Hi List,
Line 593 of pdp_imageproc_portable.c: /* affine x, y mappings in screen
coordinates */ double mapx(double _x, double _y){return cx + izx * ( c *
(_x-cx) + s * (_y-cy));} double mapy(double _x, double _y){return cy + izy *
(-s * (_x-cx) + c * (_y-cy));}
These lines are found _inside_ a function called
pdp_imageproc_resample_affinemap_process.
It's fun to focus on the substring "portable.c", and just read these lines a
few times. :)
-Jonathan
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