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#1 Sun 19 August 2018 14:13

laurent00
Participant assidu
Date d'inscription: 6 Aug 2007
Messages: 432

QGIS 2.18: macro workflow

rebonjour

avec ce même forum j'ai réussi à construire une maro pour que certaines de mes couches s'enregistrent en format CVS lors de toutes les fermetures de QGIS 2.18

Code:

import os
from qgis.core import QgsMapLayerRegistry, QgsVectorFileWriter
from datetime import datetime

layer_name1 = u'tourettes'
layer_name2 = u'alignements'
folder = u'/home/laurent/Documents/2. Ingall/IGHAZER/atlas/alignements/workflow'
encoding = 'utf-8'
suffix = datetime.now().strftime('%Y-%m-%d-%H-%M')

def closeProject():
    registry = QgsMapLayerRegistry.instance()
    layer1 = registry.mapLayersByName(layer_name1)[0]
    filename1 = layer_name1
    filename1 = os.path.join(folder, filename1 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer1, filename1, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
   
   registry = QgsMapLayerRegistry.instance()
    layer2 = registry.mapLayersByName(layer_name2)[0]
    filename2 = layer_name2
    filename2 = os.path.join(folder, filename2 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer2, filename2, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])

mais il semble que celle-çi ne fonctionne plus et à l'ouverture de mon projet j'ai cette alerte

Code:

Une erreur est survenue lors de l'exécution du code suivant:
qgis.utils.reloadProjectMacros()


traceback.print_exception() failed

Version de Python :


Version de QGIS :
3.2.1-Bonn 'Bonn', 1edf372

Chemin vers Python :

merci d'une aide

LJ

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#2 Mon 27 August 2018 12:18

MathieuR
Membre
Lieu: aix-en-provence
Date d'inscription: 16 Feb 2009
Messages: 1690
Site web

Re: QGIS 2.18: macro workflow

Bonjour,

Si vous réécrivez votre code dans la console python, cela fonctionne-t-il ?

Code:

import os
from qgis.core import QgsMapLayerRegistry, QgsVectorFileWriter
from datetime import datetime

layer_name1 = u'tourettes'
layer_name2 = u'alignements'
folder = u'/home/laurent/Documents/2. Ingall/IGHAZER/atlas/alignements/workflow'
encoding = 'utf-8'
suffix = datetime.now().strftime('%Y-%m-%d-%H-%M')

def closeProject():
    registry = QgsMapLayerRegistry.instance()
    layer1 = registry.mapLayersByName(layer_name1)[0]
    filename1 = layer_name1
    filename1 = os.path.join(folder, filename1 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer1, filename1, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
   
   registry = QgsMapLayerRegistry.instance()
    layer2 = registry.mapLayersByName(layer_name2)[0]
    filename2 = layer_name2
    filename2 = os.path.join(folder, filename2 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer2, filename2, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])

closeProject() # on exécute la commande

Personnellement, j'ai testé votre code, et étrangement, pour moi aussi, il n'y a pas d'écriture de fichier sous QGIS 2.18

J'ai testé sous QGIS 3, avec le code suivant, et ça fonctionne, par contre :

Code:

import os
from qgis.core import QgsVectorFileWriter, QgsProject, QgsCoordinateReferenceSystem
from datetime import datetime

layer_name1 = u'points'
folder = 'C:/temp/points/'
encoding = 'utf-8'
suffix = datetime.now().strftime('%Y-%m-%d-%H-%M')

def closeProject():
    layer1 = QgsProject.instance().mapLayersByName(layer_name1)[0]
    filename1 = layer_name1
    filename1 = os.path.join(folder, filename1 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer1, filename1, encoding, QgsCoordinateReferenceSystem(2154), driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
geodata au cerema et petits billets en géomatique

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#3 Mon 27 August 2018 14:17

laurent00
Participant assidu
Date d'inscription: 6 Aug 2007
Messages: 432

Re: QGIS 2.18: macro workflow

bon je regarde mieux ce soir
de mémoire sous 2.18 il fallait réouvrir 2 fois QGIS pour que le fichier se crée ...

LJ

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#4 Mon 27 August 2018 18:35

laurent00
Participant assidu
Date d'inscription: 6 Aug 2007
Messages: 432

Re: QGIS 2.18: macro workflow

en utilisant la console voici ce que cela ramène

Code:

Console Python
Utilisez iface pour accéder à l'interface de l'API QGIS ou tapez help(iface) pour plus d'informations
import os
from qgis.core import QgsMapLayerRegistry, QgsVectorFileWriter
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 91, in runcode
    exec(code, self.locals)
  File "<input>", line 1, in <module>
ImportError: cannot import name 'QgsMapLayerRegistry'
from datetime import datetime
layer_name1 = u'tourettes'
layer_name2 = u'alignements'
folder = u'/home/laurent/Documents/2. Ingall/IGHAZER/atlas/alignements/workflow'
encoding = 'utf-8'
suffix = datetime.now().strftime('%Y-%m-%d-%H-%M')
def closeProject():
    registry = QgsMapLayerRegistry.instance()
    layer1 = registry.mapLayersByName(layer_name1)[0]
    filename1 = layer_name1
    filename1 = os.path.join(folder, filename1 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer1, filename1, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
   
   registry = QgsMapLayerRegistry.instance()
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 64, in runsource
    code = self.compile(source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 168, in __call__
    return _maybe_compile(self.compiler, source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 99, in _maybe_compile
    raise err1
  File "/usr/lib/python3.6/codeop.py", line 87, in _maybe_compile
    code1 = compiler(source + "\n", filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 133, in __call__
    codeob = compile(source, filename, symbol, self.flags, 1)
  File "<input>", line 8
    registry = QgsMapLayerRegistry.instance()
                                            ^
IndentationError: unindent does not match any outer indentation level
    layer2 = registry.mapLayersByName(layer_name2)[0]
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 64, in runsource
    code = self.compile(source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 168, in __call__
    return _maybe_compile(self.compiler, source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 99, in _maybe_compile
    raise err1
  File "/usr/lib/python3.6/codeop.py", line 87, in _maybe_compile
    code1 = compiler(source + "\n", filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 133, in __call__
    codeob = compile(source, filename, symbol, self.flags, 1)
  File "<input>", line 1
    layer2 = registry.mapLayersByName(layer_name2)[0]
    ^
IndentationError: unexpected indent
    filename2 = layer_name2
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 64, in runsource
    code = self.compile(source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 168, in __call__
    return _maybe_compile(self.compiler, source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 99, in _maybe_compile
    raise err1
  File "/usr/lib/python3.6/codeop.py", line 87, in _maybe_compile
    code1 = compiler(source + "\n", filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 133, in __call__
    codeob = compile(source, filename, symbol, self.flags, 1)
  File "<input>", line 1
    filename2 = layer_name2
    ^
IndentationError: unexpected indent
    filename2 = os.path.join(folder, filename2 + '-' + suffix + '.csv')
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 64, in runsource
    code = self.compile(source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 168, in __call__
    return _maybe_compile(self.compiler, source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 99, in _maybe_compile
    raise err1
  File "/usr/lib/python3.6/codeop.py", line 87, in _maybe_compile
    code1 = compiler(source + "\n", filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 133, in __call__
    codeob = compile(source, filename, symbol, self.flags, 1)
  File "<input>", line 1
    filename2 = os.path.join(folder, filename2 + '-' + suffix + '.csv')
    ^
IndentationError: unexpected indent
    QgsVectorFileWriter.writeAsVectorFormat(layer2, filename2, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 64, in runsource
    code = self.compile(source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 168, in __call__
    return _maybe_compile(self.compiler, source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 99, in _maybe_compile
    raise err1
  File "/usr/lib/python3.6/codeop.py", line 87, in _maybe_compile
    code1 = compiler(source + "\n", filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 133, in __call__
    codeob = compile(source, filename, symbol, self.flags, 1)
  File "<input>", line 1
    QgsVectorFileWriter.writeAsVectorFormat(layer2, filename2, encoding, None, driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
    ^
IndentationError: unexpected indent

en testant ton code qui marche l'erreur n'apparaît plus mais le fichier n'est pas créée et dans la console j'ai

Code:

Console Python
Utilisez iface pour accéder à l'interface de l'API QGIS ou tapez help(iface) pour plus d'informations
import os
from qgis.core import QgsVectorFileWriter, QgsProject, QgsCoordinateReferenceSystem
from datetime import datetime
layer_name1 = u'alignements'
folder = u'/home/laurent/Documents/2. Ingall/IGHAZER/atlas/alignements/workflow'
encoding = 'utf-8'
suffix = datetime.now().strftime('%Y-%m-%d-%H-%M')
def closeProject():
    layer1 = QgsProject.instance().mapLayersByName(layer_name1)[0]
    filename1 = layer_name1
    filename1 = os.path.join(folder, filename1 + '-' + suffix + '.csv')
    QgsVectorFileWriter.writeAsVectorFormat(layer1, filename1, encoding, QgsCoordinateReferenceSystem(2154), driverName='CSV',layerOptions=['GEOMETRY=AS_WKT'])
closeProject()
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 64, in runsource
    code = self.compile(source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 168, in __call__
    return _maybe_compile(self.compiler, source, filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 99, in _maybe_compile
    raise err1
  File "/usr/lib/python3.6/codeop.py", line 87, in _maybe_compile
    code1 = compiler(source + "\n", filename, symbol)
  File "/usr/lib/python3.6/codeop.py", line 133, in __call__
    codeob = compile(source, filename, symbol, self.flags, 1)
  File "<input>", line 6
    closeProject()
               ^
SyntaxError: invalid syntax

est-ce un problème de ma version pyhton avec QGIS3.2 ?

LJ

Dernière modification par laurent00 (Mon 27 August 2018 18:36)

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#5 Tue 28 August 2018 09:20

haubourg
Participant assidu
Lieu: Grenoble
Date d'inscription: 7 Sep 2005
Messages: 257
Site web

Re: QGIS 2.18: macro workflow

Bonjour Laurent,
c'est un problème d'indentation python. Il peut y avoir des séparateurs tab et whitespace mélangés, ce que python n'aime pas.
Le mieux est d'utiliser un éditeur de texte avec une option "tabify / untabify" pour être sûr. J'ai créé une demande de fonctionnalité pour avoir ça dans les zones d'édition python de QGIS, c'est un piège assez récurrent!
Régis

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