The GraphicsPathWinding class provides values for the
openfl.display.GraphicsPath.winding property and the
openfl.display.Graphics.drawPath() method to determine the
direction to draw a path. A clockwise path is positively wound, and a
counter-clockwise path is negatively wound:
When paths intersect or overlap, the winding direction determines the rules for filling the areas created by the intersection or overlap:
Establishes the even-odd winding type. The even-odd winding type is the rule
used by all of the original drawing API and is the default type for the
openfl.display.Graphics.drawPath() method. Any overlapping paths will
alternate between open and closed fills. If two squares drawn with the same
fill intersect, the area of the intersection is not filled. Adjacent areas are not
the same (neither both filled nor both unfilled).
Establishes the non-zero winding type. The non-zero winding type determines that when paths of opposite winding intersect, the intersection area is unfilled (as with the even-odd winding type). For paths of the same winding, the intersection area is filled.