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[FEATURE] Remove Singleparts to Multiparts algorithm
This algorithm is no longer required - it's been replaced by the 'Promote to multipart' and 'Collect geometries" algorithms. Tagged as feature to remember to include in release notes
This commit is contained in:
Nyall Dawson
parent
16c4f830b3
commit
a55fbd8ef3
@ -544,9 +544,6 @@ qgis:simplifygeometries: >
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The algorithm gives a choice of simplification methods, including distance based (the "Douglas-Peucker" algorithm), area based ("Visvalingam" algorithm) and snapping geometries to grid.
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qgis:singlepartstomultipart:
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qgis:singlesidedbuffer: >
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This algorithm buffers lines by a specified distance on one side of the line only.
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@ -144,7 +144,6 @@ from .ShortestPathLayerToPoint import ShortestPathLayerToPoint
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from .ShortestPathPointToLayer import ShortestPathPointToLayer
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from .ShortestPathPointToPoint import ShortestPathPointToPoint
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from .SimplifyGeometries import SimplifyGeometries
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from .SinglePartsToMultiparts import SinglePartsToMultiparts
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from .SingleSidedBuffer import SingleSidedBuffer
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from .Slope import Slope
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from .Smooth import Smooth
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@ -292,7 +291,6 @@ class QGISAlgorithmProvider(QgsProcessingProvider):
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ShortestPathPointToLayer(),
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ShortestPathPointToPoint(),
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SimplifyGeometries(),
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SinglePartsToMultiparts(),
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SingleSidedBuffer(),
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Slope(),
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Smooth(),
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@ -1,123 +0,0 @@
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# -*- coding: utf-8 -*-
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"""
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***************************************************************************
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SinglePartsToMultiparts.py
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---------------------
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Date : August 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 str
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__author__ = 'Victor Olaya'
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__date__ = 'August 2012'
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__copyright__ = '(C) 2012, Victor Olaya'
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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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import os
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from qgis.PyQt.QtGui import QIcon
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from qgis.core import (QgsFeature,
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QgsFeatureSink,
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QgsGeometry,
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QgsWkbTypes,
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QgsProcessingUtils,
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NULL,
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QgsProcessingParameterFeatureSource,
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QgsProcessingParameterField,
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QgsProcessingParameterFeatureSink)
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from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
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pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
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class SinglePartsToMultiparts(QgisAlgorithm):
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INPUT = 'INPUT'
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FIELD = 'FIELD'
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OUTPUT = 'OUTPUT'
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def icon(self):
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return QIcon(os.path.join(pluginPath, 'images', 'ftools', 'single_to_multi.png'))
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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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def initAlgorithm(self, config=None):
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self.addParameter(QgsProcessingParameterFeatureSource(self.INPUT,
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self.tr('Input layer')))
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self.addParameter(QgsProcessingParameterField(self.FIELD,
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self.tr('Unique ID field'), parentLayerParameterName=self.INPUT))
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self.addParameter(QgsProcessingParameterFeatureSink(self.OUTPUT, self.tr('Multipart')))
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def name(self):
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return 'singlepartstomultipart'
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def displayName(self):
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return self.tr('Singleparts to multipart')
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def processAlgorithm(self, parameters, context, feedback):
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source = self.parameterAsSource(parameters, self.INPUT, context)
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field_name = self.parameterAsString(parameters, self.FIELD, context)
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geom_type = QgsWkbTypes.multiType(source.wkbType())
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(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
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source.fields(), geom_type, source.sourceCrs())
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index = source.fields().lookupField(field_name)
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collection_geom = {}
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collection_attrs = {}
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features = source.getFeatures()
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total = 100.0 / source.featureCount() if source.featureCount() else 0
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for current, feature in enumerate(features):
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if feedback.isCanceled():
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break
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atMap = feature.attributes()
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idVar = atMap[index]
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if idVar in [None, NULL] or not feature.hasGeometry():
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sink.addFeature(feature, QgsFeatureSink.FastInsert)
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feedback.setProgress(int(current * total))
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continue
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key = str(idVar).strip()
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if key not in collection_geom:
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collection_geom[key] = []
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collection_attrs[key] = atMap
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inGeom = feature.geometry()
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collection_geom[key].append(inGeom)
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feedback.setProgress(int(current * total))
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for key, geoms in collection_geom.items():
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if feedback.isCanceled():
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break
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feature = QgsFeature()
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feature.setAttributes(collection_attrs[key])
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feature.setGeometry(QgsGeometry.collectGeometry(geoms))
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sink.addFeature(feature, QgsFeatureSink.FastInsert)
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return {self.OUTPUT: dest_id}
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@ -2683,7 +2683,7 @@ tests:
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name: expected/mean_coordinates.gml
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type: vector
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- algorithm: qgis:singlepartstomultipart
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- algorithm: native:collect
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name: single part to multipart
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params:
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FIELD: id
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