mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-04 00:30:59 -05:00
102 lines
4.2 KiB
Python
102 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
FixGeometry.py
|
|
-----------------------
|
|
Date : January 2017
|
|
Copyright : (C) 2017 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. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
|
|
__author__ = 'Alexander Bruy'
|
|
__date__ = 'January 2017'
|
|
__copyright__ = '(C) 2017, Alexander Bruy'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
from qgis.core import (QgsWkbTypes,
|
|
QgsFeatureSink,
|
|
QgsFeatureRequest,
|
|
QgsProcessingFeatureSource,
|
|
QgsGeometry,
|
|
QgsProcessing,
|
|
QgsProcessingParameterFeatureSource,
|
|
QgsProcessingParameterFeatureSink)
|
|
|
|
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
|
|
|
|
|
|
class FixGeometry(QgisAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
def tags(self):
|
|
return self.tr('repair,invalid,geometry').split(',')
|
|
|
|
def group(self):
|
|
return self.tr('Vector geometry tools')
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT, self.tr('Input layer'), [QgsProcessing.TypeVectorLine, QgsProcessing.TypeVectorPolygon]))
|
|
self.addParameter(QgsProcessingParameterFeatureSink(self.OUTPUT, self.tr('Fixed geometries')))
|
|
|
|
def name(self):
|
|
return 'fixgeometries'
|
|
|
|
def displayName(self):
|
|
return self.tr('Fix geometries')
|
|
|
|
def processAlgorithm(self, parameters, context, feedback):
|
|
source = self.parameterAsSource(parameters, self.INPUT, context)
|
|
|
|
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
|
|
source.fields(), QgsWkbTypes.multiType(source.wkbType()), source.sourceCrs())
|
|
|
|
features = source.getFeatures(QgsFeatureRequest(), QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
|
|
total = 100.0 / source.featureCount() if source.featureCount() else 0
|
|
for current, inputFeature in enumerate(features):
|
|
if feedback.isCanceled():
|
|
break
|
|
|
|
outputFeature = inputFeature
|
|
if inputFeature.geometry():
|
|
outputGeometry = inputFeature.geometry().makeValid()
|
|
if not outputGeometry:
|
|
feedback.pushInfo('makeValid failed for feature {}'.format(inputFeature.id()))
|
|
|
|
if outputGeometry.wkbType() == QgsWkbTypes.Unknown or QgsWkbTypes.flatType(outputGeometry.geometry().wkbType()) == QgsWkbTypes.GeometryCollection:
|
|
tmpGeometries = outputGeometry.asGeometryCollection()
|
|
for g in tmpGeometries:
|
|
if g.type() == inputFeature.geometry().type():
|
|
try:
|
|
g.convertToMultiType()
|
|
outputFeature.setGeometry(QgsGeometry(g))
|
|
sink.addFeature(outputFeature, QgsFeatureSink.FastInsert)
|
|
except:
|
|
pass
|
|
feedback.setProgress(int(current * total))
|
|
continue
|
|
|
|
outputGeometry.convertToMultiType()
|
|
outputFeature.setGeometry(outputGeometry)
|
|
|
|
sink.addFeature(outputFeature, QgsFeatureSink.FastInsert)
|
|
feedback.setProgress(int(current * total))
|
|
|
|
return {self.OUTPUT: dest_id}
|