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87 lines
2.8 KiB
Python
87 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SetZValue.py
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--------------
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Date : July 2017
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Copyright : (C) 2017 by Nyall Dawson
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Email : nyall dot dawson 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__ = 'Nyall Dawson'
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__date__ = 'July 2017'
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__copyright__ = '(C) 2017, Nyall Dawson'
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# This will get replaced with a git SHA1 when you do a git archive323
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__revision__ = '$Format:%H$'
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import os
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from qgis.core import (QgsGeometry,
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QgsWkbTypes,
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QgsProcessingParameterNumber)
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from processing.algs.qgis.QgisAlgorithm import QgisFeatureBasedAlgorithm
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class SetZValue(QgisFeatureBasedAlgorithm):
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Z_VALUE = 'Z_VALUE'
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def group(self):
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return self.tr('Vector geometry tools')
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def __init__(self):
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super().__init__()
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self.z_value = 0
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def name(self):
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return 'setzvalue'
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def displayName(self):
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return self.tr('Set Z Value')
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def outputName(self):
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return self.tr('Z Added')
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def tags(self):
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return self.tr('set,add,z,25d,3d,values').split(',')
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def initParameters(self, config=None):
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self.addParameter(QgsProcessingParameterNumber(self.Z_VALUE,
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self.tr('Z Value'), QgsProcessingParameterNumber.Double, defaultValue=0.0))
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def outputWkbType(self, inputWkb):
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return QgsWkbTypes.addZ(inputWkb)
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def prepareAlgorithm(self, parameters, context, feedback):
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self.z_value = self.parameterAsDouble(parameters, self.Z_VALUE, context)
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return True
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def processFeature(self, feature, feedback):
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input_geometry = feature.geometry()
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if input_geometry:
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new_geom = input_geometry.geometry().clone()
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if QgsWkbTypes.hasZ(new_geom.wkbType()):
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# addZValue won't alter existing Z values, so drop them first
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new_geom.dropZValue()
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new_geom.addZValue(self.z_value)
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feature.setGeometry(QgsGeometry(new_geom))
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return feature
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