Matrix3d ​​doesn't support non-uniform scale?

[gswifort]

Matrix3d.scaling only accepts one float. Can I get the matrix for non-uniform scale?

[CEXT-Dan]

You can use Matrix3d.getCoordSystem, then get the scale of the vectors, something like

def get_non_uniform_scale(mat: Ge.Matrix3d):
    pnt = Ge.Point3d()
    x = Ge.Vector3d()
    y = Ge.Vector3d()
    z = Ge.Vector3d()
    mat.getCoordSystem(pnt, x, y, z)
    return Ge.Scale3d(x.length(), y.length(), z.length())

@command()
def doit():
    mat = Ge.Matrix3d()
    mat.setCoordSystem(
        Ge.Point3d.kOrigin,
        Ge.Vector3d.kXAxis * 10,
        Ge.Vector3d.kYAxis * 100,
        Ge.Vector3d.kZAxis * 1000,
    )
    print(get_non_uniform_scale(mat))

(10.00000000000000,100.00000000000000,1000.00000000000000)

[CEXT-Dan]

It’s not in ARX, though, I could add Matrix3d.scale3d in C++ using the above

[gswifort]

It’s not in ARX, though, I could add Matrix3d.scale3d in C++ using the above

It will definitely be more intuitive, for now I will use the above solution. Thanks!