modeling/src/maths/vec2/angleRadians.js

/**
 * Calculate the angle of the given vector.
 *
 * @param {vec2} vector - vector of reference
 * @returns {Number} angle in radians
 * @alias module:modeling/maths/vec2.angleRadians
 */
const angleRadians = (vector) => Math.atan2(vector[1], vector[0]) // y=sin, x=cos

module.exports = angleRadians