code: public final void renderEdges(int fillMode) {
  		evenOdd_ = fillMode == EVEN_ODD;
  		for (int line = minY_; line <= maxY_; line++) {
  			advanceAET_();
  			addNewEdgesToAET_(line);
  			emitScans_();
  		}
  		
  		startAddingEdges();//reset for new edges
  	}
docs: Renders all edges added so far, and removes them.
  Calls startAddingEdges after it's done.
  @param fillMode Fill mode for the polygon fill can be one of two values: EVEN_ODD or WINDING.
  
  Note, as any other graphics algorithm, the scan line rasterizer doesn't require polygons
  to be topologically simple, or have correct ring orientation.