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add spherical_coordinate
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@@ -151,7 +151,7 @@ These examples incubate dotSCAD and dotSCAD refactors these examples. See [examp
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- [util/slice](https://openhome.cc/eGossip/OpenSCAD/lib3x-slice.html)
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- [util/some](https://openhome.cc/eGossip/OpenSCAD/lib3x-some.html)
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- [util/sort](https://openhome.cc/eGossip/OpenSCAD/lib3x-sort.html)
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- util/spherical_coordinate
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- [util/spherical_coordinate](https://openhome.cc/eGossip/OpenSCAD/lib3x-spherical_coordinate.html)
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- [util/sub_str](https://openhome.cc/eGossip/OpenSCAD/lib3x-sub_str.html)
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- [util/split_str](https://openhome.cc/eGossip/OpenSCAD/lib3x-split_str.html)
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- [util/sum](https://openhome.cc/eGossip/OpenSCAD/lib3x-sum.html)
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19
docs/lib3x-spherical_coordinate.md
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19
docs/lib3x-spherical_coordinate.md
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@@ -0,0 +1,19 @@
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# spherical_coordinate
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Converts from Cartesian to Polar coordinates. It returns `[radius, theta, phi]`.
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**Since:** 3.0
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## Parameters
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- `point` : The Cartesian coordinates of a point.
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## Examples
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use <util/spherical_coordinate.scad>;
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coord = spherical_coordinate([100, 100, 100]);
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r = round(coord[0]);
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theta = round(coord[1]);
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phi = round(coord[2]);
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assert([r, theta, phi] == [173, 45, 35]);
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@@ -1,3 +1,13 @@
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/**
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* spherical_coordinate.scad
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*
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* @copyright Justin Lin, 2020
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* @license https://opensource.org/licenses/lgpl-3.0.html
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*
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* @see https://openhome.cc/eGossip/OpenSCAD/lib3x-spherical_coordinate.html
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*
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**/
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function spherical_coordinate(point) =
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// mathematics [r, theta, phi]
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[
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