Available under Creative Commons-NonCommercial-ShareAlike 4.0 International License.
The rectangle method takes a sequence of coordinates that specify opposite corners of the rectangle. This example draws a blue rectangle with the lower left corner at the origin and the upper right corner at (200, 100):
canvas.rectangle([[0, 0], [200, 100]],fill='blue', outline='orange', width=10)
This way of specifying corners is called a bounding box because the two points bound the rectangle.
oval takes a bounding box and draws an oval within the specified rectangle:
canvas.oval([[0, 0], [200, 100]], outline='orange', width=10)
line takes a sequence of coordinates and draws a line that connects the points. This example draws two legs of a triangle:
canvas.line([[0, 100], [100, 200], [200, 100]], width=10)
polygon takes the same arguments, but it draws the last leg of the polygon (if necessary) and fills it in:
canvas.polygon([[0, 100], [100, 200], [200, 100]],fill='red', outline='orange', width=10)
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