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108 lines
4.5 KiB
C++
108 lines
4.5 KiB
C++
/***************************************************************************
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qgsgeometrycollectionv2.h
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-------------------------------------------------------------------
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Date : 28 Oct 2014
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Copyright : (C) 2014 by Marco Hugentobler
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email : marco.hugentobler at sourcepole dot com
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSGEOMETRYCOLLECTIONV2_H
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#define QGSGEOMETRYCOLLECTIONV2_H
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#include "qgsabstractgeometryv2.h"
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#include <QVector>
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/**\ingroup core
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* \class QgsGeometryCollectionV2
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* \brief Geometry collection
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* \note added in QGIS 2.10
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*/
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class CORE_EXPORT QgsGeometryCollectionV2: public QgsAbstractGeometryV2
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{
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public:
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QgsGeometryCollectionV2();
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QgsGeometryCollectionV2( const QgsGeometryCollectionV2& c );
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QgsGeometryCollectionV2& operator=( const QgsGeometryCollectionV2& c );
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virtual ~QgsGeometryCollectionV2();
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virtual QgsAbstractGeometryV2* clone() const override;
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/** Returns the number of geometries within the collection.
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*/
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int numGeometries() const;
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/** Returns a const reference to a geometry from within the collection.
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* @param n index of geometry to return
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*/
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const QgsAbstractGeometryV2* geometryN( int n ) const;
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/** Returns a geometry from within the collection.
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* @param n index of geometry to return
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*/
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QgsAbstractGeometryV2* geometryN( int n );
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//methods inherited from QgsAbstractGeometry
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virtual int dimension() const override;
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virtual QString geometryType() const override { return "GeometryCollection"; }
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virtual void clear() override;
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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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/** Removes a geometry from the collection.
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* @param nr index of geometry to remove
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* @returns true if removal was successful.
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*/
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virtual bool removeGeometry( int nr );
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virtual void transform( const QgsCoordinateTransform& ct ) override;
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void transform( const QTransform& t ) override;
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virtual void clip( const QgsRectangle& rect ) override;
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virtual void draw( QPainter& p ) const override;
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bool fromWkb( const unsigned char * wkb ) override;
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virtual bool fromWkt( const QString& wkt ) override;
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int wkbSize() const override;
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unsigned char* asWkb( int& binarySize ) const override;
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QString asWkt( int precision = 17 ) const override;
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QDomElement asGML2( QDomDocument& doc, int precision = 17, const QString& ns = "gml" ) const override;
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QDomElement asGML3( QDomDocument& doc, int precision = 17, const QString& ns = "gml" ) const override;
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QString asJSON( int precision = 17 ) const override;
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virtual QgsRectangle calculateBoundingBox() const override;
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virtual void coordinateSequence( QList< QList< QList< QgsPointV2 > > >& coord ) const override;
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virtual double closestSegment( const QgsPointV2& pt, QgsPointV2& segmentPt, QgsVertexId& vertexAfter, bool* leftOf, double epsilon ) const override;
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bool nextVertex( QgsVertexId& id, QgsPointV2& vertex ) const override;
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//low-level editing
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virtual bool insertVertex( const QgsVertexId& position, const QgsPointV2& vertex ) override;
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virtual bool moveVertex( const QgsVertexId& position, const QgsPointV2& newPos ) override;
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virtual bool deleteVertex( const QgsVertexId& position ) override;
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virtual double length() const override;
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virtual double area() const override;
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bool hasCurvedSegments() const override;
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/**Returns a geometry without curves. Caller takes ownership*/
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QgsAbstractGeometryV2* segmentize() const override;
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protected:
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QVector< QgsAbstractGeometryV2* > mGeometries;
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/** Reads a collection from a WKT string.
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*/
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bool fromCollectionWkt( const QString &wkt, const QList<QgsAbstractGeometryV2*>& subtypes, const QString& defaultChildWkbType = QString() );
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};
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#endif // QGSGEOMETRYCOLLECTIONV2_H
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