com.vividsolutions.jts.triangulate.quadedge
Interface TraversalVisitor
public interface TraversalVisitor
Interface for classes which process triangles visited during travesals of a
QuadEdgeSubdivision
- Author:
- Martin Davis
visit
boolean visit(QuadEdgeTriangle currTri,
int edgeIndex,
QuadEdgeTriangle neighbTri)
- Visits a triangle during a traversal of a
QuadEdgeSubdivision. An implementation of
this method may perform processing on the current triangle. It must also decide whether a
neighbouring triangle should be added to the queue so its neighbours are visited. Often it
will perform processing on the neighbour triangle as well, in order to mark it as processed
(visited) and/or to determine if it should be visited. Note that choosing not to
visit the neighbouring triangle is the terminating condition for many traversal algorithms.
In particular, if the neighbour triangle has already been visited, it should not be visited
again.
- Parameters:
currTri - the current triangle being processededgeIndex - the index of the edge in the current triangle being traversedneighbTri - a neighbouring triangle next in line to visit
- Returns:
- true if the neighbour triangle should be visited