List: discuss@lists.openscad.org
From: Doug Moen
Re: [OpenSCAD] Some thoughts on deriving world coordinates for objects
Fri, Oct 23, 2020 3:27 AM
[ 0,0,a ] : a;
echo(a);
rx = [
[1, 0, 0, 0],
[0, cos(a.x), -sin(a.x), 0],
[0, sin(a.x), cos(a.x), 0],
[0, 0, 0, 1]
];
ry = [
[ cos(a.y), 0, sin(a.y), 0],
[ 0, 1, 0, 0],
[ -sin(a.y), 0, cos(a.y), 0],
[ 0, 0, 0, 1]
];