frysk-FcMatrixRotate






FcMatrixRotate − Rotate a matrix



#include <fontconfig.h>

void FcMatrixRotate (FcMatrix *matrix, double cos, double
sin);



     FcMatrixRotate rotates matrix by the angle who’s sine
is sin and cosine is cos.  This is done by multiplying by
the matrix:

  cos ‐sin
  sin  cos



     Fontconfig version 2.4.2