Hi,

The story so far:
-I looked for this, and Google turned up some stuff which I didn't
understand.
-It seemed to provide code to rotate a point about another, which I already
know how to do.
-pygame.transform.rotate() rotates the image about its center, returning a
larger or smaller surface.
-What I need is to rotate the surface about another point.
-I'm guessing this is impossible with pygame.transform.rotate(), and anyway,
this causes more complications.  So, since the rotated surface will be
blitted somewhere, the image will appear to rotate around a point if the
blitting point moves correctly.  Specifically, I would like to move the
blitting point to a location such that, for any rotation, the image appears
to rotate around its bottom edge.
-How can one do that?

Thanks,
Ian

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