import * as THREE from 'three';

export const isNullOfUndefined = (param) => {
    if (null === param || undefined === param) {
        return true;
    } else {
        return false;
    }
}

export const rotationToNum = (rotation) => {
    let res = rotation * 180 / Math.PI;
    if (res < 0) {
        res += 360;
    } else if (res > 360) {
        res -= 360;
    }
    return res;
}

export const rotationParseNum = (num) => {
    return num * Math.PI / 180;
}