title: How to fill polygons with even-odd rule?
body: <p>I have n polygons. Each Polygon has n points, and some other properties like bounding box and etc. I can fill them separetly in some color , but i want to fill polygons with even-odd rule. <a href="https://i.stack.imgur.com/Yqc9r.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Yqc9r.png" alt="like this"></a>Which algorithms are there for this ? (may be vector based or raster based) </p>