def getSafeExportedLayers(self):
'''Returns not the value entered by the user, but a string with semicolon-separated filenames
which contains the data of the selected layers, but saved in a standard format (currently
shapefiles for vector layers and GeoTiff for raster) so that they can be opened by most
external applications.
If there is a selection and SEXTANTE is configured to use just the selection, if exports
the layer even if it is already in a suitable format.
Works only if the layer represented by the parameter value is currently loaded in QGIS.
Otherwise, it will not perform any export and return the current value string.
If the current value represents a layer in a suitable format, it does no export at all
and returns that value.
Currently, it works just for vector layer. In the case of raster layers, it returns the
parameter value.
The layers are exported just the first time the method is called. The method can be called
several times and it will always return the same string, performing the export only the first time.'''
if self.exported:
return self.exported
self.exported = self.value
layers = self.value.split(";")
if layers == None or len(layers) == 0:
return self.value
if self.datatype == ParameterMultipleInput.TYPE_RASTER:
for layerfile in layers:
layer = QGisLayers.getObjectFromUri(layerfile, False)
if layer:
filename = LayerExporter.exportRasterLayer(layer)
self.exported = self.exported.replace(layerfile, filename)
return self.exported
else:
for layerfile in layers:
layer = QGisLayers.getObjectFromUri(layerfile, False)
if layer:
filename = LayerExporter.exportVectorLayer(layer)
self.exported = self.exported.replace(layerfile, filename)
return self.exported
def exportVectorLayer(self, orgFilename):
#only export to an intermediate shp if the layer is not file-based.
#We assume that almost all file formats will be supported by ogr
#We also export if there is a selection
if not os.path.exists(orgFilename):
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
filename = LayerExporter.exportVectorLayer(layer)
else:
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
useSelection = SextanteConfig.getSetting(SextanteConfig.USE_SELECTED)
if useSelection and layer.selectedFeatureCount() != 0:
filename = LayerExporter.exportVectorLayer(layer)
else:
filename = orgFilename
else:
filename = orgFilename
destFilename = self.getTempFilename()
self.exportedLayers[orgFilename]= destFilename
command = "v.in.ogr"
command += " min_area=-1"
command +=" dsn=\"" + os.path.dirname(filename) + "\""
command +=" layer=" + os.path.basename(filename)[:-4]
command +=" output=" + destFilename;
command +=" --overwrite -o"
return command
def exportVectorLayer(self, orgFilename):
#only export to an intermediate shp if the layer is not file-based.
#We assume that almost all file formats will be supported by ogr
#We also export if there is a selection
if not os.path.exists(orgFilename):
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
filename = LayerExporter.exportVectorLayer(layer)
else:
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
useSelection = SextanteConfig.getSetting(
SextanteConfig.USE_SELECTED)
if useSelection and layer.selectedFeatureCount() != 0:
filename = LayerExporter.exportVectorLayer(layer)
else:
filename = orgFilename
else:
filename = orgFilename
destFilename = self.getTempFilename()
self.exportedLayers[orgFilename] = destFilename
command = "v.in.ogr"
command += " min_area=-1"
command += " dsn=\"" + os.path.dirname(filename) + "\""
command += " layer=" + os.path.basename(filename)[:-4]
command += " output=" + destFilename
command += " --overwrite -o"
return command
def getSafeExportedLayers(self):
'''Returns not the value entered by the user, but a string with semicolon-separated filenames
which contains the data of the selected layers, but saved in a standard format (currently
shapefiles for vector layers and GeoTiff for raster) so that they can be opened by most
external applications.
If there is a selection and SEXTANTE is configured to use just the selection, if exports
the layer even if it is already in a suitable format.
Works only if the layer represented by the parameter value is currently loaded in QGIS.
Otherwise, it will not perform any export and return the current value string.
If the current value represents a layer in a suitable format, it does no export at all
and returns that value.
Currently, it works just for vector layer. In the case of raster layers, it returns the
parameter value.
The layers are exported just the first time the method is called. The method can be called
several times and it will always return the same string, performing the export only the first time.'''
if self.exported:
return self.exported
self.exported = self.value
layers = self.value.split(";")
if layers == None or len(layers) == 0:
return self.value
if self.datatype == ParameterMultipleInput.TYPE_RASTER:
for layerfile in layers:
layer = QGisLayers.getObjectFromUri(layerfile, False)
if layer:
filename = LayerExporter.exportRasterLayer(layer)
self.exported = self.exported.replace(layerfile, filename)
return self.exported
else:
for layerfile in layers:
layer = QGisLayers.getObjectFromUri(layerfile, False)
if layer:
filename = LayerExporter.exportVectorLayer(layer)
self.exported = self.exported.replace(layerfile, filename)
return self.exported
def exportVectorLayer(self, orgFilename):
#TODO: improve this. We are now exporting if it is not a shapefile,
#but the functionality of v.in.ogr could be used for this.
#We also export if there is a selection
if not os.path.exists(orgFilename) or not orgFilename.endswith("shp"):
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
filename = LayerExporter.exportVectorLayer(layer)
else:
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
useSelection = SextanteConfig.getSetting(SextanteConfig.USE_SELECTED)
if useSelection and layer.selectedFeatureCount() != 0:
filename = LayerExporter.exportVectorLayer(layer)
else:
filename = orgFilename
else:
filename = orgFilename
destFilename = self.getTempFilename()
self.exportedLayers[orgFilename]= destFilename
command = "v.in.ogr"
min_area = self.getParameterValue(self.GRASS_MIN_AREA_PARAMETER);
command += " min_area=" + str(min_area)
snap = self.getParameterValue(self.GRASS_SNAP_TOLERANCE_PARAMETER);
command += " snap=" + str(snap)
command += " dsn=\"" + os.path.dirname(filename) + "\""
command += " layer=" + os.path.basename(filename)[:-4]
command += " output=" + destFilename;
command += " --overwrite -o"
return command
def exportVectorLayer(self, orgFilename):
#TODO: improve this. We are now exporting if it is not a shapefile,
#but the functionality of v.in.ogr could be used for this.
#We also export if there is a selection
if not os.path.exists(orgFilename) or not orgFilename.endswith("shp"):
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
filename = LayerExporter.exportVectorLayer(layer)
else:
layer = QGisLayers.getObjectFromUri(orgFilename, False)
if layer:
useSelection = SextanteConfig.getSetting(
SextanteConfig.USE_SELECTED)
if useSelection and layer.selectedFeatureCount() != 0:
filename = LayerExporter.exportVectorLayer(layer)
else:
filename = orgFilename
else:
filename = orgFilename
destFilename = self.getTempFilename()
self.exportedLayers[orgFilename] = destFilename
command = "v.in.ogr"
min_area = self.getParameterValue(self.GRASS_MIN_AREA_PARAMETER)
command += " min_area=" + str(min_area)
snap = self.getParameterValue(self.GRASS_SNAP_TOLERANCE_PARAMETER)
command += " snap=" + str(snap)
command += " dsn=\"" + os.path.dirname(filename) + "\""
command += " layer=" + os.path.basename(filename)[:-4]
command += " output=" + destFilename
command += " --overwrite -o"
return command
def processAlgorithm(self, progress):
self.createCatalog()
inputFilename = self.getParameterValue(self.INPUT)
layer = QGisLayers.getObjectFromUri(inputFilename)
workspaceName = self.getParameterValue(self.WORKSPACE)
filename = LayerExporter.exportVectorLayer(layer)
basefilename = os.path.basename(filename)
basepathname = os.path.dirname(filename) + os.sep + basefilename[:basefilename.find('.')]
connection = {
'shp': basepathname + '.shp',
'shx': basepathname + '.shx',
'dbf': basepathname + '.dbf',
'prj': basepathname + '.prj'
}
workspace = self.catalog.get_workspace(workspaceName)
self.catalog.create_featurestore(basefilename, connection, workspace)
def processAlgorithm(self, progress):
self.createCatalog()
inputFilename = self.getParameterValue(self.INPUT)
layer = QGisLayers.getObjectFromUri(inputFilename)
workspaceName = self.getParameterValue(self.WORKSPACE)
filename = LayerExporter.exportVectorLayer(layer)
basefilename = os.path.basename(filename)
basepathname = os.path.dirname(filename) + os.sep + basefilename[:basefilename.find('.')]
connection = {
'shp': basepathname + '.shp',
'shx': basepathname + '.shx',
'dbf': basepathname + '.dbf',
'prj': basepathname + '.prj'
}
workspace = self.catalog.get_workspace(workspaceName)
self.catalog.create_featurestore(basefilename, connection, workspace)
def getSafeExportedTable(self):
'''Returns not the value entered by the user, but a string with a filename which
contains the data of this table, but saved in a standard format (currently always
a dbf file) so that it can be opened by most external applications.
Works only if the table represented by the parameter value is currently loaded in QGIS.
Otherwise, it will not perform any export and return the current value string.
If the current value represents a table in a suitable format, it does not export at all
and returns that value.
The table is exported just the first time the method is called. The method can be called
several times and it will always return the same file, performing the export only the first time.'''
if self.exported:
return self.exported
table = QGisLayers.getObjectFromUri(self.value, False)
if table:
self.exported = LayerExporter.exportTable(table)
else:
self.exported = self.value
return self.exported
def getSafeExportedTable(self):
'''Returns not the value entered by the user, but a string with a filename which
contains the data of this table, but saved in a standard format (currently always
a dbf file) so that it can be opened by most external applications.
Works only if the table represented by the parameter value is currently loaded in QGIS.
Otherwise, it will not perform any export and return the current value string.
If the current value represents a table in a suitable format, it does not export at all
and returns that value.
The table is exported just the first time the method is called. The method can be called
several times and it will always return the same file, performing the export only the first time.'''
if self.exported:
return self.exported
table = QGisLayers.getObjectFromUri(self.value, False)
if table:
self.exported = LayerExporter.exportTable(table)
else:
self.exported = self.value
return self.exported
def getSafeExportedLayer(self):
'''Returns not the value entered by the user, but a string with a filename which
contains the data of this layer, but saved in a standard format (currently always
a shapefile) so that it can be opened by most external applications.
If there is a selection and SEXTANTE is configured to use just the selection, if exports
the layer even if it is already in a suitable format.
Works only if the layer represented by the parameter value is currently loaded in QGIS.
Otherwise, it will not perform any export and return the current value string.
If the current value represents a layer in a suitable format, it does not export at all
and returns that value.
The layer is exported just the first time the method is called. The method can be called
several times and it will always return the same file, performing the export only the first time.'''
if self.exported:
return self.exported
layer = QGisLayers.getObjectFromUri(self.value, False)
if layer:
self.exported = LayerExporter.exportVectorLayer(layer)
else:
self.exported = self.value
return self.exported
def getSafeExportedLayer(self):
'''Returns not the value entered by the user, but a string with a filename which
contains the data of this layer, but saved in a standard format (currently always
a shapefile) so that it can be opened by most external applications.
If there is a selection and SEXTANTE is configured to use just the selection, if exports
the layer even if it is already in a suitable format.
Works only if the layer represented by the parameter value is currently loaded in QGIS.
Otherwise, it will not perform any export and return the current value string.
If the current value represents a layer in a suitable format, it does not export at all
and returns that value.
The layer is exported just the first time the method is called. The method can be called
several times and it will always return the same file, performing the export only the first time.'''
if self.exported:
return self.exported
layer = QGisLayers.getObjectFromUri(self.value, False)
if layer:
self.exported = LayerExporter.exportVectorLayer(layer)
else:
self.exported = self.value
return self.exported
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() or SextanteUtils.isMac():
command = self.undecoratedGroup + " \"" + self.cmdname + "\""
else:
command = "lib" + self.undecoratedGroup + " \"" + self.cmdname + "\""
if self.hardcodedStrings:
for s in self.hardcodedStrings:
command += " " + s
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]))
elif isinstance(param, (ParameterNumber, ParameterSelection)):
command += (" -" + param.name + " " + str(param.value))
else:
command += (" -" + param.name + " \"" + str(param.value) +
"\"")
for out in self.outputs:
if isinstance(out, OutputRaster):
filename = out.getCompatibleFileName(self)
filename = SextanteUtils.tempFolder(
) + os.sep + os.path.basename(filename) + ".sgrd"
command += (" -" + out.name + " \"" + filename + "\"")
if isinstance(out, OutputVector):
filename = out.getCompatibleFileName(self)
command += (" -" + out.name + " \"" + filename + "\"")
if isinstance(out, OutputTable):
filename = out.getCompatibleFileName(self)
command += (" -" + out.name + " \"" + filename + "\"")
commands.append(command)
#3:Export resulting raster layers
for out in self.outputs:
if isinstance(out, OutputRaster):
filename = out.getCompatibleFileName(self)
filename2 = SextanteUtils.tempFolder(
) + os.sep + os.path.basename(filename) + ".sgrd"
if SextanteUtils.isWindows() or SextanteUtils.isMac():
commands.append("io_gdal 1 -GRIDS \"" + filename2 +
"\" -FORMAT 1 -TYPE 0 -FILE \"" +
filename + "\"")
else:
commands.append("libio_gdal 1 -GRIDS \"" + filename2 +
"\" -FORMAT 1 -TYPE 0 -FILE \"" +
filename + "\"")
#4 Run SAGA
SagaUtils.createSagaBatchJobFileFromSagaCommands(commands)
loglines = []
loglines.append("SAGA execution commands")
for line in commands:
progress.setCommand(line)
loglines.append(line)
if SextanteConfig.getSetting(SagaUtils.SAGA_LOG_COMMANDS):
SextanteLog.addToLog(SextanteLog.LOG_INFO, loglines)
SagaUtils.executeSaga(progress)
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]));
elif isinstance(param, (ParameterNumber, ParameterSelection)):
command+=(" -" + param.name + " " + str(param.value));
else:
command+=(" -" + param.name + " \"" + str(param.value) + "\"");
for out in self.outputs:
if isinstance(out, OutputRaster):
filename = out.getCompatibleFileName(self)#filename = out.value
#===============================================================
# if not filename.endswith(".tif"):
# filename += ".tif"
# out.value = filename
#===============================================================
filename = SextanteUtils.tempFolder() + os.sep + os.path.basename(filename) + ".sgrd"
command+=(" -" + out.name + " \"" + filename + "\"");
if isinstance(out, OutputVector):
filename = out.getCompatibleFileName(self)#out.value
#===============================================================
# if not filename.endswith(".shp"):
# filename += ".shp"
# out.value = filename
#===============================================================
command+=(" -" + out.name + " \"" + filename + "\"");
if isinstance(out, OutputTable):
filename = out.getCompatibleFileName(self)#out.value
#===============================================================
# if not filename.endswith(".dbf"):
# filename += ".dbf"
# out.value = filename
#===============================================================
command+=(" -" + out.name + " \"" + filename + "\"");
commands.append(command)
#3:Export resulting raster layers
for out in self.outputs:
if isinstance(out, OutputRaster):
filename = out.getCompatibleFileName(self)
filename2 = SextanteUtils.tempFolder() + os.sep + os.path.basename(filename) + ".sgrd"
if SextanteUtils.isWindows():
commands.append("io_gdal 1 -GRIDS \"" + filename2 + "\" -FORMAT 1 -TYPE 0 -FILE \"" + filename + "\"");
else:
commands.append("libio_gdal 1 -GRIDS \"" + filename2 + "\" -FORMAT 1 -TYPE 0 -FILE \"" + filename + "\"");
#4 Run SAGA
SagaUtils.createSagaBatchJobFileFromSagaCommands(commands)
loglines = []
loglines.append("SAGA execution commands")
for line in commands:
progress.setCommand(line)
loglines.append(line)
if SextanteConfig.getSetting(SagaUtils.SAGA_LOG_COMMANDS):
SextanteLog.addToLog(SextanteLog.LOG_INFO, loglines)
SagaUtils.executeSaga(progress);
