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);
}
}
