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@@ -25,180 +25,176 @@ |
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__revision__ = '$Format:%H$' |
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from processing.core.parameters import getParameterFromString |
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from processing.tools.system import isWindows |
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from ..Grass7Utils import Grass7Utils |
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from os import path |
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from copy import deepcopy |
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def multipleOutputDir(alg, field, basename=None): |
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""" |
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Handle multiple output of rasters into a |
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directory. |
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import os |
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from processing.tools.system import (isWindows, getTempFilename) |
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from processing.algs.grass7.Grass7Utils import Grass7Utils |
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from qgis.core import QgsProcessingParameterString |
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from qgis.core import QgsMessageLog |
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def orderedInput(alg, parameters, context, src, tgt, numSeq=None): |
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"""Import multiple rasters in order |
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:param alg: algorithm object. |
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:param parameters: algorithm parameters dict. |
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:param context: algorithm context. |
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:param src: Name of the source parameter. |
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:param tgt: Name of a new input parameter. |
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:param numSeq: List of a sequence for naming layers. |
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""" |
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# We need to know where is the output directory |
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outputDir = alg.getOutputValue(field) |
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# We need to grab the variable basename |
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if basename: |
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commands = ["for r in $(g.list type=rast pattern='{}*'); do".format(basename)] |
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# Otherwise, export everything |
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else: |
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commands = ["for r in $(g.list type=rast); do"] |
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commands.append(" r.out.gdal -c -t -f input=${{r}} output={}/${{r}}.tif createopt=\"TFW=YES,COMPRESS=LZW\"".format(outputDir)) |
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commands.append("done") |
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alg.commands.extend(commands) |
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alg.outputCommands.extend(commands) |
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def orderedInput(alg, inputParameter, targetParameterDef, numSeq=None): |
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"""Inport multiple rasters in the order""" |
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rasters = alg.getParameterValue(inputParameter).split(';') |
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# TODO: make targetParameter |
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inputParameter = getParameterFromString(targetParameterDef) |
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rootFilename = '{}_'.format(alg.getTempFilename()) |
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inputParameter.value = rootFilename |
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alg.addParameter(inputParameter) |
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rootFilename = 'rast_{}.'.format(os.path.basename(getTempFilename())) |
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#parameters[tgt] = rootFilename |
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param = QgsProcessingParameterString(tgt, 'virtual input', |
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rootFilename, False, False) |
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alg.addParameter(param) |
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rasters = alg.parameterAsLayerList(parameters, src, context) |
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# Handle specific range |
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if numSeq is None: |
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numSeq = list(range(1, len(rasters) + 1)) |
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for idx, raster in enumerate(rasters): |
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rasterName = '{}{}'.format(rootFilename, numSeq[idx]) |
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alg.loadRasterLayer(rasterName, raster, False, None, rasterName) |
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for idx in range(len(rasters)): |
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layer = rasters[idx] |
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if layer in list(alg.exportedLayers.keys()): |
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continue |
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else: |
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destFilename = '{}{}'.format(rootFilename, numSeq[idx]) |
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alg.setSessionProjectionFromLayer(layer, alg.commands) |
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alg.exportedLayers[layer] = destFilename |
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command = 'r.external input={} band=1 output={} --overwrite -o'.format(layer, destFilename) |
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alg.commands.append(command) |
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alg.setSessionProjectionFromProject(alg.commands) |
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region = \ |
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str(alg.getParameterValue(alg.GRASS_REGION_EXTENT_PARAMETER)) |
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regionCoords = region.split(',') |
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command = 'g.region' |
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command += ' -a' |
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command += ' n=' + str(regionCoords[3]) |
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command += ' s=' + str(regionCoords[2]) |
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command += ' e=' + str(regionCoords[1]) |
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command += ' w=' + str(regionCoords[0]) |
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cellsize = alg.getParameterValue(alg.GRASS_REGION_CELLSIZE_PARAMETER) |
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if cellsize: |
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command += ' res=' + str(cellsize) |
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else: |
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command += ' res=' + str(alg.getDefaultCellsize(parameters, context)) |
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alignToResolution = \ |
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alg.getParameterValue(alg.GRASS_REGION_ALIGN_TO_RESOLUTION) |
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if alignToResolution: |
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command += ' -a' |
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alg.commands.append(command) |
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return rootFilename |
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# Don't forget to remove the old input parameter |
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alg.removeParameter(src) |
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def regroupRasters(alg, parameters, field, groupField, subgroupField=None, extFile=None): |
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def regroupRasters(alg, parameters, context, src, group, subgroup=None, extFile=None): |
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""" |
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Group multiple input rasters into a group |
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* If there is a subgroupField, a subgroup will automatically be created. |
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* When an external file is provided, the file is copied into the respective |
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directory of the subgroup. |
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* extFile is a dict of the form 'parameterName':'directory name'. |
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directory of the subgroup. |
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:param parameters: |
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:param context: |
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:param src: name of input parameter with multiple rasters. |
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:param group: name of group. |
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:param subgroup: name of subgroup. |
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:param extFile: dict : parameterName:directory name |
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""" |
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# List of rasters names |
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new_parameters = deepcopy(parameters) |
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# Create a group parameter |
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groupName = 'group_{}'.format(os.path.basename(getTempFilename())) |
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param = QgsProcessingParameterString(group, 'virtual group', |
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groupName, False, False) |
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alg.addParameter(param) |
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rasters = alg.getParameterFromName(field) |
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rastersList = rasters.value.split(';') |
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del new_parameters[field] |
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# Create a subgroup |
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subgroupName = None |
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if subgroup: |
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subgroupName = 'subgroup_{}'.format(os.path.basename(getTempFilename())) |
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param = QgsProcessingParameterString(subgroup, 'virtual subgroup', |
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subgroupName, False, False) |
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alg.addParameter(param) |
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# Compute raster names |
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rasters = alg.parameterAsLayerList(parameters, src, context) |
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rasterNames = [] |
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for idx, raster in enumerate(rasters): |
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name = '{}_{}'.format(src, idx) |
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if name in alg.exportedLayers: |
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rasterNames.append(alg.exportedLayers[name]) |
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# Insert a i.group command |
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group = getParameterFromString("ParameterString|{}|group of rasters|None|False|False".format(groupField)) |
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new_parameters[group.name()] = alg.getTempFilename() |
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if subgroupField: |
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subgroup = getParameterFromString("ParameterString|{}|subgroup of rasters|None|False|False".format(subgroupField)) |
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new_parameters[subgroup.name()] = alg.getTempFilename() |
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command = 'i.group group={}{} input={}'.format( |
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new_parameters[group.name()], |
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' subgroup={}'.format(new_parameters[subgroup.name()]) if subgroupField else '', |
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','.join([alg.exportedLayers[f] for f in rastersList]) |
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) |
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groupName, |
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' subgroup={}'.format(subgroupName) if subgroup else '', |
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','.join(rasterNames)) |
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alg.commands.append(command) |
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# Handle external files |
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if subgroupField and extFile: |
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for ext in list(extFile.keys()): |
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extFileName = new_parameters[ext] |
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if extFileName: |
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shortFileName = path.basename(extFileName) |
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destPath = path.join(Grass7Utils.grassMapsetFolder(), |
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'PERMANENT', |
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'group', new_parameters[group.name()], |
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'subgroup', new_parameters[subgroup.name()], |
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extFile[ext], shortFileName) |
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copyFile(alg, extFileName, destPath) |
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new_parameters[ext] = shortFileName |
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# modify parameters values |
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alg.processCommand(new_parameters) |
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return group.value |
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def exportInputRasters(alg, rasterDic): |
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# if subgroupField and extFile: |
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# for ext in extFile.keys(): |
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# extFileName = new_parameters[ext] |
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# if extFileName: |
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# shortFileName = os.path.basename(extFileName) |
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# destPath = os.path.join(Grass7Utils.grassMapsetFolder(), |
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# 'PERMANENT', |
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# 'group', new_parameters[group.name()], |
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# 'subgroup', new_parameters[subgroup.name()], |
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# extFile[ext], shortFileName) |
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# copyFile(alg, extFileName, destPath) |
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alg.removeParameter(src) |
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return groupName, subgroupName |
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def importSigFile(alg, group, subgroup, src, sigDir='sig'): |
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""" |
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Import a signature file into an |
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internal GRASSDB folder |
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""" |
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shortSigFile = os.path.basename(src) |
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interSig = os.path.join(Grass7Utils.grassMapsetFolder(), |
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'PERMANENT', 'group', group, 'subgroup', |
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subgroup, sigDir, shortSigFile) |
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copyFile(alg, src, interSig) |
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return shortSigFile |
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def exportSigFile(alg, group, subgroup, dest, sigDir='sig'): |
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""" |
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Export a signature file from internal GRASSDB |
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to final destination |
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""" |
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shortSigFile = os.path.basename(dest) |
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interSig = os.path.join(Grass7Utils.grassMapsetFolder(), |
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'PERMANENT', 'group', group, 'subgroup', |
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subgroup, sigDir, shortSigFile) |
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moveFile(alg, interSig, dest) |
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return interSig |
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def exportInputRasters(alg, parameters, context, rasterDic): |
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""" |
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Export input rasters |
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Use a dict to make input/output link: |
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{ 'inputName1': 'outputName1', 'inputName2': 'outputName2'} |
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""" |
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createOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_OPT, context) |
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metaOpt = alg.parameterAsString(parameters, alg.GRASS_RASTER_FORMAT_META, context) |
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# Get inputs and outputs |
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for inputName, outputName in list(rasterDic.items()): |
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inputRaster = alg.getParameterValue(inputName) |
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outputRaster = alg.getOutputFromName(outputName) |
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command = 'r.out.gdal -c -t -f --overwrite createopt="TFW=YES,COMPRESS=LZW" input={} output=\"{}\"'.format( |
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alg.exportedLayers[inputRaster], |
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outputRaster.value |
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) |
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alg.commands.append(command) |
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alg.outputCommands.append(command) |
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for inputName, outputName in rasterDic.items(): |
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fileName = os.path.normpath( |
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alg.parameterAsOutputLayer(parameters, outputName, context)) |
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grassName = alg.exportedLayers[inputName] |
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outFormat = Grass7Utils.getRasterFormatFromFilename(fileName) |
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alg.exportRasterLayer(grassName, fileName, True, outFormat, createOpt, metaOpt) |
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def verifyRasterNum(alg, parameters, context, rasters, mini, maxi=None): |
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"""Verify if we have at least n rasters in multipleInput""" |
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num = len(alg.parameterAsStrings(rasters).split(';')) |
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"""Verify that we have at least n rasters in multipleInput""" |
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num = len(alg.parameterAsLayerList(parameters, rasters, context)) |
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if num < mini: |
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return 'You need to set at least {} input rasters for this algorithm!'.format(mini) |
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if maxi and num > maxi: |
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return 'You need to set a maximum of {} input rasters for this algorithm!'.format(maxi) |
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return None |
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def file2Output(alg, output): |
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"""Transform an OutputFile to a parameter""" |
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# Get the outputFile |
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outputFile = alg.getOutputFromName(output) |
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alg.removeOutputFromName(output) |
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# def file2Output(alg, output): |
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# """Transform an OutputFile to a parameter""" |
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# # Get the outputFile |
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# outputFile = alg.getOutputFromName(output) |
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# alg.removeOutputFromName(output) |
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# Create output parameter |
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param = getParameterFromString("ParameterString|{}|output file|None|False|False".format(output)) |
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param.value = outputFile.value |
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alg.addParameter(param) |
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# # Create output parameter |
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# param = getParameterFromString("ParameterString|{}|output file|None|False|False".format(output)) |
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# param.value = outputFile.value |
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# alg.addParameter(param) |
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return outputFile |
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# return outputFile |
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def createDestDir(alg, toFile): |
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""" Generates an mkdir command for GRASS7 script """ |
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# Creates the destination directory |
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command = "{} {}".format( |
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"MD" if isWindows() else "mkdir -p", |
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path.dirname(toFile) |
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os.path.dirname(toFile) |
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) |
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alg.commands.append(command) |
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