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rounded_polygon.scad
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rounded_polygon.scad
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//
// 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/>.
//
include <../global_defs.scad>
use <../utils/rounded_polygon.scad>
use <../utils/annotation.scad>
r = 5;
h = 40;
h2 = 20;
h3 = 30;
w = 100;
w2 = 70;
w3 = 30;
profile = [
[ -w / 2 + r, r, r],
[ -w / 2 + r / 2, 2 * r + eps, -eps],
[-w2 / 2, h - r, r],
[-w3 / 2, h2 + r,-r],
[ 0, h3 - r, r],
[ w3 / 2, h2 + r,-r],
[ w2 / 2, h - r, r],
[ w / 2 - r / 2, 2 * r + eps, -eps],
[ w / 2 - r, r, r],
];
module rounded_polygons() {
tangents = rounded_polygon_tangents(profile);
length = rounded_polygon_length(profile, tangents);
rotate([70, 0, 315])
linear_extrude(eps)
rounded_polygon(profile, tangents);
translate([0, -10])
label(str("perimeter length = ", length), valign = "top", halign = "right");
}
rounded_polygons();