@jscad/modeling/src/maths/line3/copy.test.js

Constructive Solid Geometry (CSG) Library for JSCAD

const test = require('ava')
const { create, copy, fromPointAndDirection } = require('./index')

const { compareVectors } = require('../../../test/helpers/index')

test('line3: copy() with two params should update a line3 with same values', (t) => {
  const line1 = create()
  const org1 = fromPointAndDirection(create(), [0, 0, 0], [1, 0, 0])
  const ret1 = copy(line1, org1)
  t.true(compareVectors(line1[0], [0, 0, 0]))
  t.true(compareVectors(line1[1], [1, 0, 0]))
  t.true(compareVectors(ret1[0], [0, 0, 0]))
  t.true(compareVectors(ret1[1], [1, 0, 0]))
  t.not(ret1, org1)

  const line2 = create()
  const org2 = fromPointAndDirection(create(), [1, 2, 3], [1, 0, 1])
  const ret2 = copy(line2, org2)
  t.true(compareVectors(line2[0], [1, 2, 3]))
  t.true(compareVectors(line2[1], [0.7071067811865475, 0, 0.7071067811865475]))
  t.true(compareVectors(ret2[0], [1, 2, 3]))
  t.true(compareVectors(ret2[1], [0.7071067811865475, 0, 0.7071067811865475]))
  t.not(ret2, org2)

  const line3 = create()
  const org3 = fromPointAndDirection(create(), [-1, -2, -3], [0, -1, -1])
  const ret3 = copy(line3, org3)
  t.true(compareVectors(line3[0], [-1, -2, -3]))
  t.true(compareVectors(line3[1], [0, -0.7071067811865475, -0.7071067811865475]))
  t.true(compareVectors(ret3[0], [-1, -2, -3]))
  t.true(compareVectors(ret3[1], [0, -0.7071067811865475, -0.7071067811865475]))
  t.not(ret3, org3)
})