Constructor Detail

• VoronoiDiagramBuilder

  public VoronoiDiagramBuilder()

  Creates a new Voronoi diagram builder.

Method Detail

• setSites

  public void setSites(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.

• setSites

  public void setSites(Collection coords)

  Sets the sites (point or vertices) which will be diagrammed from a collection of Coordinates.

  Parameters:

  coords - a collection of Coordinates.

• setClipEnvelope

  public void setClipEnvelope(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.

• setTolerance

  public void 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

• getSubdivision

  public QuadEdgeSubdivision getSubdivision()

  Gets the QuadEdgeSubdivision which models the computed diagram.

  Returns:

  the subdivision containing the triangulation

• getDiagram

  public Geometry getDiagram(GeometryFactory geomFact)

  Gets the faces of the computed diagram as a GeometryCollection of Polygons, clipped as specified.

  The userData attribute of each face Polygon is set to the Coordinate of the corresponding input site. This allows using a Map to link faces to data associated with sites.

  Parameters:

  geomFact - the geometry factory to use to create the output

  Returns:

  a GeometryCollection containg the face Polgyons of the diagram