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In this exercise, I have to draw a Chromaticity Diagram. First, I draw the layout (black), find the "highest" and "lowest" points. I have to determine whether a point is in the layout or not. But there's something wrong here, and I don't know why. Can you help me? Thanks alot! Imports...

Thank you, JohnH! I'll try it!

I have a problem with my project. I have to check whether the color of a point is Red or not. How can I get the color of a point? Is there a function to know the color of a point(x,y)? How to know the name of a color if I know (r, g, b)?