private static void addEdge(Coordinate[] coords, boolean isForward, CoordinateList coordList) {
if (isForward) {
for (int i = 0; i < coords.length; i++) {
coordList.add(coords[i], false);
}
} else {
for (int i = coords.length - 1; i >= 0; i--) {
coordList.add(coords[i], false);
}
}
}
/**
* Computes the list of coordinates which are contained in this ring. The coordinatea are computed
* once only and cached.
*
* @return an array of the {@link Coordinate}s in this ring
*/
private Coordinate[] getCoordinates() {
if (ringPts == null) {
CoordinateList coordList = new CoordinateList();
for (Iterator i = deList.iterator(); i.hasNext(); ) {
DirectedEdge de = (DirectedEdge) i.next();
PolygonizeEdge edge = (PolygonizeEdge) de.getEdge();
addEdge(edge.getLine().getCoordinates(), de.getEdgeDirection(), coordList);
}
ringPts = coordList.toCoordinateArray();
}
return ringPts;
}