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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.
182 lines
5.2 KiB
Plaintext
182 lines
5.2 KiB
Plaintext
/************************************************************************
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* This file has been generated automatically from *
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* *
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* src/core/geometry/qgscompoundcurve.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 QgsCompoundCurve: QgsCurve
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{
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%Docstring
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Compound curve geometry type
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.. versionadded:: 2.10
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%End
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%TypeHeaderCode
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#include "qgscompoundcurve.h"
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%End
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public:
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QgsCompoundCurve();
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QgsCompoundCurve( const QgsCompoundCurve &curve );
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~QgsCompoundCurve();
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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 QgsCompoundCurve *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 double length() const;
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virtual QgsPoint startPoint() const;
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virtual QgsPoint endPoint() const;
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virtual void points( QgsPointSequence &pts /Out/ ) const;
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virtual int numPoints() const;
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virtual bool isEmpty() const;
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virtual QgsLineString *curveToLine( double tolerance = M_PI_2 / 90, SegmentationToleranceType toleranceType = MaximumAngle ) const /Factory/;
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%Docstring
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Returns a new line string geometry corresponding to a segmentized approximation
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of the curve.
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\param tolerance segmentation tolerance
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\param toleranceType maximum segmentation angle or maximum difference between approximation and curve*
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:rtype: QgsLineString
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%End
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virtual QgsCompoundCurve *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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int nCurves() const;
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%Docstring
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Returns the number of curves in the geometry.
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:rtype: int
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%End
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const QgsCurve *curveAt( int i ) const;
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%Docstring
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Returns the curve at the specified index.
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:rtype: QgsCurve
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%End
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void addCurve( QgsCurve *c /Transfer/ );
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%Docstring
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Adds a curve to the geometry (takes ownership)
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%End
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void removeCurve( int i );
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%Docstring
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Removes a curve from the geometry.
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\param i index of curve to remove
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%End
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void addVertex( const QgsPoint &pt );
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%Docstring
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Adds a vertex to the end of the geometry.
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%End
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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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void close();
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%Docstring
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Appends first point if not already closed.
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%End
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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 QgsCompoundCurve *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 QgsRectangle calculateBoundingBox() const;
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virtual QgsCompoundCurve *createEmptyWithSameType() const /Factory/;
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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/qgscompoundcurve.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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