pango:matrix-font-scale-factors (matrix)

matrix -- a pango:matrix instance

The double floats with the xscale scale factor in the x direction and yscale scale factor in the y direction.

Calculates the scale factors of a matrix on the width and height of the font. That is, xscale is the scale factor in the direction of the x coordinate, and yscale is the scale factor in the direction perpendicular to the vector that the x coordinate is mapped to.

Note that output numbers will always be non-negative.