Computes the factor for the change in depth when moving from one location to another. E.g. if crossing from the INTERIOR to the EXTERIOR the depth decreases, so the factor is -1

public Edge getEdge()

public void setInResult(boolean isInResult)

public boolean isInResult()

public boolean isVisited()

public void setVisited(boolean isVisited)

public void setEdgeRing(EdgeRing edgeRing)

public EdgeRing getEdgeRing()

public void setMinEdgeRing(EdgeRing minEdgeRing)

public EdgeRing getMinEdgeRing()

public int getDepth(int position)

public void setDepth(int position, int depthVal)

public int getDepthDelta()

public void setVisitedEdge(boolean isVisited)

setVisitedEdge marks both DirectedEdges attached to a given Edge. This is used for edges corresponding to lines, which will only appear oriented in a single direction in the result.

public DirectedEdge getSym()

Each Edge gives rise to a pair of symmetric DirectedEdges, in opposite directions.

Returns:: the DirectedEdge for the same Edge but in the opposite direction

public boolean isForward()

public void setSym(DirectedEdge de)

public DirectedEdge getNext()

public void setNext(DirectedEdge next)

public DirectedEdge getNextMin()

public void setNextMin(DirectedEdge nextMin)

public boolean isLineEdge()

This edge is a line edge if

at least one of the labels is a line label
any labels which are not line labels have all Locations = EXTERIOR

public boolean isInteriorAreaEdge()

This is an interior Area edge if

its label is an Area label for both Geometries
and for each Geometry both sides are in the interior.

Returns:: true if this is an interior Area edge

public void setEdgeDepths(int position, int depth)

Set both edge depths. One depth for a given side is provided. The other is computed depending on the Location transition and the depthDelta of the edge.

public void print(PrintStream out)

public void printEdge(PrintStream out)