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@jscad/modeling

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Constructive Solid Geometry (CSG) Library for JSCAD

openjscad.xyz

jscad/OpenJSCAD.org

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const test = require('ava') const geom3 = require('../geometries/geom3') const { geodesicSphere } = require('./index') const comparePolygonsAsPoints = require('../../test/helpers/comparePolygonsAsPoints') test('geodesicSphere (defaults)', (t) => { const obs = geodesicSphere() const pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 20) }) test('geodesicSphere (options)', (t) => { // test radius let obs = geodesicSphere({ radius: 5 }) let pts = geom3.toPoints(obs) const exp = [ [[4.253254557317035, 0, 2.628654726407001], [2.628654726407001, -4.253254557317035, 0], [4.253254557317035, 0, -2.628654726407001]], [[4.253254557317035, 0, -2.628654726407001], [2.628654726407001, 4.253254557317035, 0], [4.253254557317035, 0, 2.628654726407001]], [[4.253254557317035, 0, -2.628654726407001], [0, -2.628654726407001, -4.253254557317035], [0, 2.628654726407001, -4.253254557317035]], [[4.253254557317035, 0, -2.628654726407001], [0, 2.628654726407001, -4.253254557317035], [2.628654726407001, 4.253254557317035, 0]], [[4.253254557317035, 0, -2.628654726407001], [2.628654726407001, -4.253254557317035, 0], [0, -2.628654726407001, -4.253254557317035]], [[0, -2.628654726407001, 4.253254557317035], [4.253254557317035, 0, 2.628654726407001], [0, 2.628654726407001, 4.253254557317035]], [[2.628654726407001, -4.253254557317035, 0], [4.253254557317035, 0, 2.628654726407001], [0, -2.628654726407001, 4.253254557317035]], [[4.253254557317035, 0, 2.628654726407001], [2.628654726407001, 4.253254557317035, 0], [0, 2.628654726407001, 4.253254557317035]], [[-4.253254557317035, 0, -2.628654726407001], [-2.628654726407001, -4.253254557317035, 0], [-4.253254557317035, 0, 2.628654726407001]], [[-4.253254557317035, 0, 2.628654726407001], [-2.628654726407001, 4.253254557317035, 0], [-4.253254557317035, 0, -2.628654726407001]], [[0, -2.628654726407001, 4.253254557317035], [0, 2.628654726407001, 4.253254557317035], [-4.253254557317035, 0, 2.628654726407001]], [[-4.253254557317035, 0, 2.628654726407001], [-2.628654726407001, -4.253254557317035, 0], [0, -2.628654726407001, 4.253254557317035]], [[0, 2.628654726407001, 4.253254557317035], [-2.628654726407001, 4.253254557317035, 0], [-4.253254557317035, 0, 2.628654726407001]], [[0, 2.628654726407001, -4.253254557317035], [0, -2.628654726407001, -4.253254557317035], [-4.253254557317035, 0, -2.628654726407001]], [[-4.253254557317035, 0, -2.628654726407001], [-2.628654726407001, 4.253254557317035, 0], [0, 2.628654726407001, -4.253254557317035]], [[-4.253254557317035, 0, -2.628654726407001], [0, -2.628654726407001, -4.253254557317035], [-2.628654726407001, -4.253254557317035, 0]], [[0, -2.628654726407001, 4.253254557317035], [-2.628654726407001, -4.253254557317035, 0], [2.628654726407001, -4.253254557317035, 0]], [[0, 2.628654726407001, 4.253254557317035], [2.628654726407001, 4.253254557317035, 0], [-2.628654726407001, 4.253254557317035, 0]], [[0, 2.628654726407001, -4.253254557317035], [-2.628654726407001, 4.253254557317035, 0], [2.628654726407001, 4.253254557317035, 0]], [[0, -2.628654726407001, -4.253254557317035], [2.628654726407001, -4.253254557317035, 0], [-2.628654726407001, -4.253254557317035, 0]] ] t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 20) t.true(comparePolygonsAsPoints(pts, exp)) // test frequency obs = geodesicSphere({ radius: 5, frequency: 18 }) pts = geom3.toPoints(obs) t.notThrows.skip(() => geom3.validate(obs)) t.is(pts.length, 180) }) test('geodesicSphere (zero radius)', (t) => { const obs = geodesicSphere({ radius: 0 }) const pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 0) })