### What did you do? I drew a filled quadrilateral. ### What did you expect to happen? The output would be a contiguous quadrilateral. ### What actually happened? The output was discontiguous. ### What are your OS, Python and Pillow versions? * OS: macOS 10.14.6 * Python: Python 3.7.4 (default, Jul 11 2019, 01:08:00) [Clang 10.0.1 (clang-1001.0.46.4)] on darwin * Pillow: 6.1.0 ```python3 from PIL import Image, ImageDraw img = Image.new("1", (128, 128)) coords = [(29.0, 74.0), (62.0, 57.0), (99.0, 54.0), (66.0, 71.0)] drawer = ImageDraw.Draw(img) drawer.polygon(coords,1,1) img.show() ``` <img width="332" alt="Screen Shot 2020-01-08 at 4 58 26 PM" src="https://user-images.githubusercontent.com/2703145/72019827-66a70280-3238-11ea-8f1b-8a209452e873.png">