private void addLine(Coordinate[] pts) { SegmentString segStr = new BasicSegmentString(pts, null); List segChains = MonotoneChainBuilder.getChains(segStr.getCoordinates(), segStr); for (Iterator i = segChains.iterator(); i.hasNext(); ) { MonotoneChain mc = (MonotoneChain) i.next(); index.insert(mc.getEnvelope(), mc); } }
private void init(Geometry geom) { List lines = LinearComponentExtracter.getLines(geom); for (Iterator i = lines.iterator(); i.hasNext(); ) { LineString line = (LineString) i.next(); Coordinate[] pts = line.getCoordinates(); addLine(pts); } }
private void countSegs( RayCrossingCounter rcc, Envelope rayEnv, List monoChains, MCSegmentCounter mcSegCounter) { for (Iterator i = monoChains.iterator(); i.hasNext(); ) { MonotoneChain mc = (MonotoneChain) i.next(); mc.select(rayEnv, mcSegCounter); // short-circuit if possible if (rcc.isOnSegment()) return; } }