Man page - fcmatrixscale(3)
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Manual
FcMatrixScale
NAMESYNOPSIS
DESCRIPTION
NAME
FcMatrixScale - Scale a matrix
SYNOPSIS
#include <fontconfig/fontconfig.h>
void FcMatrixScale (FcMatrix * matrix , double sx , double dy );
DESCRIPTION
FcMatrixScale multiplies matrix x values by sx and y values by dy . This is done by multiplying by the matrix:
sx 0
0 dy