129 geometry.
set(
nullptr );
151 if ( !ring->isClosed() )
165 if ( !targetFeatureIds.isEmpty() )
178 bool success =
false;
189 addRingReturnCode = g.
addRing(
static_cast< QgsCurve *
>( ring->clone() ) );
193 addRingReturnCode = g.
addRing(
static_cast< QgsCurve *
>( ring->reversed() ) );
199 if ( modifiedFeatureIds )
201 modifiedFeatureIds->insert( f.
id() );
217 for ( QVector<QgsPointXY>::const_iterator it = ring.constBegin(); it != ring.constEnd(); ++it )
221 return addRing( l, targetFeatureIds, modifiedFeatureId );
227 return addRing( ringLine, targetFeatureIds, modifiedFeatureId );
232 std::unique_ptr<QgsCurve> uniquePtrRing( ring );
233 if ( modifiedFeatureId )
237 *modifiedFeatureId = *modifiedFeatureIds->begin();
240 return staticAddRing( mLayer, uniquePtrRing, targetFeatureIds,
nullptr,
true );
246 std::unique_ptr<QgsCurve> uniquePtrRing( ring );
247 return staticAddRing( mLayer, uniquePtrRing, targetFeatureIds, modifiedFeatureIds,
false );
255 for ( QVector<QgsPointXY>::const_iterator it = points.constBegin(); it != points.constEnd(); ++it )
259 return addPart( l, featureId );
268 bool firstPart =
false;
304 bool firstPart =
false;
361 for ( QVector<QgsPointXY>::const_iterator it = splitLine.constBegin(); it != splitLine.constEnd(); ++it )
372 bool preserveCircular =
false;
373 return splitFeatures( &lineString, topologyTestPoints, preserveCircular, topologicalEditing );
384 int numberOfSplitFeatures = 0;
392 if ( !selectedIds.isEmpty() )
409 else if ( bBox.
height() == 0.0 && bBox.
width() > 0 )
417 double bufferDistance = 0.000001;
419 bufferDistance = 0.00000001;
441 QVector<QgsGeometry> newGeometries;
445 splitFunctionReturn = featureGeom.
splitGeometry( curve, newGeometries, preserveCircular, topologicalEditing, featureTopologyTestPoints );
446 topologyTestPoints.append( featureTopologyTestPoints );
454 for (
int fieldIdx = 0; fieldIdx < fieldCount; ++fieldIdx )
468 const double originalValue = feat.
attribute( fieldIdx ).toDouble();
470 double originalSize = 0;
472 switch ( originalGeom.
type() )
480 originalSize = originalGeom.
length();
483 originalSize = originalGeom.
area();
488 switch ( featureGeom.
type() )
496 newSize = featureGeom.
length();
499 newSize = featureGeom.
area();
503 attributeMap.insert( fieldIdx, originalSize > 0 ? ( originalValue * newSize / originalSize ) : originalValue );
510 if ( !attributeMap.isEmpty() )
516 for (
const QgsGeometry &geom : std::as_const( newGeometries ) )
519 for (
int fieldIdx = 0; fieldIdx < fieldCount; ++fieldIdx )
530 attributeMap.insert( fieldIdx, feat.
attribute( fieldIdx ) );
537 attributeMap.insert( fieldIdx, feat.
attribute( fieldIdx ) );
541 const double originalValue = feat.
attribute( fieldIdx ).toDouble();
543 double originalSize = 0;
545 switch ( originalGeom.
type() )
553 originalSize = originalGeom.
length();
556 originalSize = originalGeom.
area();
561 switch ( geom.type() )
569 newSize = geom.length();
572 newSize = geom.area();
576 attributeMap.insert( fieldIdx, originalSize > 0 ? ( originalValue * newSize / originalSize ) : originalValue );
590 if ( topologicalEditing )
592 QgsPointSequence::const_iterator topol_it = featureTopologyTestPoints.constBegin();
593 for ( ; topol_it != featureTopologyTestPoints.constEnd(); ++topol_it )
598 ++numberOfSplitFeatures;
602 returnCode = splitFunctionReturn;
606 if ( !featuresDataToAdd.isEmpty() )
614 if ( numberOfSplitFeatures == 0 )
625 for ( QVector<QgsPointXY>::const_iterator it = splitLine.constBegin(); it != splitLine.constEnd(); ++it )
637 double xMin, yMin, xMax, yMax;
639 int numberOfSplitParts = 0;
649 if ( boundingBoxFromPointList( splitLine, xMin, yMin, xMax, yMax ) )
669 else if ( bBox.
height() == 0.0 && bBox.
width() > 0 )
677 double bufferDistance = 0.000001;
679 bufferDistance = 0.00000001;
696 QVector<QgsGeometry> resultCollection;
700 QVector<QgsGeometry> newGeometries;
703 const Qgis::GeometryOperationResult splitFunctionReturn = part.splitGeometry( splitLine, newGeometries, topologicalEditing, partTopologyTestPoints,
false );
707 for (
int i = 0; i < newGeometries.size(); ++i )
709 resultCollection.append( newGeometries.at( i ).asGeometryCollection() );
712 topologyTestPoints.append( partTopologyTestPoints );
714 ++numberOfSplitParts;
722 resultCollection.append( part );
726 return splitFunctionReturn;
733 if ( topologicalEditing )
735 QgsPointSequence::const_iterator topol_it = topologyTestPoints.constBegin();
736 for ( ; topol_it != topologyTestPoints.constEnd(); ++topol_it )
764 bool pointsAdded =
false;
776 return pointsAdded ? 0 : 2;
784 double segmentSearchEpsilon = mLayer->
crs().
isGeographic() ? 1e-12 : 1e-8;
804 searchRect.
grow( threshold );
808 .setFilterRect( searchRect )
810 .setNoAttributes() );
812 bool pointsAdded =
false;
823 return pointsAdded ? 0 : 2;
836 bool pointsAdded =
false;
838 QgsPointSequence::const_iterator it = ps.constBegin();
839 while ( it != ps.constEnd() )
848 return pointsAdded ? 0 : 2;
858 errorMessage.clear();
860 if ( mergeFeatureIds.isEmpty() )
862 errorMessage = QObject::tr(
"List of features to merge is empty" );
867 for (
int i = 0; i < mergeAttributes.count(); ++i )
869 QVariant val = mergeAttributes.at( i );
876 QString errorMessageConvertCompatible;
879 if ( errorMessage.isEmpty() )
880 errorMessage = QObject::tr(
"Could not store value '%1' in field of type %2: %3" ).arg( mergeAttributes.at( i ).toString(), mLayer->
fields().
at( i ).
typeName(), errorMessageConvertCompatible );
882 newAttributes[ i ] = val;
888 QgsFeatureIds::const_iterator feature_it = mergeFeatureIds.constBegin();
889 for ( ; feature_it != mergeFeatureIds.constEnd(); ++feature_it )
891 if ( *feature_it != targetFeatureId )
915bool QgsVectorLayerEditUtils::boundingBoxFromPointList(
const QgsPointSequence &list,
double &xmin,
double &ymin,
double &xmax,
double &ymax )
const
922 xmin = std::numeric_limits<double>::max();
923 xmax = -std::numeric_limits<double>::max();
924 ymin = std::numeric_limits<double>::max();
925 ymax = -std::numeric_limits<double>::max();
927 for ( QgsPointSequence::const_iterator it = list.constBegin(); it != list.constEnd(); ++it )
929 if ( it->x() < xmin )
933 if ( it->x() > xmax )
937 if ( it->y() < ymin )
941 if ( it->y() > ymax )
GeometryOperationResult
Success or failure of a geometry operation.
@ AddPartSelectedGeometryNotFound
The selected geometry cannot be found.
@ InvalidInputGeometryType
The input geometry (ring, part, split line, etc.) has not the correct geometry type.
@ Success
Operation succeeded.
@ AddRingNotInExistingFeature
The input ring doesn't have any existing ring to fit into.
@ AddRingNotClosed
The input ring is not closed.
@ NothingHappened
Nothing happened, without any error.
@ InvalidBaseGeometry
The base geometry on which the operation is done is invalid or empty.
@ LayerNotEditable
Cannot edit layer.
@ ExactIntersect
Use exact geometry intersection (slower) instead of bounding boxes.
@ GeometryRatio
New values are computed by the ratio of their area/length compared to the area/length of the original...
@ UnsetField
Clears the field value so that the data provider backend will populate using any backend triggers or ...
@ DefaultValue
Use default field value.
@ Duplicate
Duplicate original value.
@ Provider
Field originates from the underlying data provider of the vector layer.
VectorEditResult
Specifies the result of a vector layer edit operation.
@ EmptyGeometry
Edit operation resulted in an empty geometry.
@ Success
Edit operation was successful.
@ FetchFeatureFailed
Unable to fetch requested feature.
@ EditFailed
Edit operation failed.
@ InvalidLayer
Edit failed due to invalid layer.
The vertex_iterator class provides STL-style iterator for vertices.
virtual bool addZValue(double zValue=0)=0
Adds a z-dimension to the geometry, initialized to a preset value.
bool isMeasure() const
Returns true if the geometry contains m values.
virtual QgsRectangle boundingBox() const
Returns the minimal bounding box for the geometry.
bool is3D() const
Returns true if the geometry is 3D and contains a z-value.
virtual int nCoordinates() const
Returns the number of nodes contained in the geometry.
virtual bool addMValue(double mValue=0)=0
Adds a measure to the geometry, initialized to a preset value.
virtual bool hasCurvedSegments() const
Returns true if the geometry contains curved segments.
Qgis::DistanceUnit mapUnits
Abstract base class for curved geometry type.
Qgis::AngularDirection orientation() const
Returns the curve's orientation, e.g.
virtual QgsCurve * reversed() const =0
Returns a reversed copy of the curve, where the direction of the curve has been flipped.
Wrapper for iterator of features from vector data provider or vector layer.
bool nextFeature(QgsFeature &f)
Fetch next feature and stores in f, returns true on success.
This class wraps a request for features to a vector layer (or directly its vector data provider).
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
bool hasGeometry() const
Returns true if the feature has an associated geometry.
Q_INVOKABLE QVariant attribute(const QString &name) const
Lookup attribute value by attribute name.
Encapsulate a field in an attribute table or data source.
QString typeName() const
Gets the field type.
bool convertCompatible(QVariant &v, QString *errorMessage=nullptr) const
Converts the provided variant to a compatible format.
Qgis::FieldDomainSplitPolicy splitPolicy() const
Returns the field's split policy, which indicates how field values should be handled during a split o...
Qgis::FieldOrigin fieldOrigin(int fieldIdx) const
Returns the field's origin (value from an enumeration).
QgsField at(int i) const
Returns the field at particular index (must be in range 0..N-1).
int fieldOriginIndex(int fieldIdx) const
Returns the field's origin index (its meaning is specific to each type of origin).
double geometryPrecision() const
The precision in which geometries on this layer should be saved.
A geometry is the spatial representation of a feature.
bool deleteVertex(int atVertex)
Deletes the vertex at the given position number and item (first number is index 0)
double length() const
Returns the planar, 2-dimensional length of geometry.
bool addTopologicalPoint(const QgsPoint &point, double snappingTolerance=1e-8, double segmentSearchEpsilon=1e-12)
Adds a vertex to the segment which intersect point but don't already have a vertex there.
static QgsGeometry collectGeometry(const QVector< QgsGeometry > &geometries)
Creates a new multipart geometry from a list of QgsGeometry objects.
QVector< QgsGeometry > asGeometryCollection() const
Returns contents of the geometry as a list of geometries.
QgsAbstractGeometry * get()
Returns a modifiable (non-const) reference to the underlying abstract geometry primitive.
const QgsAbstractGeometry * constGet() const
Returns a non-modifiable (const) reference to the underlying abstract geometry primitive.
bool insertVertex(double x, double y, int beforeVertex)
Insert a new vertex before the given vertex index, ring and item (first number is index 0) If the req...
bool convertToSingleType()
Converts multi type geometry into single type geometry e.g.
Qgis::GeometryOperationResult addRing(const QVector< QgsPointXY > &ring)
Adds a new ring to this geometry.
double area() const
Returns the planar, 2-dimensional area of the geometry.
Qgis::AngularDirection polygonOrientation() const
Returns the orientation of the polygon.
void set(QgsAbstractGeometry *geometry)
Sets the underlying geometry store.
QgsAbstractGeometry::vertex_iterator vertices_begin() const
Returns STL-style iterator pointing to the first vertex of the geometry.
Qgis::GeometryOperationResult addPartV2(const QVector< QgsPointXY > &points, Qgis::WkbType wkbType=Qgis::WkbType::Unknown)
Adds a new part to a the geometry.
Qgis::GeometryOperationResult translate(double dx, double dy, double dz=0.0, double dm=0.0)
Translates this geometry by dx, dy, dz and dm.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitGeometry(const QVector< QgsPointXY > &splitLine, QVector< QgsGeometry > &newGeometries, bool topological, QVector< QgsPointXY > &topologyTestPoints, bool splitFeature=true)
Splits this geometry according to a given line.
bool moveVertex(double x, double y, int atVertex)
Moves the vertex at the given position number and item (first number is index 0) to the given coordin...
QgsAbstractGeometry::vertex_iterator vertices_end() const
Returns STL-style iterator pointing to the imaginary vertex after the last vertex of the geometry.
Line string geometry type, with support for z-dimension and m-values.
QgsCoordinateReferenceSystem crs
void triggerRepaint(bool deferredUpdate=false)
Will advise the map canvas (and any other interested party) that this layer requires to be repainted.
A class to represent a 2D point.
Point geometry type, with support for z-dimension and m-values.
A rectangle specified with double values.
double xMinimum() const
Returns the x minimum value (left side of rectangle).
void setYMinimum(double y)
Set the minimum y value.
double yMinimum() const
Returns the y minimum value (bottom side of rectangle).
void setXMinimum(double x)
Set the minimum x value.
double width() const
Returns the width of the rectangle.
double xMaximum() const
Returns the x maximum value (right side of rectangle).
double yMaximum() const
Returns the y maximum value (top side of rectangle).
void setYMaximum(double y)
Set the maximum y value.
void setXMaximum(double x)
Set the maximum x value.
void grow(double delta)
Grows the rectangle in place by the specified amount.
bool isEmpty() const
Returns true if the rectangle has no area.
double height() const
Returns the height of the rectangle.
T value(const QString &dynamicKeyPart=QString()) const
Returns settings value.
static const QgsSettingsEntryDouble * settingsDigitizingDefaultMValue
Settings entry digitizing default m value.
static const QgsSettingsEntryDouble * settingsDigitizingDefaultZValue
Settings entry digitizing default z value.
Represents a default, "not-specified" value for a feature attribute.
virtual bool doesStrictFeatureTypeCheck() const
Returns true if the provider is strict about the type of inserted features (e.g.
virtual QString defaultValueClause(int fieldIndex) const
Returns any default value clauses which are present at the provider for a specified field index.
int translateFeature(QgsFeatureId featureId, double dx, double dy)
Translates feature by dx, dy.
bool mergeFeatures(const QgsFeatureId &targetFeatureId, const QgsFeatureIds &mergeFeatureIds, const QgsAttributes &mergeAttributes, const QgsGeometry &unionGeometry, QString &errorMessage)
Merge features into a single one.
QgsVectorLayerEditUtils(QgsVectorLayer *layer)
bool insertVertex(double x, double y, QgsFeatureId atFeatureId, int beforeVertex)
Insert a new vertex before the given vertex number, in the given ring, item (first number is index 0)...
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addPart(const QVector< QgsPointXY > &ring, QgsFeatureId featureId)
Adds a new part polygon to a multipart feature.
Qgis::VectorEditResult deleteVertex(QgsFeatureId featureId, int vertex)
Deletes a vertex from a feature.
Qgis::GeometryOperationResult addRingV2(QgsCurve *ring, const QgsFeatureIds &targetFeatureIds=QgsFeatureIds(), QgsFeatureIds *modifiedFeatureIds=nullptr)
Adds a ring to polygon/multipolygon features.
int addTopologicalPoints(const QgsGeometry &geom)
Adds topological points for every vertex of the geometry.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitParts(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits parts cut by the given line.
Q_DECL_DEPRECATED Qgis::GeometryOperationResult splitFeatures(const QVector< QgsPointXY > &splitLine, bool topologicalEditing=false)
Splits features cut by the given line.
bool moveVertex(double x, double y, QgsFeatureId atFeatureId, int atVertex)
Moves the vertex at the given position number, ring and item (first number is index 0),...
Q_DECL_DEPRECATED Qgis::GeometryOperationResult addRing(const QVector< QgsPointXY > &ring, const QgsFeatureIds &targetFeatureIds=QgsFeatureIds(), QgsFeatureId *modifiedFeatureId=nullptr)
Adds a ring to polygon/multipolygon features.
Encapsulate geometry and attributes for new features, to be passed to createFeatures.
QList< QgsVectorLayerUtils::QgsFeatureData > QgsFeaturesDataList
Alias for list of QgsFeatureData.
static QgsFeature createFeature(const QgsVectorLayer *layer, const QgsGeometry &geometry=QgsGeometry(), const QgsAttributeMap &attributes=QgsAttributeMap(), QgsExpressionContext *context=nullptr)
Creates a new feature ready for insertion into a layer.
static QgsFeatureList createFeatures(const QgsVectorLayer *layer, const QgsFeaturesDataList &featuresData, QgsExpressionContext *context=nullptr)
Creates a set of new features ready for insertion into a layer.
Represents a vector layer which manages a vector based data sets.
bool isSpatial() const FINAL
Returns true if this is a geometry layer and false in case of NoGeometry (table only) or UnknownGeome...
QgsFeatureIterator getFeatures(const QgsFeatureRequest &request=QgsFeatureRequest()) const FINAL
Queries the layer for features specified in request.
bool addFeatures(QgsFeatureList &features, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) FINAL
Adds a list of features to the sink.
Q_INVOKABLE bool deleteFeature(QgsFeatureId fid, QgsVectorLayer::DeleteContext *context=nullptr)
Deletes a feature from the layer (but does not commit it).
int selectedFeatureCount() const
Returns the number of features that are selected in this layer.
void endEditCommand()
Finish edit command and add it to undo/redo stack.
Q_INVOKABLE const QgsFeatureIds & selectedFeatureIds() const
Returns a list of the selected features IDs in this layer.
QgsGeometryOptions * geometryOptions() const
Configuration and logic to apply automatically on any edit happening on this layer.
Q_INVOKABLE Qgis::WkbType wkbType() const FINAL
Returns the WKBType or WKBUnknown in case of error.
Q_INVOKABLE QgsVectorLayerEditBuffer * editBuffer()
Buffer with uncommitted editing operations. Only valid after editing has been turned on.
QgsFeatureIterator getSelectedFeatures(QgsFeatureRequest request=QgsFeatureRequest()) const
Returns an iterator of the selected features.
QgsVectorDataProvider * dataProvider() FINAL
Returns the layer's data provider, it may be nullptr.
bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags()) FINAL
Adds a single feature to the sink.
void beginEditCommand(const QString &text)
Create edit command for undo/redo operations.
Q_INVOKABLE bool changeAttributeValues(QgsFeatureId fid, const QgsAttributeMap &newValues, const QgsAttributeMap &oldValues=QgsAttributeMap(), bool skipDefaultValues=false, QgsVectorLayerToolsContext *context=nullptr)
Changes attributes' values for a feature (but does not immediately commit the changes).
bool changeGeometry(QgsFeatureId fid, QgsGeometry &geometry, bool skipDefaultValue=false)
Changes a feature's geometry within the layer's edit buffer (but does not immediately commit the chan...
static bool hasZ(Qgis::WkbType type)
Tests whether a WKB type contains the z-dimension.
static bool hasM(Qgis::WkbType type)
Tests whether a WKB type contains m values.
static bool isSingleType(Qgis::WkbType type)
Returns true if the WKB type is a single type.
bool qgsDoubleNear(double a, double b, double epsilon=4 *std::numeric_limits< double >::epsilon())
Compare two doubles (but allow some difference)
QVector< QgsPoint > QgsPointSequence
QMap< int, QVariant > QgsAttributeMap
QList< QgsFeature > QgsFeatureList
QSet< QgsFeatureId > QgsFeatureIds
qint64 QgsFeatureId
64 bit feature ids negative numbers are used for uncommitted/newly added features