private LineString undo(LineString lineString) {
RemoveCoordinateOperation op = new RemoveCoordinateOperation(lineString.getNumPoints());
return (LineString) op.execute(lineString);
}
private LineString execute(LineString lineString) {
InsertCoordinateOperation op =
new InsertCoordinateOperation(lineString.getNumPoints(), coordinate);
return (LineString) op.execute(lineString);
}