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Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the geometry). For instance, a polygon geometry will have a boundary consisting of the linestrings for each ring in the polygon. Follows OGC / SQL/MM specs for boundary calculation
32 lines
1.2 KiB
Plaintext
32 lines
1.2 KiB
Plaintext
class QgsMultiCurveV2: public QgsGeometryCollectionV2
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{
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%TypeHeaderCode
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#include <qgsmulticurvev2.h>
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%End
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public:
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virtual QString geometryType() const;
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virtual QgsMultiCurveV2* clone() const;
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bool fromWkt( const QString& wkt );
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// inherited: int wkbSize() const;
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// inherited: unsigned char* asWkb( int& binarySize ) const;
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// inherited: QString asWkt( int precision = 17 ) const;
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QDomElement asGML2( QDomDocument& doc, int precision = 17, const QString& ns = "gml" ) const;
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QDomElement asGML3( QDomDocument& doc, int precision = 17, const QString& ns = "gml" ) const;
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QString asJSON( int precision = 17 ) const;
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/** Adds a geometry and takes ownership. Returns true in case of success*/
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virtual bool addGeometry( QgsAbstractGeometryV2* g );
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/** Returns a geometry without curves. Caller takes ownership*/
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QgsAbstractGeometryV2* segmentize() const /Factory/;
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/** Returns a copy of the multi curve, where each component curve has had its line direction reversed.
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* @note added in QGIS 2.14
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*/
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QgsMultiCurveV2* reversed() const /Factory/;
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virtual QgsAbstractGeometryV2* boundary() const /Factory/;
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};
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