318 lines
10 KiB
JavaScript
318 lines
10 KiB
JavaScript
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import MouseTip from '../MouseTip'
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import MouseEvent from '../Event'
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import Draw from './draw'
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/**
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* @extends Draw*/
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class DrawThreeRect extends Draw {
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/**
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* @constructor
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* @param [options] {object} 三点矩形属性
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* @param [options.color=rgba(185,14,14,0.58)] {object} 线属性
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* */
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constructor(sdk, options = {}) {
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super(sdk, options)
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this.polygonHasCreated = false
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this.rectObject = []
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}
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static create_polygon(that, viewer = that.viewer) {
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that.polygonHasCreated = true
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let id = that.randomString()
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viewer.entities.add(
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new Cesium.Entity({
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id: id,
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polygon: {
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classificationType: Cesium.ClassificationType.BOTH,
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hierarchy: new Cesium.CallbackProperty((e) => {
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return new Cesium.PolygonHierarchy(that.positions)
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}),
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material: Cesium.Color.fromCssColorString(that.color),
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zIndex: 99999999
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},
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polyline: {
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positions: new Cesium.CallbackProperty((e) => {
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return that.positions.concat(that.positions[0])
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}),
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width: 2,
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material: Cesium.Color.fromCssColorString('#c1c505').withAlpha(0.5),
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clampToGround: true,
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zIndex: 99999999
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},
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})
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)
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return id
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}
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computedLastPoint(arr) {
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const start = arr[0];
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const end = arr[1];
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// 计算点到线的距离
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const directionVector = Cesium.Cartesian3.subtract(end, start, new Cesium.Cartesian3());
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const pointToStart = Cesium.Cartesian3.subtract(arr[2], start, new Cesium.Cartesian3());
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const projectionLength = Cesium.Cartesian3.dot(pointToStart, directionVector) / Cesium.Cartesian3.magnitudeSquared(directionVector);
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const projectionVector = Cesium.Cartesian3.multiplyByScalar(directionVector, projectionLength, new Cesium.Cartesian3());
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const projectionPoint = Cesium.Cartesian3.add(start, projectionVector, new Cesium.Cartesian3());
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const distance = Cesium.Cartesian3.distance(arr[2], projectionPoint)
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const perp = Cesium.Cartesian3.subtract(arr[2], projectionPoint, new Cesium.Cartesian3());
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Cesium.Cartesian3.normalize(perp, perp);
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// 生成偏移向量
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const offset = Cesium.Cartesian3.multiplyByScalar(perp, distance, new Cesium.Cartesian3());
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let threePoint = Cesium.Cartesian3.add(end, offset, new Cesium.Cartesian3())
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let lastPoint = Cesium.Cartesian3.add(start, offset, new Cesium.Cartesian3())
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return [{ ...threePoint }, { ...lastPoint }]
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}
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/**
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* @desc 开始动态绘制面
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* @method start
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* @param cb {function} 回调函数
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* @memberOf DrawPolygon
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* @example draw.start((err,positions)=>{
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*
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* })
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* */
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start(cb) {
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if (YJ.Measure.GetMeasureStatus()) {
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cb('上一次测量未结束')
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} else {
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this.polygonHasCreated = false
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super.start()
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YJ.Measure.SetMeasureStatus(true)
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let into
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this.tip = new MouseTip('左键确定，右键结束；CTRL+右键撤销', this.sdk)
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this.event = new MouseEvent(this.sdk)
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let cnt = 0
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this.positions = []
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this.positionsLine = []
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this.points_ids = [] //存放左键点击时临时添加的point的id
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let cache_positions = []
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let cache_84_position = []
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this.event.mouse_left((movement, cartesian) => {
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if (into === '2D') {
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return
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}
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into = '3D'
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cnt++
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this.positions = cache_positions.concat({ ...cartesian })
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this.tip.setPosition(
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cartesian,
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movement.position.x,
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movement.position.y
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)
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if (!this.polygonHasCreated) {
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let polyline_id = DrawThreeRect.create_polygon(this)
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this.points_ids.push(polyline_id)
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}
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cache_positions.push(cartesian)
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cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
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this.points_ids.push(this.create_point(cartesian))
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if (cnt == 3) {
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this.end()
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cb(null, this.rectObject)
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}
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})
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this.event.mouse_right((movement, cartesian) => {
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if (into === '2D') {
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return
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}
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// let positions = []
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// console.log(cache_positions)
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// cache_positions.forEach((item) => {
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// let p = this.cartesian3Towgs84(item)
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// console.log(item)
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// positions.push(p)
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// })
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this.end()
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cb('取消', '')
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})
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this.event.mouse_move((movement, cartesian) => {
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if (into === '2D') {
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return
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}
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// this.positions = cache_positions.concat({ ...cartesian })
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this.tip.setPosition(
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cartesian,
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movement.endPosition.x,
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movement.endPosition.y
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)
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if (cnt == 2) {
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let arr = JSON.parse(JSON.stringify(cache_positions))
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let arr1 = arr.concat({ ...cartesian })
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let pointArr = this.computedLastPoint(arr1)
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arr = arr.concat(pointArr)
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this.positions = arr
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let arr_84 = arr.map(item => {
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return this.cartesian3Towgs84(item, this.viewer)
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})
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this.rectObject = arr_84
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}
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})
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this.event.mouse_right_keyboard_ctrl((movement, cartesian) => {
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if (into === '2D') {
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return
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}
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if (this.points_ids.length > 1) {
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this.remove_entity(this.points_ids.pop()) //移除point
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cache_positions.pop()
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cache_84_position.pop()
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}
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})
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this.event.gesture_pinck_start_keyboard_ctrl(() => {
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if (into === '2D') {
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return
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}
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if (this.points_ids.length > 1) {
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this.remove_entity(this.points_ids.pop()) //移除point
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cache_positions.pop()
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cache_84_position.pop()
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this.positions = cache_positions.concat(cartesian)
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}
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})
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this.event.gesture_pinck_start((movement, cartesian) => {
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if (into === '2D') {
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return
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}
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let startTime = new Date()
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this.event.gesture_pinck_end(() => {
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let endTime = new Date()
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if (endTime - startTime >= 500) {
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cb(null, cache_84_position)
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this.end()
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}
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else {
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this.tip.setPosition(
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cartesian,
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(movement.position1.x + movement.position2.x) / 2,
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(movement.position1.y + movement.position2.y) / 2
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)
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if (!this.polygonHasCreated) {
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let polyline_id = DrawThreeRect.create_polygon(this)
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this.points_ids.push(polyline_id)
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}
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cache_positions.push(cartesian)
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cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
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this.points_ids.push(this.create_point(cartesian))
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this.positions = cache_positions.concat(cartesian)
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}
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})
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})
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if (!this._is2D && this._sdk2D) {
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this.event2D = new MouseEvent(this._sdk2D)
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this.event2D.mouse_left((movement, cartesian) => {
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if (into === '3D') {
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return
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}
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into = '2D'
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cnt++
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this.positions = cache_positions.concat({ ...cartesian })
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this.tip.setPosition(
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cartesian,
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movement.position.x + this.viewer.canvas.width,
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movement.position.y
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)
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if (!this.polygonHasCreated) {
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let polyline_id = DrawThreeRect.create_polygon(this, this._sdk2D.viewer)
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this.points_ids.push(polyline_id)
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}
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cache_positions.push(cartesian)
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cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
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this.points_ids.push(this.create_point(cartesian, this._sdk2D.viewer))
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if (cnt == 3) {
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this.end()
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cb(null, this.rectObject)
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}
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})
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this.event2D.mouse_right((movement, cartesian) => {
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if (into === '3D') {
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return
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}
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this.end()
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cb('取消', '')
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})
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this.event2D.mouse_move((movement, cartesian) => {
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if (into === '3D') {
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return
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}
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// this.positions = cache_positions.concat({ ...cartesian })
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this.tip.setPosition(
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cartesian,
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movement.endPosition.x + this.viewer.canvas.width,
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movement.endPosition.y
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)
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if (cnt == 2) {
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let arr = JSON.parse(JSON.stringify(cache_positions))
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let arr1 = arr.concat({ ...cartesian })
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let pointArr = this.computedLastPoint(arr1)
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arr = arr.concat(pointArr)
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this.positions = arr
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let arr_84 = arr.map(item => {
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return this.cartesian3Towgs84(item, this.viewer)
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})
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this.rectObject = arr_84
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}
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})
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this.event2D.mouse_right_keyboard_ctrl((movement, cartesian) => {
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if (into === '3D') {
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return
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}
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if (this.points_ids.length > 1) {
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this.remove_entity(this.points_ids.pop()) //移除point
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cache_positions.pop()
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cache_84_position.pop()
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}
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})
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this.event2D.gesture_pinck_start_keyboard_ctrl(() => {
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if (into === '3D') {
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return
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}
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if (this.points_ids.length > 1) {
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this.remove_entity(this.points_ids.pop()) //移除point
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cache_positions.pop()
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cache_84_position.pop()
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this.positions = cache_positions.concat(cartesian)
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}
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})
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this.event2D.gesture_pinck_start((movement, cartesian) => {
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if (into === '3D') {
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return
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}
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let startTime = new Date()
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this.event2D.gesture_pinck_end(() => {
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let endTime = new Date()
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if (endTime - startTime >= 500) {
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cb(null, cache_84_position)
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this.end()
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}
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else {
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this.tip.setPosition(
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cartesian,
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((movement.position1.x + movement.position2.x) / 2) + this.viewer.canvas.width,
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(movement.position1.y + movement.position2.y) / 2
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)
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if (!this.polygonHasCreated) {
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let polyline_id = DrawThreeRect.create_polygon(this, this._sdk2D.viewer)
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this.points_ids.push(polyline_id)
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}
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cache_positions.push(cartesian)
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cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
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this.points_ids.push(this.create_point(cartesian, this._sdk2D.viewer))
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this.positions = cache_positions.concat(cartesian)
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}
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})
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})
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}
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}
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}
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}
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export default DrawThreeRect
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