code: public void start(Geometry geometry) {
  		this.geometry = geometry;
  
  		splitLine = new Geometry(Geometry.LINE_STRING, 0, 0);
  		service.start(splitLine);
  		service.setEditingState(GeometryEditState.INSERTING);
  		service.setInsertIndex(service.getIndexService().create(GeometryIndexType.TYPE_VERTEX, 0));
  
  		started = true;
  		eventBus.fireEvent(new GeometrySplitStartEvent(geometry));
  	}
docs: Start splitting the given geometry.
  
  @param geometry
  to be split