Class ConstraintVertex

Hierarchy: Object , Vertex, ConstraintVertex

public class ConstraintVertex
extends Vertex

A vertex in a Constrained Delaunay Triangulation. The vertex may or may not lie on a constraint. If it does it may carry extra information about the original constraint.

Authors:: Martin Davis

public ConstraintVertex(Coordinate p)

Creates a new constraint vertex

Parameters:: p - p the location of the vertex

public void setOnConstraint(boolean isOnConstraint)

Sets whether this vertex lies on a constraint.

Parameters:: isOnConstraint - isOnConstraint true if this vertex lies on a constraint

public boolean isOnConstraint()

Tests whether this vertex lies on a constraint.

Returns:: true if the vertex lies on a constraint

public void setConstraint(Object constraint)

Sets the external constraint information

Parameters:: constraint - constraint an object which carries information about the constraint this vertex lies on

public Object getConstraint()

Gets the external constraint object

Returns:: the external constraint object

protected void merge(ConstraintVertex other)

Merges the constraint data in the vertex other into this vertex. This method is called when an inserted vertex is very close to an existing vertex in the triangulation.

Parameters:: other - other the constraint vertex to merge