def convertWkbToLines(self, wkb):
multi_wkb = QgsWkbTypes.NoGeometry
if QgsWkbTypes.singleType(QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.Polygon:
multi_wkb = QgsWkbTypes.MultiLineString
elif QgsWkbTypes.singleType(QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.CurvePolygon:
multi_wkb = QgsWkbTypes.MultiCurve
if QgsWkbTypes.hasM(wkb):
multi_wkb = QgsWkbTypes.addM(multi_wkb)
if QgsWkbTypes.hasZ(wkb):
multi_wkb = QgsWkbTypes.addZ(multi_wkb)
return multi_wkb
def convertWkbToPolygons(self, wkb):
multi_wkb = QgsWkbTypes.NoGeometry
if QgsWkbTypes.singleType(QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.LineString:
multi_wkb = QgsWkbTypes.MultiPolygon
elif QgsWkbTypes.singleType(QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.CompoundCurve:
multi_wkb = QgsWkbTypes.MultiSurface
if QgsWkbTypes.hasM(wkb):
multi_wkb = QgsWkbTypes.addM(multi_wkb)
if QgsWkbTypes.hasZ(wkb):
multi_wkb = QgsWkbTypes.addZ(multi_wkb)
return multi_wkb
def convertWkbToPolygons(self, wkb):
multi_wkb = QgsWkbTypes.NoGeometry
if QgsWkbTypes.singleType(
QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.LineString:
multi_wkb = QgsWkbTypes.MultiPolygon
elif QgsWkbTypes.singleType(
QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.CompoundCurve:
multi_wkb = QgsWkbTypes.MultiSurface
if QgsWkbTypes.hasM(wkb):
multi_wkb = QgsWkbTypes.addM(multi_wkb)
if QgsWkbTypes.hasZ(wkb):
multi_wkb = QgsWkbTypes.addZ(multi_wkb)
return multi_wkb
def convertWkbToLines(self, wkb):
multi_wkb = None
if QgsWkbTypes.singleType(
QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.Polygon:
multi_wkb = QgsWkbTypes.MultiLineString
elif QgsWkbTypes.singleType(
QgsWkbTypes.flatType(wkb)) == QgsWkbTypes.CurvePolygon:
multi_wkb = QgsWkbTypes.MultiCurve
if QgsWkbTypes.hasM(wkb):
multi_wkb = QgsWkbTypes.addM(multi_wkb)
if QgsWkbTypes.hasZ(wkb):
multi_wkb = QgsWkbTypes.addZ(multi_wkb)
return multi_wkb
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.singleType(source.wkbType()), source.sourceCrs())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, feature in enumerate(features):
if feedback.isCanceled():
break
feedback.setProgress(int(current * total))
if not feature.hasGeometry():
sink.addFeature(feature, QgsFeatureSink.FastInsert)
continue
outFeat = QgsFeature()
inGeom = feature.geometry()
segments = self.extractAsSingleSegments(inGeom)
outFeat.setAttributes(feature.attributes())
for segment in segments:
outFeat.setGeometry(segment)
sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
return {self.OUTPUT: dest_id}
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.singleType(source.wkbType()), source.sourceCrs())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, feature in enumerate(features):
if feedback.isCanceled():
break
feedback.setProgress(int(current * total))
if not feature.hasGeometry():
sink.addFeature(feature, QgsFeatureSink.FastInsert)
continue
outFeat = QgsFeature()
inGeom = feature.geometry()
segments = self.extractAsSingleSegments(inGeom)
outFeat.setAttributes(feature.attributes())
for segment in segments:
outFeat.setGeometry(segment)
sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
return {self.OUTPUT: dest_id}
def processAlgorithm(self, feedback):
layer = dataobjects.getLayerFromString(self.getParameterValue(self.INPUT))
geomType = QgsWkbTypes.singleType(layer.wkbType())
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
layer.fields().toList(), geomType, layer.crs())
features = vector.features(layer)
total = 100.0 / len(features)
for current, f in enumerate(features):
input_geometry = f.geometry()
if input_geometry:
if input_geometry.isMultipart():
for g in input_geometry.asGeometryCollection():
output_feature = f
output_feature.setGeometry(g)
writer.addFeature(output_feature)
else:
writer.addFeature(f)
else:
#input feature with null geometry
writer.addFeature(f)
feedback.setProgress(int(current * total))
del writer
def processAlgorithm(self, progress):
layer = dataobjects.getObjectFromUri(self.getParameterValue(self.INPUT))
geomType = QgsWkbTypes.singleType(layer.wkbType())
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
layer.fields().toList(), geomType, layer.crs())
features = vector.features(layer)
total = 100.0 / len(features)
for current, f in enumerate(features):
input_geometry = f.geometry()
if input_geometry:
if input_geometry.isMultipart():
for g in input_geometry.asGeometryCollection():
output_feature = f
output_feature.setGeometry(g)
writer.addFeature(output_feature)
else:
writer.addFeature(f)
else:
#input feature with null geometry
writer.addFeature(f)
progress.setPercentage(int(current * total))
del writer
def outputWkbType(self, inputWkb):
return QgsWkbTypes.singleType(inputWkb)
def nestedPointXYList(cls, geom):
"""geom: a QgsGeometry object"""
if QgsWkbTypes.singleType(QgsWkbTypes.flatType(geom.wkbType())) == QgsWkbTypes.Polygon:
return geom.asMultiPolygon() if geom.isMultipart() else [geom.asPolygon()]
return super().nestedPointXYList(geom)
def outputWkbType(self, inputWkb):
return QgsWkbTypes.singleType(inputWkb)
