A utility class which creates Voronoi Diagrams from collections of points.
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#include <VoronoiDiagramBuilder.h>
A utility class which creates Voronoi Diagrams from collections of points.
The diagram is returned as a geom::GeometryCollection of geom::Polygon
s, clipped to the larger of a supplied envelope or to an envelope determined by the input sites.
- Author
- Martin Davis
◆ getDiagram()
Gets the faces of the computed diagram as a geom::GeometryCollection
of geom::Polygon
s, clipped as specified.
- Parameters
-
geomFact | the geometry factory to use to create the output |
- Returns
- the faces of the diagram
◆ getDiagramEdges()
Gets the edges of the computed diagram as a geom::MultiLineString
, clipped as specified.
- Parameters
-
geomFact | the geometry factory to use to create the output |
- Returns
- the edges of the diagram
◆ getSubdivision()
◆ setClipEnvelope()
void geos::triangulate::VoronoiDiagramBuilder::setClipEnvelope |
( |
const geom::Envelope * |
clipEnv | ) |
|
Sets the envelope to clip the diagram to.
The diagram will be clipped to the larger of this envelope or an envelope surrounding the sites.
- Parameters
-
clipEnv | the clip envelope; must be kept alive by caller until done with this instance; set to 0 for no clipping. |
◆ setOrdered()
void geos::triangulate::VoronoiDiagramBuilder::setOrdered |
( |
bool |
isOrdered | ) |
|
Specify whether the geometries in the generated diagram should reflect the order of coordinates in the input. If the generated diagram cannot be consistent with the input coordinate order (e.g., for repeated input points that become a single cell) an exception will be thrown.
- Parameters
-
isOrdered | should the geometries reflect the input order? |
◆ setSites() [1/2]
Sets the sites (point or vertices) which will be diagrammed from a collection of geom::Coordinate
s.
- Parameters
-
coords | a collection of Coordinates. |
◆ setSites() [2/2]
void geos::triangulate::VoronoiDiagramBuilder::setSites |
( |
const geom::Geometry & |
geom | ) |
|
Sets the sites (point or vertices) which will be diagrammed. All vertices of the given geometry will be used as sites.
- Parameters
-
geom | the geometry from which the sites will be extracted. |
◆ setTolerance()
void geos::triangulate::VoronoiDiagramBuilder::setTolerance |
( |
double |
tolerance | ) |
|
Sets the snapping tolerance which will be used to improved the robustness of the triangulation computation.
A tolerance of 0.0 specifies that no snapping will take place.
- Parameters
-
tolerance | the tolerance distance to use |
The documentation for this class was generated from the following file: