Python SagaUtils.sagaPath方法代码示例

# 需要导入模块: from sextante.saga.SagaUtils import SagaUtils [as 别名]
# 或者: from sextante.saga.SagaUtils.SagaUtils import sagaPath [as 别名]
 def initializeSettings(self):
     AlgorithmProvider.initializeSettings(self)
     if SextanteUtils.isWindows():
         SextanteConfig.addSetting(
             Setting(self.getDescription(), SagaUtils.SAGA_FOLDER, "SAGA folder", SagaUtils.sagaPath())
         )
     SextanteConfig.addSetting(
         Setting(
             self.getDescription(),
             SagaUtils.SAGA_AUTO_RESAMPLING,
             "Use min covering grid system for resampling",
             True,
         )
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_LOG_COMMANDS, "Log execution commands", False)
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_LOG_CONSOLE, "Log console output", False)
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_RESAMPLING_REGION_XMIN, "Resampling region min x", 0)
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_RESAMPLING_REGION_YMIN, "Resampling region min y", 0)
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_RESAMPLING_REGION_XMAX, "Resampling region max x", 1000)
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_RESAMPLING_REGION_YMAX, "Resampling region max y", 1000)
     )
     SextanteConfig.addSetting(
         Setting(self.getDescription(), SagaUtils.SAGA_RESAMPLING_REGION_CELLSIZE, "Resampling region cellsize", 1)
     )

# 需要导入模块: from sextante.saga.SagaUtils import SagaUtils [as 别名]
# 或者: from sextante.saga.SagaUtils.SagaUtils import sagaPath [as 别名]
 def checkBeforeOpeningParametersDialog(self):
     if SextanteUtils.isWindows():
         path = SagaUtils.sagaPath()
         if path == "":
             return "SAGA folder is not configured.\nPlease configure it before running SAGA algorithms."
     else:
         SAGA_INSTALLED = "SAGA_INSTALLED"
         settings = QSettings()
         if settings.contains(SAGA_INSTALLED):
             return
         command = ["saga_cmd"]
         proc = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE, stdin=subprocess.PIPE,stderr=subprocess.STDOUT, universal_newlines=True).stdout
         for line in iter(proc.readline, ""):
             if "________" in line:
                 settings.setValue(SAGA_INSTALLED, True)
                 return
         return "It seems that SAGA is not correctly installed in your system.\nPlease install it before running SAGA algorithms."

# 需要导入模块: from sextante.saga.SagaUtils import SagaUtils [as 别名]
# 或者: from sextante.saga.SagaUtils.SagaUtils import sagaPath [as 别名]
    def processAlgorithm(self, progress):
        if SextanteUtils.isWindows():
            path = SagaUtils.sagaPath()
            if path == "":
                raise GeoAlgorithmExecutionException("SAGA folder is not configured.\nPlease configure it before running SAGA algorithms.")
        commands = list()
        self.exportedLayers = {}

        #1: Export rasters to sgrd and vectors to shp
        #   Tables must be in dbf format. We check that.
        if self.resample:
            self.calculateResamplingExtent()
        for param in self.parameters:
            if isinstance(param, ParameterRaster):
                if param.value == None:
                    continue
                value = param.value
                if not value.endswith("sgrd"):
                    commands.append(self.exportRasterLayer(value))
                if self.resample:
                    commands.append(self.resampleRasterLayer(value));
            if isinstance(param, ParameterVector):
                if param.value == None:
                    continue
                layer = QGisLayers.getObjectFromUri(param.value, False)
                if layer:
                    filename = LayerExporter.exportVectorLayer(layer)
                    self.exportedLayers[param.value]=filename
                elif not param.value.endswith("shp"):
                        raise GeoAlgorithmExecutionException("Unsupported file format")
            if isinstance(param, ParameterTable):
                if param.value == None:
                    continue
                table = QGisLayers.getObjectFromUri(param.value, False)
                if table:
                    filename = LayerExporter.exportTable(table)
                    self.exportedLayers[param.value]=filename
                elif not param.value.endswith("shp"):
                        raise GeoAlgorithmExecutionException("Unsupported file format")
            if isinstance(param, ParameterMultipleInput):
                if param.value == None:
                    continue
                layers = param.value.split(";")
                if layers == None or len(layers) == 0:
                    continue
                if param.datatype == ParameterMultipleInput.TYPE_RASTER:
                    for layerfile in layers:
                        if not layerfile.endswith("sgrd"):
                            commands.append(self.exportRasterLayer(layerfile))
                        if self.resample:
                            commands.append(self.resampleRasterLayer(layerfile));
                elif param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
                    for layerfile in layers:
                        layer = QGisLayers.getObjectFromUri(layerfile, False)
                        if layer:
                            filename = LayerExporter.exportVectorLayer(layer)
                            self.exportedLayers[layerfile]=filename
                        elif (not layerfile.endswith("shp")):
                            raise GeoAlgorithmExecutionException("Unsupported file format")

        #2: set parameters and outputs
        if SextanteUtils.isWindows():
            command = self.undecoratedGroup  + " \"" + self.cmdname + "\""
        else:
            command = "lib" + self.undecoratedGroup  + " \"" + self.cmdname + "\""

        for param in self.parameters:
            if param.value is None:
                continue
            if isinstance(param, (ParameterRaster, ParameterVector, ParameterTable)):
                value = param.value
                if value in self.exportedLayers.keys():
                    command+=(" -" + param.name + " \"" + self.exportedLayers[value] + "\"")
                else:
                    command+=(" -" + param.name + " \"" + value + "\"")
            elif isinstance(param, ParameterMultipleInput):
                s = param.value
                for layer in self.exportedLayers.keys():
                    s = s.replace(layer, self.exportedLayers[layer])
                command+=(" -" + param.name + " \"" + s + "\"");
            elif isinstance(param, ParameterBoolean):
                if param.value:
                    command+=(" -" + param.name);
            elif isinstance(param, ParameterFixedTable):
                tempTableFile  = SextanteUtils.getTempFilename("txt")
                f = open(tempTableFile, "w")
                f.write('\t'.join([col for col in param.cols]) + "\n")
                values = param.value.split(",")
                for i in range(0, len(values), 3):
                    s = values[i] + "\t" + values[i+1] + "\t" + values[i+2] + "\n"
                    f.write(s)
                f.close()
                command+=( " -" + param.name + " \"" + tempTableFile + "\"")
            elif isinstance(param, ParameterExtent):
                #'we have to substract/add half cell size, since saga is center based, not corner based
                halfcell = self.getOutputCellsize() / 2
                offset = [halfcell, -halfcell, halfcell, -halfcell]
                values = param.value.split(",")
                for i in range(4):
                    command+=(" -" + self.extentParamNames[i] + " " + str(float(values[i]) + offset[i]));
#.........这里部分代码省略.........