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+/*
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+ * @Description: 漫游
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+ * @Version: 1.0
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+ * @Author: joy
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+ * @Date: 2023-04-12 21:42:26
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+ * @LastEditors: joy
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+ * @LastEditTime: 2023-04-13 16:32:25
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+ */
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+export default class Roaming {
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+ /**
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+ * 创建一个漫游实例
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+ * @param {Object} viewer 三维场景viewer对象
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+ * @param {Array<Cesium.Cartesian3>/Array<[lng,lat,height]>} positions 坐标串,点集合
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+ * @param {Object} options 具有以下属性:
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+ * @param {Number} options.time 漫游时间
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+ * @param {Number} options.speed 速度
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+ * @param {Number} options.followedX 距离运动点的距离(后方)
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+ * @param {Number} options.followedZ 距离运动点的高度(上方)
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+ * @param {Number} options.height 高度差
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+ * @param {Number} options.role 0自由模式 1跟随模式 2第一视角 3上帝视角
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+ * 第一人称摄像头放置在主角的前面
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+ * 第三人称摄像头放置在主角的背后
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+ *
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+ * @param {Object} [options.model] model的样式,具有以下属性:
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+ * @param {Number} [options.model.url] 模型的url
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+ *
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+ * @param {Object} [options.billboard] 广告牌的样式,具有以下属性:
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+ * @param {Number} [options.billboard.imgUrl] 广告牌图片
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+ * @param {Number} [options.billboard.scale=1] 尺寸
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+ * @param {Object} [options.billboard.scaleByDistance] 距离相机的距离缩放点。
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+ * @param {Number} [options.billboard.scaleByDistance.near=0] 相机范围的下界。
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+ * @param {String} [options.billboard.scaleByDistance.nearValue=0] 相机范围下界的值。
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+ * @param {String} [options.billboard.scaleByDistance.far=1] 相机范围的上限。
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+ * @param {Number} [options.billboard.scaleByDistance.farValue=0] 该值位于摄像机范围的上界。
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+ *
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+ * @param {Object} [options.point] point的样式,具有以下属性:
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+ * @param {Number} [options.point.pixelSize=10] 指定点的大小,以像素为单位
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+ * @param {Array} [options.point.color=[255,255,255,0]] 点位颜色,颜色数组,[0~255,0~255,0~255,0~1],[red 红色,green 绿色,blue 蓝色,alpha 透明度]
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+ * @param {String} [options.point.outlineColor=[255,255,255,0]] 指定点轮廓的颜色,,颜色数组,[0~255,0~255,0~255,0~1],[red 红色,green 绿色,blue 蓝色,alpha 透明,
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+ * @param {Number} [options.point.outlineWidth=0] 指定点轮廓的宽度
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+ *
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+ * @param {Object} [options.label] label的样式,具有以下属性:
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+ * @param {Number} [options.label.text=""] 文字
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+ * @param {String} [options.label.font="24px Helvetica"] 字体样式
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+ * @param {String} [options.label.fillColor=[255,255,255,0]] 字体颜色
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+ * @param {String} [options.label.outlineColor=[255,255,255,0]] 字体边框颜色
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+ * @param {Number} [options.label.outlineWidth=1] 边框宽度
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+ * @param {Number} [options.label.showBackground=false] 是否显示背景颜色
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+ * @param {Number} [options.label.backgroundColor=[255,255,255,0]] 背景颜色
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+ * @param {Number} [options.label.pixelOffset] 偏移像素
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+ * @param {Number} [options.label.pixelOffset.x=0] 横向偏移像素
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+ * @param {Number} [options.label.pixelOffset.y=0] 纵向偏移像素
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+ * @param {Number} [options.label.scale=1] 尺寸
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+ * @param {Number} [options.label.scaleByDistance] 相机范围
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+ * @param {Number} [options.label.scaleByDistance.near=1.5e2] 相机范围的下界。
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+ * @param {String} [options.label.scaleByDistance.nearValue=1] 相机范围下界的值。
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+ * @param {String} [options.label.scaleByDistance.far=2400] 相机范围的上限。
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+ * @param {Number} [options.label.scaleByDistance.farValue=0] 该值位于摄像机范围的上界。
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+ * @memberof Roaming
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+ */
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+ constructor(viewer, positions, options) {
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+ if (!viewer) throw new Cesium.DeveloperError('no viewer object!');
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+ if (!positions) throw new Cesium.DeveloperError('no positions Array!');
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+
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+ this.viewer = viewer;
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+ this.entity = undefined;
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+
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+ options = options || {};
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+ options.time = Cesium.defaultValue(options.time, 360);
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+ options.speed = Cesium.defaultValue(options.speed, 10);
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+ options.isPathShow = Cesium.defaultValue(options.isPathShow, true);
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+ options.height = Cesium.defaultValue(options.height, 5);
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+ options.role = Cesium.defaultValue(options.role, 1);
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+ options.followedX = Cesium.defaultValue(options.followedX, 50);
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+ options.followedZ = Cesium.defaultValue(options.followedZ, 10);
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+
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+ this.time = options.time;
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+ this.speed = options.speed;
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+ this.isPathShow = options.isPathShow;
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+ this.height = options.height;
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+ this.role = options.role;
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+ this.followedX = options.followedX;
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+ this.followedZ = options.followedZ;
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+
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+ this.model = options.model;
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+ this.billboard = options.billboard;
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+ this.point = options.point;
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+ this.label = options.label;
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+
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+ this.property = this.ComputeRoamingLineProperty(positions, this.time);
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+ }
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+
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+ /**
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+ * @ignore
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+ * @param {*} Lines 点集合
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+ * @param {*} time 漫游时间
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+ * @returns
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+ * @memberof Roaming
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+ */
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+ ComputeRoamingLineProperty(Lines, time) {
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+ let _self = this;
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+
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+ let positions = [];
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+ if (Lines[0] instanceof Cesium.Cartesian3) {
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+ positions = Lines;
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+ } else {
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+ positions = Lines.map(point => {
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+ return Cesium.Cartesian3.fromDegrees(point[0], point[1], point[2] || 0);
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+ });
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+ }
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+
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+ //总距离
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+ let distance = [];
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+ for (let i = 0; i < positions.length - 1; i++) {
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+ let dis = Cesium.Cartesian3.distance(positions[i], positions[i + 1])
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+ distance.push(dis)
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+ }
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+
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+ //点与点之间间隔时间
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+ let times = [Cesium.JulianDate.fromDate(new Date())]
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+ times.push(Cesium.JulianDate.addSeconds(times[0], time, new Cesium.JulianDate()))
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+ for (let i = 1; i < positions.length - 1; i++) {
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+ let s = Cesium.JulianDate.addSeconds(times[i], time * (distance[i] / distance[0]), new Cesium.JulianDate())
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+ times.push(s)
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+ }
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+
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+ //一种属性,其值在给定时间内从提供的样本集和指定的插值算法和插值度中插值。
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+ let oriSamples = new Cesium.SampledProperty(Cesium.Cartesian3);
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+ oriSamples.addSamples(times, positions);
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+
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+ let startTime = times[0]; // 起始时间
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+ let stopTime = times[times.length - 1]; // 结束时间
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+ this.viewer.clock.startTime = startTime.clone(); // 设置始时钟始时间
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+ this.viewer.clock.stopTime = stopTime.clone(); // 设置始终停止时间
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+ this.viewer.clock.currentTime = startTime.clone(); // 设置时钟当前时间
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+ this.viewer.clock.clockRange = Cesium.ClockRange.LOOP_STOP; //循环执行
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+ this.viewer.clock.multiplier = this.speed; // 时间速率,数字越大时间过的越快
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+
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+ // 计算提供的实例之间的天数差。
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+ let timeOfResolution = 6;
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+ let samplesNum = Math.floor(
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+ Cesium.JulianDate.secondsDifference(stopTime, startTime) / timeOfResolution
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+ );
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+
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+ let sampledPositions = [];
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+ let sampledTimes = [];
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+ for (let i = 0; i < samplesNum + 1; i++) {
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+ let sampleTime = Cesium.JulianDate.addSeconds(
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+ startTime,
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+ i * timeOfResolution,
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+ new Cesium.JulianDate()
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+ );
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+ let tmpPos = oriSamples.getValue(sampleTime);
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+ sampledPositions.push(Cesium.Cartographic.fromCartesian(tmpPos));
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+ sampledTimes.push(sampleTime);
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+ }
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+
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+ let promise = Cesium.sampleTerrainMostDetailed(
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+ this.viewer.terrainProvider,
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+ sampledPositions
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+ ).then(updatedPositions => {
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+
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+ let carPositionProperty = new Cesium.SampledPositionProperty();
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+
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+ //高度
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+ for (let i = 0; i < sampledPositions.length; i++) {
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+ sampledPositions[i].height = sampledPositions[i].height + this.height
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+ }
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+
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+ for (let i = 0; i < samplesNum + 1; i++) {
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+ carPositionProperty.addSample(
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+ sampledTimes[i],
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+ Cesium.Ellipsoid.WGS84.cartographicToCartesian(sampledPositions[i])
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+ );
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+ }
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+
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+ var position = carPositionProperty;
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+ this.InitRoaming(position, startTime, stopTime, this.isPathShow)
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+ });
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+ }
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+
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+ /**
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+ * @ignore
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+ * @param {*} position computeRoamingLineProperty计算的属性
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+ * @param {*} start 开始时间节点
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+ * @param {*} stop 结束时间节点
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+ * @param {*} isPathShow path路径是否显示
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+ * @memberof Roaming
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+ */
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+ InitRoaming(position, start, stop, isPathShow) {
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+ let _self = this;
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+ this.entity = this.viewer.entities.add({
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+ // 和时间轴关联
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+ availability: new Cesium.TimeIntervalCollection([new Cesium.TimeInterval({
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+ start: start,
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+ stop: stop
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+ })]),
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+ // 位置
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+ position: position,
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+ //基于位置移动自动计算方向.
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+ orientation: new Cesium.VelocityOrientationProperty(position),
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+ //路径
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+ path: {
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+ resolution: 1,
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+ //设置航线样式,线条颜色,内发光粗细,航线宽度等
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+ material: new Cesium.PolylineGlowMaterialProperty({
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+ glowPower: 0.1,
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+ color: Cesium.Color.YELLOW
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+ }),
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+ width: 10,
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+ show: isPathShow
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+ }
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+ })
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+
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+ if (this.model) {
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+ let model = this.model;
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+
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+ // 加载模型, 模型数据,跨域,模型文件必须放本地
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+ this.entity.model = {
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+ // 模型路径
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+ uri: model.url,
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+ // 模型最小刻度
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+ minimumPixelSize: 64,
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+ maximumSize: 128,
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+ // 设置模型最大放大大小
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+ maximumScale: 200,
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+ // 模型是否可见
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+ show: true,
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+ // 模型轮廓颜色
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+ silhouetteColor: Cesium.Color.WHITE,
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+ // 模型颜色 ,这里可以设置颜色的变化
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+ // color: color,
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+ // 仅用于调试,显示魔仙绘制时的线框
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+ debugWireframe: false,
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+ // 仅用于调试。显示模型绘制时的边界球。
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+ debugShowBoundingVolume: false,
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+
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+ scale: 20,
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+ runAnimations: true // 是否运行模型中的动画效果
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+ };
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+ } else if (this.billboard) {
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+ let billboard = this.billboard;
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+
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+ billboard.imgUrl = Cesium.defaultValue(billboard.imgUrl, 'jt3dSDK/imgs/point/point3.png');
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+
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+ this.entity.billboard = {
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+ image: billboard.imgUrl, // default: undefined
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+ show: true, // default
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+ width: 30, // default: undefined
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+ scale: 1,
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+ height: 30, // default: undefined
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+ pixelOffset: new Cesium.Cartesian2(0, -14), // default: (0, 0)
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+ // disableDepthTestDistance: 0,
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+ }
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+
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+ } else {
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+ let point = {};
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+ if (this.point) {
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+ point = this.point;
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+ }
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+
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+ //点的大小
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+ point.pixelSize = Cesium.defaultValue(point.pixelSize, 10);
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+ //点位颜色
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+ if (point.color) {
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+ if (point.color instanceof Array) {
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+ point.color = new Cesium.Color(point.color[0] / 255, point.color[1] / 255, point.color[2] / 255, point.color[3]);
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+ } else if (typeof(point.color) === 'string') {
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+ point.color = new Cesium.Color.fromCssColorString(point.color);
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+ } else {
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+ point.color = new Cesium.Color.fromCssColorString("#FFFF00");
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+ }
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+ }
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+
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+ //点位轮廓颜色
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+ if (point.outlineColor) {
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+ if (point.outlineColor instanceof Array) {
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+ point.outlineColor = new Cesium.Color(point.outlineColor[0] / 255, point.outlineColor[1] / 255, point.outlineColor[2] / 255, point.outlineColor[3]);
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+ } else if (typeof(point.outlineColor) === 'string') {
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+ point.outlineColor = new Cesium.Color.fromCssColorString(point.outlineColor);
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+ } else {
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+ point.outlineColor = new Cesium.Color.fromCssColorString("#FFFF00");
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+ }
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+ }
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+
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+ //点位轮廓宽度
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+ point.outlineWidth = Cesium.defaultValue(point.outlineWidth, 2);
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+
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+ this.entity.point = point
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+ }
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+
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+ /* 判断是否需要绘制文字 */
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+ if (this.label) {
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+
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+ let label = this.label;
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+
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+ label.text = Cesium.defaultValue(label.text, "");
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+ label.font = Cesium.defaultValue(label.font, "24px Helvetica"); //字体样式
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+
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+ //字体颜色
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+ if (label.fillColor) {
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+ if (label.fillColor instanceof Array) {
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+ label.fillColor = new Cesium.Color(label.fillColor[0] / 255, label.fillColor[1] / 255, label.fillColor[2] / 255, label.fillColor[3]);
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+ } else if (typeof(label.fillColor) === 'string') {
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+ label.fillColor = new Cesium.Color.fromCssColorString(label.fillColor);
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+ } else {
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+ label.fillColor = new Cesium.Color.fromCssColorString("#FFFF00");
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+ }
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+ }
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+
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+ //字体边框颜色
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+ if (label.outlineColor) {
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+ if (label.outlineColor instanceof Array) {
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+ label.outlineColor = new Cesium.Color(label.outlineColor[0] / 255, label.outlineColor[1] / 255, label.outlineColor[2] / 255, label.outlineColor[3]);
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+ } else if (typeof(label.outlineColor) === 'string') {
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+ label.outlineColor = new Cesium.Color.fromCssColorString(label.outlineColor);
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+ } else {
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+ label.outlineColor = new Cesium.Color.fromCssColorString("#FFFF00");
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+ }
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+ }
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+
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+ //字体边框宽度
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+ label.outlineWidth = Cesium.defaultValue(label.outlineWidth, 1);
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+
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+ //是否显示背景颜色
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+ label.showBackground = Cesium.defaultValue(label.showBackground, false);
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+ //背景颜色
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+ if (label.backgroundColor) {
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+ if (label.backgroundColor instanceof Array) {
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+ label.backgroundColor = new Cesium.Color(label.backgroundColor[0] / 255, label.backgroundColor[1] / 255, label.backgroundColor[2] / 255, label.backgroundColor[3]);
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+ } else if (typeof(label.backgroundColor) === 'string') {
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+ label.backgroundColor = new Cesium.Color.fromCssColorString(label.backgroundColor);
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+ } else {
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+ label.backgroundColor = new Cesium.Color.fromCssColorString("#FFFF00");
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+ }
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+ }
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+
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+ label.pixelOffset = Cesium.defaultValue(label.pixelOffset, 0);
|
|
|
+ label.scale = Cesium.defaultValue(label.scale, 1);
|
|
|
+
|
|
|
+
|
|
|
+ this.entity.label = {
|
|
|
+ text: label.text,
|
|
|
+ font: label.font, //字体样式
|
|
|
+ fillColor: label.fillColor, //字体颜色
|
|
|
+ outlineColor: label.outlineColor, //字体边框颜色
|
|
|
+ outlineWidth: label.outlineWidth, //边框宽度
|
|
|
+ style: Cesium.LabelStyle.FILL_AND_OUTLINE, //FILL不要轮廓 , OUTLINE只要轮廓,FILL_AND_OUTLINE轮廓加填充
|
|
|
+
|
|
|
+ verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
|
|
|
+ showBackground: label.showBackground, //是否显示背景颜色
|
|
|
+ backgroundColor: label.backgroundColor, // 背景颜色
|
|
|
+ backgroundPadding: new Cesium.Cartesian2(6, 6), //指定以像素为单位的水平和垂直背景填充padding
|
|
|
+ disableDepthTestDistance: Number.POSITIVE_INFINITY,
|
|
|
+
|
|
|
+ scale: label.scale, //尺寸
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ //偏移量
|
|
|
+ if (label.pixelOffset) {
|
|
|
+ label.pixelOffset.x = Cesium.defaultValue(label.pixelOffset.x, 0);
|
|
|
+ label.pixelOffset.y = Cesium.defaultValue(label.pixelOffset.y, 0);
|
|
|
+ this.entity.label.pixelOffset = new Cesium.Cartesian2(label.pixelOffset.x, label.pixelOffset.y);
|
|
|
+ }
|
|
|
+
|
|
|
+ if (label.scaleByDistance) {
|
|
|
+ label.scaleByDistance.near = Cesium.defaultValue(label.scaleByDistance.near, 0);
|
|
|
+ label.scaleByDistance.nearValue = Cesium.defaultValue(label.scaleByDistance.nearValue, 0);
|
|
|
+ label.scaleByDistance.far = Cesium.defaultValue(label.scaleByDistance.far, 1);
|
|
|
+ label.scaleByDistance.farValue = Cesium.defaultValue(label.scaleByDistance.farValue, 0);
|
|
|
+
|
|
|
+ this.entity.label.scaleByDistance = new Cesium.NearFarScalar(label.scaleByDistance.near, label.scaleByDistance.nearValue, label.scaleByDistance.far, label.scaleByDistance.farValue) //按距离缩放,即距离大于180米时,图标不显示 Cesium.NearFarScalar(near, nearValue, far, farValue)相机范围的下界。相机范围下界的值。相机范围的上限。该值位于摄像机范围的上界。
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+
|
|
|
+ this.entity.position.setInterpolationOptions({ // 点插值
|
|
|
+ interpolationDegree: 5,
|
|
|
+ interpolationAlgorithm: Cesium.LagrangePolynomialApproximation
|
|
|
+ })
|
|
|
+
|
|
|
+ this.initRole(this.role);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @param {Object} role 0自由模式 1跟随模式 2第一视角 3 第三视角 后方、前方、俯视(上帝视角)、左侧、右侧
|
|
|
+ */
|
|
|
+ initRole(role) {
|
|
|
+ let _self = this;
|
|
|
+
|
|
|
+ if (role == 0) { //自由模式
|
|
|
+ this.viewer.trackedEntity = undefined;
|
|
|
+
|
|
|
+ //获取被clock监听的全部事件数量
|
|
|
+ let len = _self.viewer.clock.onTick.numberOfListeners;
|
|
|
+ for (let i = 0; i < len; i++) {
|
|
|
+ //将被监听的方法移除来停止方法
|
|
|
+ _self.viewer.clock.onTick.removeEventListener(_self.viewer.clock.onTick._listeners[i]);
|
|
|
+ }
|
|
|
+ } else if (role == 1) { //跟随模式
|
|
|
+
|
|
|
+ this.viewer.trackedEntity = this.entity;
|
|
|
+
|
|
|
+ //获取被clock监听的全部事件数量
|
|
|
+ let len = _self.viewer.clock.onTick.numberOfListeners;
|
|
|
+ for (let i = 0; i < len; i++) {
|
|
|
+ //将被监听的方法移除来停止方法
|
|
|
+ _self.viewer.clock.onTick.removeEventListener(_self.viewer.clock.onTick._listeners[i]);
|
|
|
+ }
|
|
|
+
|
|
|
+ } else if (role == 2) { //第一视角
|
|
|
+
|
|
|
+ this.viewer.trackedEntity = this.entity;
|
|
|
+
|
|
|
+ let exection = function TimeExecution() {
|
|
|
+ if (_self.viewer.clock.shouldAnimate === true) {
|
|
|
+ //获取位置
|
|
|
+ let center = _self.entity.position.getValue(
|
|
|
+ _self.viewer.clock.currentTime
|
|
|
+ );
|
|
|
+ //获取偏向角
|
|
|
+ let orientation = _self.entity.orientation.getValue(
|
|
|
+ _self.viewer.clock.currentTime
|
|
|
+ )
|
|
|
+ let transform = Cesium.Transforms.eastNorthUpToFixedFrame(center);
|
|
|
+ transform = Cesium.Matrix4.fromRotationTranslation(Cesium.Matrix3.fromQuaternion(orientation), center);
|
|
|
+
|
|
|
+ var transformX = _self.followedX || 50; //距离运动点的距离(后方)
|
|
|
+ var transformZ = _self.followedZ || 10; //距离运动点的高度(上方)
|
|
|
+
|
|
|
+ _self.viewer.camera.lookAtTransform(transform, new Cesium.Cartesian3(transformX, 0, transformZ))
|
|
|
+ }
|
|
|
+ };
|
|
|
+ //监听时间变化 让cesium的时钟方法来监听该方法
|
|
|
+ this.viewer.clock.onTick.addEventListener(exection);
|
|
|
+
|
|
|
+ // //视角变换
|
|
|
+ // var matrix3Scratch = new Cesium.Matrix3();
|
|
|
+
|
|
|
+ // function getModelMatrix(entity, time, result) {
|
|
|
+ // var position = Cesium.Property.getValueOrUndefined(entity.position, time, new Cesium.Cartesian3());
|
|
|
+ // if (!Cesium.defined(position)) {
|
|
|
+ // return undefined;
|
|
|
+ // }
|
|
|
+ // var orientation = Cesium.Property.getValueOrUndefined(entity.orientation, time, new Cesium.Quaternion());
|
|
|
+ // if (!Cesium.defined(orientation)) {
|
|
|
+ // result = Cesium.Transforms.eastNorthUpToFixedFrame(position, undefined, result);
|
|
|
+ // } else {
|
|
|
+ // result = Cesium.Matrix4.fromRotationTranslation(Cesium.Matrix3.fromQuaternion(orientation, matrix3Scratch),
|
|
|
+ // position, result);
|
|
|
+ // }
|
|
|
+ // return result;
|
|
|
+ // }
|
|
|
+
|
|
|
+ // var scratch = new Cesium.Matrix4();
|
|
|
+ // let renderListener = function(e) {
|
|
|
+ // var time = _self.viewer.clock.currentTime.secondsOfDay - _self.viewer.clock.startTime.secondsOfDay;
|
|
|
+
|
|
|
+ // getModelMatrix(_self.entity, _self.viewer.clock.currentTime, scratch);
|
|
|
+
|
|
|
+ // var transformX = _self.followedX || 50; //距离运动点的距离(后方)
|
|
|
+ // var transformZ = _self.followedZ || 10; //距离运动点的高度(上方)
|
|
|
+ // _self.viewer.scene.camera.lookAtTransform(scratch, new Cesium.Cartesian3(-transformX, 0, transformZ));
|
|
|
+ // }
|
|
|
+ // this.viewer.scene.preRender.addEventListener(renderListener);
|
|
|
+
|
|
|
+ } else if (role == 3) { //第三视角 上帝视角
|
|
|
+
|
|
|
+ this.viewer.trackedEntity = this.entity;
|
|
|
+
|
|
|
+ let exection = function TimeExecution() {
|
|
|
+ if (_self.viewer.clock.shouldAnimate === true) {
|
|
|
+ //获取位置
|
|
|
+ // let center = _self.entity.position.getValue(
|
|
|
+ // _self.viewer.clock.currentTime
|
|
|
+ // );
|
|
|
+ // // 更新相机位置(上帝视角)
|
|
|
+ // _self.viewer.camera.lookAt(center, new Cesium.Cartesian3(0, 0, 1000))
|
|
|
+
|
|
|
+ let center = _self.entity.position.getValue(
|
|
|
+ _self.viewer.clock.currentTime
|
|
|
+ );
|
|
|
+ let orientation = _self.entity.orientation.getValue(
|
|
|
+ _self.viewer.clock.currentTime
|
|
|
+ )
|
|
|
+ let transform = Cesium.Transforms.eastNorthUpToFixedFrame(center);
|
|
|
+ transform = Cesium.Matrix4.fromRotationTranslation(Cesium.Matrix3.fromQuaternion(orientation), center);
|
|
|
+
|
|
|
+ var transformX = -50; //距离运动点的距离(后方)
|
|
|
+ var transformZ = 250; //距离运动点的高度(上方)
|
|
|
+
|
|
|
+ _self.viewer.camera.lookAtTransform(transform, new Cesium.Cartesian3(transformX, 0, transformZ))
|
|
|
+ }
|
|
|
+ };
|
|
|
+ //监听时间变化 让cesium的时钟方法来监听该方法
|
|
|
+ this.viewer.clock.onTick.addEventListener(exection);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 漫游的暂停和继续
|
|
|
+ * @param {Boolean} state bool类型 false为暂停,ture为继续
|
|
|
+ * @memberof Roaming
|
|
|
+ */
|
|
|
+ PauseOrContinue(state) {
|
|
|
+ this.viewer.clock.shouldAnimate = state;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 向前飞行
|
|
|
+ */
|
|
|
+ forwardFly() {
|
|
|
+ // var clockViewModel = this.viewer.clockViewModel;
|
|
|
+ // var multiplier = clockViewModel.multiplier;
|
|
|
+ // if (multiplier < 0) {
|
|
|
+ // clockViewModel.multiplier = -multiplier;
|
|
|
+ // }
|
|
|
+ // clockViewModel.shouldAnimate = true;
|
|
|
+
|
|
|
+ var multiplier = this.viewer.clock.multiplier;
|
|
|
+ if (multiplier < 0) {
|
|
|
+ this.viewer.clock.multiplier = -multiplier;
|
|
|
+ }
|
|
|
+ this.viewer.clock.shouldAnimate = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 向后飞行
|
|
|
+ */
|
|
|
+ backwardsFly() {
|
|
|
+ // var clockViewModel = this.viewer.clockViewModel;
|
|
|
+ // var multiplier = clockViewModel.multiplier;
|
|
|
+ // if (multiplier > 0) {
|
|
|
+ // clockViewModel.multiplier = -multiplier;
|
|
|
+ // }
|
|
|
+ // clockViewModel.shouldAnimate = true;
|
|
|
+
|
|
|
+ var multiplier = this.viewer.clock.multiplier;
|
|
|
+ if (multiplier > 0) {
|
|
|
+ this.viewer.clock.multiplier = -multiplier;
|
|
|
+ }
|
|
|
+ this.viewer.clock.shouldAnimate = true;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 改变飞行的速度
|
|
|
+ * @param {Number} value 整数类型
|
|
|
+ * @memberof Roaming
|
|
|
+ */
|
|
|
+ ChangeRoamingSpeed(value) {
|
|
|
+ this.viewer.clock.multiplier = value;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 取消漫游
|
|
|
+ * @memberof Roaming
|
|
|
+ */
|
|
|
+ EndRoaming() {
|
|
|
+ if (this.entity !== undefined) {
|
|
|
+ this.viewer.entities.remove(this.entity);
|
|
|
+ }
|
|
|
+ this.viewer.trackedEntity = undefined;
|
|
|
+ this.viewer.clock.shouldAnimate = false;
|
|
|
+
|
|
|
+ //获取被clock监听的全部事件数量
|
|
|
+ let len = this.viewer.clock.onTick.numberOfListeners;
|
|
|
+ for (let i = 0; i < len; i++) {
|
|
|
+ //将被监听的方法移除来停止方法
|
|
|
+ this.viewer.clock.onTick.removeEventListener(this.viewer.clock.onTick._listeners[i]);
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|