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e12621ce2a
Removes duplicate nodes from the geometry, wherever removing the nodes does not result in a degenerate geometry. By default, z values are not considered when detecting duplicate nodes. E.g. two nodes with the same x and y coordinate but different z values will still be considered duplicate and one will be removed. If useZValues is true, then the z values are also tested and nodes with the same x and y but different z will be maintained. Note that duplicate nodes are not tested between different parts of a multipart geometry. E.g. a multipoint geometry with overlapping points will not be changed by this method. The function will return true if nodes were removed, or false if no duplicate nodes were found. Includes unit tests and a processing algorithm which exposes this functionality.
148 lines
4.5 KiB
Plaintext
148 lines
4.5 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/geometry/qgscircularstring.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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class QgsCircularString: QgsCurve
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{
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%Docstring
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Circular string geometry type
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.. versionadded:: 2.10
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%End
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%TypeHeaderCode
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#include "qgscircularstring.h"
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%End
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public:
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QgsCircularString();
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virtual bool operator==( const QgsCurve &other ) const;
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virtual bool operator!=( const QgsCurve &other ) const;
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virtual QString geometryType() const;
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virtual int dimension() const;
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virtual QgsCircularString *clone() const /Factory/;
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virtual void clear();
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virtual bool fromWkb( QgsConstWkbPtr &wkb );
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virtual bool fromWkt( const QString &wkt );
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virtual QByteArray asWkb() const;
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virtual QString asWkt( int precision = 17 ) const;
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virtual QDomElement asGml2( QDomDocument &doc, int precision = 17, const QString &ns = "gml" ) const;
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virtual QDomElement asGml3( QDomDocument &doc, int precision = 17, const QString &ns = "gml" ) const;
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virtual QString asJson( int precision = 17 ) const;
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virtual bool isEmpty() const;
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virtual int numPoints() const;
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QgsPoint pointN( int i ) const;
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%Docstring
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Returns the point at index i within the circular string.
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:rtype: QgsPoint
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%End
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virtual void points( QgsPointSequence &pts /Out/ ) const;
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void setPoints( const QgsPointSequence &points );
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%Docstring
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Sets the circular string's points
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%End
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virtual double length() const;
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virtual QgsPoint startPoint() const;
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virtual QgsPoint endPoint() const;
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virtual QgsLineString *curveToLine( double tolerance = M_PI_2 / 90, SegmentationToleranceType toleranceType = MaximumAngle ) const /Factory/;
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virtual QgsCircularString *snappedToGrid( double hSpacing, double vSpacing, double dSpacing = 0, double mSpacing = 0 ) const /Factory/;
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virtual bool removeDuplicateNodes( double epsilon = 4 * DBL_EPSILON, bool useZValues = false );
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virtual void draw( QPainter &p ) const;
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virtual void transform( const QgsCoordinateTransform &ct, QgsCoordinateTransform::TransformDirection d = QgsCoordinateTransform::ForwardTransform,
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bool transformZ = false );
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virtual void transform( const QTransform &t, double zTranslate = 0.0, double zScale = 1.0, double mTranslate = 0.0, double mScale = 1.0 );
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virtual void addToPainterPath( QPainterPath &path ) const;
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virtual void drawAsPolygon( QPainter &p ) const;
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virtual bool insertVertex( QgsVertexId position, const QgsPoint &vertex );
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virtual bool moveVertex( QgsVertexId position, const QgsPoint &newPos );
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virtual bool deleteVertex( QgsVertexId position );
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virtual double closestSegment( const QgsPoint &pt, QgsPoint &segmentPt /Out/, QgsVertexId &vertexAfter /Out/, int *leftOf /Out/ = 0, double epsilon = 4 * DBL_EPSILON ) const;
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virtual bool pointAt( int node, QgsPoint &point, QgsVertexId::VertexType &type ) const;
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virtual void sumUpArea( double &sum /Out/ ) const;
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virtual bool hasCurvedSegments() const;
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virtual double vertexAngle( QgsVertexId vertex ) const;
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virtual double segmentLength( QgsVertexId startVertex ) const;
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virtual QgsCircularString *reversed() const /Factory/;
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virtual bool addZValue( double zValue = 0 );
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virtual bool addMValue( double mValue = 0 );
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virtual bool dropZValue();
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virtual bool dropMValue();
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virtual double xAt( int index ) const;
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virtual double yAt( int index ) const;
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protected:
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virtual QgsCircularString *createEmptyWithSameType() const /Factory/;
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virtual QgsRectangle calculateBoundingBox() const;
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};
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/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/geometry/qgscircularstring.h *
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* *
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* Do not edit manually ! Edit header and run scripts/sipify.pl again *
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************************************************************************/
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