{
  "code": "export class MatrixTransform {\r\n    static WorldToScreen2(camera, point) {\r\n        var pointA = this.InverseTransformPoint(camera.transform, point);\r\n        var distance = pointA.z;\r\n        var out = new Laya.Vector3();\r\n        camera.viewport.project(point, camera.projectionViewMatrix, out);\r\n        var value = new Laya.Vector3(out.x / Laya.stage.clientScaleX, out.y / Laya.stage.clientScaleY, distance);\r\n        return value;\r\n    }\r\n    static ScreenToWorld(camera, point) {\r\n        var halfFOV = (camera.fieldOfView * 0.5) * Math.PI / 180;\r\n        let height = point.z * Math.tan(halfFOV);\r\n        let width = height * camera.aspectRatio;\r\n        let lowerLeft = this.GetLowerLeft(camera.transform, point.z, width, height);\r\n        let v = this.GetScreenScale(width, height);\r\n        var value = new Laya.Vector3();\r\n        var lowerLeftA = this.InverseTransformPoint(camera.transform, lowerLeft);\r\n        value = new Laya.Vector3(-point.x / v.x, point.y / v.y, 0);\r\n        Laya.Vector3.add(lowerLeftA, value, value);\r\n        value = this.TransformPoint(camera.transform, value);\r\n        return value;\r\n    }\r\n    static GetScreenScale(width, height) {\r\n        var v = new Laya.Vector3();\r\n        v.x = Laya.stage.width / width / 2;\r\n        v.y = Laya.stage.height / height / 2;\r\n        return v;\r\n    }\r\n    static GetLowerLeft(transform, distance, width, height) {\r\n        var lowerLeft = new Laya.Vector3();\r\n        var right = new Laya.Vector3();\r\n        transform.getRight(right);\r\n        Laya.Vector3.normalize(right, right);\r\n        var xx = new Laya.Vector3(right.x * width, right.y * width, right.z * width);\r\n        Laya.Vector3.add(transform.position, xx, lowerLeft);\r\n        var up = new Laya.Vector3();\r\n        transform.getUp(up);\r\n        Laya.Vector3.normalize(up, up);\r\n        var yy = new Laya.Vector3(up.x * height, up.y * height, up.z * height);\r\n        Laya.Vector3.subtract(lowerLeft, yy, lowerLeft);\r\n        var forward = new Laya.Vector3();\r\n        transform.getForward(forward);\r\n        Laya.Vector3.normalize(forward, forward);\r\n        var zz = new Laya.Vector3(forward.x * distance, forward.y * distance, forward.z * distance);\r\n        Laya.Vector3.subtract(lowerLeft, zz, lowerLeft);\r\n        return lowerLeft;\r\n    }\r\n    static InverseTransformPoint(origin, point) {\r\n        var xx = new Laya.Vector3();\r\n        origin.getRight(xx);\r\n        var yy = new Laya.Vector3();\r\n        origin.getUp(yy);\r\n        var zz = new Laya.Vector3();\r\n        origin.getForward(zz);\r\n        var zz1 = new Laya.Vector3(-zz.x, -zz.y, -zz.z);\r\n        var x = this.ProjectDistance(point, origin.position, xx);\r\n        var y = this.ProjectDistance(point, origin.position, yy);\r\n        var z = this.ProjectDistance(point, origin.position, zz1);\r\n        var value = new Laya.Vector3(x, y, z);\r\n        return value;\r\n    }\r\n    static TransformPoint(origin, point) {\r\n        var value = new Laya.Vector3();\r\n        Laya.Vector3.transformQuat(point, origin.rotation, value);\r\n        Laya.Vector3.add(value, origin.position, value);\r\n        return value;\r\n    }\r\n    static ProjectDistance(A, C, B) {\r\n        var CA = new Laya.Vector3();\r\n        Laya.Vector3.subtract(A, C, CA);\r\n        var angle = this.Angle2(CA, B) * Math.PI / 180;\r\n        var distance = Laya.Vector3.distance(A, C);\r\n        distance *= Math.cos(angle);\r\n        return distance;\r\n    }\r\n    static Angle2(ma, mb) {\r\n        var v1 = (ma.x * mb.x) + (ma.y * mb.y) + (ma.z * mb.z);\r\n        var ma_val = Math.sqrt(ma.x * ma.x + ma.y * ma.y + ma.z * ma.z);\r\n        var mb_val = Math.sqrt(mb.x * mb.x + mb.y * mb.y + mb.z * mb.z);\r\n        var cosM = v1 / (ma_val * mb_val);\r\n        if (cosM < -1)\r\n            cosM = -1;\r\n        if (cosM > 1)\r\n            cosM = 1;\r\n        var angleAMB = Math.acos(cosM) * 180 / Math.PI;\r\n        return angleAMB;\r\n    }\r\n}\r\n//# sourceMappingURL=MatrixTransform.js.map",
  "references": [],
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