Function scale_factors

pub fn scale_factors<Src, Dst>(mat: &Transform3D<f32, Src, Dst>) -> (f32, f32)

Computes the scale factors of this matrix; that is, the amounts each basis vector is scaled by.

This code comes from gecko gfx/2d/Matrix.h with the following modifications:

• Removed xMajor parameter.
• All arithmetics is done with double precision.