16 #ifndef QGSGEOMETRYCOLLECTIONV2_H
17 #define QGSGEOMETRYCOLLECTIONV2_H
40 int numGeometries()
const;
55 virtual void clear()
override;
64 virtual bool removeGeometry(
int nr );
73 bool fromWkb(
const unsigned char * wkb )
override;
76 unsigned char*
asWkb(
int& binarySize )
const override;
93 virtual double length()
const override;
94 virtual double area()
const override;
110 #endif // QGSGEOMETRYCOLLECTIONV2_H
A rectangle specified with double values.
virtual QgsAbstractGeometryV2 & operator=(const QgsAbstractGeometryV2 &geom)
virtual bool moveVertex(const QgsVertexId &position, const QgsPointV2 &newPos)=0
Moves a vertex within the geometry.
virtual double length() const
Returns the length (or perimeter for area geometries) of the geometry.
virtual QString asJSON(int precision=17) const =0
Returns a GeoJSON representation of the geometry.
Abstract base class for all geometries.
virtual int wkbSize() const =0
Returns the size of the WKB representation of the geometry.
virtual bool insertVertex(const QgsVertexId &position, const QgsPointV2 &vertex)=0
Inserts a vertex into the geometry.
virtual void clear()=0
Clears the geometry, ie reset it to a null geometry.
Utility class for identifying a unique vertex within a geometry.
virtual QgsRectangle calculateBoundingBox() const
Calculates the minimal bounding box for the geometry.
virtual bool fromWkb(const unsigned char *wkb)=0
Sets the geometry from a WKB string.
virtual bool hasCurvedSegments() const
Returns true if the geometry contains curved segments.
virtual unsigned char * asWkb(int &binarySize) const =0
Returns a WKB representation of the geometry.
virtual QDomElement asGML3(QDomDocument &doc, int precision=17, const QString &ns="gml") const =0
Returns a GML3 representation of the geometry.
virtual bool nextVertex(QgsVertexId &id, QgsPointV2 &vertex) const =0
Returns next vertex id and coordinates.
virtual bool fromWkt(const QString &wkt)=0
Sets the geometry from a WKT string.
virtual QgsAbstractGeometryV2 * segmentize() const
Returns a version of the geometry without curves.
QVector< QgsAbstractGeometryV2 * > mGeometries
virtual bool deleteVertex(const QgsVertexId &position)=0
Deletes a vertex within the geometry.
virtual void transform(const QgsCoordinateTransform &ct)=0
Transforms the geometry using a coordinate transform.
virtual int dimension() const =0
Returns the inherent dimension of the geometry.
virtual double area() const
Returns the area of the geometry.
virtual void coordinateSequence(QList< QList< QList< QgsPointV2 > > > &coord) const =0
Retrieves the sequence of geometries, rings and nodes.
virtual QString asWkt(int precision=17) const =0
Returns a WKT representation of the geometry.
virtual QString geometryType() const override
Returns a unique string representing the geometry type.
virtual void draw(QPainter &p) const =0
Draws the geometry using the specified QPainter.
double ANALYSIS_EXPORT leftOf(Point3D *thepoint, Point3D *p1, Point3D *p2)
Returns whether 'thepoint' is left or right of the line from 'p1' to 'p2'.
virtual QDomElement asGML2(QDomDocument &doc, int precision=17, const QString &ns="gml") const =0
Returns a GML2 representation of the geometry.
virtual QgsAbstractGeometryV2 * clone() const =0
Clones the geometry by performing a deep copy.
virtual double closestSegment(const QgsPointV2 &pt, QgsPointV2 &segmentPt, QgsVertexId &vertexAfter, bool *leftOf, double epsilon) const =0
Searches for the closest segment of the geometry to a given point.