23QString QgsBoundaryAlgorithm::name()
const
25 return QStringLiteral(
"boundary" );
28QString QgsBoundaryAlgorithm::displayName()
const
30 return QObject::tr(
"Boundary" );
33QStringList QgsBoundaryAlgorithm::tags()
const
35 return QObject::tr(
"boundary,ring,border,exterior" ).split(
',' );
38QString QgsBoundaryAlgorithm::group()
const
40 return QObject::tr(
"Vector geometry" );
43QString QgsBoundaryAlgorithm::groupId()
const
45 return QStringLiteral(
"vectorgeometry" );
48QString QgsBoundaryAlgorithm::outputName()
const
50 return QObject::tr(
"Boundary" );
53QString QgsBoundaryAlgorithm::shortHelpString()
const
55 return QObject::tr(
"Returns the closure of the combinatorial boundary of the input geometries (ie the "
56 "topological boundary of the geometry). For instance, a polygon geometry will have a "
57 "boundary consisting of the linestrings for each ring in the polygon. Only valid for "
58 "polygon or line layers." );
61QList<int> QgsBoundaryAlgorithm::inputLayerTypes()
const
66bool QgsBoundaryAlgorithm::supportInPlaceEdit(
const QgsMapLayer * )
const
71QgsBoundaryAlgorithm *QgsBoundaryAlgorithm::createInstance()
const
73 return new QgsBoundaryAlgorithm();
117 if ( outputGeometry.
isNull() )
119 feedback->
reportError( QObject::tr(
"No boundary for feature %1 (possibly a closed linestring?)" ).arg( feature.
id() ) );
@ VectorPolygon
Vector polygon layers.
@ VectorLine
Vector line layers.
@ SkipGeometryValidityChecks
Invalid geometry checks should always be skipped. This flag can be useful for algorithms which always...
WkbType
The WKB type describes the number of dimensions a geometry has.
@ MultiLineString
MultiLineString.
QFlags< ProcessingFeatureSourceFlag > ProcessingFeatureSourceFlags
Flags which control how QgsProcessingFeatureSource fetches features.
virtual QgsAbstractGeometry * boundary() const =0
Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the...
The feature class encapsulates a single feature including its unique ID, geometry and a list of field...
void clearGeometry()
Removes any geometry associated with the feature.
bool hasGeometry() const
Returns true if the feature has an associated geometry.
void setGeometry(const QgsGeometry &geometry)
Set the feature's geometry.
A geometry is the spatial representation of a feature.
const QgsAbstractGeometry * constGet() const
Returns a non-modifiable (const) reference to the underlying abstract geometry primitive.
Base class for all map layer types.
Contains information about the context in which a processing algorithm is executed.
Base class for providing feedback from a processing algorithm.
virtual void reportError(const QString &error, bool fatalError=false)
Reports that the algorithm encountered an error while executing.
static Qgis::GeometryType geometryType(Qgis::WkbType type)
Returns the geometry type for a WKB type, e.g., both MultiPolygon and CurvePolygon would have a Polyg...
static Qgis::WkbType addM(Qgis::WkbType type)
Adds the m dimension to a WKB type and returns the new type.
static Qgis::WkbType addZ(Qgis::WkbType type)
Adds the z dimension to a WKB type and returns the new type.
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.
QList< QgsFeature > QgsFeatureList