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224 lines
10 KiB
Python
224 lines
10 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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rasterize.py
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---------------------
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Date : September 2013
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Copyright : (C) 2013 by Alexander Bruy
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Email : alexander dot bruy 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__ = 'Alexander Bruy'
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__date__ = 'September 2013'
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__copyright__ = '(C) 2013, Alexander Bruy'
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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.QtGui import QIcon
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from qgis.core import (QgsRasterFileWriter,
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QgsProcessingParameterDefinition,
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QgsProcessingParameterFeatureSource,
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QgsProcessingParameterField,
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QgsProcessingParameterRasterLayer,
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QgsProcessingParameterNumber,
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QgsProcessingParameterString,
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QgsProcessingParameterEnum,
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QgsProcessingParameterExtent,
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QgsProcessingParameterBoolean,
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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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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class rasterize(GdalAlgorithm):
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INPUT = 'INPUT'
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FIELD = 'FIELD'
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BURN = 'BURN'
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WIDTH = 'WIDTH'
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HEIGHT = 'HEIGHT'
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UNITS = 'UNITS'
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NODATA = 'NODATA'
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EXTENT = 'EXTENT'
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INIT = 'INIT'
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INVERT = 'INVERT'
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ALL_TOUCH = 'ALL_TOUCH'
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OPTIONS = 'OPTIONS'
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DATA_TYPE = 'DATA_TYPE'
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OUTPUT = 'OUTPUT'
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TYPES = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64', 'CInt16', 'CInt32', 'CFloat32', 'CFloat64']
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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.units = [self.tr("Pixels"),
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self.tr("Georeferenced units")]
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self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
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self.tr('Input layer')))
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self.addParameter(QgsProcessingParameterField(self.FIELD,
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self.tr('Field to use for a burn-in value'),
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None,
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self.INPUT,
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QgsProcessingParameterField.Numeric,
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optional=True))
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self.addParameter(QgsProcessingParameterNumber(self.BURN,
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self.tr('A fixed value to burn'),
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type=QgsProcessingParameterNumber.Double,
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defaultValue=0.0,
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optional=True))
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self.addParameter(QgsProcessingParameterEnum(self.UNITS,
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self.tr('Output raster size units'),
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self.units))
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self.addParameter(QgsProcessingParameterNumber(self.WIDTH,
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self.tr('Width/Horizontal resolution'),
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type=QgsProcessingParameterNumber.Double,
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minValue=0.0,
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defaultValue=0.0))
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self.addParameter(QgsProcessingParameterNumber(self.HEIGHT,
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self.tr('Height/Vertical resolution'),
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type=QgsProcessingParameterNumber.Double,
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minValue=0.0,
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defaultValue=0.0))
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self.addParameter(QgsProcessingParameterExtent(self.EXTENT,
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self.tr('Output extent')))
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self.addParameter(QgsProcessingParameterNumber(self.NODATA,
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self.tr('Assign a specified nodata value to output bands'),
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type=QgsProcessingParameterNumber.Double,
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defaultValue=0.0,
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optional=True))
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options_param = QgsProcessingParameterString(self.OPTIONS,
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self.tr('Additional creation parameters'),
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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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dataType_param = QgsProcessingParameterEnum(self.DATA_TYPE,
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self.tr('Output data type'),
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self.TYPES,
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allowMultiple=False,
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defaultValue=5)
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dataType_param.setFlags(dataType_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(dataType_param)
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init_param = QgsProcessingParameterNumber(self.INIT,
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self.tr('Pre-initialize the output image with value'),
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type=QgsProcessingParameterNumber.Double,
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defaultValue=0.0,
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optional=True)
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init_param.setFlags(init_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(init_param)
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invert_param = QgsProcessingParameterBoolean(self.INVERT,
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self.tr('Invert rasterization'),
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defaultValue=False)
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invert_param.setFlags(invert_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced)
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self.addParameter(invert_param)
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self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT,
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self.tr('Rasterized')))
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def name(self):
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return 'rasterize'
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def displayName(self):
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return self.tr('Rasterize (vector to raster)')
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def group(self):
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return self.tr('Vector conversion')
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def groupId(self):
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return 'vectorconversion'
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def icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'rasterize.png'))
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def commandName(self):
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return 'gdal_rasterize'
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def getConsoleCommands(self, parameters, context, feedback, executing=True):
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ogrLayer, layerName = self.getOgrCompatibleSource(self.INPUT, parameters, context, feedback, executing)
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arguments = ['-l']
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arguments.append(layerName)
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fieldName = self.parameterAsString(parameters, self.FIELD, context)
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if fieldName:
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arguments.append('-a')
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arguments.append(fieldName)
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else:
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arguments.append('-burn')
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arguments.append(self.parameterAsDouble(parameters, self.BURN, context))
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units = self.parameterAsEnum(parameters, self.UNITS, context)
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if units == 0:
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arguments.append('-ts')
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else:
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arguments.append('-tr')
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arguments.append(self.parameterAsDouble(parameters, self.WIDTH, context))
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arguments.append(self.parameterAsDouble(parameters, self.HEIGHT, context))
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initValue = self.parameterAsDouble(parameters, self.INIT, context)
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if initValue:
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arguments.append('-init')
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arguments.append(initValue)
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if self.parameterAsBool(parameters, self.INVERT, context):
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arguments.append('-i')
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if self.parameterAsBool(parameters, self.ALL_TOUCH, context):
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arguments.append('-at')
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nodata = self.parameterAsDouble(parameters, self.NODATA, context)
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if nodata:
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arguments.append('-a_nodata')
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arguments.append(nodata)
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extent = self.parameterAsExtent(parameters, self.EXTENT, context)
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if not extent.isNull():
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arguments.append('-te')
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arguments.append(extent.xMinimum())
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arguments.append(extent.yMinimum())
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arguments.append(extent.xMaximum())
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arguments.append(extent.yMaximum())
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arguments.append('-ot')
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arguments.append(self.TYPES[self.parameterAsEnum(parameters, self.DATA_TYPE, context)])
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out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
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arguments.append('-of')
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arguments.append(QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1]))
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options = self.parameterAsString(parameters, self.OPTIONS, context)
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if options:
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arguments.append('-co')
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arguments.append(options)
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arguments.append(ogrLayer)
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arguments.append(out)
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return ['gdal_rasterize', GdalUtils.escapeAndJoin(arguments)]
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