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Python GrassUtils.endGrassSession方法代码示例

本文整理汇总了Python中GrassUtils.GrassUtils.endGrassSession方法的典型用法代码示例。如果您正苦于以下问题:Python GrassUtils.endGrassSession方法的具体用法?Python GrassUtils.endGrassSession怎么用?Python GrassUtils.endGrassSession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GrassUtils.GrassUtils的用法示例。


在下文中一共展示了GrassUtils.endGrassSession方法的1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 GrassUtils import GrassUtils [as 别名]
# 或者: from GrassUtils.GrassUtils import endGrassSession [as 别名]

#.........这里部分代码省略.........
                for layer in self.exportedLayers.keys():
                    s = s.replace(layer, self.exportedLayers[layer])
                s = s.replace(';', ',')
                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 + '=' + unicode(param.options[idx])
            elif isinstance(param, ParameterString):
                command += ' ' + param.name + '="' + unicode(param.value) + '"'
            else:
                command += ' ' + param.name + '="' + unicode(param.value) + '"'

        uniqueSufix = unicode(uuid.uuid4()).replace('-', '')
        for out in self.outputs:
            if isinstance(out, OutputFile):
                command += ' > ' + out.value
            elif not isinstance(out, OutputHTML):
                # We add 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.getCompatibleFileName(self)

                # Raster layer output: adjust region to layer before
                # exporting
                commands.append('g.region rast=' + out.name + uniqueSufix)
                outputCommands.append('g.region rast=' + out.name
                                      + uniqueSufix)
                if self.grassName == 'r.composite':
                    command = 'r.out.tiff -t --verbose'
                    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.getCompatibleFileName(self)
                command = 'v.out.ogr -s -c -e -z input=' + out.name + uniqueSufix
                command += ' dsn="' + os.path.dirname(filename) + '"'
                command += ' format=ESRI_Shapefile'
                command += ' olayer=' + os.path.splitext(os.path.basename(filename))[0]
                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 execution commands'))
        for line in commands:
            progress.setCommand(line)
            loglines.append(line)
        if ProcessingConfig.getSetting(GrassUtils.GRASS_LOG_COMMANDS):
            ProcessingLog.addToLog(ProcessingLog.LOG_INFO, loglines)
        GrassUtils.executeGrass(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 layers to it otherwise finish the session
        if existingSession:
            GrassUtils.addSessionLayers(self.exportedLayers)
        else:
            GrassUtils.endGrassSession()
开发者ID:siliconsmiley,项目名称:QGIS,代码行数:104,代码来源:GrassAlgorithm.py


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