algorithm2dscale
How to scale a shape made of points?
Say I have a shape like this:
And I want to scale it down to this:
How do I calculate the location of the points (red circles) to do so?
Solution
new.x = scale * (old.x - center.x) + center.x
new.y = scale * (old.y - center.y) + center.y
Repeat for each point.
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