def setUpClass(cls):
start_app()
from processing.core.Processing import Processing
Processing.initialize()
cls.cleanup_paths = []
assert Grass7Utils.installedVersion()
def processOutputs(alg, parameters, context, feedback):
outputName = alg.parameterAsString(parameters, 'output', context)
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
for channel in ['red', 'green', 'blue']:
fileName = alg.parameterAsOutputLayer(parameters, '{}output'.format(channel), context)
grassName = '{}_{}'.format(outputName, channel)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(grassName, fileName, True, outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# We need to export the raster with all its bands and its color table
fileName = alg.parameterAsOutputLayer(parameters, 'output', context)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
grassName = alg.exportedLayers['map']
alg.exportRasterLayer(grassName, fileName, True,
outFormat, createOpt, metaOpt)
def setUpClass(cls):
start_app()
from processing.core.Processing import Processing
Processing.initialize()
cls.cleanup_paths = []
cls.temp_dir = tempfile.mkdtemp()
cls.cleanup_paths.append(cls.temp_dir)
assert Grass7Utils.installedVersion()
def testGrass(self):
'''Test GRASS is installed QGIS-89 (2)'''
folder = ProcessingConfig.getSetting(Grass7Utils.GRASS_FOLDER)
try:
ProcessingConfig.removeSetting(Grass7Utils.GRASS_FOLDER)
except KeyError:
pass
msg = Grass7Utils.checkGrassIsInstalled()
self.assertIsNone(msg)
ProcessingConfig.setSettingValue(Grass7Utils.GRASS_FOLDER, folder)
def exportSigFile(alg, group, subgroup, dest, sigDir='sig'):
"""
Export a signature file from internal GRASSDB
to final destination
"""
shortSigFile = os.path.basename(dest)
interSig = os.path.join(Grass7Utils.grassMapsetFolder(),
'PERMANENT', 'group', group, 'subgroup',
subgroup, sigDir, shortSigFile)
moveFile(alg, interSig, dest)
return interSig
def importSigFile(alg, group, subgroup, src, sigDir='sig'):
"""
Import a signature file into an
internal GRASSDB folder
"""
shortSigFile = os.path.basename(src)
interSig = os.path.join(Grass7Utils.grassMapsetFolder(),
'PERMANENT', 'group', group, 'subgroup',
subgroup, sigDir, shortSigFile)
copyFile(alg, src, interSig)
return shortSigFile
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# Export the results from correctedoutput
grassName = 'correctedoutput{}'.format(alg.uniqueSuffix)
fileName = alg.parameterAsOutputLayer(
parameters, 'routput', context)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(grassName, fileName, True,
outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# Export each color raster
colors = ['red', 'green', 'blue']
for color in colors:
fileName = os.path.normpath(
alg.parameterAsOutputLayer(parameters, 'output_{}'.format(color), context))
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer('blended.{}'.format(color[0]),
fileName, True, outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
outputDir = alg.parameterAsString(parameters, 'output_dir', context)
outputParam = alg.parameterAsString(parameters, 'output', context)
outputs = outputParam.split(',')
# We need to export each of the output
for output in outputs:
fileName = os.path.join(outputDir, output)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(output, fileName, True,
outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# Export all rasters with their color tables (and their bands)
rasters = alg.parameterAsLayerList(parameters, 'map', context)
outputDir = alg.parameterAsString(parameters, 'output_dir', context)
for idx, raster in enumerate(rasters):
rasterName = 'map_{}'.format(idx)
fileName = os.path.join(outputDir, rasterName)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(alg.exportedLayers[rasterName], fileName, True,
outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT,
context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META,
context)
# Export all rasters with their color tables (and their bands)
rasters = alg.parameterAsLayerList(parameters, 'map', context)
outputDir = alg.parameterAsString(parameters, 'output_dir', context)
for idx, raster in enumerate(rasters):
rasterName = 'map_{}'.format(idx)
fileName = os.path.join(outputDir, rasterName)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(alg.exportedLayers[rasterName], fileName, True,
outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT,
context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META,
context)
outputDir = alg.parameterAsString(parameters, 'output_dir', context)
outputParam = alg.parameterAsString(parameters, 'output', context)
outputs = outputParam.split(',')
# We need to export each of the output
for output in outputs:
fileName = os.path.join(outputDir, output)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(output, fileName, True, outFormat, createOpt,
metaOpt)
def processOutputs(alg, parameters, context, feedback):
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT,
context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META,
context)
# Export each color raster
colors = ['red', 'green', 'blue']
for color in colors:
fileName = os.path.normpath(
alg.parameterAsOutputLayer(parameters, 'output_{}'.format(color),
context))
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer('blended.{}'.format(color[0]), fileName, True,
outFormat, createOpt, metaOpt)
def exportInputRasters(alg, parameters, context, rasterDic):
"""
Export input rasters
Use a dict to make input/output link:
{ 'inputName1': 'outputName1', 'inputName2': 'outputName2'}
"""
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# Get inputs and outputs
for inputName, outputName in rasterDic.items():
fileName = os.path.normpath(
alg.parameterAsOutputLayer(parameters, outputName, context))
grassName = alg.exportedLayers[inputName]
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(grassName, fileName, True, outFormat, createOpt, metaOpt)
def exportInputRasters(alg, parameters, context, rasterDic):
"""
Export input rasters
Use a dict to make input/output link:
{ 'inputName1': 'outputName1', 'inputName2': 'outputName2'}
"""
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
# Get inputs and outputs
for inputName, outputName in rasterDic.items():
fileName = os.path.normpath(
alg.parameterAsOutputLayer(parameters, outputName, context))
grassName = alg.exportedLayers[inputName]
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(grassName, fileName, True, outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context, feedback):
# We take all the outputs and we export them to the output directory
outputDir = alg.parameterAsString(parameters, 'output_dir', context)
output = alg.parameterAsString(parameters, 'output', context)
outfile = alg.parameterAsString(parameters, 'outfile', context)
outs = []
if output:
outs = output.split(',')
elif outfile:
# Handle file manually to find the name of the layers
with open(outfile) as f:
for line in f:
if '|' in line:
outs.append(line.split('|')[0])
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
for out in outs:
# We need to export the raster with all its bands and its color table
fileName = os.path.join(outputDir, out)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(out, fileName, True,
outFormat, createOpt, metaOpt)
def processOutputs(alg, parameters, context, feedback):
# We take all the outputs and we export them to the output directory
outputDir = alg.parameterAsString(parameters, 'output_dir', context)
output = alg.parameterAsString(parameters, 'output', context)
outfile = alg.parameterAsString(parameters, 'outfile', context)
outs = []
if output:
outs = output.split(',')
elif outfile:
# Handle file manually to find the name of the layers
with open(outfile) as f:
for line in f:
if '|' in line:
outs.append(line.split('|')[0])
createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context)
metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context)
for out in outs:
# We need to export the raster with all its bands and its color table
fileName = os.path.join(outputDir, out)
outFormat = Grass7Utils.getRasterFormatFromFilename(fileName)
alg.exportRasterLayer(out, fileName, True,
outFormat, createOpt, metaOpt)
def qgis_session_info(self):
# import re
# from processing.algs.saga.SagaAlgorithmProvider import SagaAlgorithmProvider
# from processing.algs.saga import SagaUtils
# from processing.algs.grass.GrassUtils import GrassUtils
# from processing.algs.grass7.Grass7Utils import Grass7Utils
# from processing.algs.otb.OTBAlgorithmProvider import OTBAlgorithmProvider
# from processing.algs.otb.OTBUtils import getInstalledVersion
# from processing.algs.taudem.TauDEMUtils import TauDEMUtils
# from osgeo import gdal
# from processing.tools.system import isWindows, isMac
# QGIS version
qgis = QGis.QGIS_VERSION
# GRASS versions
# grassPath returns "" if called under Linux and if there is no GRASS
# installation
GrassUtils.checkGrassIsInstalled()
g6 = GrassUtils.isGrassInstalled
if g6 is True and isWindows():
g6 = GrassUtils.grassPath()
# extract everything followed by grass-, i.e. extract the version number
g6 = re.findall("grass-(.*)", g6)
if g6 is True and isMac():
g6 = GrassUtils.grassPath()[0:21]
g6 = os.listdir(g6)
delim = ';'
g6 = delim.join(g6)
g6 = re.findall('[0-9].[0-9].[0-9]', g6)
Grass7Utils.checkGrass7IsInstalled()
g7 = Grass7Utils.isGrass7Installed
if g7 is True and isWindows():
g7 = Grass7Utils.grassPath()
g7 = re.findall('grass-(.*)', g7)
if g7 is True and isMac():
g7 = Grass7Utils.grassPath()[0:21]
g7 = os.listdir(g7)
delim = ';'
g7 = delim.join(g7)
#g7 = re.findall(';(grass[0-9].);', g7)
g7 = re.findall('[0-9].[0-9].[0-9]', g7)
# installed SAGA version usable with QGIS
saga = SagaUtils.getSagaInstalledVersion()
# supported SAGA versions
try:
# supportedVersions were deleted from SagaAlgorithmProvider since
# QGIS 2.18.10. At least this is the case with custom applications...
my_dict = SagaAlgorithmProvider.supportedVersions
saga_versions = my_dict.keys()
saga_versions.sort()
except:
# with QGIS 2.18.10 only SAGA 2.3.0 and 2.3.1 is suppported
# well, observe next QGIS releases and try to avoid the hard-coding!
saga_versions = [""]
# GDAL
gdal_v = gdal.VersionInfo('VERSION_NUM')
gdal_v = '.'.join([gdal_v[0], gdal_v[2], gdal_v[4]])
## this is good to have for the future, but so far, I would not report
## these software versions since we don't know if they actually work
## with QGIS (without additional functions such as run_taudem...)
## OTB versions
# otb = getInstalledVersion()
# otb = OTBUtils.getInstalledVersion()
## TauDEM versions (currently not in use because no function to extract
## Taudem version in 'TauDEMUtils')
# TauDEMUtils.taudemMultifilePath()
# finally, put it all into a named dictionary
keys = ["qgis_version", "gdal", "grass6", "grass7", "saga",\
"supported_saga_versions"]
values = [qgis, gdal_v, g6, g7, saga, saga_versions]
info = dict(zip(keys, values))
return info
def run(self):
"""Run method that performs all the real work"""
# Create the dialog with elements (after translation) and keep reference
# Only create GUI ONCE in callback, so that it will only load when the plugin is started
if self.first_start == True:
self.first_start = False
self.dlg = DissolveToolDialog()
self.dlg.pushButton.clicked.connect(self.select_output_vector)
self.dlg.pushButton_2.clicked.connect(self.select_output_gaps)
self.dlg.pushButton_3.clicked.connect(self.select_grass_addon)
# Fetch the currently loaded layers
layers = QgsProject.instance().layerTreeRoot().children()
# Clear the contents of the comboBox from previous runs
self.dlg.comboBox.clear()
# Populate the comboBox with names of all the loaded layers
self.dlg.comboBox.addItems([layer.name() for layer in layers])
# Clear the contents of the comboBox from previous runs
self.dlg.comboBox_2.clear()
# Populate the comboBox with names of all the loaded layers
self.dlg.comboBox_2.addItems([layer.name() for layer in layers])
mingapsize = "10000000"
self.dlg.lineEdit_4.setText(mingapsize)
discol = "DISS_CENTR"
self.dlg.lineEdit_5.setText(discol)
# show the dialog
self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
# See if OK was pressed
if result:
# Do something useful here - delete the line containing pass and
# substitute with your code.
feedback = QgsProcessingFeedback()
# old partner regions
selectedLayerIndex = self.dlg.comboBox.currentIndex()
partner_regions_old = layers[selectedLayerIndex].layer(
).dataProvider().dataSourceUri()
partner_regions_old = partner_regions_old[:partner_regions_old.
rfind('|')]
# partner region to add
selectedLayerIndex = self.dlg.comboBox_2.currentIndex()
partner_region_add = layers[selectedLayerIndex].layer(
).dataProvider().dataSourceUri()
partner_region_add = partner_region_add[:partner_region_add.
rfind('|')]
self.iface.messageBar().pushMessage(
"Info",
"Partner region to add is in " + partner_region_add,
level=Qgis.Info,
duration=3)
outputvector = self.dlg.lineEdit.text()
remaining_gaps = self.dlg.lineEdit_2.text()
mingapsize = self.dlg.lineEdit_4.text()
discol = self.dlg.lineEdit_5.text()
grasscommand = Grass7Utils.grassBin()
if not grasscommand:
self.iface.messageBar().pushMessage("Error",
"GRASS GIS not found",
level=Qgis.Critical,
duration=3)
# install the GRASS addon v.ecmwf.adregions
grassaddonpath = self.dlg.lineEdit_3.text()
if grassaddonpath:
gcommands = (
"g.extension extension=v.ecmwf.addregion url='%s'" %
grassaddonpath)
Grass7Utils.executeGrass([gcommands], feedback)
gcommands = (
"v.ecmwf.addregion partner_regions=\"%s\" new_partner=\"%s\" output=\"%s\""
% (partner_regions_old, partner_region_add, outputvector))
if discol:
gcommands = gcommands + (" column=%s " % discol)
if mingapsize and int(mingapsize) > 0:
gcommands = gcommands + (" mingapsize=%s" % mingapsize)
if remaining_gaps:
gcommands = gcommands + (" gaps=\"%s\"" % remaining_gaps)
print("GRASS command:")
print("%s" % gcommands)
Grass7Utils.executeGrass([gcommands], feedback)
self.iface.messageBar().pushMessage("Success",
"Output vector written at " +
outputvector,
level=Qgis.Success,
duration=3)
def qgis_session_info(self):
# import re
# from processing.algs.saga.SagaAlgorithmProvider import SagaAlgorithmProvider
# from processing.algs.saga import SagaUtils
# from processing.algs.grass.GrassUtils import GrassUtils
# from processing.algs.grass7.Grass7Utils import Grass7Utils
# from processing.algs.otb.OTBAlgorithmProvider import OTBAlgorithmProvider
# from processing.algs.otb.OTBUtils import getInstalledVersion
# from processing.algs.taudem.TauDEMUtils import TauDEMUtils
# from osgeo import gdal
# from processing.tools.system import isWindows, isMac
# QGIS version
qgis = QGis.QGIS_VERSION
# GRASS versions
# grassPath returns "" if called under Linux and if there is no GRASS
# installation
GrassUtils.checkGrassIsInstalled()
g6 = GrassUtils.isGrassInstalled
if g6 is True and isWindows():
g6 = GrassUtils.grassPath()
# extract everything followed by grass-, i.e. extract the version number
g6 = re.findall("grass-(.*)", g6)
if g6 is True and isMac():
g6 = GrassUtils.grassPath()[0:21]
g6 = os.listdir(g6)
delim = ';'
g6 = delim.join(g6)
g6 = re.findall('[0-9].[0-9].[0-9]', g6)
Grass7Utils.checkGrass7IsInstalled()
g7 = Grass7Utils.isGrass7Installed
if g7 is True and isWindows():
g7 = Grass7Utils.grassPath()
g7 = re.findall('grass-(.*)', g7)
if g7 is True and isMac():
g7 = Grass7Utils.grassPath()[0:21]
g7 = os.listdir(g7)
delim = ';'
g7 = delim.join(g7)
#g7 = re.findall(';(grass[0-9].);', g7)
g7 = re.findall('[0-9].[0-9].[0-9]', g7)
# installed SAGA version usable with QGIS
saga = SagaUtils.getSagaInstalledVersion()
# supported SAGA versions
my_dict = SagaAlgorithmProvider.supportedVersions
saga_versions = my_dict.keys()
saga_versions.sort()
# GDAL
gdal_v = gdal.VersionInfo('VERSION_NUM')
gdal_v = '.'.join([gdal_v[0], gdal_v[2], gdal_v[4]])
## this is good to have for the future, but so far, I would not report
## these software versions since we don't know if they actually work
## with QGIS (without additional functions such as run_taudem...)
## OTB versions
# otb = getInstalledVersion()
# otb = OTBUtils.getInstalledVersion()
## TauDEM versions (currently not in use because no function to extract
## Taudem version in 'TauDEMUtils')
# TauDEMUtils.taudemMultifilePath()
# finally, put it all into a named dictionary
keys = ["qgis_version", "gdal", "grass6", "grass7", "saga",\
"supported_saga_versions"]
values = [qgis, gdal_v, g6, g7, saga, saga_versions]
info = dict(zip(keys, values))
return info
def processOutputs(alg, parameters, context, feedback):
crs = alg.parameterAsCrs(parameters, 'sourceproj', context)
wkt_file_name = Grass7Utils.exportCrsWktToFile(crs)
alg.commands.insert(0, 'g.proj -c wkt="{}"'.format(wkt_file_name))
from PyQt5.QtCore import QVariant import ogr import subprocess import pandas as pd from processing.tools import dataobjects from os import path import line_profiler profile = line_profiler.LineProfiler() # Pour faire marcher GRASS en StandAlone script # https://gis.stackexchange.com/questions/296502/pyqgis-scripts-outside-of-qgis-gui-running-processing-algorithms-from-grass-prov from processing.algs.grass7.Grass7Utils import Grass7Utils Grass7Utils.checkGrassIsInstalled() # Chemin ou QGIS est installer QgsApplication.setPrefixPath(r"C:\Logiciels\OSGeo4W\bin", True) # Créer une reference à QgsApplication, # Mettre le 2eme argument a faux pour desativer l'interface graphique de QGIS qgs = QgsApplication([], False) # initialiser QGIS qgs.initQgis() # Initialiser les outils qgis Processing.initialize()
