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fb3d07f3f5
Adds a new geometry class for Triangle geometries Methods include orthocenter, bisectors, medians, medial, circumscribed (center, radius), inscribed (center, radius) Also adds make_triangle expression function for creating triangles
64 lines
2.7 KiB
Plaintext
64 lines
2.7 KiB
Plaintext
class QgsTriangle : public QgsPolygonV2
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{
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%TypeHeaderCode
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#include <qgstriangle.h>
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%End
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public:
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QgsTriangle();
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QgsTriangle( const QgsPointV2 &p1, const QgsPointV2 &p2, const QgsPointV2 &p3 );
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explicit QgsTriangle( const QgsPoint &p1, const QgsPoint &p2, const QgsPoint &p3 );
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explicit QgsTriangle( const QPointF p1, const QPointF p2, const QPointF p3 );
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// inherited: bool operator==( const QgsTriangle& other ) const;
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// inherited: bool operator!=( const QgsTriangle& other ) const;
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virtual QString geometryType() const;
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virtual QgsTriangle* clone() const /Factory/;
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void clear();
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virtual bool fromWkb( QgsConstWkbPtr& wkbPtr );
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bool fromWkt( const QString &wkt );
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// inherited: QString asWkt( int precision = 17 ) const;
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// inherited: QDomElement asGML2( QDomDocument& doc, int precision = 17, const QString& ns = "gml" ) const;
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// inherited: QDomElement asGML3( QDomDocument& doc, int precision = 17, const QString& ns = "gml" ) const;
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// inherited: QString asJSON( int precision = 17 ) const;
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QgsPolygonV2* surfaceToPolygon() const /Factory/;
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QgsAbstractGeometry* toCurveType() const /Factory/;
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//overridden to handle LineString25D rings
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virtual void setExteriorRing( QgsCurve* ring /Transfer/ );
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virtual QgsAbstractGeometry* boundary() const /Factory/;
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// inherited: double pointDistanceToBoundary( double x, double y ) const;
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QgsPointV2 vertexAt( int atVertex ) const;
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void addInteriorRing( QgsCurve* ring /Transfer/ ); // NOTE: no interior ring for triangle.
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bool deleteVertex( QgsVertexId position );
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bool insertVertex( QgsVertexId position, const QgsPointV2 &vertex );
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bool moveVertex( QgsVertexId vId, const QgsPointV2& newPos );
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QVector<double> lengths() const;
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QVector<double> angles() const;
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bool isIsocele( double lengthTolerance = 0.0001 ) const;
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bool isEquilateral( double lengthTolerance = 0.0001 ) const;
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bool isRight( double angleTolerance = 0.0001 ) const;
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bool isScalene( double lengthTolerance = 0.0001 ) const;
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QVector<QgsLineString> altitudes( ) const;
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QVector<QgsLineString> medians( ) const;
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QVector<QgsLineString> bisectors( double lengthTolerance = 0.0001 ) const;
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QgsTriangle medial( ) const;
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QgsPointV2 orthocenter( double lengthTolerance = 0.0001 ) const;
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QgsPointV2 circumscribedCenter( ) const;
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double circumscribedRadius( ) const;
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// TODO:
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// QgsCircle circumscribedCircle ( ) const; // need QgsCircle (from CADDigitize.CADCircle)
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QgsPointV2 inscribedCenter( ) const;
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double inscribedRadius( ) const;
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// TODO:
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// QgsCircle inscribedCircle ( ) const; // need QgsCircle (from CADDigitize.CADCircle)
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};
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