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Python Grass7Utils.endGrass7Session方法代码示例

本文整理汇总了Python中Grass7Utils.Grass7Utils.endGrass7Session方法的典型用法代码示例。如果您正苦于以下问题:Python Grass7Utils.endGrass7Session方法的具体用法?Python Grass7Utils.endGrass7Session怎么用?Python Grass7Utils.endGrass7Session使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Grass7Utils.Grass7Utils的用法示例。


在下文中一共展示了Grass7Utils.endGrass7Session方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: processAlgorithm

# 需要导入模块: from Grass7Utils import Grass7Utils [as 别名]
# 或者: from Grass7Utils.Grass7Utils import endGrass7Session [as 别名]

#.........这里部分代码省略.........
                command += ' ' + param.name + '=' + s
            elif isinstance(param, ParameterBoolean):
                if param.value:
                    command += ' ' + param.name
            elif isinstance(param, ParameterSelection):
                idx = int(param.value)
                command += ' ' + param.name + '=' + str(param.options[idx])
            elif isinstance(param, ParameterString):
                command += ' ' + param.name + '="' + str(param.value) + '"'
            else:
                command += ' ' + param.name + '="' + str(param.value) + '"'

        uniqueSufix = str(uuid.uuid4()).replace('-', '')
        for out in self.outputs:
            if isinstance(out, OutputFile):
                if out.name == 'outputtext':
                    # The 'outputtext' file is generated by piping output
                    # from GRASS, is not an actual grass command
                    command += ' > ' + out.value
                else:
                    command += ' ' + out.name + '="' + out.value + '"'
            elif not isinstance(out, OutputHTML):
                # Html files are not generated by GRASS, only by us to
                # decorate GRASS output, so we skip them. An output name
                # to make sure it is unique if the session uses this
                # algorithm several times.
                uniqueOutputName = out.name + uniqueSufix
                command += ' ' + out.name + '=' + uniqueOutputName

                # Add output file to exported layers, to indicate that
                # they are present in GRASS
                self.exportedLayers[out.value] = uniqueOutputName

        command += ' --overwrite'
        commands.append(command)

        # 3: Export resulting layers to a format that qgis can read

        for out in self.outputs:
            if isinstance(out, OutputRaster):
                filename = out.value

                # Raster layer output: adjust region to layer before
                # exporting
                commands.append('g.region raster=' + out.name + uniqueSufix)
                outputCommands.append('g.region raster=' + out.name
                                      + uniqueSufix)
                if self.grassName == 'r.composite':
                    command = 'r.out.tiff -t --verbose' # FIXME r.out.tiff deprecated, use r.out.gdal
                    command += ' input='
                    command += out.name + uniqueSufix
                    command += ' output="' + filename + '"'
                    commands.append(command)
                    outputCommands.append(command)
                else:
                    command = 'r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW"'
                    command += ' input='

                if self.grassName == 'r.horizon':
                    command += out.name + uniqueSufix + '_0'
                else:
                    command += out.name + uniqueSufix
                    command += ' output="' + filename + '"'
                    commands.append(command)
                    outputCommands.append(command)

            if isinstance(out, OutputVector):
                filename = out.value
                # FIXME: check if needed: -c   Also export features without category (not labeled). Otherwise only features with category are exported.
                command = 'v.out.ogr -s -e input=' + out.name + uniqueSufix
                command += ' output="' + os.path.dirname(out.value) + '"'
                command += ' format=ESRI_Shapefile'
                command += ' olayer=' + os.path.basename(out.value)[:-4]
                typeidx = \
                    self.getParameterValue(self.GRASS_OUTPUT_TYPE_PARAMETER)
                outtype = ('auto' if typeidx
                           is None else self.OUTPUT_TYPES[typeidx])
                command += ' type=' + outtype
                commands.append(command)
                outputCommands.append(command)

        # 4: Run GRASS

        loglines = []
        loglines.append(self.tr('GRASS GIS 7 execution commands'))
        for line in commands:
            progress.setCommand(line)
            loglines.append(line)
        if ProcessingConfig.getSetting(Grass7Utils.GRASS_LOG_COMMANDS):
            ProcessingLog.addToLog(ProcessingLog.LOG_INFO, loglines)
        self.consoleOutput = Grass7Utils.executeGrass7(commands, progress,
                                                       outputCommands)
        self.postProcessResults()

        # If the session has been created outside of this algorithm, add
        # the new GRASS GIS 7 layers to it otherwise finish the session
        if existingSession:
            Grass7Utils.addSessionLayers(self.exportedLayers)
        else:
            Grass7Utils.endGrass7Session()
开发者ID:Ariki,项目名称:QGIS,代码行数:104,代码来源:Grass7Algorithm.py

示例2: processAlgorithm

# 需要导入模块: from Grass7Utils import Grass7Utils [as 别名]
# 或者: from Grass7Utils.Grass7Utils import endGrass7Session [as 别名]

#.........这里部分代码省略.........
        command += ' --overwrite'
        commands.append(command)

        # 3: Export resulting layers to a format that qgis can read

        for out in self.outputs:
            if isinstance(out, OutputRaster):
                filename = out.value

                # Raster layer output: adjust region to layer before
                # exporting
                commands.append('g.region raster=' + out.name + uniqueSufix)
                outputCommands.append('g.region raster=' + out.name
                                      + uniqueSufix)

                if self.grass7Name == 'r.statistics':
                    # r.statistics saves its results in a non-qgis compatible
                    # way. Post-process them with r.mapcalc.
                    calcExpression = 'correctedoutput' + uniqueSufix
                    calcExpression += '[email protected]' + out.name + uniqueSufix
                    command = 'r.mapcalc expression="' + calcExpression + '"'
                    commands.append(command)
                    outputCommands.append(command)

                    command = 'r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW"'
                    command += ' input='
                    command += 'correctedoutput' + uniqueSufix
                    command += ' output="' + filename + '"'
                elif self.grass7Name == 'r.composite':
                    command = 'r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW"'
                    command += ' input='
                    command += 'correctedoutput' + uniqueSufix
                    command += ' output="' + filename + '"'
                else:
                    command = 'r.out.gdal -c createopt="TFW=YES,COMPRESS=LZW"'
                    command += ' input='

                if self.grass7Name == 'r.horizon':
                    command += out.name + uniqueSufix + '_0'
                elif self.grass7Name == 'r.composite':
                    commands.append(command)
                    outputCommands.append(command)
                elif self.grass7Name == 'r.statistics':
                    commands.append(command)
                    outputCommands.append(command)
                else:
                    command += out.name + uniqueSufix
                    command += ' output="' + filename + '"'
                    commands.append(command)
                    outputCommands.append(command)

            if isinstance(out, OutputVector):
                filename = out.value
                typeidx = self.getParameterValue(self.GRASS_OUTPUT_TYPE_PARAMETER)
                outtype = ('auto' if typeidx
                           is None else self.OUTPUT_TYPES[typeidx])
                if self.grass7Name == 'r.flow':
                    command = 'v.out.ogr type=line layer=0 -c -s -e input=' + out.name + uniqueSufix
                elif self.grass7Name == 'v.voronoi':
                    if '-l' in command:
                        command = 'v.out.ogr type=line layer=0 -c -s -e input=' + out.name + uniqueSufix
                    else:
                        command = 'v.out.ogr -c -s -e input=' + out.name + uniqueSufix
                        command += ' type=' + outtype
                elif self.grass7Name == 'v.sample':
                    command = 'v.out.ogr type=point -c -s -e input=' + out.name + uniqueSufix
                else:
                    command = 'v.out.ogr -c -s -e input=' + out.name + uniqueSufix
                    command += ' type=' + outtype
                command += ' output="' + os.path.dirname(out.value) + '"'
                command += ' format=ESRI_Shapefile'
                command += ' olayer=' + os.path.basename(out.value)[:-4]
                commands.append(command)
                outputCommands.append(command)

        # 4: Run GRASS

        loglines = []
        loglines.append(self.tr('GRASS GIS 7 execution commands'))
        for line in commands:
            progress.setCommand(line)
            loglines.append(line)
        if ProcessingConfig.getSetting(Grass7Utils.GRASS_LOG_COMMANDS):
            ProcessingLog.addToLog(ProcessingLog.LOG_INFO, loglines)

        Grass7Utils.executeGrass7(commands, progress, outputCommands)

        for out in self.outputs:
            if isinstance(out, OutputHTML):
                with open(self.getOutputFromName("rawoutput").value) as f:
                    rawOutput = "".join(f.readlines())
                with open(out.value, "w") as f:
                    f.write("<pre>%s</pre>" % rawOutput)

        # If the session has been created outside of this algorithm, add
        # the new GRASS GIS 7 layers to it otherwise finish the session
        if existingSession:
            Grass7Utils.addSessionLayers(self.exportedLayers)
        else:
            Grass7Utils.endGrass7Session()
开发者ID:spatialthoughts,项目名称:QGIS,代码行数:104,代码来源:Grass7Algorithm.py

示例3: processAlgorithm

# 需要导入模块: from Grass7Utils import Grass7Utils [as 别名]
# 或者: from Grass7Utils.Grass7Utils import endGrass7Session [as 别名]
    def processAlgorithm(self, progress):
        if system.isWindows():
            path = Grass7Utils.grassPath()
            if path == '':
                raise GeoAlgorithmExecutionException(
                    self.tr('GRASS GIS 7 folder is not configured. Please '
                            'configure it before running GRASS GIS 7 algorithms.'))

        # Create brand new commands lists
        self.commands = []
        self.outputCommands = []
        self.exportedLayers = {}

        # If GRASS session has been created outside of this algorithm then
        # get the list of layers loaded in GRASS otherwise start a new
        # session
        existingSession = Grass7Utils.sessionRunning
        if existingSession:
            self.exportedLayers = Grass7Utils.getSessionLayers()
        else:
            Grass7Utils.startGrass7Session()

        # Handle ext functions for inputs/command/outputs
        if self.module:
            if hasattr(self.module, 'processInputs'):
                func = getattr(self.module, 'processInputs')
                func(self)
            else:
                self.processInputs()

            if hasattr(self.module, 'processCommand'):
                func = getattr(self.module, 'processCommand')
                func(self)
            else:
                self.processCommand()

            if hasattr(self.module, 'processOutputs'):
                func = getattr(self.module, 'processOutputs')
                func(self)
            else:
                self.processOutputs()
        else:
            self.processInputs()
            self.processCommand()
            self.processOutputs()

        # Run GRASS
        loglines = []
        loglines.append(self.tr('GRASS GIS 7 execution commands'))
        for line in self.commands:
            progress.setCommand(line)
            loglines.append(line)
        if ProcessingConfig.getSetting(Grass7Utils.GRASS_LOG_COMMANDS):
            ProcessingLog.addToLog(ProcessingLog.LOG_INFO, loglines)

        Grass7Utils.executeGrass7(self.commands, progress, self.outputCommands)

        for out in self.outputs:
            if isinstance(out, OutputHTML):
                with open(self.getOutputFromName("rawoutput").value) as f:
                    rawOutput = "".join(f.readlines())
                with open(out.value, "w") as f:
                    f.write("<pre>%s</pre>" % rawOutput)

        # If the session has been created outside of this algorithm, add
        # the new GRASS GIS 7 layers to it otherwise finish the session
        if existingSession:
            Grass7Utils.addSessionLayers(self.exportedLayers)
        else:
            Grass7Utils.endGrass7Session()
开发者ID:santosa-sp,项目名称:QGIS,代码行数:72,代码来源:Grass7Algorithm.py


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