21 #include "qgis_core.h" 48 virtual bool equals(
const QgsCurve &other )
const = 0;
59 virtual QgsPoint startPoint()
const = 0;
65 virtual QgsPoint endPoint()
const = 0;
70 virtual bool isClosed()
const;
75 virtual bool isRing()
const;
91 virtual void addToPainterPath( QPainterPath &path )
const = 0;
97 virtual void drawAsPolygon( QPainter &p )
const = 0;
107 virtual int numPoints()
const = 0;
112 virtual void sumUpArea(
double &sum SIP_OUT )
const = 0;
142 int vertexCount(
int part = 0,
int ring = 0 )
const override;
143 int ringCount(
int part = 0 )
const override;
156 virtual double xAt(
int index )
const = 0;
164 virtual double yAt(
int index )
const = 0;
169 QPolygonF asQPolygonF()
const;
188 return static_cast<const QgsCurve *
>( geom );
208 bool snapToGridPrivate(
double hSpacing,
double vSpacing,
double dSpacing,
double mSpacing,
209 const QVector<double> &srcX,
const QVector<double> &srcY,
const QVector<double> &srcZ,
const QVector<double> &srcM,
210 QVector<double> &outX, QVector<double> &outY, QVector<double> &outZ, QVector<double> &outM )
const;
218 #endif // QGSCURVEV2_H A rectangle specified with double values.
virtual int vertexNumberFromVertexId(QgsVertexId id) const =0
Returns the vertex number corresponding to a vertex id.
virtual int childCount() const
Returns number of child geometries (for geometries with child geometries) or child points (for geomet...
virtual QgsAbstractGeometry * toCurveType() const =0
Returns the geometry converted to the more generic curve type.
virtual QgsPoint childPoint(int index) const
Returns point at index (for geometries without child geometries - i.e.
QVector< QgsRingSequence > QgsCoordinateSequence
virtual bool operator==(const QgsAbstractGeometry &other) const =0
virtual QgsAbstractGeometry * boundary() const =0
Returns the closure of the combinatorial boundary of the geometry (ie the topological boundary of the...
SegmentationToleranceType
Segmentation tolerance as maximum angle or maximum difference between approximation and circle...
virtual bool nextVertex(QgsVertexId &id, QgsPoint &vertex) const =0
Returns next vertex id and coordinates.
virtual QgsRectangle boundingBox() const =0
Returns the minimal bounding box for the geometry.
virtual QgsAbstractGeometry * clone() const =0
Clones the geometry by performing a deep copy.
virtual bool operator!=(const QgsAbstractGeometry &other) const =0
Type
The WKB type describes the number of dimensions a geometry has.
virtual void clearCache() const
Clears any cached parameters associated with the geometry, e.g., bounding boxes.
Utility class for identifying a unique vertex within a geometry.
static GeometryType geometryType(Type type)
Returns the geometry type for a WKB type, e.g., both MultiPolygon and CurvePolygon would have a Polyg...
virtual int ringCount(int part=0) const =0
Returns the number of rings of which this geometry is built.
Abstract base class for curved geometry type.
Abstract base class for all geometries.
QgsWkbTypes::Type wkbType() const
Returns the WKB type of the geometry.
Point geometry type, with support for z-dimension and m-values.
static bool isSingleType(Type type)
Returns true if the WKB type is a single type.
QVector< QgsPoint > QgsPointSequence
virtual QgsCoordinateSequence coordinateSequence() const =0
Retrieves the sequence of geometries, rings and nodes.
virtual void adjacentVertices(QgsVertexId vertex, QgsVertexId &previousVertex, QgsVertexId &nextVertex) const =0
Returns the vertices adjacent to a specified vertex within a geometry.
Line string geometry type, with support for z-dimension and m-values.
virtual int vertexCount(int part=0, int ring=0) const =0
Returns the number of vertices of which this geometry is built.
const QgsCurve * cast(const QgsAbstractGeometry *geom) const
Cast the geom to a QgsCurve.
virtual QgsPoint vertexAt(QgsVertexId id) const =0
Returns the point corresponding to a specified vertex id.
virtual QgsAbstractGeometry * segmentize(double tolerance=M_PI/180., SegmentationToleranceType toleranceType=MaximumAngle) const
Returns a version of the geometry without curves.
virtual int partCount() const =0
Returns count of parts contained in the geometry.