def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
index = self.parameterAsEnum(parameters, self.TYPE, context)
if index == 0:
newType = QgsWkbTypes.Point
elif index == 1:
newType = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
elif index == 2:
newType = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
elif index == 3:
newType = QgsWkbTypes.MultiLineString
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
else:
newType = QgsWkbTypes.Polygon
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
source.fields(), newType, 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
for current, f in enumerate(features):
if feedback.isCanceled():
break
if not f.hasGeometry():
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
for p in self.convertGeometry(f.geometry(), index):
feat = QgsFeature()
feat.setAttributes(f.attributes())
feat.setGeometry(p)
sink.addFeature(feat, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, progress):
layer = dataobjects.getObjectFromUri(self.getParameterValue(self.INPUT_LAYER))
input_wkb = layer.wkbType()
if QgsWkbTypes.geometryType(input_wkb) == QgsWkbTypes.LineGeometry:
output_wkb = QgsWkbTypes.MultiPoint
elif QgsWkbTypes.geometryType(input_wkb) == QgsWkbTypes.PolygonGeometry:
output_wkb = QgsWkbTypes.MultiLineString
if QgsWkbTypes.hasZ(input_wkb):
output_wkb = QgsWkbTypes.addZ(output_wkb)
if QgsWkbTypes.hasM(input_wkb):
output_wkb = QgsWkbTypes.addM(output_wkb)
writer = self.getOutputFromName(self.OUTPUT_LAYER).getVectorWriter(layer.fields(), output_wkb, layer.crs())
features = vector.features(layer)
total = 100.0 / len(features)
for current, input_feature in enumerate(features):
output_feature = input_feature
input_geometry = input_feature.geometry()
if input_geometry:
output_geometry = QgsGeometry(input_geometry.geometry().boundary())
if not output_geometry:
raise GeoAlgorithmExecutionException(self.tr("Error calculating boundary"))
output_feature.setGeometry(output_geometry)
writer.addFeature(output_feature)
progress.setPercentage(int(current * total))
del writer
def outputWkbType(self, input_wkb):
if QgsWkbTypes.geometryType(input_wkb) == QgsWkbTypes.LineGeometry:
output_wkb = QgsWkbTypes.MultiPoint
elif QgsWkbTypes.geometryType(input_wkb) == QgsWkbTypes.PolygonGeometry:
output_wkb = QgsWkbTypes.MultiLineString
if QgsWkbTypes.hasZ(input_wkb):
output_wkb = QgsWkbTypes.addZ(output_wkb)
if QgsWkbTypes.hasM(input_wkb):
output_wkb = QgsWkbTypes.addM(output_wkb)
return output_wkb
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 processFeature(self, feature, feedback):
input_geometry = feature.geometry()
if input_geometry:
new_geom = input_geometry.constGet().clone()
if QgsWkbTypes.hasM(new_geom.wkbType()):
# addMValue won't alter existing M values, so drop them first
new_geom.dropMValue()
new_geom.addMValue(self.m_value)
feature.setGeometry(QgsGeometry(new_geom))
return feature
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
fields = source.fields()
fields.append(QgsField('node_index', QVariant.Int))
fields.append(QgsField('distance', QVariant.Double))
fields.append(QgsField('angle', QVariant.Double))
out_wkb = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
out_wkb = QgsWkbTypes.addM(out_wkb)
if QgsWkbTypes.hasZ(source.wkbType()):
out_wkb = QgsWkbTypes.addZ(out_wkb)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, out_wkb, source.sourceCrs())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
input_geometry = f.geometry()
if not input_geometry:
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
i = 0
for part in input_geometry.geometry().coordinateSequence():
for ring in part:
if feedback.isCanceled():
break
for point in ring:
distance = input_geometry.distanceToVertex(i)
angle = math.degrees(input_geometry.angleAtVertex(i))
attrs = f.attributes()
attrs.append(i)
attrs.append(distance)
attrs.append(angle)
output_feature = QgsFeature()
output_feature.setAttributes(attrs)
output_feature.setGeometry(QgsGeometry(point.clone()))
sink.addFeature(output_feature, QgsFeatureSink.FastInsert)
i += 1
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def test_zm(self):
"""Test Z dimension and M value"""
l = QgsVectorLayer("dbname=%s table='test_z' (geometry) key='id'" % self.dbname, "test_z", "spatialite")
self.assertTrue(l.isValid())
self.assertTrue(QgsWkbTypes.hasZ(l.wkbType()))
feature = l.getFeature(1)
geom = feature.geometry().constGet()
self.assertEqual(geom.z(), 1.0)
l = QgsVectorLayer("dbname=%s table='test_m' (geometry) key='id'" % self.dbname, "test_m", "spatialite")
self.assertTrue(l.isValid())
self.assertTrue(QgsWkbTypes.hasM(l.wkbType()))
feature = l.getFeature(1)
geom = feature.geometry().constGet()
self.assertEqual(geom.m(), 1.0)
l = QgsVectorLayer("dbname=%s table='test_zm' (geometry) key='id'" % self.dbname, "test_zm", "spatialite")
self.assertTrue(l.isValid())
self.assertTrue(QgsWkbTypes.hasZ(l.wkbType()))
self.assertTrue(QgsWkbTypes.hasM(l.wkbType()))
feature = l.getFeature(1)
geom = feature.geometry().constGet()
self.assertEqual(geom.z(), 1.0)
self.assertEqual(geom.m(), 1.0)
def processFeature(self, feature, context, feedback):
input_geometry = feature.geometry()
if input_geometry:
new_geom = input_geometry.constGet().clone()
if QgsWkbTypes.hasM(new_geom.wkbType()):
# addMValue won't alter existing M values, so drop them first
new_geom.dropMValue()
m = self.m_value
if self.dynamic_m:
m, ok = self.m_property.valueAsDouble(context.expressionContext(), m)
new_geom.addMValue(m)
feature.setGeometry(QgsGeometry(new_geom))
return feature
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT_LAYER, context)
input_wkb = source.wkbType()
if QgsWkbTypes.geometryType(input_wkb) == QgsWkbTypes.LineGeometry:
output_wkb = QgsWkbTypes.MultiPoint
elif QgsWkbTypes.geometryType(input_wkb) == QgsWkbTypes.PolygonGeometry:
output_wkb = QgsWkbTypes.MultiLineString
if QgsWkbTypes.hasZ(input_wkb):
output_wkb = QgsWkbTypes.addZ(output_wkb)
if QgsWkbTypes.hasM(input_wkb):
output_wkb = QgsWkbTypes.addM(output_wkb)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT_LAYER, context,
source.fields(), output_wkb, source.sourceCrs())
features = source.getFeatures()
total = 100.0 / source.featureCount()
for current, input_feature in enumerate(features):
if feedback.isCanceled():
break
output_feature = input_feature
input_geometry = input_feature.geometry()
if input_geometry:
output_geometry = QgsGeometry(input_geometry.geometry().boundary())
if not output_geometry:
raise GeoAlgorithmExecutionException(
self.tr('Error calculating boundary'))
output_feature.setGeometry(output_geometry)
sink.addFeature(output_feature)
feedback.setProgress(int(current * total))
return {self.OUTPUT_LAYER: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
method = self.parameterAsEnum(parameters, self.METHOD, context)
wkb_type = source.wkbType()
fields = source.fields()
if QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.PolygonGeometry:
areaName = vector.createUniqueFieldName('area', fields)
fields.append(QgsField(areaName, QVariant.Double))
perimeterName = vector.createUniqueFieldName('perimeter', fields)
fields.append(QgsField(perimeterName, QVariant.Double))
elif QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.LineGeometry:
lengthName = vector.createUniqueFieldName('length', fields)
fields.append(QgsField(lengthName, QVariant.Double))
else:
xName = vector.createUniqueFieldName('xcoord', fields)
fields.append(QgsField(xName, QVariant.Double))
yName = vector.createUniqueFieldName('ycoord', fields)
fields.append(QgsField(yName, QVariant.Double))
if QgsWkbTypes.hasZ(source.wkbType()):
self.export_z = True
zName = vector.createUniqueFieldName('zcoord', fields)
fields.append(QgsField(zName, QVariant.Double))
if QgsWkbTypes.hasM(source.wkbType()):
self.export_m = True
zName = vector.createUniqueFieldName('mvalue', fields)
fields.append(QgsField(zName, QVariant.Double))
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, wkb_type, source.sourceCrs())
coordTransform = None
# Calculate with:
# 0 - layer CRS
# 1 - project CRS
# 2 - ellipsoidal
self.distance_area = QgsDistanceArea()
if method == 2:
self.distance_area.setSourceCrs(source.sourceCrs())
self.distance_area.setEllipsoid(context.project().ellipsoid())
elif method == 1:
coordTransform = QgsCoordinateTransform(source.sourceCrs(), context.project().crs())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
outFeat = f
attrs = f.attributes()
inGeom = f.geometry()
if inGeom:
if coordTransform is not None:
inGeom.transform(coordTransform)
if inGeom.type() == QgsWkbTypes.PointGeometry:
attrs.extend(self.point_attributes(inGeom))
elif inGeom.type() == QgsWkbTypes.PolygonGeometry:
attrs.extend(self.polygon_attributes(inGeom))
else:
attrs.extend(self.line_attributes(inGeom))
outFeat.setAttributes(attrs)
sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def make_features_compatible(new_features, input_layer):
"""Try to make the new features compatible with old features by:
- converting single to multi part
- dropping additional attributes
- adding back M/Z values
- drop Z/M
- convert multi part to single part
:param new_features: new features
:type new_features: list of QgsFeatures
:param input_layer: input layer
:type input_layer: QgsVectorLayer
:return: modified features
:rtype: list of QgsFeatures
"""
input_wkb_type = input_layer.wkbType()
result_features = []
for new_f in new_features:
# Fix attributes
if new_f.fields().count() > 0:
attributes = []
for field in input_layer.fields():
if new_f.fields().indexFromName(field.name()) >= 0:
attributes.append(new_f[field.name()])
else:
attributes.append(None)
f = QgsFeature(input_layer.fields())
f.setAttributes(attributes)
f.setGeometry(new_f.geometry())
new_f = f
else:
lendiff = len(new_f.attributes()) - len(input_layer.fields())
if lendiff > 0:
f = QgsFeature(input_layer.fields())
f.setGeometry(new_f.geometry())
f.setAttributes(new_f.attributes()[:len(input_layer.fields())])
new_f = f
elif lendiff < 0:
f = QgsFeature(input_layer.fields())
f.setGeometry(new_f.geometry())
attributes = new_f.attributes() + [None for i in range(-lendiff)]
f.setAttributes(attributes)
new_f = f
# Check if we need geometry manipulation
new_f_geom_type = QgsWkbTypes.geometryType(new_f.geometry().wkbType())
new_f_has_geom = new_f_geom_type not in (QgsWkbTypes.UnknownGeometry, QgsWkbTypes.NullGeometry)
input_layer_has_geom = input_wkb_type not in (QgsWkbTypes.NoGeometry, QgsWkbTypes.Unknown)
# Drop geometry if layer is geometry-less
if not input_layer_has_geom and new_f_has_geom:
f = QgsFeature(input_layer.fields())
f.setAttributes(new_f.attributes())
new_f = f
result_features.append(new_f)
continue # skip the rest
if input_layer_has_geom and new_f_has_geom and \
new_f.geometry().wkbType() != input_wkb_type: # Fix geometry
# Single -> Multi
if (QgsWkbTypes.isMultiType(input_wkb_type) and not
new_f.geometry().isMultipart()):
new_geom = new_f.geometry()
new_geom.convertToMultiType()
new_f.setGeometry(new_geom)
# Drop Z/M
if (new_f.geometry().constGet().is3D() and not QgsWkbTypes.hasZ(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().dropZValue()
new_f.setGeometry(new_geom)
if (new_f.geometry().constGet().isMeasure() and not QgsWkbTypes.hasM(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().dropMValue()
new_f.setGeometry(new_geom)
# Add Z/M back (set it to 0)
if (not new_f.geometry().constGet().is3D() and QgsWkbTypes.hasZ(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().addZValue(0.0)
new_f.setGeometry(new_geom)
if (not new_f.geometry().constGet().isMeasure() and QgsWkbTypes.hasM(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().addMValue(0.0)
new_f.setGeometry(new_geom)
# Multi -> Single
if (not QgsWkbTypes.isMultiType(input_wkb_type) and
new_f.geometry().isMultipart()):
g = new_f.geometry()
g2 = g.constGet()
for i in range(g2.partCount()):
# Clone or crash!
g4 = QgsGeometry(g2.geometryN(i).clone())
f = QgsVectorLayerUtils.createFeature(input_layer, g4, {i: new_f.attribute(i) for i in range(new_f.fields().count())})
result_features.append(f)
else:
result_features.append(new_f)
else:
result_features.append(new_f)
return result_features
def supportInPlaceEdit(self, layer):
return super().supportInPlaceEdit(layer) and QgsWkbTypes.hasM(layer.wkbType())
def getVectorTables(self, schema=None):
"""Returns a list of vector table information
"""
items = []
for table in self.core_connection.tables(
schema, QgsAbstractDatabaseProviderConnection.Vector
| QgsAbstractDatabaseProviderConnection.Aspatial):
if not (table.flags()
& QgsAbstractDatabaseProviderConnection.Aspatial):
geom_type = table.geometryColumnTypes()[0]
# Use integer PG code for SRID
srid = geom_type.crs.postgisSrid()
geomtype_flatten = QgsWkbTypes.flatType(geom_type.wkbType)
geomname = 'GEOMETRY'
if geomtype_flatten == QgsWkbTypes.Point:
geomname = 'POINT'
elif geomtype_flatten == QgsWkbTypes.LineString:
geomname = 'LINESTRING'
elif geomtype_flatten == QgsWkbTypes.Polygon:
geomname = 'POLYGON'
elif geomtype_flatten == QgsWkbTypes.MultiPoint:
geomname = 'MULTIPOINT'
elif geomtype_flatten == QgsWkbTypes.MultiLineString:
geomname = 'MULTILINESTRING'
elif geomtype_flatten == QgsWkbTypes.MultiPolygon:
geomname = 'MULTIPOLYGON'
elif geomtype_flatten == QgsWkbTypes.GeometryCollection:
geomname = 'GEOMETRYCOLLECTION'
elif geomtype_flatten == QgsWkbTypes.CircularString:
geomname = 'CIRCULARSTRING'
elif geomtype_flatten == QgsWkbTypes.CompoundCurve:
geomname = 'COMPOUNDCURVE'
elif geomtype_flatten == QgsWkbTypes.CurvePolygon:
geomname = 'CURVEPOLYGON'
elif geomtype_flatten == QgsWkbTypes.MultiCurve:
geomname = 'MULTICURVE'
elif geomtype_flatten == QgsWkbTypes.MultiSurface:
geomname = 'MULTISURFACE'
geomdim = 'XY'
if QgsWkbTypes.hasZ(geom_type.wkbType):
geomdim += 'Z'
if QgsWkbTypes.hasM(geom_type.wkbType):
geomdim += 'M'
item = [
Table.VectorType,
table.tableName(),
bool(table.flags()
& QgsAbstractDatabaseProviderConnection.View
), # is_view
table.tableName(),
table.geometryColumn(),
geomname,
geomdim,
srid
]
self.mapSridToName[srid] = geom_type.crs.description()
else:
item = [
Table.TableType,
table.tableName(),
bool(table.flags()
& QgsAbstractDatabaseProviderConnection.View),
]
items.append(item)
return items
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
fields = source.fields()
fields.append(QgsField('node_pos', QVariant.Int))
fields.append(QgsField('node_index', QVariant.Int))
fields.append(QgsField('distance', QVariant.Double))
fields.append(QgsField('angle', QVariant.Double))
fields.append(QgsField('NUM_FIELD', QVariant.Int))
wkb_type = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
wkb_type = QgsWkbTypes.addM(wkb_type)
if QgsWkbTypes.hasZ(source.wkbType()):
wkb_type = QgsWkbTypes.addZ(wkb_type)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, wkb_type, source.sourceCrs())
node_indices_string = self.parameterAsString(parameters, self.NODES, context)
indices = []
for node in node_indices_string.split(','):
try:
indices.append(int(node))
except:
raise QgsProcessingException(
self.tr('\'{}\' is not a valid node index').format(node))
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
input_geometry = f.geometry()
if not input_geometry:
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
total_nodes = input_geometry.geometry().nCoordinates()
for node in indices:
if node < 0:
node_index = total_nodes + node
else:
node_index = node
if node_index < 0 or node_index >= total_nodes:
continue
distance = input_geometry.distanceToVertex(node_index)
angle = math.degrees(input_geometry.angleAtVertex(node_index))
output_feature = QgsFeature()
attrs = f.attributes()
attrs.append(node)
attrs.append(node_index)
attrs.append(distance)
attrs.append(angle)
output_feature.setAttributes(attrs)
point = input_geometry.vertexAt(node_index)
output_feature.setGeometry(QgsGeometry(point))
sink.addFeature(output_feature, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(
self.invalidSourceError(parameters, self.INPUT))
fields = source.fields()
fields.append(QgsField('vertex_pos', QVariant.Int))
fields.append(QgsField('vertex_index', QVariant.Int))
fields.append(QgsField('vertex_part', QVariant.Int))
if QgsWkbTypes.geometryType(
source.wkbType()) == QgsWkbTypes.PolygonGeometry:
fields.append(QgsField('vertex_part_ring', QVariant.Int))
fields.append(QgsField('vertex_part_index', QVariant.Int))
fields.append(QgsField('distance', QVariant.Double))
fields.append(QgsField('angle', QVariant.Double))
wkb_type = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
wkb_type = QgsWkbTypes.addM(wkb_type)
if QgsWkbTypes.hasZ(source.wkbType()):
wkb_type = QgsWkbTypes.addZ(wkb_type)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT,
context, fields, wkb_type,
source.sourceCrs())
if sink is None:
raise QgsProcessingException(
self.invalidSinkError(parameters, self.OUTPUT))
vertex_indices_string = self.parameterAsString(parameters,
self.VERTICES, context)
indices = []
for vertex in vertex_indices_string.split(','):
try:
indices.append(int(vertex))
except:
raise QgsProcessingException(
self.tr('\'{}\' is not a valid vertex index').format(
vertex))
features = source.getFeatures(
QgsFeatureRequest(),
QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
input_geometry = f.geometry()
if not input_geometry:
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
total_vertices = input_geometry.constGet().nCoordinates()
for vertex in indices:
if vertex < 0:
vertex_index = total_vertices + vertex
else:
vertex_index = vertex
if vertex_index < 0 or vertex_index >= total_vertices:
continue
(success, vertex_id
) = input_geometry.vertexIdFromVertexNr(vertex_index)
distance = input_geometry.distanceToVertex(vertex_index)
angle = math.degrees(
input_geometry.angleAtVertex(vertex_index))
output_feature = QgsFeature()
attrs = f.attributes()
attrs.append(vertex)
attrs.append(vertex_index)
attrs.append(vertex_id.part)
if QgsWkbTypes.geometryType(
source.wkbType()) == QgsWkbTypes.PolygonGeometry:
attrs.append(vertex_id.ring)
attrs.append(vertex_id.vertex)
attrs.append(distance)
attrs.append(angle)
output_feature.setAttributes(attrs)
point = input_geometry.vertexAt(vertex_index)
output_feature.setGeometry(QgsGeometry(point))
sink.addFeature(output_feature, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(
self.invalidSourceError(parameters, self.INPUT))
close_path = self.parameterAsBool(parameters, self.CLOSE_PATH, context)
group_field_name = self.parameterAsString(parameters, self.GROUP_FIELD,
context)
order_field_name = self.parameterAsString(parameters, self.ORDER_FIELD,
context)
order_expression = self.parameterAsString(parameters,
self.ORDER_EXPRESSION,
context)
date_format = self.parameterAsString(parameters, self.DATE_FORMAT,
context)
text_dir = self.parameterAsString(parameters, self.OUTPUT_TEXT_DIR,
context)
group_field_index = source.fields().lookupField(group_field_name)
if group_field_index >= 0:
group_field_def = source.fields().at(group_field_index)
else:
group_field_def = None
if order_field_name:
order_expression = QgsExpression.quotedColumnRef(order_field_name)
if not order_expression:
raise QgsProcessingException(
self.tr('ORDER_EXPRESSION parameter is missing.'))
expression_context = self.createExpressionContext(
parameters, context, source)
expression = QgsExpression(order_expression)
if expression.hasParserError():
raise QgsProcessingException(expression.parserErrorString())
expression.prepare(expression_context)
order_field_type = QVariant.String
if expression.isField():
field_name = next(iter(expression.referencedColumns()))
order_field_type = source.fields().field(field_name).type()
fields = QgsFields()
if group_field_def is not None:
fields.append(group_field_def)
begin_field = QgsField('begin', order_field_type)
fields.append(begin_field)
end_field = QgsField('end', order_field_type)
fields.append(end_field)
output_wkb = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()):
output_wkb = QgsWkbTypes.addM(output_wkb)
if QgsWkbTypes.hasZ(source.wkbType()):
output_wkb = QgsWkbTypes.addZ(output_wkb)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT,
context, fields, output_wkb,
source.sourceCrs())
if sink is None:
raise QgsProcessingException(
self.invalidSinkError(parameters, self.OUTPUT))
if text_dir and not (os.path.exists(text_dir)):
raise QgsProcessingException(
self.tr("The text output directory does not exist"))
points = dict()
required_fields = expression.referencedColumns()
required_fields.add(group_field_name)
features = source.getFeatures(
QgsFeatureRequest().setSubsetOfAttributes(required_fields,
source.fields()),
QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
if not f.hasGeometry():
continue
point = f.geometry().constGet().clone()
if group_field_index >= 0:
group = f[group_field_index]
else:
group = 1
expression_context.setFeature(f)
order = expression.evaluate(expression_context)
if date_format != '':
order = datetime.strptime(str(order), date_format)
if group in points:
points[group].append((order, point))
else:
points[group] = [(order, point)]
feedback.setProgress(int(current * total))
feedback.setProgress(0)
da = QgsDistanceArea()
da.setSourceCrs(source.sourceCrs(), context.transformContext())
da.setEllipsoid(context.ellipsoid())
current = 0
total = 100.0 / len(points) if points else 1
for group, vertices in points.items():
if feedback.isCanceled():
break
vertices.sort(key=lambda x: (x[0] is None, x[0]))
f = QgsFeature()
attributes = []
if group_field_index >= 0:
attributes.append(group)
attributes.extend([vertices[0][0], vertices[-1][0]])
f.setAttributes(attributes)
line = [node[1] for node in vertices]
if close_path is True:
if line[0] != line[-1]:
line.append(line[0])
if text_dir:
fileName = os.path.join(text_dir, '%s.txt' % group)
with open(fileName, 'w') as fl:
fl.write('angle=Azimuth\n')
fl.write('heading=Coordinate_System\n')
fl.write('dist_units=Default\n')
for i in range(len(line)):
if i == 0:
fl.write('startAt=%f;%f;90\n' %
(line[i].x(), line[i].y()))
fl.write('survey=Polygonal\n')
fl.write('[data]\n')
else:
angle = line[i - 1].azimuth(line[i])
distance = da.measureLine(QgsPointXY(line[i - 1]),
QgsPointXY(line[i]))
fl.write('%f;%f;90\n' % (angle, distance))
f.setGeometry(QgsGeometry(QgsLineString(line)))
sink.addFeature(f, QgsFeatureSink.FastInsert)
current += 1
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
''' Here is where the processing itself takes place. '''
#
if not is_dependencies_satisfied:
return {}
the_layer = self.parameterAsSource(parameters, self.THE_LAYER, context)
if the_layer is None:
raise QgsProcessingException(self.invalidSourceError(parameters,
self.THE_LAYER))
#
fidu_fld = self.parameterAsString(parameters, self.FID_FLD, context)
data_fld = self.parameterAsString(parameters, self.DATA_FLD, context)
line_fld = self.parameterAsString(parameters, self.LINE_FLD, context)
invP = self.parameterAsBool(parameters, self.INVERTP, context)
scale = self.parameterAsDouble(parameters, self.SCALE, context)
offset = self.parameterAsDouble(parameters, self.OFFSET, context)
join_to_line = self.parameterAsBool(parameters, self.JOINL, context)
data = the_layer.fields().at(the_layer.fields().lookupField(data_fld))
fidu = the_layer.fields().at(the_layer.fields().lookupField(fidu_fld))
if not data.isNumeric() or not fidu.isNumeric():
raise QgsProcessingException(self.invalidSourceError(parameters,
self.THE_LAYER))
line = the_layer.fields().at(the_layer.fields().lookupField(line_fld))
data_ix = the_layer.fields().lookupField(data_fld)
line_ix = the_layer.fields().lookupField(line_fld)
fidu_ix = the_layer.fields().lookupField(fidu_fld)
# Set output vector layer
output_wkb = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(the_layer.wkbType()):
output_wkb = QgsWkbTypes.addM(output_wkb)
if QgsWkbTypes.hasZ(the_layer.wkbType()):
output_wkb = QgsWkbTypes.addZ(output_wkb)
# Keep line into stacked profile vector
line_def = the_layer.fields().at(line_ix)
fields = QgsFields()
if line_def is not None:
fields.append(line_def)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context, fields,
output_wkb, the_layer.sourceCrs())
if sink is None:
raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
# Get the features and fields of interest
features = the_layer.getFeatures(QgsFeatureRequest().setSubsetOfAttributes(
[fidu_ix, line_ix, data_ix]),
QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
#...
#Construct vector layer
f = QgsFeature()
f.setAttributes([line,])
line_pts = [QgsPoint(x,y) for x,y in zip(px, py)]
if join_to_line:
# Join profile to its line
e = len(ar) - 1
ar0 = [QgsPoint(ar.X[0],ar.Y[0]),]
ar1 = [QgsPoint(ar.X[e],ar.Y[e]),]
line_pts = ar0 + line_pts + ar1
#
f.setGeometry(QgsGeometry(QgsLineString(line_pts)))
sink.addFeature(f, QgsFeatureSink.FastInsert)
def validate(self) -> str:
layer = self.layer.currentLayer()
if not layer:
return tr('A layer is mandatory.')
upstream = super().validate()
if upstream:
return upstream
wfs_layers_list = QgsProject.instance().readListEntry('WFSLayers',
'')[0]
for wfs_layer in wfs_layers_list:
if layer.id() == wfs_layer:
break
else:
msg = tr(
'The layers you have chosen for this tool must be checked in the "WFS Capabilities"\n'
' option of the QGIS Server tab in the "Project Properties" dialog.'
)
return msg
create_feature = self.create_feature.isChecked()
modify_attribute = self.edit_attributes.isChecked()
modify_geometry = self.edit_geometry.isChecked()
delete_feature = self.delete_feature.isChecked()
if not create_feature and not modify_attribute and not modify_geometry and not delete_feature:
return tr('At least one action is mandatory.')
# Check Z or M values which will be lost when editing
geometry_type = layer.wkbType()
# noinspection PyArgumentList
has_m_values = QgsWkbTypes.hasM(geometry_type)
# noinspection PyArgumentList
has_z_values = QgsWkbTypes.hasZ(geometry_type)
if has_z_values or has_m_values:
QMessageBox.warning(
self,
tr('Editing Z/M Values'),
tr('Be careful, editing this layer with Lizmap will set the Z and M to 0.'
),
)
has_snap = self.snap_node.isChecked() or self.snap_segments.isChecked(
) or self.snap_intersection.isChecked()
layers = self.layers.selection()
if len(layers) == 0 and has_snap:
return tr(
'One snapping checkbox is checked, so at least one layer is mandatory in the list.'
)
if len(layers) > 0 and not has_snap:
return tr(
'One layer is selected in the list, so at least one snapping mode is mandatory.'
)
missing_layers = []
for layer in layers:
wfs_layers_list = QgsProject.instance().readListEntry(
'WFSLayers', '')[0]
for wfs_layer in wfs_layers_list:
if layer == wfs_layer:
break
else:
missing_layers.append(layer)
if missing_layers:
missing_layers = [
QgsProject.instance().mapLayer(layer_id).name()
for layer_id in missing_layers
]
msg = tr(
'The layer "{}" for the snapping must be checked in the "WFS Capabilities"\n'
' option of the QGIS Server tab in the "Project Properties" dialog.'
.format(', '.join(missing_layers)))
return msg
def processAlgorithm(self, context, feedback):
layer = QgsProcessingUtils.mapLayerFromString(
self.getParameterValue(self.INPUT), context)
method = self.getParameterValue(self.METHOD)
geometryType = layer.geometryType()
fields = layer.fields()
export_z = False
export_m = False
if geometryType == QgsWkbTypes.PolygonGeometry:
areaName = vector.createUniqueFieldName('area', fields)
fields.append(QgsField(areaName, QVariant.Double))
perimeterName = vector.createUniqueFieldName('perimeter', fields)
fields.append(QgsField(perimeterName, QVariant.Double))
elif geometryType == QgsWkbTypes.LineGeometry:
lengthName = vector.createUniqueFieldName('length', fields)
fields.append(QgsField(lengthName, QVariant.Double))
else:
xName = vector.createUniqueFieldName('xcoord', fields)
fields.append(QgsField(xName, QVariant.Double))
yName = vector.createUniqueFieldName('ycoord', fields)
fields.append(QgsField(yName, QVariant.Double))
if QgsWkbTypes.hasZ(layer.wkbType()):
export_z = True
zName = vector.createUniqueFieldName('zcoord', fields)
fields.append(QgsField(zName, QVariant.Double))
if QgsWkbTypes.hasM(layer.wkbType()):
export_m = True
zName = vector.createUniqueFieldName('mvalue', fields)
fields.append(QgsField(zName, QVariant.Double))
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
fields, layer.wkbType(), layer.crs(), context)
ellips = None
crs = None
coordTransform = None
# Calculate with:
# 0 - layer CRS
# 1 - project CRS
# 2 - ellipsoidal
if method == 2:
ellips = QgsProject.instance().ellipsoid()
crs = layer.crs().srsid()
elif method == 1:
mapCRS = iface.mapCanvas().mapSettings().destinationCrs()
layCRS = layer.crs()
coordTransform = QgsCoordinateTransform(layCRS, mapCRS)
outFeat = QgsFeature()
outFeat.initAttributes(len(fields))
outFeat.setFields(fields)
features = QgsProcessingUtils.getFeatures(layer, context)
total = 100.0 / QgsProcessingUtils.featureCount(layer, context)
for current, f in enumerate(features):
inGeom = f.geometry()
if method == 1:
inGeom.transform(coordTransform)
(attr1, attr2) = vector.simpleMeasure(inGeom, method, ellips, crs)
outFeat.setGeometry(inGeom)
attrs = f.attributes()
attrs.append(attr1)
if attr2 is not None:
attrs.append(attr2)
# add point z/m
if export_z:
attrs.append(inGeom.geometry().z())
if export_m:
attrs.append(inGeom.geometry().m())
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
feedback.setProgress(int(current * total))
del writer
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(
self.invalidSourceError(parameters, self.INPUT))
index = self.parameterAsEnum(parameters, self.TYPE, context)
if index == 0:
newType = QgsWkbTypes.Point
elif index == 1:
newType = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
elif index == 2:
newType = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
elif index == 3:
newType = QgsWkbTypes.MultiLineString
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
else:
newType = QgsWkbTypes.Polygon
if QgsWkbTypes.hasM(source.wkbType()):
newType = QgsWkbTypes.addM(newType)
if QgsWkbTypes.hasZ(source.wkbType()):
newType = QgsWkbTypes.addZ(newType)
(sink, dest_id) = self.parameterAsSink(parameters,
self.OUTPUT, context,
source.fields(), newType,
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
for current, f in enumerate(features):
if feedback.isCanceled():
break
if not f.hasGeometry():
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
for p in self.convertGeometry(f.geometry(), index):
feat = QgsFeature()
feat.setAttributes(f.attributes())
feat.setGeometry(p)
sink.addFeature(feat, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
fields = source.fields()
fields.append(QgsField('node_pos', QVariant.Int))
fields.append(QgsField('node_index', QVariant.Int))
fields.append(QgsField('distance', QVariant.Double))
fields.append(QgsField('angle', QVariant.Double))
fields.append(QgsField('NUM_FIELD', QVariant.Int))
wkb_type = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
wkb_type = QgsWkbTypes.addM(wkb_type)
if QgsWkbTypes.hasZ(source.wkbType()):
wkb_type = QgsWkbTypes.addZ(wkb_type)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT,
context, fields, wkb_type,
source.sourceCrs())
node_indices_string = self.parameterAsString(parameters, self.NODES,
context)
indices = []
for node in node_indices_string.split(','):
try:
indices.append(int(node))
except:
raise QgsProcessingException(
self.tr('\'{}\' is not a valid node index').format(node))
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
input_geometry = f.geometry()
if not input_geometry:
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
total_nodes = input_geometry.geometry().nCoordinates()
for node in indices:
if node < 0:
node_index = total_nodes + node
else:
node_index = node
if node_index < 0 or node_index >= total_nodes:
continue
distance = input_geometry.distanceToVertex(node_index)
angle = math.degrees(
input_geometry.angleAtVertex(node_index))
output_feature = QgsFeature()
attrs = f.attributes()
attrs.append(node)
attrs.append(node_index)
attrs.append(distance)
attrs.append(angle)
output_feature.setAttributes(attrs)
point = input_geometry.vertexAt(node_index)
output_feature.setGeometry(QgsGeometry(point))
sink.addFeature(output_feature, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
fields = source.fields()
fields.append(QgsField('vertex_pos', QVariant.Int))
fields.append(QgsField('vertex_index', QVariant.Int))
fields.append(QgsField('vertex_part', QVariant.Int))
if QgsWkbTypes.geometryType(source.wkbType()) == QgsWkbTypes.PolygonGeometry:
fields.append(QgsField('vertex_part_ring', QVariant.Int))
fields.append(QgsField('vertex_part_index', QVariant.Int))
fields.append(QgsField('distance', QVariant.Double))
fields.append(QgsField('angle', QVariant.Double))
wkb_type = QgsWkbTypes.Point
if QgsWkbTypes.hasM(source.wkbType()):
wkb_type = QgsWkbTypes.addM(wkb_type)
if QgsWkbTypes.hasZ(source.wkbType()):
wkb_type = QgsWkbTypes.addZ(wkb_type)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, wkb_type, source.sourceCrs(), QgsFeatureSink.RegeneratePrimaryKey)
if sink is None:
raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
vertex_indices_string = self.parameterAsString(parameters, self.VERTICES, context)
indices = []
for vertex in vertex_indices_string.split(','):
try:
indices.append(int(vertex))
except:
raise QgsProcessingException(
self.tr('\'{}\' is not a valid vertex index').format(vertex))
features = source.getFeatures(QgsFeatureRequest(), QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
input_geometry = f.geometry()
if not input_geometry:
sink.addFeature(f, QgsFeatureSink.FastInsert)
else:
total_vertices = input_geometry.constGet().nCoordinates()
for vertex in indices:
if vertex < 0:
vertex_index = total_vertices + vertex
else:
vertex_index = vertex
if vertex_index < 0 or vertex_index >= total_vertices:
continue
(success, vertex_id) = input_geometry.vertexIdFromVertexNr(vertex_index)
distance = input_geometry.distanceToVertex(vertex_index)
angle = math.degrees(input_geometry.angleAtVertex(vertex_index))
output_feature = QgsFeature()
attrs = f.attributes()
attrs.append(vertex)
attrs.append(vertex_index)
attrs.append(vertex_id.part)
if QgsWkbTypes.geometryType(source.wkbType()) == QgsWkbTypes.PolygonGeometry:
attrs.append(vertex_id.ring)
attrs.append(vertex_id.vertex)
attrs.append(distance)
attrs.append(angle)
output_feature.setAttributes(attrs)
point = input_geometry.vertexAt(vertex_index)
output_feature.setGeometry(QgsGeometry(point))
sink.addFeature(output_feature, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
group_field_name = self.parameterAsString(parameters, self.GROUP_FIELD, context)
order_field_name = self.parameterAsString(parameters, self.ORDER_FIELD, context)
date_format = self.parameterAsString(parameters, self.DATE_FORMAT, context)
mvalue_exp = self.parameterAsExpression(parameters, self.MVALUE_EXPRESSION, context)
text_dir = self.parameterAsString(parameters, self.OUTPUT_TEXT_DIR, context)
QgsMessageLog.logMessage("-"*80)
QgsMessageLog.logMessage(str(mvalue_exp))
QgsMessageLog.logMessage(mvalue_exp.__class__.__name__)
# instantiate the expression if mvalue is set
if mvalue_exp:
expression = QgsExpression(mvalue_exp)
expression_ctx = self.createExpressionContext(parameters, context)
expression.prepare(expression_ctx)
else:
expression = None
group_field_index = source.fields().lookupField(group_field_name)
order_field_index = source.fields().lookupField(order_field_name)
if group_field_index >= 0:
group_field_def = source.fields().at(group_field_index)
else:
group_field_def = None
order_field_def = source.fields().at(order_field_index)
fields = QgsFields()
if group_field_def is not None:
fields.append(group_field_def)
begin_field = QgsField(order_field_def)
begin_field.setName('begin')
fields.append(begin_field)
end_field = QgsField(order_field_def)
end_field.setName('end')
fields.append(end_field)
output_wkb = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()) or mvalue_exp:
output_wkb = QgsWkbTypes.addM(output_wkb)
if QgsWkbTypes.hasZ(source.wkbType()):
output_wkb = QgsWkbTypes.addZ(output_wkb)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, output_wkb, source.sourceCrs())
if sink is None:
raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
points = dict()
referencedColumns = expression.referencedAttributeIndexes(source.fields()) if expression else [group_field_index, order_field_index]
features = source.getFeatures(QgsFeatureRequest().setSubsetOfAttributes(referencedColumns), QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
if not f.hasGeometry():
continue
point = f.geometry().constGet().clone()
if group_field_index >= 0:
group = f.attributes()[group_field_index]
else:
group = 1
order = f.attributes()[order_field_index]
if date_format != '':
order = datetime.strptime(str(order), date_format)
if group in points:
points[group].append((order, point, f))
else:
points[group] = [(order, point, f)]
feedback.setProgress(int(current * total))
feedback.setProgress(0)
da = QgsDistanceArea()
da.setSourceCrs(source.sourceCrs(), context.transformContext())
da.setEllipsoid(context.project().ellipsoid())
current = 0
total = 100.0 / len(points) if points else 1
for group, vertices in list(points.items()):
if feedback.isCanceled():
break
vertices.sort(key=lambda x: (x[0] is None, x[0]))
f = QgsFeature()
attributes = []
if group_field_index >= 0:
attributes.append(group)
attributes.extend([vertices[0][0], vertices[-1][0]])
f.setAttributes(attributes)
line = [node[1] for node in vertices]
if text_dir:
fileName = os.path.join(text_dir, '%s.txt' % group)
with open(fileName, 'w') as fl:
fl.write('angle=Azimuth\n')
fl.write('heading=Coordinate_System\n')
fl.write('dist_units=Default\n')
for i in range(len(line)):
if i == 0:
fl.write('startAt=%f;%f;90\n' % (line[i].x(), line[i].y()))
fl.write('survey=Polygonal\n')
fl.write('[data]\n')
else:
angle = line[i - 1].azimuth(line[i])
distance = da.measureLine(QgsPointXY(line[i - 1]), QgsPointXY(line[i]))
fl.write('%f;%f;90\n' % (angle, distance))
linestring = QgsLineString(line)
if mvalue_exp:
linestring.addMValue(0)
for i, node in enumerate(vertices):
QgsMessageLog.logMessage(node[2].__class__.__name__)
expression_ctx.setFeature(node[2])
mvalue = expression.evaluate(expression_ctx)
if expression.hasEvalError():
raise QgsProcessingException(
self.tr('Evaluation error: {0}').format(expression.evalErrorString()))
QgsMessageLog.logMessage("evaluating mvalue at {} to {} {}".format(i, mvalue, mvalue.__class__))
# mvalue = 12 # TODO : remove
QgsMessageLog.logMessage("setting mvalue at {} to {} {}".format(i, mvalue, mvalue.__class__))
linestring.setMAt(i, mvalue)
# test = linestring.mAt(i) # TODO : remove
# QgsMessageLog.logMessage("mvalue at {} is {} {}".format(i, test, test.__class__)) # TODO : remove
f.setGeometry(QgsGeometry(linestring))
sink.addFeature(f, QgsFeatureSink.FastInsert)
current += 1
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
method = self.parameterAsEnum(parameters, self.METHOD, context)
wkb_type = source.wkbType()
fields = source.fields()
new_fields = QgsFields()
if QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.PolygonGeometry:
new_fields.append(QgsField('area', QVariant.Double))
new_fields.append(QgsField('perimeter', QVariant.Double))
elif QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.LineGeometry:
new_fields.append(QgsField('length', QVariant.Double))
if not QgsWkbTypes.isMultiType(source.wkbType()):
new_fields.append(QgsField('straightdis', QVariant.Double))
new_fields.append(QgsField('sinuosity', QVariant.Double))
else:
new_fields.append(QgsField('xcoord', QVariant.Double))
new_fields.append(QgsField('ycoord', QVariant.Double))
if QgsWkbTypes.hasZ(source.wkbType()):
self.export_z = True
new_fields.append(QgsField('zcoord', QVariant.Double))
if QgsWkbTypes.hasM(source.wkbType()):
self.export_m = True
new_fields.append(QgsField('mvalue', QVariant.Double))
fields = QgsProcessingUtils.combineFields(fields, new_fields)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, wkb_type, source.sourceCrs())
if sink is None:
raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
coordTransform = None
# Calculate with:
# 0 - layer CRS
# 1 - project CRS
# 2 - ellipsoidal
self.distance_area = QgsDistanceArea()
if method == 2:
self.distance_area.setSourceCrs(source.sourceCrs(), context.transformContext())
self.distance_area.setEllipsoid(context.project().ellipsoid())
elif method == 1:
coordTransform = QgsCoordinateTransform(source.sourceCrs(), context.project().crs(), context.project())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
outFeat = f
attrs = f.attributes()
inGeom = f.geometry()
if inGeom:
if coordTransform is not None:
inGeom.transform(coordTransform)
if inGeom.type() == QgsWkbTypes.PointGeometry:
attrs.extend(self.point_attributes(inGeom))
elif inGeom.type() == QgsWkbTypes.PolygonGeometry:
attrs.extend(self.polygon_attributes(inGeom))
else:
attrs.extend(self.line_attributes(inGeom))
# ensure consistent count of attributes - otherwise null
# geometry features will have incorrect attribute length
# and provider may reject them
if len(attrs) < len(fields):
attrs += [NULL] * (len(fields) - len(attrs))
outFeat.setAttributes(attrs)
sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
method = self.parameterAsEnum(parameters, self.METHOD, context)
wkb_type = source.wkbType()
fields = source.fields()
new_fields = QgsFields()
if QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.PolygonGeometry:
new_fields.append(QgsField('area', QVariant.Double))
new_fields.append(QgsField('perimeter', QVariant.Double))
elif QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.LineGeometry:
new_fields.append(QgsField('length', QVariant.Double))
else:
new_fields.append(QgsField('xcoord', QVariant.Double))
new_fields.append(QgsField('ycoord', QVariant.Double))
if QgsWkbTypes.hasZ(source.wkbType()):
self.export_z = True
new_fields.append(QgsField('zcoord', QVariant.Double))
if QgsWkbTypes.hasM(source.wkbType()):
self.export_m = True
new_fields.append(QgsField('mvalue', QVariant.Double))
fields = QgsProcessingUtils.combineFields(fields, new_fields)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT,
context, fields, wkb_type,
source.sourceCrs())
coordTransform = None
# Calculate with:
# 0 - layer CRS
# 1 - project CRS
# 2 - ellipsoidal
self.distance_area = QgsDistanceArea()
if method == 2:
self.distance_area.setSourceCrs(source.sourceCrs())
self.distance_area.setEllipsoid(context.project().ellipsoid())
elif method == 1:
coordTransform = QgsCoordinateTransform(source.sourceCrs(),
context.project().crs())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
outFeat = f
attrs = f.attributes()
inGeom = f.geometry()
if inGeom:
if coordTransform is not None:
inGeom.transform(coordTransform)
if inGeom.type() == QgsWkbTypes.PointGeometry:
attrs.extend(self.point_attributes(inGeom))
elif inGeom.type() == QgsWkbTypes.PolygonGeometry:
attrs.extend(self.polygon_attributes(inGeom))
else:
attrs.extend(self.line_attributes(inGeom))
outFeat.setAttributes(attrs)
sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def processAlgorithm(self, progress):
layer = dataobjects.getObjectFromUri(
self.getParameterValue(self.INPUT))
method = self.getParameterValue(self.METHOD)
geometryType = layer.geometryType()
fields = layer.fields()
export_z = False
export_m = False
if geometryType == QgsWkbTypes.PolygonGeometry:
areaName = vector.createUniqueFieldName('area', fields)
fields.append(QgsField(areaName, QVariant.Double))
perimeterName = vector.createUniqueFieldName('perimeter', fields)
fields.append(QgsField(perimeterName, QVariant.Double))
elif geometryType == QgsWkbTypes.LineGeometry:
lengthName = vector.createUniqueFieldName('length', fields)
fields.append(QgsField(lengthName, QVariant.Double))
else:
xName = vector.createUniqueFieldName('xcoord', fields)
fields.append(QgsField(xName, QVariant.Double))
yName = vector.createUniqueFieldName('ycoord', fields)
fields.append(QgsField(yName, QVariant.Double))
if QgsWkbTypes.hasZ(layer.wkbType()):
export_z = True
zName = vector.createUniqueFieldName('zcoord', fields)
fields.append(QgsField(zName, QVariant.Double))
if QgsWkbTypes.hasM(layer.wkbType()):
export_m = True
zName = vector.createUniqueFieldName('mvalue', fields)
fields.append(QgsField(zName, QVariant.Double))
writer = self.getOutputFromName(self.OUTPUT).getVectorWriter(
fields.toList(), layer.wkbType(), layer.crs())
ellips = None
crs = None
coordTransform = None
# Calculate with:
# 0 - layer CRS
# 1 - project CRS
# 2 - ellipsoidal
if method == 2:
ellips = QgsProject.instance().readEntry('Measure', '/Ellipsoid',
'NONE')[0]
crs = layer.crs().srsid()
elif method == 1:
mapCRS = iface.mapCanvas().mapSettings().destinationCrs()
layCRS = layer.crs()
coordTransform = QgsCoordinateTransform(layCRS, mapCRS)
outFeat = QgsFeature()
inGeom = QgsGeometry()
outFeat.initAttributes(len(fields))
outFeat.setFields(fields)
features = vector.features(layer)
total = 100.0 / len(features)
for current, f in enumerate(features):
inGeom = f.geometry()
if method == 1:
inGeom.transform(coordTransform)
(attr1, attr2) = vector.simpleMeasure(inGeom, method, ellips, crs)
outFeat.setGeometry(inGeom)
attrs = f.attributes()
attrs.append(attr1)
if attr2 is not None:
attrs.append(attr2)
# add point z/m
if export_z:
attrs.append(inGeom.geometry().z())
if export_m:
attrs.append(inGeom.geometry().m())
outFeat.setAttributes(attrs)
writer.addFeature(outFeat)
progress.setPercentage(int(current * total))
del writer
def processAlgorithm(self, parameters, context, model_feedback):
feedback = QgsProcessingMultiStepFeedback(2, model_feedback)
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(
self.invalidSourceError(parameters, self.INPUT))
group_field_name = self.parameterAsString(parameters, self.GROUP_FIELD,
context)
order_field_name = self.parameterAsString(parameters, self.ORDER_FIELD,
context)
date_format = self.parameterAsString(parameters, self.DATE_FORMAT,
context)
group_field_index = source.fields().lookupField(group_field_name)
order_field_index = source.fields().lookupField(order_field_name)
field_names = self.parameterAsFields(parameters, self.FIELDS, context)
if group_field_index >= 0:
group_field_def = source.fields().at(group_field_index)
else:
group_field_def = None
order_field_def = source.fields().at(order_field_index)
#Create output for lines
fields = QgsFields()
self.addFields(source, fields, 'start_order', field_names,
order_field_def)
self.addFields(source, fields, 'end_order', field_names,
order_field_def)
fields.append(QgsField('COUNT', QVariant.LongLong))
output_wkb = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()):
output_wkb = QgsWkbTypes.addM(output_wkb)
if QgsWkbTypes.hasZ(source.wkbType()):
output_wkb = QgsWkbTypes.addZ(output_wkb)
(self.sink,
self.dest_id) = self.parameterAsSink(parameters, self.OUTPUT_LINE,
context, fields, output_wkb,
source.sourceCrs())
if self.sink is None:
raise QgsProcessingException(
self.invalidSinkError(parameters, self.OUTPUT_LINE))
#Create output for Points
fields_point = QgsFields()
fields_point.append(QgsField("fid", QVariant.Int, "int", 9, 0))
self.addFields(source, fields_point, 'end_order', field_names)
fields_point.append(QgsField("COUNT", QVariant.LongLong))
fields_point.append(QgsField("COUNT_IN", QVariant.LongLong))
fields_point.append(QgsField("COUNT_OUT", QVariant.LongLong))
(self.sink_point, self.dest_id_point) = self.parameterAsSink(
parameters, self.OUTPUT_POINT, context, fields_point,
source.wkbType(), source.sourceCrs(),
QgsFeatureSink.RegeneratePrimaryKey)
if self.sink_point is None:
raise QgsProcessingException(
self.invalidSinkError(parameters, self.OUTPUT_POINT))
#Compute the lines
points = dict()
features = source.getFeatures(
QgsFeatureRequest(),
QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled(): return {}
if not f.hasGeometry(): continue
point = f.geometry().asPoint()
if group_field_index >= 0:
group = f[group_field_index]
else:
group = 1
order = f[order_field_index]
if date_format != '':
if isinstance(order, QDateTime):
pass
else:
try:
order = datetime.strptime(str(order), date_format)
except ValueError as ve:
feedback.reportError(
self.tr('Invalid format {}').format(ve))
return {}
data = [order, point]
for indice in self.field_indices:
data.append(f[indice])
if group in points:
points[group].append(data)
else:
points[group] = [data]
feedback.setProgress(int(current * total))
feedback.setCurrentStep(1)
#Create the features
current = 0
total = 100.0 / len(points) if points else 1
edge_ids = {}
end_points = {}
self.point_id = 0
for group, vertices in points.items():
if feedback.isCanceled(): return {}
feedback.setProgress(int(current * total))
# log("attrs: {}".format(vertices))
vertices.sort(key=lambda x: (x[0] is None, x[0]))
for i in range(len(vertices) - 1):
if feedback.isCanceled(): return {}
start_id = vertices[i][1].asWkt()
end_id = vertices[i + 1][1].asWkt()
edge_id = start_id + "-" + end_id
if edge_id in edge_ids:
f = edge_ids[edge_id]
count_index = 2 * (len(self.field_indices) + 1)
count = f.attribute(count_index) + 1
f.setAttribute(count_index, count)
else:
f = QgsFeature()
attrs = []
attrs.append(vertices[i][0]) #Add Order begin
for j in range(len(
self.field_indices)): #Add Attrs for begin
attrs.append(
vertices[i][j + 2]) # +2 ignore order and point
attrs.append(vertices[i + 1][0]) #Add Order end
for j in range(0, len(
self.field_indices)): #Add Attrs for end
attrs.append(
vertices[i + 1][j +
2]) # +2 ignore order and point
attrs.append(1) #Count = 1
f.setAttributes(attrs)
line = [vertices[i][1], vertices[i + 1][1]]
geom = QgsGeometry()
f.setGeometry(QgsGeometry(geom.fromPolylineXY(line)))
edge_ids[edge_id] = f
self.updatePoints(start_id, end_points, vertices[i], 'start')
self.updatePoints(end_id, end_points, vertices[i + 1], 'end')
current += 1
feedback.setProgress(int(current * total))
for id in edge_ids:
if feedback.isCanceled(): return {}
self.sink.addFeature(edge_ids[id], QgsFeatureSink.FastInsert)
for id in end_points:
if feedback.isCanceled(): return {}
self.sink_point.addFeature(end_points[id],
QgsFeatureSink.FastInsert)
return {self.OUTPUT_LINE: self.dest_id}
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
group_field_name = self.parameterAsString(parameters, self.GROUP_FIELD,
context)
order_field_name = self.parameterAsString(parameters, self.ORDER_FIELD,
context)
date_format = self.parameterAsString(parameters, self.DATE_FORMAT,
context)
text_dir = self.parameterAsString(parameters, self.OUTPUT_TEXT_DIR,
context)
group_field_index = source.fields().lookupField(group_field_name)
order_field_index = source.fields().lookupField(order_field_name)
if group_field_index >= 0:
group_field_def = source.fields().at(group_field_index)
else:
group_field_def = None
order_field_def = source.fields().at(order_field_index)
fields = QgsFields()
if group_field_def is not None:
fields.append(group_field_def)
begin_field = QgsField(order_field_def)
begin_field.setName('begin')
fields.append(begin_field)
end_field = QgsField(order_field_def)
end_field.setName('end')
fields.append(end_field)
output_wkb = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()):
output_wkb = QgsWkbTypes.addM(output_wkb)
if QgsWkbTypes.hasZ(source.wkbType()):
output_wkb = QgsWkbTypes.addZ(output_wkb)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT,
context, fields, output_wkb,
source.sourceCrs())
points = dict()
features = source.getFeatures(
QgsFeatureRequest().setSubsetOfAttributes(
[group_field_index, order_field_index]))
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
if not f.hasGeometry():
continue
point = f.geometry().constGet().clone()
if group_field_index >= 0:
group = f.attributes()[group_field_index]
else:
group = 1
order = f.attributes()[order_field_index]
if date_format != '':
order = datetime.strptime(str(order), date_format)
if group in points:
points[group].append((order, point))
else:
points[group] = [(order, point)]
feedback.setProgress(int(current * total))
feedback.setProgress(0)
da = QgsDistanceArea()
da.setSourceCrs(source.sourceCrs(), context.transformContext())
da.setEllipsoid(context.project().ellipsoid())
current = 0
total = 100.0 / len(points) if points else 1
for group, vertices in list(points.items()):
if feedback.isCanceled():
break
vertices.sort()
f = QgsFeature()
attributes = []
if group_field_index >= 0:
attributes.append(group)
attributes.extend([vertices[0][0], vertices[-1][0]])
f.setAttributes(attributes)
line = [node[1] for node in vertices]
if text_dir:
fileName = os.path.join(text_dir, '%s.txt' % group)
with open(fileName, 'w') as fl:
fl.write('angle=Azimuth\n')
fl.write('heading=Coordinate_System\n')
fl.write('dist_units=Default\n')
for i in range(len(line)):
if i == 0:
fl.write('startAt=%f;%f;90\n' %
(line[i].x(), line[i].y()))
fl.write('survey=Polygonal\n')
fl.write('[data]\n')
else:
angle = line[i - 1].azimuth(line[i])
distance = da.measureLine(QgsPointXY(line[i - 1]),
QgsPointXY(line[i]))
fl.write('%f;%f;90\n' % (angle, distance))
f.setGeometry(QgsGeometry(QgsLineString(line)))
sink.addFeature(f, QgsFeatureSink.FastInsert)
current += 1
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def __setlayerproperties(self):
self.__layergeometryType = self.__layer.geometryType()
self.__layerwkbType = self.__layer.wkbType()
self.__hasZ = QgsWkbTypes.hasZ(self.__layerwkbType)
self.__hasM = QgsWkbTypes.hasM(self.__layerwkbType)
self.__isMultiType = QgsWkbTypes.isMultiType(self.__layerwkbType)
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(
self.invalidSourceError(parameters, self.INPUT))
method = self.parameterAsEnum(parameters, self.METHOD, context)
wkb_type = source.wkbType()
fields = source.fields()
new_fields = QgsFields()
if QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.PolygonGeometry:
new_fields.append(QgsField('area', QVariant.Double))
new_fields.append(QgsField('perimeter', QVariant.Double))
elif QgsWkbTypes.geometryType(wkb_type) == QgsWkbTypes.LineGeometry:
new_fields.append(QgsField('length', QVariant.Double))
if not QgsWkbTypes.isMultiType(source.wkbType()):
new_fields.append(QgsField('straightdis', QVariant.Double))
new_fields.append(QgsField('sinuosity', QVariant.Double))
else:
new_fields.append(QgsField('xcoord', QVariant.Double))
new_fields.append(QgsField('ycoord', QVariant.Double))
if QgsWkbTypes.hasZ(source.wkbType()):
self.export_z = True
new_fields.append(QgsField('zcoord', QVariant.Double))
if QgsWkbTypes.hasM(source.wkbType()):
self.export_m = True
new_fields.append(QgsField('mvalue', QVariant.Double))
fields = QgsProcessingUtils.combineFields(fields, new_fields)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT,
context, fields, wkb_type,
source.sourceCrs())
if sink is None:
raise QgsProcessingException(
self.invalidSinkError(parameters, self.OUTPUT))
coordTransform = None
# Calculate with:
# 0 - layer CRS
# 1 - project CRS
# 2 - ellipsoidal
self.distance_area = QgsDistanceArea()
if method == 2:
self.distance_area.setSourceCrs(source.sourceCrs(),
context.transformContext())
self.distance_area.setEllipsoid(context.project().ellipsoid())
elif method == 1:
coordTransform = QgsCoordinateTransform(source.sourceCrs(),
context.project().crs(),
context.project())
features = source.getFeatures()
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
outFeat = f
attrs = f.attributes()
inGeom = f.geometry()
if inGeom:
if coordTransform is not None:
inGeom.transform(coordTransform)
if inGeom.type() == QgsWkbTypes.PointGeometry:
attrs.extend(self.point_attributes(inGeom))
elif inGeom.type() == QgsWkbTypes.PolygonGeometry:
attrs.extend(self.polygon_attributes(inGeom))
else:
attrs.extend(self.line_attributes(inGeom))
# ensure consistent count of attributes - otherwise null
# geometry features will have incorrect attribute length
# and provider may reject them
if len(attrs) < len(fields):
attrs += [NULL] * (len(fields) - len(attrs))
outFeat.setAttributes(attrs)
sink.addFeature(outFeat, QgsFeatureSink.FastInsert)
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def supportInPlaceEdit(self, layer):
return super().supportInPlaceEdit(layer) and QgsWkbTypes.hasM(
layer.wkbType())
def processAlgorithm(self, parameters, context, feedback):
source = self.parameterAsSource(parameters, self.INPUT, context)
if source is None:
raise QgsProcessingException(self.invalidSourceError(parameters, self.INPUT))
group_field_name = self.parameterAsString(parameters, self.GROUP_FIELD, context)
order_field_name = self.parameterAsString(parameters, self.ORDER_FIELD, context)
date_format = self.parameterAsString(parameters, self.DATE_FORMAT, context)
text_dir = self.parameterAsString(parameters, self.OUTPUT_TEXT_DIR, context)
group_field_index = source.fields().lookupField(group_field_name)
order_field_index = source.fields().lookupField(order_field_name)
if group_field_index >= 0:
group_field_def = source.fields().at(group_field_index)
else:
group_field_def = None
order_field_def = source.fields().at(order_field_index)
fields = QgsFields()
if group_field_def is not None:
fields.append(group_field_def)
begin_field = QgsField(order_field_def)
begin_field.setName('begin')
fields.append(begin_field)
end_field = QgsField(order_field_def)
end_field.setName('end')
fields.append(end_field)
output_wkb = QgsWkbTypes.LineString
if QgsWkbTypes.hasM(source.wkbType()):
output_wkb = QgsWkbTypes.addM(output_wkb)
if QgsWkbTypes.hasZ(source.wkbType()):
output_wkb = QgsWkbTypes.addZ(output_wkb)
(sink, dest_id) = self.parameterAsSink(parameters, self.OUTPUT, context,
fields, output_wkb, source.sourceCrs())
if sink is None:
raise QgsProcessingException(self.invalidSinkError(parameters, self.OUTPUT))
points = dict()
features = source.getFeatures(QgsFeatureRequest().setSubsetOfAttributes([group_field_index, order_field_index]), QgsProcessingFeatureSource.FlagSkipGeometryValidityChecks)
total = 100.0 / source.featureCount() if source.featureCount() else 0
for current, f in enumerate(features):
if feedback.isCanceled():
break
if not f.hasGeometry():
continue
point = f.geometry().constGet().clone()
if group_field_index >= 0:
group = f.attributes()[group_field_index]
else:
group = 1
order = f.attributes()[order_field_index]
if date_format != '':
order = datetime.strptime(str(order), date_format)
if group in points:
points[group].append((order, point))
else:
points[group] = [(order, point)]
feedback.setProgress(int(current * total))
feedback.setProgress(0)
da = QgsDistanceArea()
da.setSourceCrs(source.sourceCrs(), context.transformContext())
da.setEllipsoid(context.project().ellipsoid())
current = 0
total = 100.0 / len(points) if points else 1
for group, vertices in list(points.items()):
if feedback.isCanceled():
break
vertices.sort(key=lambda x: (x[0] is None, x[0]))
f = QgsFeature()
attributes = []
if group_field_index >= 0:
attributes.append(group)
attributes.extend([vertices[0][0], vertices[-1][0]])
f.setAttributes(attributes)
line = [node[1] for node in vertices]
if text_dir:
fileName = os.path.join(text_dir, '%s.txt' % group)
with open(fileName, 'w') as fl:
fl.write('angle=Azimuth\n')
fl.write('heading=Coordinate_System\n')
fl.write('dist_units=Default\n')
for i in range(len(line)):
if i == 0:
fl.write('startAt=%f;%f;90\n' % (line[i].x(), line[i].y()))
fl.write('survey=Polygonal\n')
fl.write('[data]\n')
else:
angle = line[i - 1].azimuth(line[i])
distance = da.measureLine(QgsPointXY(line[i - 1]), QgsPointXY(line[i]))
fl.write('%f;%f;90\n' % (angle, distance))
f.setGeometry(QgsGeometry(QgsLineString(line)))
sink.addFeature(f, QgsFeatureSink.FastInsert)
current += 1
feedback.setProgress(int(current * total))
return {self.OUTPUT: dest_id}
def make_features_compatible(new_features, input_layer):
"""Try to make the new features compatible with old features by:
- converting single to multi part
- dropping additional attributes
- adding back M/Z values
- drop Z/M
- convert multi part to single part
:param new_features: new features
:type new_features: list of QgsFeatures
:param input_layer: input layer
:type input_layer: QgsVectorLayer
:return: modified features
:rtype: list of QgsFeatures
"""
input_wkb_type = input_layer.wkbType()
result_features = []
for new_f in new_features:
# Fix attributes
if new_f.fields().count() > 0:
attributes = []
for field in input_layer.fields():
if new_f.fields().indexFromName(field.name()) >= 0:
attributes.append(new_f[field.name()])
else:
attributes.append(None)
f = QgsFeature(input_layer.fields())
f.setAttributes(attributes)
f.setGeometry(new_f.geometry())
new_f = f
else:
lendiff = len(new_f.attributes()) - len(input_layer.fields())
if lendiff > 0:
f = QgsFeature(input_layer.fields())
f.setGeometry(new_f.geometry())
f.setAttributes(new_f.attributes()[:len(input_layer.fields())])
new_f = f
elif lendiff < 0:
f = QgsFeature(input_layer.fields())
f.setGeometry(new_f.geometry())
attributes = new_f.attributes() + [
None for i in range(-lendiff)
]
f.setAttributes(attributes)
new_f = f
# Check if we need geometry manipulation
new_f_geom_type = QgsWkbTypes.geometryType(new_f.geometry().wkbType())
new_f_has_geom = new_f_geom_type not in (QgsWkbTypes.UnknownGeometry,
QgsWkbTypes.NullGeometry)
input_layer_has_geom = input_wkb_type not in (QgsWkbTypes.NoGeometry,
QgsWkbTypes.Unknown)
# Drop geometry if layer is geometry-less
if not input_layer_has_geom and new_f_has_geom:
f = QgsFeature(input_layer.fields())
f.setAttributes(new_f.attributes())
new_f = f
result_features.append(new_f)
continue # skip the rest
if input_layer_has_geom and new_f_has_geom and \
new_f.geometry().wkbType() != input_wkb_type: # Fix geometry
# Single -> Multi
if (QgsWkbTypes.isMultiType(input_wkb_type)
and not new_f.geometry().isMultipart()):
new_geom = new_f.geometry()
new_geom.convertToMultiType()
new_f.setGeometry(new_geom)
# Drop Z/M
if (new_f.geometry().constGet().is3D()
and not QgsWkbTypes.hasZ(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().dropZValue()
new_f.setGeometry(new_geom)
if (new_f.geometry().constGet().isMeasure()
and not QgsWkbTypes.hasM(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().dropMValue()
new_f.setGeometry(new_geom)
# Add Z/M back (set it to 0)
if (not new_f.geometry().constGet().is3D()
and QgsWkbTypes.hasZ(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().addZValue(0.0)
new_f.setGeometry(new_geom)
if (not new_f.geometry().constGet().isMeasure()
and QgsWkbTypes.hasM(input_wkb_type)):
new_geom = new_f.geometry()
new_geom.get().addMValue(0.0)
new_f.setGeometry(new_geom)
# Multi -> Single
if (not QgsWkbTypes.isMultiType(input_wkb_type)
and new_f.geometry().isMultipart()):
g = new_f.geometry()
g2 = g.constGet()
for i in range(g2.partCount()):
# Clone or crash!
g4 = QgsGeometry(g2.geometryN(i).clone())
f = QgsVectorLayerUtils.createFeature(
input_layer, g4, {
i: new_f.attribute(i)
for i in range(new_f.fields().count())
})
result_features.append(f)
else:
result_features.append(new_f)
else:
result_features.append(new_f)
return result_features
