import { Strategy } from "./strategy.js"; /** * YUp策略类 */ export class YUpRStrategy extends Strategy { /** * 原点姿态 * @type {Object} */ originPointPose = null; /** * 统一坐标系统 * @param {Object} model - 模型 * @param {Object} worldPose - 世界姿态 */ unifiedCoordinateSystem(model) { console.log("Y-up: beforeAddApplyMatrix"); return model } /** * 设置本地原点姿态 * @param {Object} worldPose - 世界姿态 */ setLocalOriginPose(worldPose) { this.originPointPose = worldPose; console.log("Y-up: convertLocalToWorld"); } /** * 转换本地到世界 * @param {Object} model - 模型 * @param {Object} localPosition - 本地位置 */ convertLocalToWorld(localPosition) { var quaternion = new THREE.Quaternion(this.originPointPose.worldQuaternion.x, this.originPointPose.worldQuaternion.y, this.originPointPose.worldQuaternion.z, this.originPointPose.worldQuaternion.w); var rotationMatrix = new THREE.Matrix4().makeRotationFromQuaternion(quaternion); var translationMatrix = new THREE.Matrix4().makeTranslation(this.originPointPose.worldPosition.x, this.originPointPose.worldPosition.y, this.originPointPose.worldPosition.z); var transformationMatrix = new THREE.Matrix4().multiplyMatrices(translationMatrix, rotationMatrix); // 用转换矩阵将本地坐标转为世界坐标 let worldPosition = localPosition.applyMatrix4(transformationMatrix); console.log('======打印当前的worldPosition======', worldPosition); return worldPosition } }