import * as THREE from 'three'
export namespace CameraUtil
{
    //创建基于名称的Map相机.
    export function createCameraMap(): Map<string, THREE.Camera>
    {
        let cameraMap = new Map<string, THREE.Camera>();
        //正交相机
        let hei = 2 * window.innerHeight / window.innerWidth;
        let wid = 2;
        var f = 2;
        let cameraOrt = new THREE.OrthographicCamera(window.innerWidth / - f, window.innerWidth / f, window.innerHeight / f, window.innerHeight / - f, - 50000, 100000);
        cameraOrt.position.set(0, 0, 30);
        cameraOrt.up.set(0, 0, -1);
        cameraOrt.lookAt(new THREE.Vector3(0, 0, 0));
        cameraMap.set("OrthographicCamera", cameraOrt);
        //透视相机
        let cameraPre = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 200000);
        cameraPre.position.set(0, 0, 5);
        cameraMap.set("PerspectiveCamera", cameraPre);
        return cameraMap;
    }
}