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50f01a2ac8
- removes storage of bounding box from QgsPointV2 (gives significant decrease in size of object) - more efficient calculation of bounding box for linestrings Additionally, this commit moves the bounding box invalidation to a virtual QgsAbstractGeometryV2::clearCache() method, so that other non-bounding box caches can also be cleared when the geometry is modified.
118 lines
3.5 KiB
Plaintext
118 lines
3.5 KiB
Plaintext
class QgsCircularStringV2: public QgsCurveV2
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{
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%TypeHeaderCode
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#include <qgscircularstringv2.h>
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%End
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public:
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QgsCircularStringV2();
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~QgsCircularStringV2();
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virtual bool operator==( const QgsCurveV2& other ) const;
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virtual bool operator!=( const QgsCurveV2& other ) const;
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virtual QString geometryType() const;
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virtual int dimension() const;
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virtual QgsCircularStringV2* clone() const;
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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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int wkbSize() const;
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unsigned char* asWkb( int& binarySize ) const;
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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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int numPoints() const;
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/** Returns the point at index i within the circular string.
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*/
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QgsPointV2 pointN( int i ) const;
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/**
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* @copydoc QgsCurveV2::points()
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*/
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void points( QList<QgsPointV2>& pts ) const;
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/** Sets the circular string's points
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*/
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void setPoints( const QList<QgsPointV2>& points );
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/**
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* @copydoc QgsAbstractGeometryV2::length()
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*/
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virtual double length() const;
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/**
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* @copydoc QgsCurveV2::startPoint()
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*/
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virtual QgsPointV2 startPoint() const;
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/**
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* @copydoc QgsCurveV2::endPoint()
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*/
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virtual QgsPointV2 endPoint() const;
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/**
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* @copydoc QgsCurveV2::curveToLine()
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*/
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virtual QgsLineStringV2* curveToLine() const;
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void draw( QPainter& p ) const;
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/** Transforms the geometry using a coordinate transform
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* @param ct coordinate transform
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* @param d transformation direction
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*/
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void transform( const QgsCoordinateTransform& ct, QgsCoordinateTransform::TransformDirection d = QgsCoordinateTransform::ForwardTransform );
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void transform( const QTransform& t );
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void addToPainterPath( QPainterPath& path ) const;
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/**
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* @copydoc QgsCurveV2::drawAsPolygon()
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*/
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void drawAsPolygon( QPainter& p ) const;
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virtual bool insertVertex( QgsVertexId position, const QgsPointV2& vertex );
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virtual bool moveVertex( QgsVertexId position, const QgsPointV2& newPos );
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virtual bool deleteVertex( QgsVertexId position );
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double closestSegment( const QgsPointV2& pt, QgsPointV2& segmentPt, QgsVertexId& vertexAfter, bool* leftOf, double epsilon ) const;
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/**
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* @copydoc QgsCurveV2::pointAt()
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*/
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bool pointAt( int i, QgsPointV2& vertex, QgsVertexId::VertexType& type ) const;
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/**
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* @copydoc QgsCurveV2::sumUpArea()
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*/
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void sumUpArea( double& sum ) const;
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/**
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* @copydoc QgsAbstractGeometryV2::hasCurvedSegments()
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*/
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bool hasCurvedSegments() const;
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/** Returns approximate rotation angle for a vertex. Usually average angle between adjacent segments.
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@param vertex the vertex id
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@return rotation in radians, clockwise from north*/
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double vertexAngle( QgsVertexId vertex ) const;
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virtual QgsCircularStringV2* 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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protected:
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virtual QgsRectangle calculateBoundingBox() const;
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private:
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//helper methods for curveToLine
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void segmentize( const QgsPointV2& p1, const QgsPointV2& p2, const QgsPointV2& p3, QList<QgsPointV2>& points ) const;
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};
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