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269 lines
11 KiB
Python
269 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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gdalcalc.py
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---------------------
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Date : Janaury 2015
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Copyright : (C) 2015 by Giovanni Manghi
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Email : giovanni dot manghi at naturalgis dot pt
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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__ = 'Giovanni Manghi'
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__date__ = 'January 2015'
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__copyright__ = '(C) 2015, Giovanni Manghi'
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from qgis.core import (QgsProcessingException,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterRasterLayer,
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QgsProcessingParameterBand,
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QgsProcessingParameterNumber,
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QgsProcessingParameterEnum,
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QgsProcessingParameterString,
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QgsProcessingParameterRasterDestination)
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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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from processing.tools.system import isWindows
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class gdalcalc(GdalAlgorithm):
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INPUT_A = 'INPUT_A'
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INPUT_B = 'INPUT_B'
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INPUT_C = 'INPUT_C'
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INPUT_D = 'INPUT_D'
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INPUT_E = 'INPUT_E'
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INPUT_F = 'INPUT_F'
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BAND_A = 'BAND_A'
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BAND_B = 'BAND_B'
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BAND_C = 'BAND_C'
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BAND_D = 'BAND_D'
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BAND_E = 'BAND_E'
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BAND_F = 'BAND_F'
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FORMULA = 'FORMULA'
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OUTPUT = 'OUTPUT'
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NO_DATA = 'NO_DATA'
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OPTIONS = 'OPTIONS'
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EXTRA = 'EXTRA'
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RTYPE = 'RTYPE'
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TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64']
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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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self.addParameter(
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QgsProcessingParameterRasterLayer(
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self.INPUT_A,
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self.tr('Input layer A'),
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optional=False))
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self.addParameter(
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QgsProcessingParameterBand(
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self.BAND_A,
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self.tr('Number of raster band for A'),
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parentLayerParameterName=self.INPUT_A))
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self.addParameter(
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QgsProcessingParameterRasterLayer(
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self.INPUT_B,
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self.tr('Input layer B'),
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optional=True))
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self.addParameter(
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QgsProcessingParameterBand(
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self.BAND_B,
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self.tr('Number of raster band for B'),
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parentLayerParameterName=self.INPUT_B,
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optional=True))
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self.addParameter(
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QgsProcessingParameterRasterLayer(
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self.INPUT_C,
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self.tr('Input layer C'),
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optional=True))
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self.addParameter(
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QgsProcessingParameterBand(self.BAND_C,
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self.tr('Number of raster band for C'),
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parentLayerParameterName=self.INPUT_C,
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optional=True))
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self.addParameter(
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QgsProcessingParameterRasterLayer(
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self.INPUT_D,
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self.tr('Input layer D'),
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optional=True))
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self.addParameter(
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QgsProcessingParameterBand(
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self.BAND_D,
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self.tr('Number of raster band for D'),
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parentLayerParameterName=self.INPUT_D,
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optional=True))
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self.addParameter(
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QgsProcessingParameterRasterLayer(
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self.INPUT_E,
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self.tr('Input layer E'),
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optional=True))
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self.addParameter(
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QgsProcessingParameterBand(
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self.BAND_E,
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self.tr('Number of raster band for E'),
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parentLayerParameterName=self.INPUT_E,
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optional=True))
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self.addParameter(
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QgsProcessingParameterRasterLayer(
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self.INPUT_F,
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self.tr('Input layer F'),
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optional=True))
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self.addParameter(
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QgsProcessingParameterBand(
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self.BAND_F,
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self.tr('Number of raster band for F'),
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parentLayerParameterName=self.INPUT_F,
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optional=True))
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self.addParameter(
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QgsProcessingParameterString(
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self.FORMULA,
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self.tr('Calculation in gdalnumeric syntax using +-/* or any numpy array functions (i.e. logical_and())'),
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'A*2',
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optional=False))
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self.addParameter(
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QgsProcessingParameterNumber(
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self.NO_DATA,
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self.tr('Set output nodata value'),
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type=QgsProcessingParameterNumber.Double,
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defaultValue=None,
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optional=True))
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self.addParameter(
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QgsProcessingParameterEnum(
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self.RTYPE,
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self.tr('Output raster type'),
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options=self.TYPE,
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defaultValue=5))
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options_param = QgsProcessingParameterString(self.OPTIONS,
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self.tr('Additional creation options'),
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defaultValue='',
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optional=True)
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options_param.setFlags(options_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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options_param.setMetadata({
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'widget_wrapper': {
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'class': 'processing.algs.gdal.ui.RasterOptionsWidget.RasterOptionsWidgetWrapper'}})
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self.addParameter(options_param)
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extra_param = QgsProcessingParameterString(self.EXTRA,
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self.tr('Additional command-line parameters'),
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defaultValue=None,
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optional=True)
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extra_param.setFlags(extra_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(extra_param)
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self.addParameter(
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QgsProcessingParameterRasterDestination(
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self.OUTPUT,
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self.tr('Calculated')))
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def name(self):
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return 'rastercalculator'
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def displayName(self):
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return self.tr('Raster calculator')
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def group(self):
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return self.tr('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 'gdal_calc' if isWindows() else 'gdal_calc.py'
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
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self.setOutputValue(self.OUTPUT, out)
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formula = self.parameterAsString(parameters, self.FORMULA, context)
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if self.NO_DATA in parameters and parameters[self.NO_DATA] is not None:
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noData = self.parameterAsDouble(parameters, self.NO_DATA, context)
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else:
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noData = None
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arguments = []
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arguments.append('--calc "{}"'.format(formula))
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arguments.append('--format')
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arguments.append(GdalUtils.getFormatShortNameFromFilename(out))
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arguments.append('--type')
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arguments.append(self.TYPE[self.parameterAsEnum(parameters, self.RTYPE, context)])
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if noData is not None:
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arguments.append('--NoDataValue')
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arguments.append(noData)
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layer = self.parameterAsRasterLayer(parameters, self.INPUT_A, context)
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if layer is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT_A))
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arguments.append('-A')
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arguments.append(layer.source())
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if self.parameterAsString(parameters, self.BAND_A, context):
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arguments.append('--A_band ' + self.parameterAsString(parameters, self.BAND_A, context))
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if self.INPUT_B in parameters and parameters[self.INPUT_B] is not None:
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layer = self.parameterAsRasterLayer(parameters, self.INPUT_B, context)
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if layer is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT_B))
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arguments.append('-B')
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arguments.append(layer.source())
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if self.parameterAsString(parameters, self.BAND_B, context):
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arguments.append('--B_band ' + self.parameterAsString(parameters, self.BAND_B, context))
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if self.INPUT_C in parameters and parameters[self.INPUT_C] is not None:
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layer = self.parameterAsRasterLayer(parameters, self.INPUT_C, context)
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if layer is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT_C))
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arguments.append('-C')
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arguments.append(layer.source())
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if self.parameterAsString(parameters, self.BAND_C, context):
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arguments.append('--C_band ' + self.parameterAsString(parameters, self.BAND_C, context))
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if self.INPUT_D in parameters and parameters[self.INPUT_D] is not None:
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layer = self.parameterAsRasterLayer(parameters, self.INPUT_D, context)
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if layer is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT_D))
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arguments.append('-D')
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arguments.append(layer.source())
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if self.parameterAsString(parameters, self.BAND_D, context):
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arguments.append('--D_band ' + self.parameterAsString(parameters, self.BAND_D, context))
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if self.INPUT_E in parameters and parameters[self.INPUT_E] is not None:
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layer = self.parameterAsRasterLayer(parameters, self.INPUT_E, context)
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if layer is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT_E))
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arguments.append('-E')
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arguments.append(layer.source())
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if self.parameterAsString(parameters, self.BAND_E, context):
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arguments.append('--E_band ' + self.parameterAsString(parameters, self.BAND_E, context))
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if self.INPUT_F in parameters and parameters[self.INPUT_F] is not None:
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layer = self.parameterAsRasterLayer(parameters, self.INPUT_F, context)
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if layer is None:
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raise QgsProcessingException(self.invalidRasterError(parameters, self.INPUT_F))
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arguments.append('-F')
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arguments.append(layer.source())
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if self.parameterAsString(parameters, self.BAND_F, context):
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arguments.append('--F_band ' + self.parameterAsString(parameters, self.BAND_F, context))
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options = self.parameterAsString(parameters, self.OPTIONS, context)
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if options:
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parts = options.split('|')
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for p in parts:
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arguments.append('--co ' + p)
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if self.EXTRA in parameters and parameters[self.EXTRA] not in (None, ''):
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extra = self.parameterAsString(parameters, self.EXTRA, context)
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arguments.append(extra)
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arguments.append('--outfile')
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arguments.append(out)
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return [self.commandName(), GdalUtils.escapeAndJoin(arguments)]
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