40 if ( change.vidx.vertex == mIntersection.
segment1 ||
41 change.vidx.vertex == mIntersection.
segment1 + 1 ||
42 change.vidx.vertex == mIntersection.
segment2 ||
43 change.vidx.vertex == mIntersection.
segment2 + 1 )
47 else if ( change.vidx.vertex >= 0 )
49 if ( change.vidx.vertex < mIntersection.
segment1 )
53 if ( change.vidx.vertex < mIntersection.
segment2 )
67 mIntersection.
point = err->mIntersection.
point;
95 bool ringIsClosed =
false;
107 bool intersection =
false;
123 bool ring1EndsWithS =
false;
124 bool ring2EndsWithS =
false;
125 for (
int i = 0; i < nVerts; ++i )
127 if ( i <= inter.segment1 || i >= inter.
segment2 + 1 )
130 ring1EndsWithS =
false;
134 ring2EndsWithS =
true;
140 ring2EndsWithS =
true;
144 ring1EndsWithS =
false;
151 ring2EndsWithS =
true;
153 if ( ringIsClosed || ring1EndsWithS )
154 ring1.append( ring1.front() );
155 if ( ringIsClosed || ring2EndsWithS )
156 ring2.append( ring2.front() );
158 if ( ring1.size() < 3 + ( ringIsClosed || ring1EndsWithS ) || ring2.size() < 3 + ( ringIsClosed || ring2EndsWithS ) )
160 error->
setFixFailed( tr(
"Resulting geometry is degenerate" ) );
163 std::unique_ptr< QgsLineString > ringGeom1 = std::make_unique< QgsLineString >();
164 ringGeom1->setPoints( ring1 );
165 std::unique_ptr< QgsLineString >ringGeom2 = std::make_unique< QgsLineString >();
166 ringGeom2->setPoints( ring2 );
170 if (
QgsCurvePolygon *poly = qgsgeometry_cast<QgsCurvePolygon *>( part ) )
175 poly->removeInteriorRing( vidx.
ring );
176 poly->addInteriorRing( ringGeom1.release() );
177 poly->addInteriorRing( ringGeom2.release() );
187 poly->setExteriorRing( ringGeom1.release() );
190 std::unique_ptr< QgsCurvePolygon > poly2 = qgsgeometry_cast<QgsPolygon *>( part ) ? std::make_unique< QgsPolygon> () : std::make_unique< QgsCurvePolygon >();
191 poly2->setExteriorRing( ringGeom2.release() );
196 for (
int n = poly->numInteriorRings(), i = n - 1; i >= 0; --i )
198 if ( !geomEnginePoly1->contains( poly->interiorRing( i ) ) )
200 if ( geomEnginePoly2->contains( poly->interiorRing( i ) ) )
202 poly2->addInteriorRing( qgsgeometry_cast<QgsCurve *>( poly->interiorRing( i )->clone() ) );
205 poly->removeInteriorRing( i );
215 collection->addGeometry( poly2.release() );
224 std::unique_ptr< QgsMultiPolygon > multiPoly = std::make_unique< QgsMultiPolygon >();
225 multiPoly->addGeometry( poly->clone() );
226 multiPoly->addGeometry( poly2.release() );
245 else if ( qgsgeometry_cast<QgsCurve *>( part ) )
251 geomCollection->removeGeometry( vidx.
part );
252 geomCollection->addGeometry( ringGeom1.release() );
253 geomCollection->addGeometry( ringGeom2.release() );
262 std::unique_ptr< QgsMultiCurve > multiCurve = std::make_unique< QgsMultiLineString >();
263 multiCurve->addGeometry( ringGeom1.release() );
264 multiCurve->addGeometry( ringGeom2.release() );
274 geomCollection->removeGeometry( vidx.
part );
275 geomCollection->addGeometry( ringGeom1.release() );
304 static const QStringList methods = QStringList()
305 << tr(
"Split feature into a multi-object feature" )
306 << tr(
"Split feature into multiple single-object features" )
307 << tr(
"No action" );
313 QList<QgsSingleGeometryCheckError *> errors;
315 for (
int iPart = 0, nParts = geom->
partCount(); iPart < nParts; ++iPart )
317 for (
int iRing = 0, nRings = geom->
ringCount( iPart ); iRing < nRings; ++iRing )
329QList<Qgis::GeometryType> QgsGeometrySelfIntersectionCheck::factoryCompatibleGeometryTypes()
334bool QgsGeometrySelfIntersectionCheck::factoryIsCompatible(
QgsVectorLayer *layer )
336 return factoryCompatibleGeometryTypes().contains( layer->
geometryType() );
339QString QgsGeometrySelfIntersectionCheck::factoryDescription()
341 return tr(
"Self intersection" );
349QString QgsGeometrySelfIntersectionCheck::factoryId()
351 return QStringLiteral(
"QgsGeometrySelfIntersectionCheck" );
Abstract base class for all geometries.
virtual int ringCount(int part=0) const =0
Returns the number of rings of which this geometry is built.
virtual QgsPoint vertexAt(QgsVertexId id) const =0
Returns the point corresponding to a specified vertex id.
virtual int partCount() const =0
Returns count of parts contained in the geometry.
Curve polygon geometry type.
A feature pool is based on a vector layer and caches features.
virtual void updateFeature(QgsFeature &feature)=0
Updates a feature in this pool.
bool getFeature(QgsFeatureId id, QgsFeature &feature)
Retrieves the feature with the specified id into feature.
virtual bool addFeature(QgsFeature &feature, QgsFeatureSink::Flags flags=QgsFeatureSink::Flags())
Adds a single feature to the sink.
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
void setAttributes(const QgsAttributes &attrs)
Sets the feature's attributes.
void setGeometry(const QgsGeometry &geometry)
Set the feature's geometry.
const double tolerance
The tolerance to allow for in geometry checks.
Wraps a QgsSingleGeometryError into a standard QgsGeometryCheckError.
QgsSingleGeometryCheckError * singleError() const
The underlying single error.
This represents an error reported by a geometry check.
const QgsVertexId & vidx() const
The id of the affected vertex.
QgsFeatureId featureId() const
The id of the feature on which this error has been detected.
void setFixed(int method)
Set the status to fixed and specify the method that has been used to fix the error.
void setFixFailed(const QString &reason)
Set the error status to failed and specify the reason for failure.
void setObsolete()
Set the error status to obsolete.
const QString & layerId() const
The id of the layer on which this error has been detected.
QMap< QString, QMap< QgsFeatureId, QList< QgsGeometryCheck::Change > > > Changes
A collection of changes.
const QgsGeometryCheckContext * mContext
@ ChangeRing
This change happens on ring level.
@ ChangeFeature
This change happens on feature level.
@ ChangePart
This change happens on part level.
CheckType
The type of a check.
@ FeatureNodeCheck
The check controls individual nodes.
@ ChangeChanged
Something has been updated.
@ ChangeAdded
Something has been added.
@ ChangeRemoved
Something has been removed.
static std::unique_ptr< QgsGeometryEngine > createGeomEngine(const QgsAbstractGeometry *geometry, double tolerance)
static QgsAbstractGeometry * getGeomPart(QgsAbstractGeometry *geom, int partIdx)
static int polyLineSize(const QgsAbstractGeometry *geom, int iPart, int iRing, bool *isClosed=nullptr)
Returns the number of points in a polyline, accounting for duplicate start and end point if the polyl...
A self intersection check error.
const QgsGeometryUtils::SelfIntersection & intersection() const
bool handleChanges(const QList< QgsGeometryCheck::Change > &changes) override
Apply a list of changes.
bool isEqual(const QgsSingleGeometryCheckError *other) const override
Check if this error is equal to other.
void update(const QgsSingleGeometryCheckError *other) override
Update this error with the information from other.
void fixError(const QMap< QString, QgsFeaturePool * > &featurePools, QgsGeometryCheckError *error, int method, const QMap< QString, int > &mergeAttributeIndices, Changes &changes) const override
Fixes the error error with the specified method.
QList< QgsSingleGeometryCheckError * > processGeometry(const QgsGeometry &geometry) const override
Check the geometry for errors.
Q_DECL_DEPRECATED QStringList resolutionMethods() const override
Returns a list of descriptions for available resolutions for errors.
static QVector< SelfIntersection > selfIntersections(const QgsAbstractGeometry *geom, int part, int ring, double tolerance)
Find self intersections in a polyline.
static bool segmentIntersection(const QgsPoint &p1, const QgsPoint &p2, const QgsPoint &q1, const QgsPoint &q2, QgsPoint &intersectionPoint, bool &isIntersection, double tolerance=1e-8, bool acceptImproperIntersection=false)
Compute the intersection between two segments.
A geometry is the spatial representation of a feature.
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.
Point geometry type, with support for z-dimension and m-values.
An error from a QgsSingleGeometryCheck.
virtual bool isEqual(const QgsSingleGeometryCheckError *other) const
Check if this error is equal to other.
virtual bool handleChanges(const QList< QgsGeometryCheck::Change > &changes)
Apply a list of changes.
virtual void update(const QgsSingleGeometryCheckError *other)
Update this error with the information from other.
Represents a vector layer which manages a vector based data sets.
Q_INVOKABLE Qgis::GeometryType geometryType() const
Returns point, line or polygon.
QVector< QgsPoint > QgsPointSequence
Descripts a change to fix a geometry.
Utility class for identifying a unique vertex within a geometry.
bool isValid() const
Returns true if the vertex id is valid.