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[processing] restore inverse distance to a power algorithm
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python/plugins/processing/algs/gdal/GridInverseDistance.py
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| # -*- coding: utf-8 -*- | ||
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| """ | ||
| *************************************************************************** | ||
| GridInverseDistance.py | ||
| --------------------- | ||
| Date : October 2013 | ||
| Copyright : (C) 2013 by Alexander Bruy | ||
| Email : alexander dot bruy at gmail dot com | ||
| *************************************************************************** | ||
| * * | ||
| * This program is free software; you can redistribute it and/or modify * | ||
| * it under the terms of the GNU General Public License as published by * | ||
| * the Free Software Foundation; either version 2 of the License, or * | ||
| * (at your option) any later version. * | ||
| * * | ||
| *************************************************************************** | ||
| """ | ||
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| __author__ = 'Alexander Bruy' | ||
| __date__ = 'October 2013' | ||
| __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, | ||
| QgsProcessing, | ||
| QgsProcessingParameterDefinition, | ||
| QgsProcessingParameterVectorLayer, | ||
| QgsProcessingParameterEnum, | ||
| QgsProcessingParameterField, | ||
| QgsProcessingParameterNumber, | ||
| QgsProcessingParameterRasterDestination) | ||
| from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm | ||
| 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 GridInverseDistance(GdalAlgorithm): | ||
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| INPUT = 'INPUT' | ||
| Z_FIELD = 'Z_FIELD' | ||
| POWER = 'POWER' | ||
| SMOOTHING = 'SMOOTHING' | ||
| RADIUS_1 = 'RADIUS_1' | ||
| RADIUS_2 = 'RADIUS_2' | ||
| MAX_POINTS = 'MAX_POINTS' | ||
| MIN_POINTS = 'MIN_POINTS' | ||
| ANGLE = 'ANGLE' | ||
| NODATA = 'NODATA' | ||
| DATA_TYPE = 'DATA_TYPE' | ||
| OUTPUT = 'OUTPUT' | ||
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| TYPE = ['Byte', 'Int16', 'UInt16', 'UInt32', 'Int32', 'Float32', 'Float64', 'CInt16', 'CInt32', 'CFloat32', 'CFloat64'] | ||
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| def __init__(self): | ||
| super().__init__() | ||
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| def initAlgorithm(self, config=None): | ||
| self.addParameter(QgsProcessingParameterVectorLayer(self.INPUT, | ||
| self.tr('Point layer'), | ||
| [QgsProcessing.TypeVectorPoint])) | ||
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| z_field_param = QgsProcessingParameterField(self.Z_FIELD, | ||
| self.tr('Z value from field'), | ||
| None, | ||
| self.INPUT, | ||
| QgsProcessingParameterField.Numeric, | ||
| optional=True) | ||
| z_field_param.setFlags(z_field_param.flags() | QgsProcessingParameterDefinition.FlagAdvanced) | ||
| self.addParameter(z_field_param) | ||
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| self.addParameter(QgsProcessingParameterNumber(self.POWER, | ||
| self.tr('Weighting power'), | ||
| type=QgsProcessingParameterNumber.Double, | ||
| minValue=0.0, | ||
| maxValue=100.0, | ||
| defaultValue=2.0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.SMOOTHING, | ||
| self.tr('Smoothing'), | ||
| type=QgsProcessingParameterNumber.Double, | ||
| minValue=0.0, | ||
| maxValue=99999999.999999, | ||
| defaultValue=0.0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.RADIUS_1, | ||
| self.tr('The first radius of search ellipse'), | ||
| type=QgsProcessingParameterNumber.Double, | ||
| minValue=0.0, | ||
| maxValue=99999999.999999, | ||
| defaultValue=0.0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.RADIUS_2, | ||
| self.tr('The second radius of search ellipse'), | ||
| type=QgsProcessingParameterNumber.Double, | ||
| minValue=0.0, | ||
| maxValue=99999999.999999, | ||
| defaultValue=0.0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.ANGLE, | ||
| self.tr('Angle of search ellipse rotation in degrees (counter clockwise)'), | ||
| type=QgsProcessingParameterNumber.Double, | ||
| minValue=0.0, | ||
| maxValue=360.0, | ||
| defaultValue=0.0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.MAX_POINTS, | ||
| self.tr('Maximum number of data points to use'), | ||
| type=QgsProcessingParameterNumber.Integer, | ||
| minValue=0, | ||
| maxValue=99999999, | ||
| defaultValue=0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.MIN_POINTS, | ||
| self.tr('Minimum number of data points to use'), | ||
| type=QgsProcessingParameterNumber.Integer, | ||
| minValue=0, | ||
| maxValue=99999999, | ||
| defaultValue=0)) | ||
| self.addParameter(QgsProcessingParameterNumber(self.NODATA, | ||
| self.tr('NODATA marker to fill empty points'), | ||
| type=QgsProcessingParameterNumber.Double, | ||
| minValue=-99999999.999999, | ||
| maxValue=99999999.999999, | ||
| defaultValue=0.0)) | ||
| self.addParameter(QgsProcessingParameterEnum(self.DATA_TYPE, | ||
| self.tr('Output data type'), | ||
| self.TYPE, | ||
| allowMultiple=False, | ||
| defaultValue=5)) | ||
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| self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT, | ||
| self.tr('Interpolated (IDW)'))) | ||
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| def name(self): | ||
| return 'gridinversedistance' | ||
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| def displayName(self): | ||
| return self.tr('Grid (Inverse distance to a power)') | ||
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| def group(self): | ||
| return self.tr('Raster analysis') | ||
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| def icon(self): | ||
| return QIcon(os.path.join(pluginPath, 'images', 'gdaltools', 'grid.png')) | ||
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| def getConsoleCommands(self, parameters, context, feedback): | ||
| inLayer = self.parameterAsVectorLayer(parameters, self.INPUT, context) | ||
| connectionString = GdalUtils.ogrConnectionString(inLayer.source(), context) | ||
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| arguments = ['-l'] | ||
| arguments.append(GdalUtils.ogrLayerName(connectionString)) | ||
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| fieldName = self.parameterAsString(parameters, self.Z_FIELD, context) | ||
| if fieldName: | ||
| arguments.append('-zfield') | ||
| arguments.append(fieldName) | ||
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| params = 'invdist' | ||
| params += ':power={}'.format(self.parameterAsDouble(parameters, self.POWER, context)) | ||
| params += ':smothing={}'.format(self.parameterAsDouble(parameters, self.SMOOTHING, context)) | ||
| params += ':radius1={}'.format(self.parameterAsDouble(parameters, self.RADIUS_1, context)) | ||
| params += ':radius2={}'.format(self.parameterAsDouble(parameters, self.RADIUS_2, context)) | ||
| params += ':angle={}'.format(self.parameterAsDouble(parameters, self.ANGLE, context)) | ||
| params += ':max_points={}'.format(self.parameterAsInt(parameters, self.MAX_POINTS, context)) | ||
| params += ':min_points={}'.format(self.parameterAsInt(parameters, self.MIN_POINTS, context)) | ||
| params += ':nodata={}'.format(self.parameterAsDouble(parameters, self.NODATA, context)) | ||
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| arguments.append('-a') | ||
| arguments.append(params) | ||
| arguments.append('-ot') | ||
| arguments.append(self.TYPE[self.parameterAsEnum(parameters, self.DATA_TYPE, context)]) | ||
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| out = self.parameterAsOutputLayer(parameters, self.OUTPUT, context) | ||
| arguments.append('-of') | ||
| arguments.append(QgsRasterFileWriter.driverForExtension(os.path.splitext(out)[1])) | ||
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| arguments.append(connectionString) | ||
| arguments.append(out) | ||
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| return ['gdal_grid', GdalUtils.escapeAndJoin(arguments)] |
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