@jscad/modeling/src/maths/vec2/transform.js

Constructive Solid Geometry (CSG) Library for JSCAD

/**
 * Transforms the given vector using the given matrix.
 *
 * @param {vec2} out - receiving vector
 * @param {vec2} vector - vector to transform
 * @param {mat4} matrix - matrix to transform with
 * @returns {vec2} out
 * @alias module:modeling/maths/vec2.transform
 */
const transform = (out, vector, matrix) => {
  const x = vector[0]
  const y = vector[1]
  out[0] = matrix[0] * x + matrix[4] * y + matrix[12]
  out[1] = matrix[1] * x + matrix[5] * y + matrix[13]
  return out
}

module.exports = transform