58 lines
1.5 KiB
OpenSCAD
58 lines
1.5 KiB
OpenSCAD
//
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// NopSCADlib Copyright Chris Palmer 2018
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// nop.head@gmail.com
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// hydraraptor.blogspot.com
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//
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// This file is part of NopSCADlib.
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//
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// NopSCADlib is free software: you can redistribute it and/or modify it under the terms of the
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// GNU General Public License as published by the Free Software Foundation, either version 3 of
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// the License, or (at your option) any later version.
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//
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// NopSCADlib is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along with NopSCADlib.
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// If not, see <https://www.gnu.org/licenses/>.
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//
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include <../global_defs.scad>
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use <../utils/rounded_polygon.scad>
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use <../utils/annotation.scad>
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r = 5;
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h = 40;
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h2 = 20;
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h3 = 30;
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w = 100;
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w2 = 70;
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w3 = 30;
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profile = [
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[ -w / 2 + r, r, r],
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[ -w / 2 + r / 2, 2 * r + eps, -eps],
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[-w2 / 2, h - r, r],
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[-w3 / 2, h2 + r,-r],
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[ 0, h3 - r, r],
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[ w3 / 2, h2 + r,-r],
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[ w2 / 2, h - r, r],
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[ w / 2 - r / 2, 2 * r + eps, -eps],
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[ w / 2 - r, r, r],
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];
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module rounded_polygons() {
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tangents = rounded_polygon_tangents(profile);
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length = rounded_polygon_length(profile, tangents);
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rotate([70, 0, 315])
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linear_extrude(eps)
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rounded_polygon(profile, tangents);
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translate([0, -10])
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label(str("perimeter length = ", length), valign = "top", halign = "right");
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}
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rounded_polygons();
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