mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-01 00:46:20 -05:00
197 lines
8.1 KiB
Python
197 lines
8.1 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
CheckValidity.py
|
|
---------------------
|
|
Date : May 2015
|
|
Copyright : (C) 2015 by Arnaud Morvan
|
|
Email : arnaud dot morvan at camptocamp 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__ = 'Arnaud Morvan'
|
|
__date__ = 'May 2015'
|
|
__copyright__ = '(C) 2015, Arnaud Morvan'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive323
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
from qgis.PyQt.QtCore import QVariant
|
|
|
|
from qgis.core import (QgsSettings,
|
|
QgsGeometry,
|
|
QgsFeature,
|
|
QgsField,
|
|
QgsFeatureRequest,
|
|
QgsFeatureSink,
|
|
QgsWkbTypes,
|
|
QgsFields,
|
|
QgsProcessing,
|
|
QgsProcessingFeatureSource,
|
|
QgsProcessingParameterFeatureSource,
|
|
QgsProcessingParameterEnum,
|
|
QgsProcessingParameterFeatureSink,
|
|
QgsProcessingOutputNumber
|
|
)
|
|
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
|
|
|
|
settings_method_key = "/qgis/digitizing/validate_geometries"
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class CheckValidity(QgisAlgorithm):
|
|
|
|
INPUT_LAYER = 'INPUT_LAYER'
|
|
METHOD = 'METHOD'
|
|
VALID_OUTPUT = 'VALID_OUTPUT'
|
|
VALID_COUNT = 'VALID_COUNT'
|
|
INVALID_OUTPUT = 'INVALID_OUTPUT'
|
|
INVALID_COUNT = 'INVALID_COUNT'
|
|
ERROR_OUTPUT = 'ERROR_OUTPUT'
|
|
ERROR_COUNT = 'ERROR_COUNT'
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'ftools', 'check_geometry.png'))
|
|
|
|
def group(self):
|
|
return self.tr('Vector geometry')
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
self.methods = [self.tr('The one selected in digitizing settings'),
|
|
'QGIS',
|
|
'GEOS']
|
|
|
|
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT_LAYER,
|
|
self.tr('Input layer')))
|
|
self.addParameter(QgsProcessingParameterEnum(self.METHOD,
|
|
self.tr('Method'), self.methods))
|
|
self.parameterDefinition(self.METHOD).setMetadata({
|
|
'widget_wrapper': {
|
|
'class': 'processing.gui.wrappers.EnumWidgetWrapper',
|
|
'useCheckBoxes': True,
|
|
'columns': 3}})
|
|
|
|
self.addParameter(QgsProcessingParameterFeatureSink(self.VALID_OUTPUT, self.tr('Valid output'), QgsProcessing.TypeVectorAnyGeometry, '', True))
|
|
self.addOutput(QgsProcessingOutputNumber(self.VALID_COUNT, self.tr('Count of valid features')))
|
|
|
|
self.addParameter(QgsProcessingParameterFeatureSink(self.INVALID_OUTPUT, self.tr('Invalid output'), QgsProcessing.TypeVectorAnyGeometry, '', True))
|
|
self.addOutput(QgsProcessingOutputNumber(self.INVALID_COUNT, self.tr('Count of invalid features')))
|
|
|
|
self.addParameter(QgsProcessingParameterFeatureSink(self.ERROR_OUTPUT, self.tr('Error output'), QgsProcessing.TypeVectorAnyGeometry, '', True))
|
|
self.addOutput(QgsProcessingOutputNumber(self.ERROR_COUNT, self.tr('Count of errors')))
|
|
|
|
def name(self):
|
|
return 'checkvalidity'
|
|
|
|
def displayName(self):
|
|
return self.tr('Check validity')
|
|
|
|
def processAlgorithm(self, parameters, context, feedback):
|
|
method_param = self.parameterAsEnum(parameters, self.METHOD, context)
|
|
if method_param == 0:
|
|
settings = QgsSettings()
|
|
method = int(settings.value(settings_method_key, 0)) - 1
|
|
if method < 0:
|
|
method = 0
|
|
else:
|
|
method = method_param - 1
|
|
|
|
results = self.doCheck(method, parameters, context, feedback)
|
|
return results
|
|
|
|
def doCheck(self, method, parameters, context, feedback):
|
|
source = self.parameterAsSource(parameters, self.INPUT_LAYER, context)
|
|
|
|
(valid_output_sink, valid_output_dest_id) = self.parameterAsSink(parameters, self.VALID_OUTPUT, context,
|
|
source.fields(), source.wkbType(), source.sourceCrs())
|
|
valid_count = 0
|
|
|
|
invalid_fields = source.fields()
|
|
invalid_fields.append(QgsField('_errors', QVariant.String, 'string', 255))
|
|
(invalid_output_sink, invalid_output_dest_id) = self.parameterAsSink(parameters, self.INVALID_OUTPUT, context,
|
|
invalid_fields, source.wkbType(), source.sourceCrs())
|
|
invalid_count = 0
|
|
|
|
error_fields = QgsFields()
|
|
error_fields.append(QgsField('message', QVariant.String, 'string', 255))
|
|
(error_output_sink, error_output_dest_id) = self.parameterAsSink(parameters, self.ERROR_OUTPUT, context,
|
|
error_fields, QgsWkbTypes.Point, source.sourceCrs())
|
|
error_count = 0
|
|
|
|
features = source.getFeatures(QgsFeatureRequest(), QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
|
|
total = 100.0 / source.featureCount() if source.featureCount() else 0
|
|
for current, inFeat in enumerate(features):
|
|
if feedback.isCanceled():
|
|
break
|
|
geom = inFeat.geometry()
|
|
attrs = inFeat.attributes()
|
|
|
|
valid = True
|
|
if not geom.isNull() and not geom.isEmpty():
|
|
errors = list(geom.validateGeometry(method))
|
|
if errors:
|
|
# QGIS method return a summary at the end
|
|
if method == 1:
|
|
errors.pop()
|
|
valid = False
|
|
reasons = []
|
|
for error in errors:
|
|
errFeat = QgsFeature()
|
|
error_geom = QgsGeometry.fromPoint(error.where())
|
|
errFeat.setGeometry(error_geom)
|
|
errFeat.setAttributes([error.what()])
|
|
if error_output_sink:
|
|
error_output_sink.addFeature(errFeat, QgsFeatureSink.FastInsert)
|
|
error_count += 1
|
|
|
|
reasons.append(error.what())
|
|
|
|
reason = "\n".join(reasons)
|
|
if len(reason) > 255:
|
|
reason = reason[:252] + '…'
|
|
attrs.append(reason)
|
|
|
|
outFeat = QgsFeature()
|
|
outFeat.setGeometry(geom)
|
|
outFeat.setAttributes(attrs)
|
|
|
|
if valid:
|
|
if valid_output_sink:
|
|
valid_output_sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
|
|
valid_count += 1
|
|
|
|
else:
|
|
if invalid_output_sink:
|
|
invalid_output_sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
|
|
invalid_count += 1
|
|
|
|
feedback.setProgress(int(current * total))
|
|
|
|
results = {
|
|
self.VALID_COUNT: valid_count,
|
|
self.INVALID_COUNT: invalid_count,
|
|
self.ERROR_COUNT: error_count
|
|
}
|
|
if valid_output_sink:
|
|
results[self.VALID_OUTPUT] = valid_output_dest_id
|
|
if invalid_output_sink:
|
|
results[self.INVALID_OUTPUT] = invalid_output_dest_id
|
|
if error_output_sink:
|
|
results[self.ERROR_OUTPUT] = error_output_dest_id
|
|
return results
|