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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 { TAU } = require('../maths/constants') const geom3 = require('../geometries/geom3') const { cylinderElliptic } = require('./index') const comparePolygonsAsPoints = require('../../test/helpers/comparePolygonsAsPoints') test('cylinderElliptic (defaults)', (t) => { const obs = cylinderElliptic() const pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 96) }) test('cylinderElliptic (options)', (t) => { // test height let obs = cylinderElliptic({ height: 10, segments: 12 }) let pts = geom3.toPoints(obs) let exp = [ [[0, 0, -5], [0.8660254037844387, 0.49999999999999994, -5], [1, 0, -5]], [[0.8660254037844387, 0.49999999999999994, -5], [0.8660254037844387, 0.49999999999999994, 5], [1, 0, 5], [1, 0, -5]], [[0, 0, 5], [1, 0, 5], [0.8660254037844387, 0.49999999999999994, 5]], [[0, 0, -5], [0.5000000000000001, 0.8660254037844386, -5], [0.8660254037844387, 0.49999999999999994, -5]], [[0.5000000000000001, 0.8660254037844386, -5], [0.5000000000000001, 0.8660254037844386, 5], [0.8660254037844387, 0.49999999999999994, 5], [0.8660254037844387, 0.49999999999999994, -5]], [[0, 0, 5], [0.8660254037844387, 0.49999999999999994, 5], [0.5000000000000001, 0.8660254037844386, 5]], [[0, 0, -5], [0, 1, -5], [0.5000000000000001, 0.8660254037844386, -5]], [[0, 1, -5], [0, 1, 5], [0.5000000000000001, 0.8660254037844386, 5], [0.5000000000000001, 0.8660254037844386, -5]], [[0, 0, 5], [0.5000000000000001, 0.8660254037844386, 5], [0, 1, 5]], [[0, 0, -5], [-0.4999999999999998, 0.8660254037844387, -5], [0, 1, -5]], [[-0.4999999999999998, 0.8660254037844387, -5], [-0.4999999999999998, 0.8660254037844387, 5], [0, 1, 5], [0, 1, -5]], [[0, 0, 5], [0, 1, 5], [-0.4999999999999998, 0.8660254037844387, 5]], [[0, 0, -5], [-0.8660254037844387, 0.49999999999999994, -5], [-0.4999999999999998, 0.8660254037844387, -5]], [[-0.8660254037844387, 0.49999999999999994, -5], [-0.8660254037844387, 0.49999999999999994, 5], [-0.4999999999999998, 0.8660254037844387, 5], [-0.4999999999999998, 0.8660254037844387, -5]], [[0, 0, 5], [-0.4999999999999998, 0.8660254037844387, 5], [-0.8660254037844387, 0.49999999999999994, 5]], [[0, 0, -5], [-1, 0, -5], [-0.8660254037844387, 0.49999999999999994, -5]], [[-1, 0, -5], [-1, 0, 5], [-0.8660254037844387, 0.49999999999999994, 5], [-0.8660254037844387, 0.49999999999999994, -5]], [[0, 0, 5], [-0.8660254037844387, 0.49999999999999994, 5], [-1, 0, 5]], [[0, 0, -5], [-0.8660254037844386, -0.5000000000000001, -5], [-1, 0, -5]], [[-0.8660254037844386, -0.5000000000000001, -5], [-0.8660254037844386, -0.5000000000000001, 5], [-1, 0, 5], [-1, 0, -5]], [[0, 0, 5], [-1, 0, 5], [-0.8660254037844386, -0.5000000000000001, 5]], [[0, 0, -5], [-0.5000000000000004, -0.8660254037844385, -5], [-0.8660254037844386, -0.5000000000000001, -5]], [[-0.5000000000000004, -0.8660254037844385, -5], [-0.5000000000000004, -0.8660254037844385, 5], [-0.8660254037844386, -0.5000000000000001, 5], [-0.8660254037844386, -0.5000000000000001, -5]], [[0, 0, 5], [-0.8660254037844386, -0.5000000000000001, 5], [-0.5000000000000004, -0.8660254037844385, 5]], [[0, 0, -5], [0, -1, -5], [-0.5000000000000004, -0.8660254037844385, -5]], [[0, -1, -5], [0, -1, 5], [-0.5000000000000004, -0.8660254037844385, 5], [-0.5000000000000004, -0.8660254037844385, -5]], [[0, 0, 5], [-0.5000000000000004, -0.8660254037844385, 5], [0, -1, 5]], [[0, 0, -5], [0.5000000000000001, -0.8660254037844386, -5], [0, -1, -5]], [[0.5000000000000001, -0.8660254037844386, -5], [0.5000000000000001, -0.8660254037844386, 5], [0, -1, 5], [0, -1, -5]], [[0, 0, 5], [0, -1, 5], [0.5000000000000001, -0.8660254037844386, 5]], [[0, 0, -5], [0.8660254037844384, -0.5000000000000004, -5], [0.5000000000000001, -0.8660254037844386, -5]], [[0.8660254037844384, -0.5000000000000004, -5], [0.8660254037844384, -0.5000000000000004, 5], [0.5000000000000001, -0.8660254037844386, 5], [0.5000000000000001, -0.8660254037844386, -5]], [[0, 0, 5], [0.5000000000000001, -0.8660254037844386, 5], [0.8660254037844384, -0.5000000000000004, 5]], [[0, 0, -5], [1, 0, -5], [0.8660254037844384, -0.5000000000000004, -5]], [[1, 0, -5], [1, 0, 5], [0.8660254037844384, -0.5000000000000004, 5], [0.8660254037844384, -0.5000000000000004, -5]], [[0, 0, 5], [0.8660254037844384, -0.5000000000000004, 5], [1, 0, 5]] ] t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 36) t.true(comparePolygonsAsPoints(pts, exp)) // test startRadius and endRadius obs = cylinderElliptic({ startRadius: [1, 2], endRadius: [2, 1], segments: 12 }) pts = geom3.toPoints(obs) exp = [ [[0, 0, -1], [0.8660254037844387, 0.9999999999999999, -1], [1, 0, -1]], [[1, 0, -1], [0.8660254037844387, 0.9999999999999999, -1], [2, 0, 1]], [[0, 0, 1], [2, 0, 1], [1.7320508075688774, 0.49999999999999994, 1]], [[2, 0, 1], [0.8660254037844387, 0.9999999999999999, -1], [1.7320508075688774, 0.49999999999999994, 1]], [[0, 0, -1], [0.5000000000000001, 1.7320508075688772, -1], [0.8660254037844387, 0.9999999999999999, -1]], [[0.8660254037844387, 0.9999999999999999, -1], [0.5000000000000001, 1.7320508075688772, -1], [1.7320508075688774, 0.49999999999999994, 1]], [[0, 0, 1], [1.7320508075688774, 0.49999999999999994, 1], [1.0000000000000002, 0.8660254037844386, 1]], [[1.7320508075688774, 0.49999999999999994, 1], [0.5000000000000001, 1.7320508075688772, -1], [1.0000000000000002, 0.8660254037844386, 1]], [[0, 0, -1], [0, 2, -1], [0.5000000000000001, 1.7320508075688772, -1]], [[0.5000000000000001, 1.7320508075688772, -1], [0, 2, -1], [1.0000000000000002, 0.8660254037844386, 1]], [[0, 0, 1], [1.0000000000000002, 0.8660254037844386, 1], [0, 1, 1]], [[1.0000000000000002, 0.8660254037844386, 1], [0, 2, -1], [0, 1, 1]], [[0, 0, -1], [-0.4999999999999998, 1.7320508075688774, -1], [0, 2, -1]], [[0, 2, -1], [-0.4999999999999998, 1.7320508075688774, -1], [0, 1, 1]], [[0, 0, 1], [0, 1, 1], [-0.9999999999999996, 0.8660254037844387, 1]], [[0, 1, 1], [-0.4999999999999998, 1.7320508075688774, -1], [-0.9999999999999996, 0.8660254037844387, 1]], [[0, 0, -1], [-0.8660254037844387, 0.9999999999999999, -1], [-0.4999999999999998, 1.7320508075688774, -1]], [[-0.4999999999999998, 1.7320508075688774, -1], [-0.8660254037844387, 0.9999999999999999, -1], [-0.9999999999999996, 0.8660254037844387, 1]], [[0, 0, 1], [-0.9999999999999996, 0.8660254037844387, 1], [-1.7320508075688774, 0.49999999999999994, 1]], [[-0.9999999999999996, 0.8660254037844387, 1], [-0.8660254037844387, 0.9999999999999999, -1], [-1.7320508075688774, 0.49999999999999994, 1]], [[0, 0, -1], [-1, 0, -1], [-0.8660254037844387, 0.9999999999999999, -1]], [[-0.8660254037844387, 0.9999999999999999, -1], [-1, 0, -1], [-1.7320508075688774, 0.49999999999999994, 1]], [[0, 0, 1], [-1.7320508075688774, 0.49999999999999994, 1], [-2, 0, 1]], [[-1.7320508075688774, 0.49999999999999994, 1], [-1, 0, -1], [-2, 0, 1]], [[0, 0, -1], [-0.8660254037844386, -1.0000000000000002, -1], [-1, 0, -1]], [[-1, 0, -1], [-0.8660254037844386, -1.0000000000000002, -1], [-2, 0, 1]], [[0, 0, 1], [-2, 0, 1], [-1.7320508075688772, -0.5000000000000001, 1]], [[-2, 0, 1], [-0.8660254037844386, -1.0000000000000002, -1], [-1.7320508075688772, -0.5000000000000001, 1]], [[0, 0, -1], [-0.5000000000000004, -1.732050807568877, -1], [-0.8660254037844386, -1.0000000000000002, -1]], [[-0.8660254037844386, -1.0000000000000002, -1], [-0.5000000000000004, -1.732050807568877, -1], [-1.7320508075688772, -0.5000000000000001, 1]], [[0, 0, 1], [-1.7320508075688772, -0.5000000000000001, 1], [-1.0000000000000009, -0.8660254037844385, 1]], [[-1.7320508075688772, -0.5000000000000001, 1], [-0.5000000000000004, -1.732050807568877, -1], [-1.0000000000000009, -0.8660254037844385, 1]], [[0, 0, -1], [0, -2, -1], [-0.5000000000000004, -1.732050807568877, -1]], [[-0.5000000000000004, -1.732050807568877, -1], [0, -2, -1], [-1.0000000000000009, -0.8660254037844385, 1]], [[0, 0, 1], [-1.0000000000000009, -0.8660254037844385, 1], [0, -1, 1]], [[-1.0000000000000009, -0.8660254037844385, 1], [0, -2, -1], [0, -1, 1]], [[0, 0, -1], [0.5000000000000001, -1.7320508075688772, -1], [0, -2, -1]], [[0, -2, -1], [0.5000000000000001, -1.7320508075688772, -1], [0, -1, 1]], [[0, 0, 1], [0, -1, 1], [1.0000000000000002, -0.8660254037844386, 1]], [[0, -1, 1], [0.5000000000000001, -1.7320508075688772, -1], [1.0000000000000002, -0.8660254037844386, 1]], [[0, 0, -1], [0.8660254037844384, -1.0000000000000009, -1], [0.5000000000000001, -1.7320508075688772, -1]], [[0.5000000000000001, -1.7320508075688772, -1], [0.8660254037844384, -1.0000000000000009, -1], [1.0000000000000002, -0.8660254037844386, 1]], [[0, 0, 1], [1.0000000000000002, -0.8660254037844386, 1], [1.7320508075688767, -0.5000000000000004, 1]], [[1.0000000000000002, -0.8660254037844386, 1], [0.8660254037844384, -1.0000000000000009, -1], [1.7320508075688767, -0.5000000000000004, 1]], [[0, 0, -1], [1, 0, -1], [0.8660254037844384, -1.0000000000000009, -1]], [[0.8660254037844384, -1.0000000000000009, -1], [1, 0, -1], [1.7320508075688767, -0.5000000000000004, 1]], [[0, 0, 1], [1.7320508075688767, -0.5000000000000004, 1], [2, 0, 1]], [[1.7320508075688767, -0.5000000000000004, 1], [1, 0, -1], [2, 0, 1]] ] t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 48) t.true(comparePolygonsAsPoints(pts, exp)) // test startAngle and endAngle obs = cylinderElliptic({ startRadius: [1, 2], endRadius: [2, 1], startAngle: TAU / 4, endAngle: TAU * 0.75, segments: 12 }) pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 28) // test startAngle and endAngle obs = cylinderElliptic({ startAngle: 1, endAngle: 1 + TAU }) pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 96) // test segments obs = cylinderElliptic({ segments: 8 }) pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 24) // test center obs = cylinderElliptic({ center: [-5, -5, -5], height: 3, segments: 8 }) pts = geom3.toPoints(obs) exp = [ [[-5, -5, -6.5], [-4.292893218813452, -4.292893218813452, -6.5], [-4, -5, -6.5]], [[-4.292893218813452, -4.292893218813452, -6.5], [-4.292893218813452, -4.292893218813452, -3.5], [-4, -5, -3.5], [-4, -5, -6.5]], [[-5, -5, -3.5], [-4, -5, -3.5], [-4.292893218813452, -4.292893218813452, -3.5]], [[-5, -5, -6.5], [-5, -4, -6.5], [-4.292893218813452, -4.292893218813452, -6.5]], [[-5, -4, -6.5], [-5, -4, -3.5], [-4.292893218813452, -4.292893218813452, -3.5], [-4.292893218813452, -4.292893218813452, -6.5]], [[-5, -5, -3.5], [-4.292893218813452, -4.292893218813452, -3.5], [-5, -4, -3.5]], [[-5, -5, -6.5], [-5.707106781186548, -4.292893218813452, -6.5], [-5, -4, -6.5]], [[-5.707106781186548, -4.292893218813452, -6.5], [-5.707106781186548, -4.292893218813452, -3.5], [-5, -4, -3.5], [-5, -4, -6.5]], [[-5, -5, -3.5], [-5, -4, -3.5], [-5.707106781186548, -4.292893218813452, -3.5]], [[-5, -5, -6.5], [-6, -5, -6.5], [-5.707106781186548, -4.292893218813452, -6.5]], [[-6, -5, -6.5], [-6, -5, -3.5], [-5.707106781186548, -4.292893218813452, -3.5], [-5.707106781186548, -4.292893218813452, -6.5]], [[-5, -5, -3.5], [-5.707106781186548, -4.292893218813452, -3.5], [-6, -5, -3.5]], [[-5, -5, -6.5], [-5.707106781186548, -5.707106781186548, -6.5], [-6, -5, -6.5]], [[-5.707106781186548, -5.707106781186548, -6.5], [-5.707106781186548, -5.707106781186548, -3.5], [-6, -5, -3.5], [-6, -5, -6.5]], [[-5, -5, -3.5], [-6, -5, -3.5], [-5.707106781186548, -5.707106781186548, -3.5]], [[-5, -5, -6.5], [-5, -6, -6.5], [-5.707106781186548, -5.707106781186548, -6.5]], [[-5, -6, -6.5], [-5, -6, -3.5], [-5.707106781186548, -5.707106781186548, -3.5], [-5.707106781186548, -5.707106781186548, -6.5]], [[-5, -5, -3.5], [-5.707106781186548, -5.707106781186548, -3.5], [-5, -6, -3.5]], [[-5, -5, -6.5], [-4.292893218813453, -5.707106781186548, -6.5], [-5, -6, -6.5]], [[-4.292893218813453, -5.707106781186548, -6.5], [-4.292893218813453, -5.707106781186548, -3.5], [-5, -6, -3.5], [-5, -6, -6.5]], [[-5, -5, -3.5], [-5, -6, -3.5], [-4.292893218813453, -5.707106781186548, -3.5]], [[-5, -5, -6.5], [-4, -5, -6.5], [-4.292893218813453, -5.707106781186548, -6.5]], [[-4, -5, -6.5], [-4, -5, -3.5], [-4.292893218813453, -5.707106781186548, -3.5], [-4.292893218813453, -5.707106781186548, -6.5]], [[-5, -5, -3.5], [-4.292893218813453, -5.707106781186548, -3.5], [-4, -5, -3.5]] ] t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 24) t.true(comparePolygonsAsPoints(pts, exp)) }) test('cylinderElliptic (cone)', (t) => { const obs = cylinderElliptic({ endRadius: [0, 0] }) const pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 64) }) test('cylinderElliptic (squished)', (t) => { const obs = cylinderElliptic({ startRadius: [1, 0], endRadius: [0, 1], segments: 4 }) const pts = geom3.toPoints(obs) t.notThrows(() => geom3.validate(obs)) t.is(pts.length, 8) })