34 lines
1.3 KiB
OpenSCAD
34 lines
1.3 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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//
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//! Layout objects in a line with equal gaps given a vector of their widths.
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//
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include <../global_defs.scad>
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function layout_offset(widths, i, gap = 2) = //! Calculate the offset for the ```i```th item
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i == 0 ? widths[0] / 2
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: layout_offset(widths, i - 1, gap) + widths[i - 1] / 2 + gap + widths[i] / 2;
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module layout(widths, gap = 2, no_offset = false) //! Layout children passing ```$i```
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translate([no_offset ? -widths[0] / 2 : 0, 0])
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for($i = [0 : 1 : len(widths) - 1])
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translate([layout_offset(widths, $i, gap), 0])
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children();
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