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250 lines
11 KiB
Python
250 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SagaAlgorithm213.py
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---------------------
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Date : December 2014
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Copyright : (C) 2014 by Victor Olaya
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Email : volayaf at gmail dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************
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"""
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__author__ = 'Victor Olaya'
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__date__ = 'December 2014'
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__copyright__ = '(C) 2014, Victor Olaya'
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# This will get replaced with a git SHA1 when you do a git archive
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__revision__ = '$Format:%H$'
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from qgis.core import *
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from SagaAlgorithm212 import SagaAlgorithm212
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from processing.core.ProcessingConfig import ProcessingConfig
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from processing.core.ProcessingLog import ProcessingLog
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from processing.core.GeoAlgorithmExecutionException import \
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GeoAlgorithmExecutionException
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from processing.core.parameters import *
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from processing.core.outputs import *
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import SagaUtils
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from processing.tools import dataobjects
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from processing.tools.system import *
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sessionExportedLayers = {}
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class SagaAlgorithm213(SagaAlgorithm212):
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OUTPUT_EXTENT = 'OUTPUT_EXTENT'
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def getCopy(self):
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newone = SagaAlgorithm213(self.descriptionFile)
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newone.provider = self.provider
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return newone
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def processAlgorithm(self, progress):
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commands = list()
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self.exportedLayers = {}
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self.preProcessInputs()
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# 1: Export rasters to sgrd and vectors to shp
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# Tables must be in dbf format. We check that.
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for param in self.parameters:
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if isinstance(param, ParameterRaster):
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if param.value is None:
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continue
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value = param.value
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if not value.endswith('sgrd'):
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exportCommand = self.exportRasterLayer(value)
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if exportCommand is not None:
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commands.append(exportCommand)
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if isinstance(param, ParameterVector):
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if param.value is None:
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continue
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layer = dataobjects.getObjectFromUri(param.value, False)
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if layer:
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filename = dataobjects.exportVectorLayer(layer)
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self.exportedLayers[param.value] = filename
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elif not param.value.endswith('shp'):
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raise GeoAlgorithmExecutionException(
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'Unsupported file format')
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if isinstance(param, ParameterTable):
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if param.value is None:
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continue
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table = dataobjects.getObjectFromUri(param.value, False)
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if table:
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filename = dataobjects.exportTable(table)
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self.exportedLayers[param.value] = filename
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elif not param.value.endswith('shp'):
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raise GeoAlgorithmExecutionException(
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'Unsupported file format')
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if isinstance(param, ParameterMultipleInput):
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if param.value is None:
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continue
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layers = param.value.split(';')
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if layers is None or len(layers) == 0:
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continue
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if param.datatype == ParameterMultipleInput.TYPE_RASTER:
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for layerfile in layers:
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if not layerfile.endswith('sgrd'):
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exportCommand = self.exportRasterLayer(layerfile)
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if exportCommand is not None:
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commands.append(exportCommand)
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elif param.datatype == ParameterMultipleInput.TYPE_VECTOR_ANY:
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for layerfile in layers:
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layer = dataobjects.getObjectFromUri(layerfile, False)
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if layer:
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filename = dataobjects.exportVectorLayer(layer)
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self.exportedLayers[layerfile] = filename
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elif not layerfile.endswith('shp'):
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raise GeoAlgorithmExecutionException(
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'Unsupported file format')
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# 2: Set parameters and outputs
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command = self.undecoratedGroup + ' "' + self.cmdname + '"'
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if self.hardcodedStrings:
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for s in self.hardcodedStrings:
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command += ' ' + s
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for param in self.parameters:
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if param.value is None:
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continue
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if isinstance(param, (ParameterRaster, ParameterVector,
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ParameterTable)):
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value = param.value
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if value in self.exportedLayers.keys():
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command += ' -' + param.name + ' "' \
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+ self.exportedLayers[value] + '"'
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else:
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command += ' -' + param.name + ' "' + value + '"'
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elif isinstance(param, ParameterMultipleInput):
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s = param.value
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for layer in self.exportedLayers.keys():
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s = s.replace(layer, self.exportedLayers[layer])
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command += ' -' + param.name + ' "' + s + '"'
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elif isinstance(param, ParameterBoolean):
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if param.value:
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command += ' -' + param.name.strip() + " true"
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else:
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command += ' -' + param.name.strip() + " false"
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elif isinstance(param, ParameterFixedTable):
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tempTableFile = getTempFilename('txt')
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f = open(tempTableFile, 'w')
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f.write('\t'.join([col for col in param.cols]) + '\n')
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values = param.value.split(',')
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for i in range(0, len(values), 3):
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s = values[i] + '\t' + values[i + 1] + '\t' + values[i
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+ 2] + '\n'
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f.write(s)
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f.close()
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command += ' -' + param.name + ' "' + tempTableFile + '"'
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elif isinstance(param, ParameterExtent):
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# 'We have to substract/add half cell size, since SAGA is
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# center based, not corner based
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halfcell = self.getOutputCellsize() / 2
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offset = [halfcell, -halfcell, halfcell, -halfcell]
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values = param.value.split(',')
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for i in range(4):
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command += ' -' + self.extentParamNames[i] + ' ' \
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+ str(float(values[i]) + offset[i])
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elif isinstance(param, (ParameterNumber, ParameterSelection)):
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command += ' -' + param.name + ' ' + str(param.value)
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else:
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command += ' -' + param.name + ' "' + str(param.value) + '"'
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for out in self.outputs:
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if isinstance(out, OutputRaster):
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filename = out.getCompatibleFileName(self)
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filename += '.sgrd'
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command += ' -' + out.name + ' "' + filename + '"'
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if isinstance(out, OutputVector):
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filename = out.getCompatibleFileName(self)
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command += ' -' + out.name + ' "' + filename + '"'
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if isinstance(out, OutputTable):
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filename = out.getCompatibleFileName(self)
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command += ' -' + out.name + ' "' + filename + '"'
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commands.append(command)
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# 3: Export resulting raster layers
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optim = ProcessingConfig.getSetting(
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SagaUtils.SAGA_IMPORT_EXPORT_OPTIMIZATION)
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for out in self.outputs:
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if isinstance(out, OutputRaster):
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filename = out.getCompatibleFileName(self)
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filename2 = filename + '.sgrd'
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formatIndex = (4 if isWindows() else 1)
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sessionExportedLayers[filename] = filename2
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dontExport = True
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# Do not export is the output is not a final output
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# of the model
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#if self.model is not None and optim:
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# for subalg in self.model.algOutputs:
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# if out.name in subalg:
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# if subalg[out.name] is not None:
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# dontExport = False
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# break
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# if dontExport:
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# continue
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if self.cmdname == 'RGB Composite':
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commands.append('io_grid_image 0 -IS_RGB -GRID:"' + filename2
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+ '" -FILE:"' + filename
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+ '"')
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else:
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commands.append('io_gdal 1 -GRIDS "' + filename2
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+ '" -FORMAT ' + str(formatIndex)
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+ ' -TYPE 0 -FILE "' + filename + '"')
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# 4: Run SAGA
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commands = self.editCommands(commands)
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SagaUtils.createSagaBatchJobFileFromSagaCommands(commands)
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loglines = []
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loglines.append('SAGA execution commands')
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for line in commands:
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progress.setCommand(line)
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loglines.append(line)
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if ProcessingConfig.getSetting(SagaUtils.SAGA_LOG_COMMANDS):
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ProcessingLog.addToLog(ProcessingLog.LOG_INFO, loglines)
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SagaUtils.executeSaga(progress)
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def exportRasterLayer(self, source):
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global sessionExportedLayers
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if source in sessionExportedLayers:
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self.exportedLayers[source] = sessionExportedLayers[source]
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return None
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layer = dataobjects.getObjectFromUri(source, False)
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if layer:
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filename = str(layer.name())
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else:
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filename = os.path.basename(source)
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validChars = \
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'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789:'
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filename = ''.join(c for c in filename if c in validChars)
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if len(filename) == 0:
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filename = 'layer'
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destFilename = getTempFilenameInTempFolder(filename + '.sgrd')
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self.exportedLayers[source] = destFilename
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sessionExportedLayers[source] = destFilename
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return 'io_gdal 0 -TRANSFORM -INTERPOL 0 -GRIDS "' + destFilename + '" -FILES "' + source + '"'
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