40 lines
986 B
TypeScript
40 lines
986 B
TypeScript
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import { Vector3 } from "three";
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/**
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* 轨道控制的数学类,观察向量和角度的互相转换
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* 当x当抬头或者低头到90度时,触发万向锁.
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*
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* @class Orbit
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*/
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export declare class Orbit {
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private m_RoX;
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RoZ: number;
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get RoX(): number;
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set RoX(v: number);
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/**
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* 使用旋转角度 计算观察向量
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*
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* @param {Vector3} [dir] 引用传入,如果传入,那么就不构造新的向量
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* @returns {Vector3} 返回观察向量
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* @memberof Orbit
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*/
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UpdateDirection(dir?: Vector3): Vector3;
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/**
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* 使用观察向量,计算旋转角度
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*
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* @param {Vector3} dir
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* @memberof Orbit
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*/
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UpdateRoValue(dir: Vector3): void;
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/**
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*
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* 根据观察向量 求头部的向量.
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*
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* @static
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* @param {Vector3} dir
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* @param {Vector3} [up]
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* @returns {Vector3}
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* @memberof Orbit
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*/
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static ComputUpDirection(dir: Vector3, up?: Vector3): Vector3;
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}
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