40 void clear()
override;
42 double x()
const {
return mX; }
43 double y()
const {
return mY; }
44 double z()
const {
return mZ; }
45 double m()
const {
return mM; }
47 void setX(
double x ) { mX = x; }
48 void setY(
double y ) { mY = y; }
49 void setZ(
double z ) { mZ = z; }
50 void setM(
double m ) { mM = m; }
55 virtual int dimension()
const override {
return 0; }
58 virtual bool fromWkb(
const unsigned char* wkb )
override;
62 unsigned char*
asWkb(
int& binarySize )
const override;
94 virtual int vertexCount(
int = 0,
int = 0 )
const override {
return 1; }
95 virtual int ringCount(
int = 0 )
const override {
return 1; }
96 virtual int partCount()
const override {
return 1; }
99 virtual bool addZValue(
double zValue = 0 )
override;
100 virtual bool addMValue(
double mValue = 0 )
override;
109 #endif // QGSPOINTV2_H
A rectangle specified with double values.
virtual int ringCount(int=0) const override
bool operator==(const QgsFeatureIterator &fi1, const QgsFeatureIterator &fi2)
virtual bool moveVertex(const QgsVertexId &position, const QgsPointV2 &newPos)=0
Moves a vertex within the geometry.
bool operator!=(const QgsFeatureIterator &fi1, const QgsFeatureIterator &fi2)
virtual QgsPointV2 vertexAt(const QgsVertexId &) const override
Returns the point corresponding to a specified vertex id.
virtual QString asJSON(int precision=17) const =0
Returns a GeoJSON representation of the geometry.
virtual int dimension() const override
Returns the inherent dimension of the geometry.
Abstract base class for all geometries.
TransformDirection
Enum used to indicate the direction (forward or inverse) of the transform.
virtual int wkbSize() const =0
Returns the size of the WKB representation of the geometry.
virtual bool addMValue(double mValue=0)=0
Adds a measure to the geometry, initialized to a preset value.
virtual void clear()=0
Clears the geometry, ie reset it to a null geometry.
virtual QString geometryType() const override
Returns a unique string representing the geometry type.
Utility class for identifying a unique vertex within a geometry.
virtual bool fromWkb(const unsigned char *wkb)=0
Sets the geometry from a WKB string.
virtual unsigned char * asWkb(int &binarySize) const =0
Returns a WKB representation of the geometry.
virtual void transform(const QgsCoordinateTransform &ct, QgsCoordinateTransform::TransformDirection d=QgsCoordinateTransform::ForwardTransform)=0
Transforms the geometry using a coordinate transform.
virtual bool addZValue(double zValue=0)=0
Adds a z-dimension to the geometry, initialized to a preset value.
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.
A class to represent a point.
virtual bool insertVertex(const QgsVertexId &position, const QgsPointV2 &vertex) override
Inserts a vertex into the geometry.
virtual QgsRectangle calculateBoundingBox() const override
Calculates the minimal bounding box for 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 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.
virtual int vertexCount(int=0, int=0) const override
virtual bool deleteVertex(const QgsVertexId &position) override
Deletes a vertex within the geometry.
virtual int partCount() const override
double vertexAngle(const QgsVertexId &vertex) const override
Angle undefined.