FcMatrixRotate(3) – Rotate a matrix

FcMatrixRotate(3) FcMatrixRotate(3)

NAME

FcMatrixRotate - Rotate a matrix

#include <fontconfig/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

21 10月 2022 Fontconfig 2.14.1