How to draw polygons with Python?

Question

I have input values of x, y coordinates in the following format:

[[1,1], [2,1], [2,2], [1,2], [0.5,1.5]] 

I want to draw polygons, but I don't know how to draw them!

Thanks

Answer 1

Using matplotlib.pyplot

import matplotlib.pyplot as plt  coord = [[1,1], [2,1], [2,2], [1,2], [0.5,1.5]] coord.append(coord[0]) #repeat the first point to create a 'closed loop'  xs, ys = zip(*coord) #create lists of x and y values  plt.figure() plt.plot(xs,ys)  plt.show() # if you need... 

Answer 2

Another way to draw a polygon is this:

import PIL.ImageDraw as ImageDraw import PIL.Image as Image  image = Image.new("RGB", (640, 480))  draw = ImageDraw.Draw(image)  # points = ((1,1), (2,1), (2,2), (1,2), (0.5,1.5)) points = ((100, 100), (200, 100), (200, 200), (100, 200), (50, 150)) draw.polygon((points), fill=200)  image.show() 

Note that you need to install the pillow library. Also, I scaled up your coordinates by the factor of 100 so that we can see the polygon on the 640 x 480 screen.

Hope this helps.