mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-09 00:35:20 -05:00
8cad2a6e16
Remove a bunch of manual "max" values for numeric parameters where the maximum just represents a 'large number' and not a real constraint, and let the default parameter max value handling kick in instead. In the case of random selection the max value exceeded the possible range for integers in spin boxes and broke the widget. Fixes #20015
146 lines
6.4 KiB
Python
146 lines
6.4 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
SnapGeometries.py
|
|
-----------------
|
|
Date : October 2016
|
|
Copyright : (C) 2016 by Nyall Dawson
|
|
Email : nyall dot dawson 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__ = 'Nyall Dawson'
|
|
__date__ = 'October 2016'
|
|
__copyright__ = '(C) 2016, Nyall Dawson'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
from qgis.analysis import (QgsGeometrySnapper,
|
|
QgsGeometrySnapperSingleSource,
|
|
QgsInternalGeometrySnapper)
|
|
from qgis.core import (QgsFeatureSink,
|
|
QgsProcessing,
|
|
QgsProcessingException,
|
|
QgsProcessingParameterDistance,
|
|
QgsProcessingParameterFeatureSource,
|
|
QgsProcessingParameterFeatureSink,
|
|
QgsProcessingParameterEnum)
|
|
|
|
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
|
|
|
|
|
|
class SnapGeometriesToLayer(QgisAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
REFERENCE_LAYER = 'REFERENCE_LAYER'
|
|
TOLERANCE = 'TOLERANCE'
|
|
OUTPUT = 'OUTPUT'
|
|
BEHAVIOR = 'BEHAVIOR'
|
|
|
|
def group(self):
|
|
return self.tr('Vector geometry')
|
|
|
|
def groupId(self):
|
|
return 'vectorgeometry'
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
def initAlgorithm(self, config=None):
|
|
self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT, self.tr('Input layer'), [QgsProcessing.TypeVectorPoint, QgsProcessing.TypeVectorLine, QgsProcessing.TypeVectorPolygon]))
|
|
self.addParameter(QgsProcessingParameterFeatureSource(self.REFERENCE_LAYER, self.tr('Reference layer'),
|
|
[QgsProcessing.TypeVectorPoint,
|
|
QgsProcessing.TypeVectorLine,
|
|
QgsProcessing.TypeVectorPolygon]))
|
|
|
|
self.addParameter(QgsProcessingParameterDistance(self.TOLERANCE, self.tr('Tolerance'), parentParameterName=self.INPUT,
|
|
minValue=0.00000001, defaultValue=10.0))
|
|
|
|
self.modes = [self.tr('Prefer aligning nodes, insert extra vertices where required'),
|
|
self.tr('Prefer closest point, insert extra vertices where required'),
|
|
self.tr('Prefer aligning nodes, don\'t insert new vertices'),
|
|
self.tr('Prefer closest point, don\'t insert new vertices'),
|
|
self.tr('Move end points only, prefer aligning nodes'),
|
|
self.tr('Move end points only, prefer closest point'),
|
|
self.tr('Snap end points to end points only'),
|
|
self.tr('Snap to anchor nodes (single layer only)')]
|
|
self.addParameter(QgsProcessingParameterEnum(
|
|
self.BEHAVIOR,
|
|
self.tr('Behavior'),
|
|
options=self.modes, defaultValue=0))
|
|
|
|
self.addParameter(QgsProcessingParameterFeatureSink(self.OUTPUT, self.tr('Snapped geometry')))
|
|
|
|
def name(self):
|
|
return 'snapgeometries'
|
|
|
|
def displayName(self):
|
|
return self.tr('Snap geometries to layer')
|
|
|
|
def processAlgorithm(self, parameters, context, feedback):
|
|
source = self.parameterAsSource(parameters, self.INPUT, context)
|
|
if source is None:
|
|
raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
|
|
|
|
reference_source = self.parameterAsSource(parameters, self.REFERENCE_LAYER, context)
|
|
if reference_source is None:
|
|
raise QgsProcessingException(self.invalidSourceError(parameters, self.REFERENCE_LAYER))
|
|
|
|
tolerance = self.parameterAsDouble(parameters, self.TOLERANCE, context)
|
|
mode = self.parameterAsEnum(parameters, self.BEHAVIOR, context)
|
|
|
|
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
|
|
source.fields(), source.wkbType(), source.sourceCrs())
|
|
if sink is None:
|
|
raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
|
|
|
|
features = source.getFeatures()
|
|
total = 100.0 / source.featureCount() if source.featureCount() else 0
|
|
|
|
if parameters[self.INPUT] != parameters[self.REFERENCE_LAYER]:
|
|
if mode == 7:
|
|
raise QgsProcessingException(self.tr('This mode applies when the input and reference layer are the same.'))
|
|
|
|
snapper = QgsGeometrySnapper(reference_source)
|
|
processed = 0
|
|
for f in features:
|
|
if feedback.isCanceled():
|
|
break
|
|
if f.hasGeometry():
|
|
out_feature = f
|
|
out_feature.setGeometry(snapper.snapGeometry(f.geometry(), tolerance, mode))
|
|
sink.addFeature(out_feature, QgsFeatureSink.FastInsert)
|
|
else:
|
|
sink.addFeature(f)
|
|
processed += 1
|
|
feedback.setProgress(processed * total)
|
|
elif mode == 7:
|
|
# input layer == ref layer
|
|
modified_count = QgsGeometrySnapperSingleSource.run(source, sink, tolerance, feedback)
|
|
feedback.pushInfo(self.tr('Snapped {} geometries.').format(modified_count))
|
|
else:
|
|
# snapping internally
|
|
snapper = QgsInternalGeometrySnapper(tolerance, mode)
|
|
processed = 0
|
|
for f in features:
|
|
if feedback.isCanceled():
|
|
break
|
|
|
|
out_feature = f
|
|
out_feature.setGeometry(snapper.snapFeature(f))
|
|
sink.addFeature(out_feature, QgsFeatureSink.FastInsert)
|
|
processed += 1
|
|
feedback.setProgress(processed * total)
|
|
|
|
return {self.OUTPUT: dest_id}
|