mirror of
https://github.com/DJSundog/NopSCADlib.git
synced 2024-11-30 10:40:03 -05:00
29 lines
1.3 KiB
OpenSCAD
29 lines
1.3 KiB
OpenSCAD
//
|
|
// NopSCADlib Copyright Chris Palmer 2018
|
|
// nop.head@gmail.com
|
|
// hydraraptor.blogspot.com
|
|
//
|
|
// This file is part of NopSCADlib.
|
|
//
|
|
// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
|
|
// GNU General Public License as published by the Free Software Foundation, either version 3 of
|
|
// the License, or (at your option) any later version.
|
|
//
|
|
// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
|
|
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
// See the GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License along with NopSCADlib.
|
|
// If not, see <https://www.gnu.org/licenses/>.
|
|
//
|
|
|
|
//! Redefines `sphere()` to always have a vertex on all six half axes I.e. vertices at the poles and the equator and `$fn` a multiple of four.
|
|
//! This ensures `hull` and `minkowski` results have the correct dimensions when spheres are placed at the corners.
|
|
|
|
module sphere(r = 1, d = undef) { //! Override `sphere` so that has vertices on all three axes. Has the advantage of giving correct dimensions when hulled
|
|
R = is_undef(d) ? r : d / 2;
|
|
rotate_extrude($fn = r2sides4n(R))
|
|
rotate(-90)
|
|
semi_circle(R);
|
|
}
|