18 #ifndef QGSLINESTRINGV2_H 19 #define QGSLINESTRINGV2_H 55 double xAt(
int index )
const;
62 double yAt(
int index )
const;
70 double zAt(
int index )
const;
78 double mAt(
int index )
const;
86 void setXAt(
int index,
double x );
94 void setYAt(
int index,
double y );
102 void setZAt(
int index,
double z );
110 void setMAt(
int index,
double m );
140 virtual void clear()
override;
146 unsigned char*
asWkb(
int& binarySize )
const override;
153 virtual double length()
const override;
180 void sumUpArea(
double& sum )
const override;
183 virtual bool addZValue(
double zValue = 0 )
override;
184 virtual bool addMValue(
double mValue = 0 )
override;
213 #endif // QGSLINESTRINGV2_H
A rectangle specified with double values.
virtual bool dropMValue()=0
Drops any measure values which exist in the geometry.
virtual bool operator==(const QgsCurveV2 &other) const =0
virtual QgsPointV2 centroid() const
Returns the centroid of the geometry.
virtual int dimension() const override
Returns the inherent dimension of the geometry.
virtual double length() const
Returns the length of the geometry.
virtual QString asJSON(int precision=17) const =0
Returns a GeoJSON representation of the geometry.
virtual void addToPainterPath(QPainterPath &path) const =0
Adds a curve to a painter path.
virtual bool dropZValue()=0
Drops any z-dimensions which exist in the geometry.
virtual QgsCurveV2 * clone() const override=0
Clones the geometry by performing a deep copy.
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 int numPoints() const =0
Returns the number of points in the curve.
virtual QgsCurveV2 * reversed() const =0
Returns a reversed copy of the curve, where the direction of the curve has been flipped.
Utility class for identifying a unique vertex within a geometry.
Line string geometry type, with support for z-dimension and m-values.
virtual QgsRectangle calculateBoundingBox() const
Default calculator for the minimal bounding box for the geometry.
virtual bool fromWkb(QgsConstWkbPtr wkb)=0
Sets the geometry from a WKB string.
Point geometry type, with support for z-dimension and m-values.
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 QString geometryType() const override
Returns a unique string representing the geometry type.
virtual QDomElement asGML3(QDomDocument &doc, int precision=17, const QString &ns="gml") const =0
Returns a GML3 representation of the geometry.
virtual bool fromWkt(const QString &wkt)=0
Sets the geometry from a WKT string.
virtual bool pointAt(int node, QgsPointV2 &point, QgsVertexId::VertexType &type) const =0
Returns the point and vertex id of a point within the curve.
virtual void sumUpArea(double &sum) const =0
Calculates the area of the curve.
virtual bool convertTo(QgsWKBTypes::Type type)
Converts the geometry to a specified type.
virtual double vertexAngle(QgsVertexId vertex) const =0
Returns approximate angle at a vertex.
virtual QgsLineStringV2 * curveToLine() const =0
Returns a new line string geometry corresponding to a segmentized approximation of the curve...
virtual QgsPointV2 endPoint() const =0
Returns the end point of the curve.
virtual bool deleteVertex(QgsVertexId position)=0
Deletes a vertex within the geometry.
virtual bool insertVertex(QgsVertexId position, const QgsPointV2 &vertex)=0
Inserts a vertex into the geometry.
virtual bool operator!=(const QgsCurveV2 &other) const =0
virtual QString asWkt(int precision=17) const =0
Returns a WKT representation of the geometry.
virtual QgsPointV2 startPoint() const =0
Returns the starting point of the curve.
virtual void draw(QPainter &p) const =0
Draws the geometry using the specified QPainter.
virtual void drawAsPolygon(QPainter &p) const =0
Draws the curve as a polygon on 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.
Abstract base class for curved geometry type.
virtual bool moveVertex(QgsVertexId position, const QgsPointV2 &newPos)=0
Moves a vertex within the geometry.
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 void points(QgsPointSequenceV2 &pt) const =0
Returns a list of points within the curve.