FcMatrixRotate(3) FcMatrixRotate(3)
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
Fontconfig 2.15.0 22 12<?> 2023 FcMatrixRotate(3)
NAME
FcMatrixRotate - Rotate a matrix
SYNOPSIS
#include <fontconfig/fontconfig.h>
void FcMatrixRotate (FcMatrix *matrix, double cos, double sin);
DESCRIPTION
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 2.15.0 22 12<?> 2023 FcMatrixRotate(3)