Closing a LineString -------------------- There are several occasions where you will need to take a LineString and close it (so the start and end points are exactly the same. This step is needed to create a LinearRing used as the outer boundary of a user supplied Polygon.:: CoordinateList list = new CoordinateList( lineString.getCoordinates() ); list.closeRing(); LinearRing ring = factory.createLinearRing( list.toCoordinateArray() ); **Copy Coordinates** You will see a lot of code that opts to just copy coordinate sequence and duplicate the initial point.:: LinearRing ring = null; if( lineString.isClosed() ) ring = factory.createLinearRing( splitter.getCoordinateSequence() ); else { CoordinateSequence sequence = lineString.getCoordinateSequence(); Coordinate array[] = new Coordinate[ sequence.size() + 1 ]; for( int i=0; i