fcmatrixrotate(3) - Linux man page

Name

FcMatrixRotate - Rotate a matrix

Synopsis

#include <fontconfig.h>

void FcMatrixRotate(FcMatrix *matrix);
(double cos);
(double sin);
.fi

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

Version

Fontconfig version 2.8.0