mirror of
https://github.com/qgis/QGIS.git
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164 lines
7.6 KiB
Python
164 lines
7.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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merge.py
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---------------------
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Date : October 2014
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Copyright : (C) 2014 by Radoslaw Guzinski
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Email : rmgu at dhi-gras 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__ = 'Radoslaw Guzinski'
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__date__ = 'October 2014'
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__copyright__ = '(C) 2014, Radoslaw Guzinski'
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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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import os
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from qgis.PyQt.QtCore import QCoreApplication
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from qgis.PyQt.QtGui import QIcon
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from qgis.core import (QgsProcessingAlgorithm,
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QgsProcessing,
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QgsProcessingParameterDefinition,
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QgsProperty,
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QgsProcessingParameterMultipleLayers,
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QgsProcessingParameterEnum,
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QgsProcessingParameterBoolean,
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QgsProcessingParameterRasterDestination,
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QgsProcessingParameterCrs,
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QgsProcessingOutputLayerDefinition,
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QgsProcessingUtils)
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from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
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from processing.algs.gdal.GdalUtils import GdalUtils
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class buildvrt(GdalAlgorithm):
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INPUT = 'INPUT'
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OUTPUT = 'OUTPUT'
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RESOLUTION = 'RESOLUTION'
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SEPARATE = 'SEPARATE'
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PROJ_DIFFERENCE = 'PROJ_DIFFERENCE'
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ADD_ALPHA = 'ADD_ALPHA'
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ASSIGN_CRS = 'ASSIGN_CRS'
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RESAMPLING = 'RESAMPLING'
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RESOLUTION_OPTIONS = ['average', 'highest', 'lowest']
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RESAMPLING_OPTIONS = ['nearest', 'bilinear', 'cubic', 'cubicspline', 'lanczos', 'average', 'mode']
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def __init__(self):
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super().__init__()
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def initAlgorithm(self, config=None):
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class ParameterVrtDestination(QgsProcessingParameterRasterDestination):
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def __init__(self, name, description):
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super().__init__(name, description)
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def clone(self):
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copy = ParameterVrtDestination(self.name(), self.description())
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return copy
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def type(self):
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return 'vrt_destination'
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def defaultFileExtension(self):
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return 'vrt'
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self.addParameter(QgsProcessingParameterMultipleLayers(self.INPUT,
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QCoreApplication.translate("ParameterVrtDestination", 'Input layers'),
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QgsProcessing.TypeRaster))
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self.addParameter(QgsProcessingParameterEnum(self.RESOLUTION,
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QCoreApplication.translate("ParameterVrtDestination", 'Resolution'),
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options=self.RESOLUTION_OPTIONS,
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defaultValue=0))
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self.addParameter(QgsProcessingParameterBoolean(self.SEPARATE,
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QCoreApplication.translate("ParameterVrtDestination", 'Place each input file into a separate band'),
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defaultValue=True))
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self.addParameter(QgsProcessingParameterBoolean(self.PROJ_DIFFERENCE,
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QCoreApplication.translate("ParameterVrtDestination", 'Allow projection difference'),
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defaultValue=False))
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add_alpha_param = QgsProcessingParameterBoolean(self.ADD_ALPHA,
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QCoreApplication.translate("ParameterVrtDestination", 'Add alpha mask band to VRT when source raster has none'),
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defaultValue=False)
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add_alpha_param.setFlags(add_alpha_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(add_alpha_param)
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assign_crs = QgsProcessingParameterCrs(self.ASSIGN_CRS,
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QCoreApplication.translate("ParameterVrtDestination", 'Override projection for the output file'),
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defaultValue=None, optional=True)
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assign_crs.setFlags(assign_crs.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(assign_crs)
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resampling = QgsProcessingParameterEnum(self.RESAMPLING,
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QCoreApplication.translate("ParameterVrtDestination", 'Resampling algorithm'),
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options=self.RESAMPLING_OPTIONS,
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defaultValue=0)
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resampling.setFlags(resampling.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(resampling)
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self.addParameter(ParameterVrtDestination(self.OUTPUT, QCoreApplication.translate("ParameterVrtDestination", 'Virtual')))
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def name(self):
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return 'buildvirtualraster'
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def displayName(self):
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return QCoreApplication.translate("buildvrt", 'Build virtual raster')
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def icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'vrt.png'))
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def group(self):
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return QCoreApplication.translate("buildvrt", 'Raster miscellaneous')
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def groupId(self):
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return 'rastermiscellaneous'
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def commandName(self):
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return "gdalbuildvrt"
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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arguments = []
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arguments.append('-resolution')
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arguments.append(self.RESOLUTION_OPTIONS[self.parameterAsEnum(parameters, self.RESOLUTION, context)])
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if self.parameterAsBool(parameters, buildvrt.SEPARATE, context):
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arguments.append('-separate')
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if self.parameterAsBool(parameters, buildvrt.PROJ_DIFFERENCE, context):
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arguments.append('-allow_projection_difference')
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if self.parameterAsBool(parameters, buildvrt.ADD_ALPHA, context):
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arguments.append('-addalpha')
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crs = self.parameterAsCrs(parameters, self.ASSIGN_CRS, context)
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if crs.isValid():
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arguments.append('-a_srs')
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arguments.append(GdalUtils.gdal_crs_string(crs))
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arguments.append('-r')
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arguments.append(self.RESAMPLING_OPTIONS[self.parameterAsEnum(parameters, self.RESAMPLING, context)])
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# Always write input files to a text file in case there are many of them and the
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# length of the command will be longer then allowed in command prompt
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list_file = GdalUtils.writeLayerParameterToTextFile(filename='buildvrtInputFiles.txt', alg=self, parameters=parameters, parameter_name=self.INPUT, context=context, executing=executing, quote=False)
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arguments.append('-input_file_list')
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arguments.append(list_file)
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out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
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arguments.append(out)
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return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
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