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2951afa324
Also allow feature based algorithms to customise their appectable input layers types and set suitable filters for all applicable algorithms
73 lines
2.6 KiB
Python
73 lines
2.6 KiB
Python
# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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DensifyGeometriesInterval.py by Anita Graser, Dec 2012
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based on DensifyGeometries.py
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---------------------
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Date : October 2012
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Copyright : (C) 2012 by Victor Olaya
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Email : volayaf 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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from builtins import range
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__author__ = 'Anita Graser'
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__date__ = 'Dec 2012'
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__copyright__ = '(C) 2012, Anita Graser'
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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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from qgis.core import (QgsProcessingParameterNumber,
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QgsProcessing)
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from processing.algs.qgis.QgisAlgorithm import QgisFeatureBasedAlgorithm
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class DensifyGeometriesInterval(QgisFeatureBasedAlgorithm):
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INTERVAL = 'INTERVAL'
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def group(self):
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return self.tr('Vector geometry')
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def __init__(self):
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super().__init__()
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self.interval = None
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def initParameters(self, config=None):
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self.addParameter(QgsProcessingParameterNumber(self.INTERVAL,
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self.tr('Interval between vertices to add'), QgsProcessingParameterNumber.Double,
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1, False, 0, 10000000))
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def name(self):
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return 'densifygeometriesgivenaninterval'
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def displayName(self):
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return self.tr('Densify geometries given an interval')
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def outputName(self):
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return self.tr('Densified')
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def inputLayerTypes(self):
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return [QgsProcessing.TypeVectorLine, QgsProcessing.TypeVectorPolygon]
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def prepareAlgorithm(self, parameters, context, feedback):
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interval = self.parameterAsDouble(parameters, self.INTERVAL, context)
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return True
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def processFeature(self, feature, feedback):
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if feature.hasGeometry():
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new_geometry = feature.geometry().densifyByDistance(float(interval))
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feature.setGeometry(new_geometry)
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return feature
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