCollection.intersection(feature) function
- New plotting function hvplot_pts()
- Faster TrajectoryCollection operations through multi-threading
- Added moving object weights support to trajectory aggregator
For the full change log, check out the release page.

sur Spreading Love & Peace in Nutopia

Publié: 20 May 2024, 11:13am CEST par Keir Clarke

Nutopia is a conceptual country which was created by John Lennon and Yoko Ono in 1973 as a form of artistic expression and social commentary. Nutopia was created to be a utopian country with no land, no borders, and no passports, symbolizing an idea of peace and global citizenship.The country of Nutopia has a white flag, symbolizing its surrender to peace, and its national anthem is a few

sur Mappery: Aime Cesaire by c215

Publié: 20 May 2024, 11:00am CEST
This week, we start a series with the artist Christian Guemy. C215, Christian Guemy’s artistic pseudonym, is a French street artist renowned for his unique blend of historical figures and vintage map boards. By transforming these weathered maps into canvases, C215 breathes new life into forgotten objects while leaving a powerful commentary on the passage of time and the enduring legacy of influential figures.

A Fusion of Past and Present

C215’s signature style involves meticulously stencilling portraits of iconic individuals—activists, scientists, artists, and more—directly onto the aged surfaces of map boards. These maps, often discarded or forgotten, become powerful symbols of the past. By juxtaposing these historical figures with the faded geography, C215 compels viewers to contemplate the connection between the past, present, and future.

A Street Art Pioneer

C215 is considered a pioneer of the French street art movement. He emerged in the early 2000s, bringing his art form to the streets of Paris and beyond. His work can be found adorning walls, buildings, and even abandoned spaces throughout Europe and across the globe.

More Than Just Portraits

While portraits are a defining element of C215’s art, his work delves into social commentary. He has used his stencils to address issues of war, poverty, and environmental degradation. The weathered maps themselves become a metaphor for the fragility of our world and the need to learn from the past.

C215’s art transcends the boundaries of traditional street art. By using vintage map boards as his canvas, he creates a powerful dialogue between past and present, reminding us of the enduring impact of history’s figures and the importance of learning from their legacies.

For further exploration, you can search online for:
- Images of C215’s street art
- Interviews with C215
C215 website is c215.fr (link to the English version).
MapsintheWild Aime Cesaire by c215
19 May 2024
sur Mappery: Planet Gummi

Publié: 19 May 2024, 11:00am CEST

Marc-Tobias said “Seen in Tokyo, fineprint says produced in Spain”
MapsintheWild Planet Gummi
18 May 2024
sur Mappery: Enter through the Mappy Doors

Publié: 18 May 2024, 11:00am CEST

Reinder sent this pic of the entrance to the Dutch National Archive, he said “It’s hard to see – but these glass doors in the Dutch National Archives in The Hague do contain a cartographic image of the Netherlands”.

Instead of through the looking glass, we have through the cartograph ?
MapsintheWild Enter through the Mappy Doors

sur Man Made Star Signs

Publié: 18 May 2024, 9:27am CEST par Keir Clarke

Space Trash Signs has hit upon a novel and fascinating way of visualizing the problems of space pollution. According to NASA there are around 9,000 tonnes of debris now floating around Earth at speeds of up to 25,000 km an hour. Space Trash Signs uses this debris to create new astronomical constellations or 'star signs'.In 1978 NASA scientist Donald J. Kessler published a paper which

17 May 2024
sur Mappery: OS Picnic Blanket

Publié: 17 May 2024, 12:00pm CEST

When your Canadian friends have just arrived in London and have settled in. I must admit I am still a bit jealous of their blanket.
MapsintheWild OS Picnic Blanket

sur Segregation in the U.S.

Publié: 17 May 2024, 7:56am CEST par Keir Clarke

Stanford University's Segregation Explorer visualizes the levels of segregation between schools and school districts in the United States. Developed by the Educational Opportunity Project at Stanford University, this new interactive map shows the levels of segregation across various regions, including states, metropolitan areas, school districts, and neighborhoods.The new map includes

16 May 2024
sur Martin Davis: JTS Topological Relationships - the Next Generation

Publié: 16 May 2024, 11:41pm CEST
The most fundamental and widely-used operations in the JTS Topology Suite are the ones that evaluate topological relationships between geometries. JTS implements the Dimensionally-Extended 9 Intersection Model (DE-9IM), as defined in the OGC Simple Features specification, in the RelateOp API.
DE-9IM matrix for overlapping polygons
The RelateOp algorithm was the very first one implemented during the initial JTS development, over 20 years ago. At that time it was an appealing idea to implement a general-purpose topology framework (the GeometryGraph package), and use it to support topological predicates, overlay, and buffering. However, some disadvantages of this approach have become evident over time:
- the need to create a topological graph structure limits the ability to improve performance. This has led to the implementation of PreparedGeometry - but that adds further complexity to the codebase, and supports only a limited set of predicates.
- a large number of code dependencies make it hard to fix problems and improve semantics
- constructing a full topology graph increases exposure to geometric robustness errors
- GeometryCollections are not supported (initially because the OGC did not define the semantics for this, and now because adding this capability is difficult)
There's an extensive list of issues relating (ha!) to RelateOp here.
The importance of this functionality is especially significant since the same algorithm is implemented in GEOS. That codebase is used to evaluate spatial queries in popular spatial APIs such as Shapely and R-sf, and numerous systems such as PostGIS, DuckDB, SpatialLite, QGIS, and GDAL (to name just a few). It would not be surprising to learn that the RelateOp algorithm is executed billions of times per day across the world's CPUs.
During the subsequent years of working on JTS I realized that there was a better way to evaluate topological relationships. It would required a ground-up rewrite, but would avoid the shortcomings of RelateOp and provide better performance and a more tractable codebase. Thanks to my employer Crunchy Data I have finally been able to make this idea a reality. Soon JTS will provide a new algorithm for topological relationships called RelateNG.
Key Features of RelateNG
The RelateNG algorithm incorporates a broad spectrum of improvements over RelateOp in the areas of functionality, robustness, and performance. It provides the following features:
- Efficient short-circuited evaluation of topological predicates (including matching custom DE-9IM matrix patterns)
- Optimized repeated evaluation of predicates against a single geometry via cached spatial indexes (AKA "prepared mode")
- Robust computation (only point-local geometry topology is computed, so invalid topology does not cause failures)
- GeometryCollection inputs containing mixed types and overlapping polygons are supported, using union semantics.
- Zero-length LineStrings are treated as being topologically identical to Points.
- Support for BoundaryNodeRules.
Using the RelateNG API
The main entry point is the RelateNG class. It supports evaluating topological relationships in three different ways:
- Evaluating a standard OGC named boolean binary predicate, specified via a TopologyPredicate instance. Standard predicates are obtained from the RelatePredicate factory functions intersects, contains, overlaps, etc.
- Testing an arbitrary DE-9IM relationship by matching an intersection matrix pattern (e.g. "T**FF*FF*", which is the pattern for a relation called Contains Properly).
- Computing the full value of a DE-9IM IntersectionMatrix.
RelateNG operations can be executed in two modes: stateless and prepared. Stateless mode is provided by the relate static functions, which accept two input geometries and evaluate a predicate. For prepared mode, a single geometry is provided to the prepare functions to create a RelateNG instance. Then the evaluate instance methods can be used to evaluate spatial predicates on a sequence of geometries. The instance creates spatial indexes (lazily) to make topology evaluation much more efficient. Note that even stateless mode can be significantly faster than the current implementation, due to short-circuiting and other internal heuristics.
Here is an example of matching an intersection matrix pattern, in stateless mode:
```
boolean isMatched = RelateNG.relate(geomA, geomB, "T**FF*FF*");
```
Here is an example of setting up a geometry in prepared mode, and evaluating a named predicate on it:
```
RelateNG rng = RelateNG.prepare(geomA);
for (Geometry geomB : geomSet) {
    boolean predValue = rng.evaluate(geomB, RelatePredicate.intersects());
}
```
Rolling It Out
It's exciting to launch a major improvement on such a core piece of spatial functionality. The Crunchy spatial team will get busy on porting this algorithm to GEOS. From there it should get extensive usage in downstream projects. We're looking forward to hearing feedback from our own PostGIS clients as well as other users. We're always happy to be able to reduce query times and equally importantly, carbon footprints.
In further blog posts I'll describe the RelateNG algorithm design and provide some examples of performance metrics.
Future Ideas
The RelateNG implementation provides an excellent foundation to build out some interesting extensions to the fundamental DE-9IM concept.
Extended Patterns
The current DE-9IM pattern language is quite limited. In fact, it's not even powerful enough to express the standard named predicates. It could be improved by adding features like:
- disjunctive combinations of patterns. For example, touches is defined by "FT******* | F**T***** | F***T****"
- dimension guards to specify which dimensions a pattern applies to. For example, overlaps is defined by "[0,2] T*T***T** | [1] 1*T***T**"
- while we're at it, might as well support dotted notation and spaces for readability; e.g. "FT*.***.***"
Approximate Spatial RelationshipsA requirement that comes up occasionally is to compute approximate spatial relationships between imprecise data using a distance tolerance. This is useful in datasets where features don't match exactly due to data inaccuracy. Because RelateNG creates topology only in the neighbourhood of specified points, it should be possible to specify the neighbourhood size using a distance tolerance. Essentially, vertices and line intersections will "snap together" to determine the effective topology. Currently within-distance queries are often used to compute "approximate intersects". Adding a distance tolerance capability to RelateNG will allow other kinds of approximate relationships to be evaluated as well.
Further Performance Optimizations?
A challenge with implementing algorithms over a wide variety of spatial types and use cases is how to provide general-purpose code which matches (or exceeds) the efficiency of more targeted implementations. RelateNG analyzes the input geometries and the predicate under evaluation to tune strategies to reduce the amount of work needed to evaluate the DE-9IM. It may be that profiling specific use cases reveals further hotspots in the code which can be improved by additional optimizations.
Curve Support
GEOS has recently added support for representing geometries with curves. The RelateNG design is modular enough that it should be possible to extend it to allow evaluating relationships for geometries with curves.
sur Fernando Quadro: O Poder da Consulta Geoespacial

Publié: 16 May 2024, 2:00pm CEST

A consulta geoespacial, ou SQL espacial, está revolucionando a maneira como conduzimos operações de Sistemas de Informações Geográficas (GIS). Ao aproveitar funções e recursos espaciais em bancos de dados SQL, podemos analisar e obter insights valiosos de dados espaciais de maneira transparente.

Uma das principais vantagens do SQL espacial é a sua capacidade de encontrar relações entre geometrias. Seja para determinar proximidade, sobreposição ou contenção, o SQL espacial nos permite desbloquear conexões significativas em conjuntos de dados espaciais. Esta funcionalidade é crucial para diversas aplicações, desde planejamento urbano até monitoramento ambiental e muito mais.

Além disso, a integração de SQL espacial em processos de back-end enriquece nosso código com poderosos recursos analíticos. Ao aplicar a análise espacial diretamente em nossas consultas de banco de dados, simplificamos os fluxos de trabalho e aumentamos a eficiência da tomada de decisões baseada em dados.

No mundo atual orientado por dados, dominar o SQL espacial abre portas para um mundo de possibilidades em GIS e muito mais. Você está pronto para aproveitar todo o potencial da análise de dados espaciais?

Gostou desse post? Conte nos comentários

Fonte: webgis.tech
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sur Mappery: Levis go Mappy

Publié: 16 May 2024, 11:00am CEST

Marc-Tobias spotted these designery jeans on his travels in Japan. They are sort of must-have for map loving jeans wearers, you can buy them here
MapsintheWild Levis go Mappy

sur Warmer Stripes for 2023

Publié: 16 May 2024, 8:45am CEST par Keir Clarke

average global temperatures since 1850 Ed Hawkins' Warming Stripes visualization has now been updated to include 2023. Last year was the warmest year since accurate global records began. Globally the average temperature was 1.18°C (2.12°F) above the 20th-century average of 13.9°C (57.0°F). This means that your local warming stripes will probably now end with a very dark maroon colored stripe

15 May 2024
sur Mappery: Missions of Mexico

Publié: 15 May 2024, 11:00am CEST

Walter Schwartz sentg us this, he said “Northwestern Mexico, where Baja, Sonora, and Sinaloa provinces are found, has been home to a *lot* of missions since at least 1591. I counted around 100 established in the 1600s and 1700s alone. This picto-map is in the pictured church, La Mision de San Ignacio in the town of San Ignacio, Baja California Sur, Mexico.
MapsintheWild Missions of Mexico

sur Is Europe Ready to Burn?

Publié: 15 May 2024, 9:17am CEST par Keir Clarke

This week Spanish news site El Diario wondered if Europe was ready for megafires. One of the most noticeable consequences of global heating over the last few years has been the increase in large wild fires across the world. In Megafires Burn Europe El Diario has mapped out all the wildfires in Europe this century which have burnt an area of more than 500 hectares. Two accompanying

14 May 2024
sur GeoSolutions: GeoSolutions Presenting at UN Maps Conference 2024

Publié: 14 May 2024, 8:04pm CEST

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sur Oslandia: (Fr) Direction de la Sûreté SNCF x accompagnement QGIS et QGIS Server

Publié: 14 May 2024, 3:21pm CEST

Sorry, this entry is only available in French.
sur Fernando Quadro: Geoprocessamento e IA no combate à dengue

Publié: 14 May 2024, 2:00pm CEST

Um software capaz de identificar, a partir de imagens aéreas, caixas d’água sobre telhados ou lajes e piscinas em áreas abertas foi desenvolvido por pesquisadores brasileiros com o auxílio de ferramentas de Inteligência Artificial. A proposta é usar esse tipo de imagem como indicador de zonas especialmente vulneráveis a infestações do mosquito Aedes aegypti, transmissor de doenças como dengue, zika e chikungunya. Além disso, a estratégia desponta como potencial alternativa para um mapeamento socioeconômico dinâmico das cidades – um ganho para diferentes políticas públicas.

A pesquisa, apoiada pela Fapesp, foi conduzida por profissionais da USP, da Universidade Federal de Minas Gerais (UFMG) e da Superintendência de Controle de Endemias (Sucen) da Secretaria de Estado da Saúde de São Paulo.

Entre outras coisas, o grupo almeja incorporar outros elementos para serem detectados nas imagens e quantificar as taxas reais de infestação do Aedes aegypti em uma dada região para refinar e validar o modelo. “Nós esperamos criar um fluxograma que possa ser aplicado em diferentes cidades para encontrar áreas de risco sem a necessidade de visitas domiciliares, prática que gasta muito tempo e dinheiro público”.

Apesar de as fotos aéreas de Campinas terem sido obtidas com um drone, espera-se que, no futuro, a estratégia testada nessa pesquisa recorra apenas às imagens de satélite.

No estudo em Belo Horizonte, as imagens de satélite foram empregadas com sucesso – elas precisam de alta resolução para que o computador consiga identificar os padrões.

Embora esse tipo de metodologia pareça custoso, ele gera uma potencial economia ao dispensar a necessidade de visitas presenciais para mapear, casa por casa, áreas suscetíveis à dengue. Em vez disso, os agentes de saúde aproveitariam as informações obtidas remotamente – e processadas com a Inteligência Artificial – para se dirigir aos locais prioritários com mais assertividade.

Fonte: webgis.tech
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sur Mappery: Aerial Ping Pong

Publié: 14 May 2024, 11:00am CEST

Derick Rethams spotted this beer mat in his local pub in Maida Vale. For those of you who are interested

Southern Hemisphere IPA Northern Monk Collaboration. Motueka and Wai-Iti hops bring notes of lime, stone fruits and citrus, alongside a lofty dry hopping of Eclipse and Nectaron for a vibrant mix of orange, tropical fruit and a touch of pine to finish.
[https:]
MapsintheWild Aerial Ping Pong

sur OGC announces Peter Rabley as new CEO

Publié: 14 May 2024, 10:45am CEST par Simon Chester

The Open Geospatial Consortium (OGC) is excited to announce the appointment of Peter Rabley as OGC’s Chief Executive Officer (CEO). The announcement was made last night at the Geospatial World Forum 2024 in Rotterdam, The Netherlands.

Peter brings to OGC a wealth of experience from the private, governmental, and not-for-profit sectors, including in venture financing, and in developing and implementing scale-up strategies for international not-for-profits.

“I am excited and honored to be appointed as OGC’s CEO,” said Peter Rabley. “OGC is well positioned to build on its incredible 30 year legacy by responding to the ever-increasing rate of change seen in technology and society alike. Opportunities and challenges have never been more apparent and I see tremendous potential for growth in new markets around the globe. This is the time of geospatial.”

“I am particularly excited to have Peter leading OGC,” commented Prashant Shukle, Chair of the OGC Board of Directors. “Peter has a proven track record in the public, private, and not-for-profit areas of the geospatial industry, and closely aligns with what our key stakeholders and partners were telling us they wanted in a CEO. The OGC Board took the time to get this selection right, and we are very excited about how Peter fits with our plans for a reinvigorated and repositioned OGC.”

Peter’s appointment to CEO is timely, with it coming during OGC’s 30th anniversary year—a time when OGC is taking stock of its successes while modernizing to respond to a global economy that increasingly uses geospatial technologies across so many domains and applications.

The OGC is one of the world’s largest data and technology consortia and one of its longest standing. Under Peter’s leadership, OGC will work with new and existing partners and stakeholders to bring accelerated, practical, and implementable solutions to our community.

About Peter Rabley
Peter Rabley is a technology executive, investor and geographer. He has spent the last thirty years creating and operating geospatial businesses that map the earth to improve lives and protect the resources of our planet. Prior to OGC, Peter Rabley co-founded PLACE, a non-profit data trust that makes mapping more accessible and affordable so that decision makers have the data they need to improve the places around them. At PLACE, Peter was responsible for strategy and managing the organization’s investment portfolio. Before PLACE, Peter was a venture partner at leading impact investing firm Omidyar Network, where he led the Property Rights initiative.
Peter has built various businesses including ILS, an enterprise software firm that provided property taxation, registration and mapping solutions to governments globally. After its acquisition by Thomson Reuters, he became Vice President for Global Business Development and Strategy at Thomson Reuters.
Peter remains on the board of PLACE. He also serves on the board of the Radiant Earth Foundation, Meridia, and Microbuild. He is a Fellow of the Royal Geographical Society and the Royal Society of Arts. Peter graduated from the University of Miami with a B.A. in Geography and Economics and an M.A. in Geography.
Peter Rabley (L) on stage at Geospatial World Forum 2024 with OGC Board Members (L-R) Zaffar Sadiq Mohamed-Ghouse, Rob van de Velde, Chair Prashant J. Shukle, Frank Suykens, and Deborah Davis.
The post OGC announces Peter Rabley as new CEO appeared first on Open Geospatial Consortium.

sur Welcome To Your New Gardening Zone

Publié: 14 May 2024, 10:44am CEST par Keir Clarke

In November of last year the US Department of Agriculture (USDA) updated the US plant hardiness map based on the latest weather data (1991–2020). The USDA Plant Hardiness Zone Map is a tool which is designed to help gardeners determine which plants are most likely to thrive in their location. The USDA map is divided into 13 zones based on average coldest temperatures. Zone 1 is

13 May 2024
sur Mappery: Stanfords Discovered

Publié: 13 May 2024, 11:00am CEST

My friend Elizabeth just discovered Stanfords store in Covent Garden, she couldn’t resist sending me a pic but asking me “do you know about this place?” really?!?

This isn’t the first time we have featured Stanfords here but it really is the place of pilgrimage for map lovers visiting London.
MapsintheWild Stanfords Discovered

sur Can You Draw America?

Publié: 13 May 2024, 9:19am CEST par Keir Clarke

This morning I discovered that my geographical knowledge of the United States is ten times worse than I previously thought. Judging by my attempts to draw the outlines of all 50 states onto a blank map of the U.S. my application to the American Geographical Society is probably going to be summarily rejected.Regular readers of Maps Mania (yes both of you) may remember that in March I posted a

sur OPENGIS.ch: QGIS DXF Export enhancements

Publié: 13 May 2024, 6:48am CEST

At OPENGIS.CH, we’ve been working lately on improving the DXF Export QGIS functionality for the upcoming release 3.38. In the meantime, we’ve also added nice UX enhancements for making it easier and much more powerful to use!

Let’s see a short review.
DXF Export app dialog and processing algorithm harmonized
You can use either the app dialog or the processing algorithm, both of them offer you equivalent functionality. They are now completely harmonized!
Export settings can now be exported to an XML file
You can now have multiple settings per project available in XML, making it possible to reuse them in your workflows or share them with colleagues.
Load DXF settings from XML. All settings are now well remembered between dialog sessions
QGIS users told us there were some dialog options that were not remembered between QGIS sessions and had to be reconfigured each time. That’s no longer the case, making it easier to reuse previous choices.
“Output layer attribute” column is now always visible in the DXF Export layer tree
We’ve made sure that you won’t miss it anymore.
Possibility to export only the current map selection
Filter features to be exported via layer selection, and even combine this filter with the existing map extent one.
Empty layers are no longer exported to DXF
When applying spatial filters like feature selection and map extent, you might end up with empty layers to be exported. Well, those won’t be exported anymore, producing cleaner DXF output files for you.
Possibility to override the export name of individual layers
It’s often the case where your layer names are not clean and tidy to be displayed. From now on, you can easily specify how your output DXF layers should be named, without altering your original project layers.
Override output layer names for DXF export.
We’ve also fixed some minor UX bugs and annoyances that were present when exporting layers to DXF format, so that we can enjoy using it. Happy DXF exporting!

We would like to thank the Swiss QGIS user group for giving us the possibility to improve the important DXF part of QGIS
sur Paul Ramsey: Cancer 9

Publié: 13 May 2024, 2:00am CEST

Scanxiety.

This is where I am right now. Scanxiety.

Each stage of the cancer experience is marked by a particular set of tests, of scans.

I actually managed to get through my first set of scans surprisingly calmly. After getting diagnosed (“there’s some cancer in you”), they send you for “staging”, which is an MRI and CT scan.

These scans both involve large, Star Trek seeming machines, which make amazing noises, and in the case of the CT machine I was put through was decorated with colorful LED lights by the manufacturer (because it didn’t look whizzy enough to start with?).

I kind of internalized the initial “broad-brush” staging my GI gave me, which was that it was a tumor caught early so I would be early stage, so I didn’t worry. And it turned out, that was a good thing, since the scans didn’t contradict that story, and I didn’t worry.

The CT scan, though, did turn up a spot on my hip bone. “Oh, that might be a bone cancer, but it’s probably not.” Might be a bone cancer?!?!?

How do you figure out if you have “a bone cancer, but it’s probably not”? Another cool scan, a nuclear scan, involving being injected with radioactive dye (frankly, the coolest scan I have had so far) and run through another futuristic machine.

This time, I really sweated out the week between the scan being done and the radiology coming back. And… not bone cancer, as predicted. But a really tense week.

And now I’m in another of those periods. The result of my major surgery is twofold: the piece of me that hosted my original tumor is now no longer inside of me; and, the lymph nodes surrounding that piece are also outside of me.

They are both in the hands of a pathologist, who is going to tell me if there is cancer in the lymph nodes, and thus if I need even more super unpleasant attention from the medical system in the form of several courses of chemotherapy.

The potential long term side effects of the chemotherapy drugs used for colorectal cancers include permanent “peripheral neuropathy”, AKA numbness in the fingers and toes. Which could put a real crimp in my climbing and piano hobbies.

So as we get closer to getting that report, I am experiencing more and more scanxiety.

If I escape chemo, I will instead join the cohort of “no evidence of disease” (NED) patients. Not quite cured, but on a regular diet of blood work, scans, and colonoscopy, each one of which will involve another trip to scanxiety town. Because “it has come back” starts as a pretty decent probability, and takes several years to diminish to something safely unlikely.

Yet another way that cancer is a psychological experience as well as a physical one.

Talk to you again soon, inshalla.
12 May 2024
sur Mappery: Ortelius and his Globe

Publié: 12 May 2024, 11:00am CEST

Reinder shared this pic of Ortelius and his globe by Rubens from his visit to the Plantin-Moretus museum in Antwerp, Belgium.

Nice detail
MapsintheWild Ortelius and his Globe
11 May 2024
sur Mappery: One World cafe, and more

Publié: 11 May 2024, 12:00pm CEST

Walking around Parson Green, I discovered this cafe and wine bar, which also sells furniture and cookware. It was too late on a Sunday evening to try it. And the extensive use of the world maps without missing Madagascar and New Zealand is worth a post.
MapsintheWild One World cafe, and more

sur Active Video

Publié: 11 May 2024, 9:52am CEST par Keir Clarke

Glen Chiacchier has devised an interactive mapped, timeline for the American civil rights documentary Eyes on the Prize. His 'active video' of Eyes on the Prize turns what might otherwise be a passive viewing exercise into an active learning experience by providing viewers with the opportunity to browse the documentary by date and location. The civil rights documentary Eyes on the Prize

sur Alexandre Neto: Create a PyQGIS Development Environment Using Conda and VScode

Publié: 11 May 2024, 3:32am CEST

As a self-taught PyQGIS developer, one of my main hurdles has always been to prepare the development environment for PyQGIS. An environment that allow me to run PyQGIS scripts, helps me code faster by providing PyQGIS highlighting and autocompletion, enables me to debug my plugins and scripts as they run, etc… I have been a user (and even a… “cof cof”… maintainer) of the QGIS packages for conda provided by the conda-forge community.
10 May 2024
sur GeoSolutions: GeoSolutions Presenting at Geospatial World Forum 2024

Publié: 10 May 2024, 6:46pm CEST

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sur Mappery: David Hockney Immersive experience

Publié: 10 May 2024, 12:00pm CEST

These shots were taken at Lightroom, London’s David Hockney immersive experience.

The show comes back on 17 June 2024.
MapsintheWild David Hockney Immersive experience

sur The Secret Life of Bridges

Publié: 10 May 2024, 9:57am CEST par Keir Clarke

This amazing animated map visualization shows the cumulative growth of bridges in the U.S. since 1800. The map reveals the development of mass transport over the last two centuries and the enormous role that bridges play in the U.S. economy. The animation is just one of a number of impressive mapped visualizations in Esri's Secret Life of Bridges. The Secret Life of Bridges is an Esri story-map
09 May 2024
sur Virtual Road Trips

Publié: 9 May 2024, 9:46am CEST par Keir Clarke

This summer why not go on that huge cross-country road-trip that you've always dreamed of undertaking? The great American Road Trip is a call to freedom. It is a chance to craft your own adventure while witnessing the vast beauty and the diversity of landscapes that America has to offer. Whether you crave the thrill of the Pacific Coast Highway or the charm of Route 66, a road-trip promises
08 May 2024
sur The Future of Street View

Publié: 8 May 2024, 3:41pm CEST par Keir Clarke

In 2007 Google began adding 360 degree panoramic images to Google Maps. It is no exaggeration to say that the introduction of Street View revolutionized online mapping. Now users could not only zoom into their neighborhoods in satellite view but they could also virtually explore their area in Street View.It is almost impossible to predict the next major revolution in online mapping. For a
06 May 2024
sur Hexagen World

Publié: 6 May 2024, 9:00am CEST par Keir Clarke

Hexagen World is a game world generated by players using AI prompts. The game is similar to the popular r/Place project. However in Hexagen World instead of users adding one pixel to a collaborative image they can add AI generated hexagon tiles to a world map.Register with Hexagen World and you can add your own hexagons to the map. Just click on a blank hexagon and enter an AI prompt to
04 May 2024
sur 540 Million Years of Planet Earth

Publié: 4 May 2024, 11:48am CEST par Keir Clarke

540 million years ago the Earth's climate was very different from how it is today. During the Cambrian period global temperatures were warmer than they are now. It is believed there were no polar icecaps and there was likely to have been high levels of precipitation and humidity over much of the planet. Of course our world hasn't always been so warm. The last Ice Age was during the
03 May 2024
sur The 2024 World Press Freedom Rankings

Publié: 3 May 2024, 10:01am CEST par Keir Clarke

Reporters Without Borders (RSF) has released its annual World Press Freedom Index report. The 2024 report analyses and maps the levels of press freedom in countries around the world. The map ranks the level of press freedom in countries based on five different indicators. Norway, Denmark and Sweden respectively lead the 2024 rankings. The United States has fallen to 55th overall. Once seen as a
02 May 2024
sur Whose Plaque is it Anyway?

Publié: 2 May 2024, 11:48am CEST par Keir Clarke

For over 20 years I've wondered what the text on this plaque in East London actually says. This morning I finally decided to explore a few memorial interactive maps to see if I could discover why this bridge over Bow Creek has a plaque, and what the text on the plaque actually says. I thought it might also be a good opportunity to provide a little round-up of the growing number of memorial
01 May 2024
sur The Global Inflation Tracker

Publié: 1 May 2024, 10:08am CEST par Keir Clarke

The Council on Foreign Relations new Global Inflation Tracker provides an intriguing guide to trends in prices across the world since the 1990s. On the map almost 200 countries around the world are colored to show their year-over-year rate of inflation (the darker the color the higher the rate of inflation).If you animate through the data on the map it is striking how stable inflation rates in
30 April 2024
sur Live From Space

Publié: 30 April 2024, 9:49am CEST par Keir Clarke

The 3D ISS Tracker shows the position of the International Space Station above the Earth in real-time. It also shows a stunning live HD view of Earth as seen and broadcast from the ISS. The position of the ISS is indicated by the little yellow dot slowly circling the Earth If you zoom out on the globe you can also view the current positions of the sun and moon. The cloud layer shown on
29 April 2024
sur Weather or Not

Publié: 29 April 2024, 8:37am CEST par Keir Clarke

Do you dream of the perfect vacation weather? Sunshine on the beach, crisp mountain air, or vibrant fall foliage? Imagine a tool that helps you find the ideal destination for your desired climate, anywhere in the country and for any month of the year. This is the promise of Weather or Not, a new interactive map that leverages average weather data to recommend the best time to travel
27 April 2024
sur The US Heat Risk Map

Publié: 27 April 2024, 10:53am CEST par Keir Clarke

A new interactive map has been released to help warn Americans of extreme temperatures. The new HeatRisk map provides a weekly forecast of the lower 48 states showing where temperatures may be high enough to harm people's health.On the HeatRisk map areas are colored to show the forecast risks of extreme heat, using a color ramp that proceeds from green (little or no risk) to magenta (rare and/

19 April 2024
sur Mappery: Cookie Cutter (literally)

Publié: 19 April 2024, 11:00am CEST

Erik spotted this in a thrift shop.

“Best thrift store find of the year: #MapsintheWild cookie cutter (or: clip irl function). I’ll accept the #mapswithoutnewzealand issue. Wouldn’t be more than a crumb anyway!”
MapsintheWild Cookie Cutter (literally)

sur ? of Rafah’s Buildings Destroyed

Publié: 19 April 2024, 7:18am CEST par Keir Clarke

Bloomberg has analysed satellite imagery of the Palestinian city of Rafah and determined that Israel has damaged or destroyed about 32% of the region's buildings.In How the Israel-Hamas War has Reshaped Rafah in Gaza Bloomberg presents a satellite image of the Palestinian city. As you scroll through the article a layer is superimposed on top of this satellite view to show buildings which have

18 April 2024
sur Mappery: Arab Islands in Reflection

Publié: 18 April 2024, 11:00am CEST

Stan Carey shared this mirror map.

“Mirrors in the shape of the Aran Islands at Connemara Airport, alongside Tim Robinson’s map for lo-fi comparison (below)”

MapsintheWild Arab Islands in Reflection

sur The American Home Values Map

Publié: 18 April 2024, 9:04am CEST par Keir Clarke

Home Values in America is a dot density map showing the self-reported value of homes across the whole United States.The map shows home values across the United States using data from the U.S. Census Bureau's 2018-2022 American Community Survey (ACS). The ACS is a large-scale survey that gathers information about the American population every year.The colored dots on the map

sur Paul Ramsey: Cancer 4

Publié: 18 April 2024, 2:00am CEST

Cancer is a mind fuck.

I mean, it’s a body fuck too, obviously, but the early experience for me has been of weird gyrations of mental health and mood with each passing day.

The first thing I did was the first thing everyone does – look up all the different probabilities of five year survival, because that’s what is at the top of the Google search.

With a stage two diagnosis (hard to know if that’s actually what I have, though) Google says I have a 10% chance of dying over the next five years.

That feels like… a lot? A scary amount.

But wait, here’s an fact – my odds of dying just in the ordinary course of affairs over the next five years are about 4.5%.

Does that stop me from being 1000% more terrified, on a daily basis, since receiving my diagnosis? No it does not.

A good deal of that terror, I think, is that cancer promises a patient a long and painful interaction with a medical system that has only destructive rear-guard actions at hand to stop it. Cut things out; kill it with poison; zap it with radiation. These procedures all leave a body worse for wear, and if they don’t work… they bring you back and do some more of them.

My great grandfather died while rolling a ball on the lawn bowling green in his late 80s. Massive stroke, he died doing something he loved and was dead before he hit the ground. Floyd Ramsey hit the mortality jackpot.

Naturally, I would also like to hit that jackpot. Cancer says, “not so fast, you might have a different life experience ahead of you”.

It would be a little too pat to say that getting a diagnosis starts you off on the stages of grief, because that implies some orderly process to the mental evolution. I am not progressing linearly through the stages of grief, so much as visiting them randomly, over and over, in an emotional shuffle mode.

Some days are denial days. Some days are acceptance days. Some days are bargaining days.

I told my councillor last week that “I only feel OK to the extent that I am dissociative”, and that seems to still hold true. I am at my most together when I have fully distracted myself from the diagnosis. I’m not sure if this counts as “taking one day at a time”. Probably not.

Talk to you again soon, on the other side, inshalla.

17 April 2024
sur A recap of the 128th OGC Member Meeting, Delft, The Netherlands

Publié: 17 April 2024, 11:32pm CEST par Simon Chester

Two records were broken in Delft this March: not only was OGC’s 128th Member Meeting our biggest ever – with over 300 representatives from industry, government, and academia attending in-person (and over 100 virtual) – but the meeting also saw a record number of motions for votes on new Standards, highlighting the very productive activities undertaken by the OGC community in recent months.

Held in Delft, Netherlands from 25-28 March, 2024, OGC’s 128th Member Meeting brought together global standards leaders and geospatial experts looking to learn about the latest happenings at OGC, advance geospatial standards, and see what’s coming next. Hosted by TU Delft and sponsored by Geonovum with support from GeoCat and digiGO, the overarching theme for the meeting was GeoBIM for the Built Environment.

As well as the many Standards and Domain Working Group meetings, the 128th Member Meeting also included a Land Administration Special Session, a Geospatial Reporting Indicators ad hoc, a Data Requirements ad hoc, the OGC Europe Forum, an Observational Data Special Session, two Built Environment sessions subtitled The Future of LandInfra and What Urban Digital Twins Mean to OGC, a public GeoBIM Summit, a Quantum Computing ad hoc, and the usual Monday evening reception & networking session and Wednesday night dinner.

The dinner was held at the historic Museum Prinsenhof Delft, former residence of William of Orange, and – grimly – where he was assassinated. On a lighter note, during the dinner Ecere Corporation, represented by Jérôme Jacovella-St-Louis, received an OGC Community Impact Award for their tireless work in driving OGC Standards forward. Congratulations Ecere and Jérôme!
Attendees of the Wednesday night dinner at OGC’s 128th Member Meeting.
Also during the meeting members of the OGC GeoPose and POI SWGs in collaboration the Open AR Cloud team and XR Masters, and support from Geonovum demonstrated interoperable AR browsers. The two AR browsers (one native app, MyGeoVerse by XR Masters, and spARcl, a WebXR-based browser) were able to share/see the same POIs while being geolocalized using the Augmented City Visual Positioning Service (VPS). The VPS receives requests from (and returns) ‘GeoPoses’ to any OGC-compliant app that has implemented the GeoPose standard. The project details are described on this page and captured in this two minute video on YouTube.

In tandem with the theme of GeoBIM, two other technology areas stood out during the meetings: Data Spaces, and the transition from OGC Web Services to OGC APIs.
Data Spaces
There has lately been a dramatic increase in the number of discussions on Data Spaces, both in and outside of OGC, as the concept becomes more commonplace in European projects and policy. As per the European Union Data Spaces Support Centre, a Data Space is defined as “an infrastructure that enables data transactions between different data ecosystem parties based on the governance framework of that data space.” In other words, the “space” in a Data Space defines a context for which the data are useful: a container, governance, and access. Given the ubiquitous use of geospatial data, directly and indirectly, an understanding of the Data Space ecosystem may be key to participate in emerging data infrastructures.
OGC Web Services to OGC API transition
The full set of capabilities offered by the OGC Web Services Standards (e.g., Web Map Service (WMS), Web Feature Service (WFS), etc.) is now reflected in OGC API Standards that have either been published, are approaching final approval vote, or are being actively developed. Over the coming months, OGC will establish a process and resources to aid in the transition to the more modern Standards, while ensuring that the user community recognizes that the legacy web services are still functional and valuable.
Friso Penninga, CEO of Geonovum, opens the week with an introduction to Geonoum and Delft. Opening Session
The week opened with a welcome from Friso Penninga, CEO of Geonovum, who outlined not only the work of Geonovum, but also the culture of Delft. Following this, Prof. Jantien Stoter of 3Dgeoinfo, TU Delft highlighted activities at TU Delft in the meeting theme area and previewed Wednesday’s GeoBIM Summit. Pieter van Teeffelen of digiGO then presented a Dutch platform for digital collaboration in the built environment. Finally, Jeroen Ticheler of GeoCat explained challenges in social welfare and the work of the GeoNetwork to address these challenges.

Next, it was time to settle a long-running dispute in OGC: who has the better chocolate, Switzerland or Belgium? After a blind taste-test, the audience voted Belgium as the winner. Is the debate now settled? Only time – and perhaps our taste buds – shall tell.

The chocolate contest was followed by a demonstration of the Netherlands Publieke Dienstverlening Op de Kaart (PDOK) geodata platform, which integrates a number of published and draft OGC API Standards.

Special tribute was then paid to two instrumental figures in OGC’s history who passed away in November 2023: Jeff de la Beaujardiere (OGC Gardels and Lifetime Achievement Awards recipient) and Jeff Burnett (former OGC Chief Financial Officer).
Prof. Jantien Stoter of 3Dgeoinfo, TU Delft, offered a preview of Wednesday’s GeoBim Summit during the Opening Session. Today’s Innovation, Tomorrow’s Technology, and Future Directions
As always, the popular Today’s Innovation, Tomorrow’s Technology, and Future Directions session runs unopposed on the schedule so that all meeting participants can attend. At this Member Meeting, the session was presented by Marie-Françoise Voidrot and Piotr Zaborowski of OGC’s Collaborative Solutions and Innovation Program (COSI). The session focused on several projects that OGC is participating in and are developing capabilities that will be of use to all members. Many of these projects are sponsored by the European Union to advance interoperable science and data management and are supporting OGC resources such as the OGC RAINBOW registry, GeoBIM integration, and learning and developer resources, such as the Location Innovation Academy.
OGC Members can access the presentations and a recording from the session on this page in the OGC Portal. An overview of some of the European projects highlighted during the session, entitled European Innovation, Global Impact, was published on the OGC Blog last year.
Piotr Zaborowski, Senior Director, of OGC’s Collaborative Solutions and Innovation Program, presents some of the European Union funded projects in which OGC is involved. Meeting Special Sessions
The Land Administration Special Session was dedicated to updating OGC membership on the progress of Land Administration activities amongst members and in ISO/TC 211, where the Land Administration Domain Model (LADM) is managed. A new Land Administration Domain Model Standards Working Group (SWG) is being considered to create Part 6 of LADM: the encoding of Parts 1-5 in one or more formats. OGC Members can access the presentations and a recording here (Session 1) and here (Session 2) in the OGC Portal.

Geospatial Reporting Indicators have been discussed in the OGC Climate Resilience Domain Working Group (DWG) in the context of Land Degradation. However, the means to exchange indicator information reporting the degree of land degradation (or influencing factors) is not standardized in the community. OGC members are therefore proposing a new SWG to develop such standardized reporting indicators, possibly as extended functionality of work in Analysis Ready Data (ARD). OGC Members can access the presentations and a recording on this page in the OGC Portal.

An ad hoc session on Geospatial Data Requirements was held to assess the chartering of a new SWG. The purpose of this proposed SWG is to develop a Standard for describing what geospatial data a project or task needs to collect, store, analyze, and present to achieve the project objectives. OGC Members can access the presentations and a recording on this page in the OGC Portal.

The OGC Europe Forum met on Tuesday with presentations focused on Data Spaces: understanding the European Commission principles of data spaces and how OGC members can engage in the topic. The Forum featured speakers from the International Data Spaces Association (IDSA), ISO/TC211, and the European Commission’s Joint Research Centre (JRC) as well as an open panel discussion. OGC Members can access the presentations and a recording on this page in the OGC Portal.
Peter van Oosterom, from TU Delft and the co-chair of the OGC Land Administration DWG, presents during the Land Administration Special Session.
The Observational Data Special Session was organized to identify the various OGC Working Groups that are building Standards or assessing the collection & use of observational data. The session clarified the commonalities between these WGs so they can be considered in future development of observational data Standards. OGC Members can access the presentations and a recording on this page in the OGC Portal.

Two sessions were held to discuss and prioritize the next steps for OGC activities concerning standardization in the Built Environment. The first of these sessions focused on the future development of the LandInfra suite of Standards: whether priority should be made on new encodings, new Parts, or other tasks. OGC Members can access the presentations and a recording on this page in the OGC Portal.

The second Built Environment session considered the topic of what Urban Digital Twins mean to OGC. Presentations on human engagement as sensors and the place for digital twins in data spaces were followed by a preview of the OGC Urban Digital Twins Discussion Paper and a panel of OGC specialists to discuss where Urban Digital Twins are most important in OGC. OGC Members can access the presentations and a recording on this page in the OGC Portal.

The public GeoBIM Summit emphasized the theme of this meeting: there is a great amount of continuity between the geospatial and Building Information Modeling (BIM) communities and their respective technologies and practices. Numerous rapid presentations highlighted activities using OGC and BIM Standards and use-cases for interoperability. OGC Members can access the presentations and a recording on this page in the OGC Portal. Presentations and recordings will soon be made available to the public on the GeoBIM Summit event page.

The Quantum Computing ad hoc session included open discussion from OGC Members working with or researching the application of quantum computing technology on geospatial issues. Future ad hoc meetings are planned to move towards the development of an OGC Quantum Computing Working Group.
Closing Plenary
The Closing Plenary normally includes two sessions: an open discussion of Important Things suggested by members, followed by motions, votes, and presentations from members to advance the work of the Consortium. However, with the Member Meeting being compressed down to four days (as Friday was a regional holiday) the Important Things discussion was not held. As such, I opened the Closing Plenary with a rapid, 7-minute summary of the entire meeting week, which included Slides and content from a large number of the week’s Working Group sessions, available to OGC Members on this page in the OGC Portal. The Closing Plenary included a record number of motions for votes on new Standards, highlighting the very productive activities of OGC members in recent months.
Thank you
Our 128th Member Meeting was our biggest yet. As always, it’s a pleasure to see hundreds of OGC Members get together to discuss, collaborate, and drive technology and standards development forward. Once again, a sincere thank you to our members for investing their time and energy, as well as their dedication to making OGC the world’s leading and most comprehensive community of location experts.

Be sure to join us at Centre Mont-Royal in Montreal, Canada, June 17-21, 2024, for our 129th Member Meeting. Registration is open now on ogcmeet.org. Sponsorship opportunities remain available – contact OGC for more info.
To receive a digest of the latest OGC news in your inbox every two weeks, be sure to subscribe to the OGC Newsletter.

The post A recap of the 128th OGC Member Meeting, Delft, The Netherlands appeared first on Open Geospatial Consortium.

sur Mappery: Floor Puzzle Map

Publié: 17 April 2024, 11:00am CEST

Erik shared this great puzzle map.

“100 years of #RotaryInternational in the Netherlands celebrated with a biking marathon for charity through the country. Today”
MapsintheWild Floor Puzzle Map

sur The 2024 Cicadapocalypse

Publié: 17 April 2024, 9:21am CEST par Keir Clarke

2024 is set to see the emergence of two large periodical cicada broods. Both Brood XIX (13-year cicada) and Brood XIII (17-year cicada), are expected to emerge together in 2024 for the first time since 1803. This double emergence has been nicknamed a "cicada-geddon" by some.Periodical cicadas are native to eastern North America. They spend most of their lives underground as nymphs, feeding

16 April 2024
sur Mappery: Peaks Island Cooler

Publié: 16 April 2024, 11:00am CEST

Doug shared this “Map of Peaks Island keeping my hands warm and my beer cool.”
MapsintheWild Peaks Island Cooler

sur Backdrop - the Ultimate Challenge

Publié: 16 April 2024, 6:30am CEST par Keir Clarke

Backdrop Backdrop is a map based game which is somewhat similar to the very popular GeoGuessr game. However in Backdrop instead of Google Maps Street View images you have to identify the locations depicted in famous paintings by some of history's greatest artists.In GeoGuessr you can stroll around in Street View to pick-up clues as to the location that you have been dropped in. In Backdrop if
sur Spikkin Scots

Publié: 16 April 2024, 2:00am CEST par Keir Clarke

The Shetland Dialect map allows you to listen to examples of the Shetland Dialect spoken across the Shetland Isles. The Shetland Isles are the northernmost region of the United Kingdom, Shetland, positioned between Orkney, the Faroe Islands, and Norway. Due to the isolated geography of the Shetland Isles the Shetland dialect (also called Shetlandic or auld Shetland) has continued to

sur Paul Ramsey: Cancer 3

Publié: 16 April 2024, 2:00am CEST

A common refrain on my Facebook cancer support groups is that the first months after diagnosis can be among the most stressful. You know the least about the actual extent of your condition, but you simultaneously know for sure that your life is going to change a great deal, starting now.

It is also the first time for grieving.

In the worst case it is grieving actual mortality, the very real threat of the end. But even in a relatively low impact diagnosis like my (current) one, there is grief. It is the grief of lost futures, lost plans, lost self-image.

I am a person who runs and climbs and rows and goes on long walks and travels and teaches and speaks publicly. At least, I was. If all goes according to plan, there will eventually be a new me, who does some or many of those things. Maybe not all of them anymore, there is no predictability or control.

Last Christmas I took my family to Rome over the holidays. “No time like the present!” I said, little knowing how apt that would be. I’m glad for everything I have done with my family. Climbing mountains, scaling cliffs, travelling afar, and even the predictable summer trips to the beach.

Some of these adventures were quite hard, and in the moment I wondered to myself “what the heck were you thinking?” In the end, I regretted none of it, and we all have lifelong memories we share.

Before she was killed by cancer, Amy Ettinger wrote:

I’ve always tried to say yes to the voice that tells me I should go out and do something now, even when that decision seems wildly impractical … Money always comes back, but if you miss out on an experience, the opportunity may never come back.

I am trying to pack as much climbing, and eating out, and walks to the cafe, and evening date nights into my life as I can, before the start of treatment. It’s too late for anything big, but these are little things that bring me joy that may become harder to do, after.

My surgery date is set now, and the procedure will mark an abrupt decline and then the start of a long slow climb back up to whatever “new normal” my body can fashion from my reconfigured plumbing. Some people have great results, some people have terrible ones.

As always, there’s no way to know, the grey area is omnipresent, which is perhaps why I sound so morose.

Talk to you again soon, inshalla.
15 April 2024
sur Sean Gillies: Bear training weeks 1-8

Publié: 15 April 2024, 11:28pm CEST

The first quarter of my season has been challenging. I've had to deal with injuries and other niggles, and I'm just starting to feel better when I run. Moving forward on fitness while not being able to run very much has been an interesting problem to work on.

As I mentioned in Preason running I started my 8 week block of interval workouts with nagging knee pain. This pain continued for 6 weeks. I dealt with it by alternating outdoor runs with low-impact sessions on an elliptical or stair-stepper machine. I did one outdoor session of hill intervals and one indoor session of stair-stepper intervals every week. By the end of the block, I was doing 36 minutes of hard uphill running, and 4 hours of easier running or stepping in a week. It's not where I want to be. At least I didn't have to skimp on the hard intervals. I'm satisfied with doing as much hard running as my knee allowed, and enjoy feeling more fit.

At the end of last year, I was determined to get some physical therapy and rehabilitate my ankles and feet. I've been visiting a local clinic once a month and have been diligent about doing the recommended exercises. The therapist says that I have good range of motion in my ankles, though there is an imbalance; my right ankle has excellent mobility while the left is only better than average. My bigger problem, in the therapist's view, was that my toes and feet are weak. I needed to build muscle so that I can do toe stands easily and lift my arches. So, I've been going to the gym to build muscle three times a week. I do sets of back squats (5 x 5) for overall strength, and then do sets (3 x 10) of single-leg calf raises on a step with a kettlebell, single-leg squats with toe taps using a barbell and band around my thighs, and single-leg deadlifts with dumbbells. The Three Amigos, as I've been calling these single-leg exercises, have been working for me. My feet and lower legs are stronger and their imbalances are getting ironed out. I feel almost equally good with the deadlifts now, wobbling just one time out of ten, at most, on my left leg. The therapist has me progressing to single-leg jumping now, and I'm feeling better balance with the new exercises, too.

Consistent strength training, conservative running, and changing the way I sit at work seem to have let my knee recover. I'm standing, sitting on a stool, and reclining more when I work, using a conventional office chair less, and at maximum height when I do.

A radiology visit in December revealed that I'm developing a bone spur on my right heel. I wonder if this is yet another symptom of imbalance in my feet and legs, more stress on my right foot caused by favoring my weaker left? I'm getting some consultation on this and meanwhile am icing regularly. Two weeks ago I had to stop running for 3 days to treat aggravation of my right sciatic nerve. It was a good reminder to be more diligent about stretching and foam rolling. Otherwise, I'm doing pretty well. Heart palpitations are behind me. I'm eating and sleeping well, keeping sinus infections at bay, and enjoying longer days and generally nice spring weather.

I'm grateful to be able to continue training and am looking forward to a productive block of tempo running.
sur Mappery: Can you guess where this fingerpost is?

Publié: 15 April 2024, 12:00pm CEST

Harel Dan shared this pic with me. Can you guess where it is? Scroll down to find out.

Harel explained “The uniquely American passion for copying other placenames from every corner of the world, led to there being all these places within a few hundred miles of each other in the state of Maine. Someone was clever enough to make a tourist trap out of it.”
MapsintheWild Can you guess where this fingerpost is?

sur GeoGuessr for Art

Publié: 15 April 2024, 8:09am CEST par Keir Clarke

Calling all art sleuths and geography buffs! There's a new game in town that will test your knowledge of both the artistic and the actual world. Buckle up, because Backdrop is here to take you on a virtual journey through the works of the world's most famous artists.Inspired by the wildly popular GeoGuessr, Backdrop throws you into the heart of stunning landscapes and iconic cityscapes, all

14 April 2024
sur Mappery: Compass Coffee

Publié: 14 April 2024, 12:00pm CEST

Another one from Erik’s US trip

I know that some will complain about the cardinal points not being a map but we have had them before and if you want to go ultra geek you could probably visualise a country outline in a weird projection in the coffee.
MapsintheWild Compass Coffee
sur Paul Ramsey: Cancer 2

Publié: 14 April 2024, 2:00am CEST

Before I joined the population of fellow cancer travellers, I had the same simple linear understanding of the “process” that most people do.

You get diagnosed, you get treatment, it works or it doesn’t.

What I didn’t appreciate (and this will vary from cancer to cancer, but my experience is with colorectal) is how little certainty there is, and how wide the grey areas are.

Like, in my previous post, I said I was “diagnosed” with cancer. Which maybe made you think I have it. But that’s not how it works. I had a colonoscopy, and a large polyp was removed, and that polyp was cancerous, and a very small part of it could not be excised. So it’s still in me.

Do I have cancer? Maybe! I have a probability of having live cancer cells in me that is significantly higher than zero. But not as high as one.

How bad is what I have? This is also a game of probabilty. Modern technology can shave off the edges of the distribution, but it can’t quite nail it down.

A computed tomography (CT) scan didn’t show any other tumors in my body, so that means I probably don’t have “stage 4” (modulo the resolution of the scan), which is mostly incurable (though it can be manageable), where the cancer has managed to spread outside the colon.

An MRI didn’t show any swollen lymph nodes, which means I maybe do not have “stage 3”, which requires chemotherapy, because the cancer has partially escaped the colon. But MRI results are better at proving rather than disproving nodal involvement and people report having surgical results that run counter to the MRI all the time.

That leaves me (theoretically) at “stage 2”, looking at a surgical “cure” that involves removing the majority of my rectum and a bunch of lymph nodes. At that point (after the major life-altering surgery!) the excised bits are sent to a pathologist, and the probability tree narrows a little more. Either the pathologist finds cancer in the nodes (MRI was wrong), and I am “upstaged” to stage 3 and sent to chemotherapy, or she doesn’t and I remain a stage 2 and move to a program of monitoring.

In an exciting third possibility, the pathologist finds no cancer in the lymph nodes or the rectum, which means I will have had major life-altering surgery to remove… nothing dangerous. My surgeon says I should find this a happy result (no cancer!) which is probably because he’s seen so many unhappy results, but it’s a major surgery with life-long side effects and I would do almost anything to not have to have it.

Amazingly, despite our modern technology there’s just no way to know for sure if there are still live cancer cells in me short of taking the affected bits out and doing the pathology. Or waiting to see if something grows back, which is to flirt with a much worse prognosis.

Monitoring will be regular blood tests, annual scans and colonoscopies for several years, as the probability of recurrence slowly and asymptotically moves toward (but never quite arrives at) zero. And all those tests and procedures have their own error rates and blind spots.

There are no certainties. All the measuring and cutting and chemicals, and I will still have not driven the cancer entirely out, it will stubbornly remain as a probability, a non-zero ghost haunting me every year of the rest of my hopefully long life.

And of course worth mentioning, I am getting the snack-sized, easy-mode version of this experience! People in stage three or stage four face a probability tree with a lot more “and then you probably die in a few years” branches, and the same continuous reevaluation of that tree, with each new procedure and scan, each new discovery of progression or remission.

Talk to you again soon, inshalla.
13 April 2024
sur Mappery: The Pieces of London

Publié: 13 April 2024, 11:00am CEST

We all love a map jigsaw, well at least Harry Woods and I do. Here’s Harry making a jigsaw map of London that was made from OpenStreetMap.

I guess you could make a jigsaw of your favourite location, could be one for my friends at SplashMaps.

MapsintheWild The Pieces of London

sur The AI Music Map

Publié: 13 April 2024, 10:07am CEST par Keir Clarke

Over the last few days my Twitter feed has been lit up by people sharing the songs that they have created on Udio. For the one or two cave dwellers out there who have only just installed spelunking wi-fi, Udio is an AI-powered music generation tool which allows users to create songs from a text prompt. The tool allows you to create tunes with customized lyrics, vocal styles, and musical

12 April 2024
sur gvSIG Batoví: Participante en concurso Proyectos de Geografía con estudiantes y gvSIG Batoví seleccionado para el programa ICT Training for Colombian Teachers 2024

Publié: 12 April 2024, 9:24pm CEST

logo del proyecto
Es con gran placer que informamos que el equipo ganador por Colombia de la edición 2023 del concurso Proyectos con Estudiantes y gvSIG Batoví fue seleccionado para el Programa de entrenamiento en el uso pedagógico de las TIC – Convocatoria 2024

Como resultado, el proyecto viaja a Corea del Sur.
Postulación al programa ICT Training for Colombian Teachers 2024: Estrategia desarrollo sostenible, turismo y cartografia en Choachí.
Nos llena de orgullo saber que la iniciativa del Curso – Concurso Geoalfabetización mediante la utilización de Tecnologías de la Información Geográfica (que en el año 2023 tuvo por primera vez participantes fuera de Uruguay) permita que un proyecto desarrollado en Colombia (y que ameritó haber sido declarado ganador del concurso) dé a conocer la experiencia aún más internacionalmente.
el equipo colombiano ganador con los diplomas del concurso Proyectos de Geografía con estudiantes y gvSIG Batoví
Felicitamos a la profesora Astrid Corredor por el logro obtenido. Estos resultados son los que nos convencen cada día de continuar con la iniciativa del curso-concurso para seguir difundiendo el uso de las Tecnologías Libres de Información Geográfica como herramientas de enseñanza y de generación de conocimiento.
vista del municipio de Choachí desde el páramo
sur Mappery: Great Lakes Drainage Basin Map Umbrella

Publié: 12 April 2024, 11:00am CEST

Matt Malone was one happy geographer when he got this umbrella for Christmas.
MapsintheWild Great Lakes Drainage Basin Map Umbrella

sur The 2024 Submarine Cable Map

Publié: 12 April 2024, 8:36am CEST par Keir Clarke

Every year the telecommunications company Telegeography releases a new, updated version of its Submarine Cable map. This map shows all the undersea telecommunication cables which carry data around the world.The 2024 Submarine Cable Map is now available. Subsea cables carry telecommunication signals under the oceans, communicating information between different countries and regions of the

11 April 2024
sur Mappery: As Strong as Worcester Sauce

Publié: 11 April 2024, 11:00am CEST

Harry Wood spotted this on the Archway Road in north London. I’m guessing that this is a removal van with some strong people but the connection to Worcester Sauce baffles me
MapsintheWild As Strong as Worcester Sauce

sur Mapping Conflicts Around the World

Publié: 11 April 2024, 2:00am CEST par Keir Clarke

In 2024 the specter of military conflicts haunts the world. Israel is engaged in conflict in Gaza, Russia continues its illegal invasion of Ukraine and the Syrian civil war is now in its thirteenth year. It should be a matter of extreme shame that there are so many organizations who feel the need to publish interactive maps dedicated to tracking the progress of military action around the globe.

10 April 2024
sur Paul Ramsey: Cancer 1

Publié: 10 April 2024, 6:00pm CEST

A little over a month ago, three days after my 53rd birthday, I received a diagnosis of rectal cancer. Happy birthday to me.

Since then, I have been wrestling with how public to be about it. I have a sense that writing is good for me. But it also keeps like milk. I wrote most of this a couple weeks ago and my head space has already evolved.

So writing like this is mostly a work of self-absorption (I’m sure you can forgive me) but hopefully it also helps to raise awareness amongst the cohort of people who might know me or read this.

Colorectal cancer rates are going up, and the expected age of occurance is going down. Please get screened. No matter your age, ask your clinician for a “FIT test”. If you’re over 45, just ask for a colonoscopy, the FIT test isn’t perfect.

I have a pretty good prognosis, mostly because my case was caught by screening, not by experiencing symptoms bad enough to warrant a trip to the doctor. Most of the people who get diagnosed after showing symptoms have it worse than I, and will have a longer, harder road to recovery. Get screened.

Our language of cancer borrows a bit from the language of contagion. I “got” cancer. It’s not quite a neutral description, there’s a hint of agency in there, maybe I did something wrong? This article drives me crazy, the author “went vegan and became a distance runner” after his father died of colorectal cancer.

Sorry friend, cancer is not something you “get”, and it’s not something you can opt out of with clean living. It’s something that happens to you. Take it from this running, cycling, ocean rowing, rock climbing, healthy eater – driving down the marginal probability of cancer (and heart disease (and depression (and more))) with exercise and diet is its own reward, but you are not in control. When cancer wants you, it will come for you.

This is why you should get screened (right?). It’s the one way to proactively protect yourself. The amazing thing about a colonoscopy is, not only can it detect cancer, but it also prevent it, by removing pre-cancerous polyps. It’s possible that screening could have prevented my case, if I had been screened a few years earlier.

I am now a denizen of numerous Facebook fora for fellow travellers along this life path, and one of the posts last week asked “what do you think cancer taught you”? I am a little too early on the path to write an answer myself, but one woman’s answer struck me.

She said it taught her that control is an illusion.

Before, I had plans. I could tell you I was going to go places, and do things, and when I was going to do them, next month, next season, next year. I was in control. Now, I can tell you what I will be doing next week. Perhaps. The rest is in other hands than mine.

Talk to you again soon, inshalla.
sur Mappery: The World in a Coffee Shop

Publié: 10 April 2024, 11:00am CEST

Irdi spotted this in the STOA coffee shop in Tirana. I’m not sure what the map is showing, but it’s fun
MapsintheWild The World in a Coffee Shop

sur Canada's Hidden Subterranean Rivers

Publié: 10 April 2024, 10:35am CEST par Keir Clarke

Canadian cities, like many cities around the world, have a history of hiding waterways underground. As cities grow rivers can become obstacles to the movement of people, can be seen as wasted real-estate, and historically (when cities had poor sanitation) they often became open sewers. For these reasons cities often culvert and divert rivers underground.In Discover Where Ancient Rivers Flow CBC

09 April 2024
sur Mappery: The Luggage That You Just Have to Have

Publié: 9 April 2024, 11:00am CEST

Raf spotted this beautiful luggage in a store in Takeshita Street in Tokyo
MapsintheWild The Luggage That You Just Have to Have

sur 15 Minute US Cities

Publié: 9 April 2024, 9:59am CEST par Keir Clarke

The idea of the 15 Minute City is that urban living is much more enjoyable and sustainable when all our essential needs are close by. These essential needs include such things as grocery stores, health care facilities, cultural attractions, transit stops, educational facilities and leisure activities. Individuals living in a 15 Minute neighborhood should be able to access all these essential

sur OPENGIS.ch: Status of Cloud Optimized Geospatial Formats

Publié: 9 April 2024, 7:04am CEST

Cloud-optimized formats are changing how we handle geospatial data, making it easier to access and work with large datasets directly in the cloud. These formats reduce the need to download entire datasets, facilitating quicker and more focused data analysis and visualization. For those interested in the specifics of these advancements, our recent Cloud Optimized Geospatial Formats – Status Report, offers an introduction into the topic, recommendations for usage and an overview of promising formats.

Within this project, we also released a sample of various tiles downloaded from swissSURFACE3D as a single cloud optimized point cloud file and made it accessible also via a potree powered web viewer that demonstrates how one single file can be used for visualization in the web and making accessible for applications like QGIS and QField via the direct access URL .

I would like to thank GeoStandards.ch and SGS to allow us working on this.

We’re keen to hear from you as well. Please share your experiences or additional insights and formats in the comments.
08 April 2024
sur Mappery: The World of Top Gear

Publié: 8 April 2024, 11:00am CEST

Nick Duggan spotted this at Bealieu. A lot of car wrecks there.
MapsintheWild The World of Top Gear
sur longwayaround.org.uk: Sorting lines in (Neo)Vim

Publié: 8 April 2024, 9:45am CEST

The built-in Vim :sort command supports sorting either all lines in a buffer or a range of lines.

For example to sort a range of lines it's possible to visually select those lines then run :sort.

Help docs can be accessed via :help :sort and can be viewed online via …

sur Live from the Sundhnúkur Eruption

Publié: 8 April 2024, 9:08am CEST par Keir Clarke

The Reykjanes peninsula in Iceland has been experiencing a period of heightened volcanic activity since December 2023. This follows an increase in seismic activity that began in late 2019. The most recent eruption started on March 16th in Sundhnúkur near the town of Grindavík.You can view a live webcam of volcanic activity in Sundhnúkur on Live from Iceland. This webcam shows a live

07 April 2024
sur Mappery: Giant Relief Map, Why Not?

Publié: 7 April 2024, 11:00am CEST

Matt Malone spotted this relief map at Waterton Glacier in Montana. He said “”Do you want your pic taken by the giant map?” isn’t really even a legit question for a geographer.”
MapsintheWild Giant Relief Map, Why Not?
06 April 2024
sur Mappery: L’aéropostale

Publié: 6 April 2024, 12:00pm CEST

As I get one year wiser, I want to share something from my past. I used to live in Toulouse, in the southwest part of France. Property development is huge there, but sometimes, in the middle of the new neighbourhood, we keep remains of the past. The map in Montaudran shows the former starting point of the postal service l’aéropostale. The short part of the runway is preserved during this ongoing Uban renewal.

The area will host the Aeroposace campus, which will be the future base of the Galileo satellite navigation system.

Below is a picture of the runway from Wikipedia:

And the next one taken in 2023

MapsintheWild L’aéropostale

sur The D-Day Memorial Map

Publié: 6 April 2024, 8:52am CEST par Keir Clarke

KilRoyTrip is an interactive map of World War II memorials in Normandy. It provides a fantastic guide to anyone visiting the region who is interested in the D-Day landings and the liberation of France.The Allied invasion of Normandy on D-Day Tuesday, 6 June 1944 was the largest seaborne invasion in history. On D-Day the Allied forces from the United States, Britain, Canada, and other countries
05 April 2024
sur The US Foreign Assistance Map

Publié: 5 April 2024, 11:16am CEST par Keir Clarke

The US government's Foreign Assistance website provides detailed information and data on U.S. foreign assistance programs. The website serves as a central platform for transparency and accountability in U.S. foreign aid efforts. It also provides a fascinating insight into the shifting geo-political ambitions of the United States over the last 75 years.The Foreign Assistance Dashboard reveals

sur Mappery: Immersive Background

Publié: 5 April 2024, 11:00am CEST

Raf shared this “Nice use of maps as background at Sorolla immersive exhibition at Casa Amatller in Barcelona”
MapsintheWild Immersive Background
04 April 2024
sur Mappery: Bliss Lane

Publié: 4 April 2024, 12:00pm CEST

Elizabeth sent me these pics of the signs for Bliss Lane in Old Tapovan, you may need to zoom in on the image below to see all of the detail. There is a helpful arrow pointing you towards the Ganges

Makes me want to go back to India
MapsintheWild Bliss Lane
sur OPENGIS.ch: QField 3.2 “Congo”: Making your life easier

Publié: 4 April 2024, 9:58am CEST
Focused on stability and usability improvements, most users will find something to celebrate in QField 3.2
Main highlights
This new release introduces project-defined tracking sessions, which are automatically activated when the project is loaded. Defined while setting up and tweaking a project on QGIS, these sessions permit the automated tracking of device positions without taking any action in QField beyond opening the project itself. This liberates field users from remembering to launch a session on app launch and lowers the knowledge required to collect such data. For more details, please read the relevant QField documentation section.

As good as the above-described functionality sounds, it really shines through in cloud projects when paired with two other new featurs.

First, cloud projects can now automatically push accumulated changes at regular intervals. The functionality can be manually toggled for any cloud project by going to the synchronization panel in QField and activating the relevant toggle (see middle screenshot above). It can also be turned on project load by enabling automatic push when setting up the project in QGIS via the project properties dialog. When activated through this project setting, the functionality will always be activated, and the need for field users to take any action will be removed.

Pushing changes regularly is great, but it could easily have gotten in the way of blocking popups. This is why QField 3.2 can now push changes and synchronize cloud projects in the background. We still kept a ‘successfully pushed changes’ toast message to let you know the magic has happened

With all of the above, cloud projects on QField can now deliver near real-time tracking of devices in the field, all configured on one desktop machine and deployed through QFieldCloud. Thanks to Groupements forestiers Québec for sponsoring these enhancements.

Other noteworthy feature additions in this release include:
- A brand new undo/redo mechanism allows users to rollback feature addition, editing, and/or deletion at will. The redesigned QField main menu is accessible by long pressing on the top-left dashboard button.
- Support for projects’ titles and copyright map decorations as overlays on top of the map canvas in QField allows projects to better convey attributions and additional context through informative titles.
Additional improvements
The QFieldCloud user experience continues to be improved. In this release, we have reworked the visual feedback provided when downloading and synchronizing projects through the addition of a progress bar as well as additional details, such as the overall size of the files being fetched. In addition, a visual indicator has been added to the dashboard and the cloud projects list to alert users to the presence of a newer project file on the cloud for projects locally available on the device.

With that said, if you haven’t signed onto QFieldCloud yet, try it! Psst, the community account is free

The creation of relationship children during feature digitizing is now smoother as we lifted the requirement to save a parent feature before creating children. Users can now proceed in the order that feels most natural to them.

Finally, Android users will be happy to hear that a significant rework of native camera, gallery, and file picker activities has led to increased stability and much better integration with Android itself. Activities such as the gallery are now properly overlayed on top of the QField map canvas instead of showing a black screen.

sur The Drug Map of Europe

Publié: 4 April 2024, 8:49am CEST par Keir Clarke

Cocaine use has been increasing rapidly in Europe over the last seven years. Europeans are also taking more MDMA and ketamine. Every year the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) undertakes an annual wastewater drug survey in order to evaluate trends in the consumption of 'recreational' drugs. By analyzing residues of different recreational drugs in sewage the EMCDDA

sur GeoServer Team: How to style layers using GeoServer and QGIS

Publié: 4 April 2024, 2:00am CEST
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 | X )
Using GeoServer and QGIS to style a layer
In this session, we will explore “How to style layers using GeoServer and QGIS” to produce beautiful maps. If you want to access the complete tutorial, simply click on the link

Introduction
Geospatial data has no intrinsic visual component and it must be styled to be visually represented on a map. By default, GeoServer uses a markup language called Styled Layer Descriptor (SLD) to define styling rules for displaying data. SLD is an XML-based language that allows users and software to control the visual portrayal of geospatial data. This language ensures that clients and servers can both understand how to render the data visually.

Note. This video was recorded on GeoServer 2.20.0, which is not the most up-to-date version. Currently, versions 2.24.x and 2.25.x are supported. To ensure you have the latest release, please visit geoserver.org and avoid using older versions of GeoServer.
Add a Style
To add a new style, navigate to the Data > Styles page, then click on the Add a new style link. You will be redirected to the new style page, which is the same as the Style Editor Data tab.

This tab includes basic style information, the ability to generate a style and legend details. It has some mandatory basic style information, such as:
- Name: It’s the name of the style and it must be a unique name.
- Workspace: Styles can be inside workspaces which causes restrictions. In other words, the styles in a workspace can only be assigned to the services of that, and other services outside it, cannot use these styles. Styles also can be “global” or no workspace, so they don’t have any restrictions and services can be used for all suitable styles.
- Format: Default options are SLD and ZIP formats. To use other formats such as CSS and YSLD, you should download and install extensions. Make sure to match the version of the extension to the version of the GeoServer.
The “Style Content” area provides options for creating, copying, or uploading a style. It has three options:
- Generate a default style: Choose a generic style based on geometry such as Point, Line, Polygon, Raster, or Generic and click the Generate link when selected.
- Copy from existing style: Select an existing style from GeoServer and copy its contents to the current style. Note that not all styles may be compatible with all layers. Click the Copy link when selected.
- Upload a style file: Press the Browse button to locate and select a plain text file from your local system to add as the style. Click on the Upload link to add the style file.
The Legend area allows you to preview the legend for the style. Click on the Preview legend link to generate a legend based on the current settings.

At the bottom of the Style Editor page, you’ll find several options: Validate, Apply, Save and Cancel. During editing and especially after editing is complete, you can check the validation of the syntax by pressing the Validate button at the bottom. If any validation errors are found, a red message is displayed, and if no errors are found, a green message is displayed. To make changes, press the Apply button to access all the tabs and finally press the Save button.

After having created the style, it’s time to apply it to the layer. To do it, follow these steps:
- Navigate to the Data > Layers page then click on the layer’s name link to open the layer’s properties form. Switch to the Publishing tab.
- Go to the Style section and from the Default Style list, select the suitable style, then press the Save button.
- Navigate to the **Data > Layer Preview ** page and open up OpenLayers preview for the layer.
Edit a Style
On the Styles page, click on the style name to open the Style Editor. The Style Editor page presents the style definition and contains four tabs with many configuration options: Data , Publishing , Layer Preview and Layer Attributes.
- Data tab: The Data tab includes basic style information, the ability to generate a style, and legend details. Moreover, it allows for direct editing of style definitions at the bottom, with support for line numbering, automatic indentation, and real-time syntax highlighting. You can switch between tabs to create and edit styles easily and can adjust the font size of the editor.
- Publishing tab: This tab shows all layers available on the server, along with their default style and any additional styles they may have. You can easily see which layers are linked to the current style by checking a box in the table.
- Layer Preview tab: This tab enables you to preview and edit the current style of any layer without switching pages. You can easily select the desired layer to preview and fine-tune styles to continuously test visualization changes.
- Layer Attributes tab: The Layer Attributes tab shows a list of attributes for the selected layer, making it easy to see and work with the attributes associated with the layer. This can help in deciding which attribute to use for labeling or setting up scale-dependent rules.
Creating SLD styles by QGIS
QGIS has a style editor for map rendering with various possibilities, including the export of raster styles to SLD for use in GeoServer. For versions before 3.4.5, a plugin called SLD4raster is required for exporting SLD for use in GeoServer.

Here’s a simple guide to styling a vector layer in GeoServer:
- Open QGIS (minimum version 3.0) and loading the vector dataset into your project.
- Double click on the layer to open the Properties dialog and navigate to the Symbology page.
- Select a Graduated rendering, choose the desired column, and press the Classify button.
- Return to the Properties dialog and go to the bottom of the Styles page. Select Style > Save Style.
- Save the style in SLD format and choose the location for the file.
- Use the Choose File button to locate your exported file in the folder and select it.
- Click on the Upload link to load the file into the editor form.
- Press the Validate button to ensure there are no errors, then press the Save button.
- Switch to the Publishing tab and choose either Default or Associated checkbox to apply the new style to the desired layer.
Here is a step by step guide to style a raster layer for GeoServer:
- Begin by opening QGIS with a minimum version of 3.4.5.
- Load the raster layer into your project.
- Double click on the layer to access the Properties and go to the Symbology tab.
- Select Singleband pseudocolor as the Render type, choose Linear method for Interpolation, and select a desired Color ramp.
- Press the Classify button to create a new color classification, then press the Apply button to save this classification. At the bottom-left of the page, choose Style and press Save Style button.
- Choose a name and export it in SLD format to your preferred location.
- In GeoServer, navigate to the Style section and click on Add a new style to open the editor form.
- Use the Choose File button to locate your exported file in the folder and select it.
- Click on the Upload link to load the file into the editor form.
- Validate the style by pressing the Validate button to ensure there are no errors, then press the Save button.
- Navigate to Data > Layers page and open the layer’s properties form by clicking on the layer’s name. Switch to the Publishing tab.
- Set the style as Default Style and press the Save button.
- Finally, in the Layer Preview section, open the OpenLayers preview for the raster layer.
Remove a Style
To remove a style, click on the checkbox next to the style. Multiple styles can be selected at the same time. Press the Remove selected style(s) button at the top of the page. You will be asked for confirmation and press the OK button to remove the selected style(s).

In this session, we explored “How to style layers using GeoServer and QGIS” to produce beautiful maps. If you want to access the complete tutorial, simply click on the link
03 April 2024
sur Mappery: These Tourists Won’t Get Lost

Publié: 3 April 2024, 12:00pm CEST

Reinder shared this. Spotted outside the International Peace Palace in the Hague
MapsintheWild These Tourists Won’t Get Lost

sur Four Free Alternatives to GeoGuessr

Publié: 3 April 2024, 10:58am CEST par Keir Clarke

I am a huge fan of GeoGuessr, but unfortunately without becoming a paid subscriber it is now a very limited game. I don't blame GeoGuessr for developing its subscription model. The Google Maps API isn't cheap and I'm sure Google sends GeoGuesssr huge invoices every month. However that does mean there is a huge potential market for a free Street View game. A market that OpenGuessr now hopes to

02 April 2024
sur Mappery: Cambridge, Massachusetts

Publié: 2 April 2024, 12:00pm CEST

Marc Prioleau spotted this in the Marriott in Cambridge Massachusetts. It’s a different spin on the local info maps that you get in some hotels.
MapsintheWild Cambridge, Massachusetts

sur Playing Placename Detective

Publié: 2 April 2024, 10:09am CEST par Keir Clarke

The British Placenames Mapper is an interactive map which allows you to search for patterns in British placenames. The map uses 'regular expressions' to find defined text patterns within placenames. These text patterns could be prefixes used at the beginning of a name (eg 'Great' or 'Little'), suffixes used at the end of a name (eg 'ford' or 'mouth'), or even patterns that occur anywhere within a

01 April 2024
sur Mappery: Never Eat Shredded Wheat

Publié: 1 April 2024, 12:00pm CEST

Derick Rethans shared this from his travels in Oxfordshire. I love the cardinal points at the top.
MapsintheWild Never Eat Shredded Wheat
sur Mappery: IMPORTANT: Mappery Editorial Policy Changes

Publié: 1 April 2024, 11:00am CEST

Dear followers. The Mappery team have been reflecting on some of the content we have posted recently. We’re concerned that cartography is being commercially exploited in some sectors (particularly the drinks industry) with the creation of entirely fictitious maps to promote a brand. We think this is wrong and is disrespectful of the art and science of cartography.

In posting some of this content, we recognise that our promotion has contributed to this problem, and for this error in judgement we are genuinely sorry and ask for your forgiveness. In future we will only post maps that have gone wild in good faith, rather than being fictitious creations produced solely for commercial gain. Once again, sorry for our part in this. In the meantime here are some shallots that look like a contour map. (Original credit Amanda Huber)

MapsintheWild IMPORTANT: Mappery Editorial Policy Changes

sur Highly Artificial Locations

Publié: 1 April 2024, 1:04am CEST par Keir Clarke

Today, a revolutionary new AI-powered map has been released that goes beyond traditional navigation. The new map-based search engine Highly Artificial Locations leverages cutting-edge artificial intelligence to transform how users experience and interact with the world around them.Highly Artificial Locations is more than just a map; it’s an intelligent companion that empowers users to explore

31 March 2024
sur Mappery: Mapped It!

Publié: 31 March 2024, 12:00pm CEST

Matt Malone said “Gonna make a wild guess that one of my fellow surveying or GIS colleagues here in Michigan has this awesome plate that I spied recently.”

On the edge of being a Map in the Wild, no doubt some will want to draw the line somewhere else.
MapsintheWild Mapped It!

30 March 2024
sur The Easter Bunny's Egg-cellent Adventure

Publié: 30 March 2024, 11:14am CET par Keir Clarke

This year the Easter Bunny has been on a whirlwind world tour, hopping from continent to continent and hiding eggs in some of the most amazing places on Earth! Take part in the world's largest egg hunt today by visiting the Tripgeo Global Egg Hunt.Are you ready to undertake a global egg hunt? If so grab your basket and get ready to embark on a virtual adventure of some of the world's most

sur Mappery: Tad’s Montana Tablecloth

Publié: 30 March 2024, 11:00am CET

Eric Lund sent this to me, it’s a paper ‘tablecloth’ with a map of the Yellowstone area at Tad’s Montana Grill in Bozeman, Montana. Note the fruity cocktails while studying the elegant cartography.
MapsintheWild Tad’s Montana Tablecloth
29 March 2024
sur Mappery: Definitely a Well Used Map in the Wild

Publié: 29 March 2024, 11:00am CET

Another one from Javier Jimenez Shaw. “Map in Grunewald, Berlin, Germany. The point where the map is in the map (like “you are here” or “aktueller Standort”) is worn from touching it so much, that you can see the material behind the painting.
MapsintheWild Definitely a Well Used Map in the Wild
sur Oslandia: (Fr) En direct des Journées Utilisateurs QGIS-fr !

Publié: 29 March 2024, 10:19am CET

Sorry, this entry is only available in French.

sur The Islamic State Attack Map

Publié: 29 March 2024, 9:57am CET par Keir Clarke

In the last 12 months the Islamic State has claimed responsibility for 1,121 attacks around the world. Just last week the terrorist organization claimed that four of its members carried out the attack on concert goers at the Crocus City Hall, Moscow, leaving over one hundred people dead.The Islamic State Worldwide Activity Map is attempting to track IS's global activity and to make this

28 March 2024
sur Ecere Corporation receives OGC Community Impact Award

Publié: 28 March 2024, 11:43am CET par Simon Chester

The Open Geospatial Consortium (OGC) has announced Ecere Corporation, represented by Jérôme Jacovella-St-Louis, as the latest recipient of the OGC Community Impact Award. The award was presented last night at the Executive and VIP Dinner of the 128th OGC Member Meeting in Delft, The Netherlands.

The Community Impact Award is given by OGC to highlight and recognize those members of the OGC Community who, through their exceptional leadership, volunteerism, collaboration, and investment, have had a positive impact on the wider geospatial community.

Gobe Hobona, OGC Director of Product Management, Standards, commented: “Jérôme and colleagues from Ecere have been active participants of most OGC Code Sprints over the past five years, as well as contributors to several activities of Standards Working Groups. Their willingness to assist other participants during Code Sprints has helped to get many participants up to speed and to boost the work of the Code Sprints’ community of experts.

“Jérôme has also been a steadfast advocate of OGC Standards for symbology and portrayal, as demonstrated by his engagement of the cartographic community on the next generation of OGC web mapping and portrayal Standards. This engagement has facilitated the collaboration between the OGC and its partner communities in the cartographic domain.”

“Jérôme has been a key enabler for the implementation of OGC Standards,” added Joana Simoes, OGC Developer Relations. “Besides providing extremely complete implementations in GNOSIS, which can be used by others as a reference, he has always been available to help other projects – both online through Github and in-person during Code Sprints. Many OSGeo projects have improved their standards support thanks to GitHub issues filed or answered by Jérôme.”

Notably, Jérôme is also the Co-Chair of five OGC Standards Working Groups: OGC API – Common SWG, Coverages SWG, Styles & Symbology Encoding SWG, Discrete Global Grid Systems SWG, and OGC API – Tiles SWG. In addition to this, Jérôme is also Co-Editor of the OGC API – Maps, OGC API – Processes – Part 3: Workflows, OGC CDB 2.0 – Part 2: GeoPackage Data Store, and OGC API – 3D GeoVolumes Standards.

Ecere Corporation has, and continues to, make an impact within the OGC Community through their active leadership, collaboration, and engagement across numerous OGC Code Sprints, Collaborative Solutions and Innovation Program (COSI) Initiatives, Working Groups, and Member Meetings.

The OGC Community Impact award highlights the importance of collaboration, volunteering time and energy, advancing technologies and Standards, raising awareness, and helping solve critical issues across the geospatial community. Jérôme and Ecere Corporation exemplify all of these qualities in their tireless work during Code Sprints and across so many Standards Working Groups.

The post Ecere Corporation receives OGC Community Impact Award appeared first on Open Geospatial Consortium.

sur Mappery: Scotland’s Geology

Publié: 28 March 2024, 11:00am CET

I am not sure who pointed me to this magnificent geological map of Scotland which was shared by Europe Says who said “Geologically correct map of Scotland. 30 years of collecting!”
MapsintheWild Scotland’s Geology

sur The SpaceX Starlink Map

Publié: 28 March 2024, 10:13am CET par Keir Clarke

StarLinkMap is a new real-time animated map of the 5,601 satellites currently orbiting the Earth as part of Starlink's huge satellite internet constellation. Starlink's megaconstellation of satellites, built and operated by SpaceX, provides high-speed broadband to even the most remote corners of the globe. Launched in 2019, Starlink boasts over 5,000 satellites in low Earth orbit (LEO), and

27 March 2024
sur Mappery: 3D Globe Jigsaw

Publié: 27 March 2024, 11:00am CET

Javier Jimenez Shaw shared this beauty “3D globe jigsaw puzzle in my living room. 30 cm diameter. Unfortunately it is not produced anymore.” Amazing object, I have never seen anything like this before, have you?

It turns out that Ravensburger make a newer version of a 3D globe which you can buy here or from other online places that we can do without boosting
MapsintheWild 3D Globe Jigsaw

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