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sdk4.0/src/Draw/drawPolygon.js

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2025-07-03 13:54:01 +08:00
import MouseTip from '../MouseTip'
import MouseEvent from '../Event'
import Draw from './draw'
/**
* @extends Draw*/
class DrawPolygon extends Draw {
/**
* @constructor
* @param [options] {object} 面属性
* @param [options.color=rgba(185,14,14,0.58)] {object} 线属性
* */
constructor(sdk, options = {}) {
super(sdk, options)
this.polygonHasCreated = false
}
static create_polygon(that, viewer = that.viewer) {
that.polygonHasCreated = true
let id = that.randomString()
viewer.entities.add(
new Cesium.Entity({
id: id,
polygon: {
classificationType: Cesium.ClassificationType.BOTH,
hierarchy: new Cesium.CallbackProperty((e) => {
return new Cesium.PolygonHierarchy(that.positions)
}),
material: Cesium.Color.fromCssColorString(that.color),
zIndex: 99999999
},
polyline: {
positions: new Cesium.CallbackProperty((e) => {
return that.positions.concat(that.positions[0])
}),
width: 2,
material: Cesium.Color.fromCssColorString('#c1c505').withAlpha(0.5),
clampToGround: true,
zIndex: 99999999
},
})
)
return id
}
/**
* @desc 开始动态绘制面
* @method start
* @param cb {function} 回调函数
* @memberOf DrawPolygon
* @example draw.start((err,positions)=>{
*
* })
* */
start(cb) {
if (YJ.Measure.GetMeasureStatus()) {
cb('上一次测量未结束')
} else {
this.polygonHasCreated = false
super.start()
YJ.Measure.SetMeasureStatus(true)
let into
this.tip = new MouseTip('左键确定右键结束CTRL+右键撤销', this.sdk)
this.event = new MouseEvent(this.sdk)
this.positions = []
this.points_ids = [] //存放左键点击时临时添加的point的id
let cache_positions = []
let cache_84_position = []
this.event.mouse_left((movement, cartesian) => {
if(into === '2D') {
return
}
into = '3D'
this.positions = cache_positions.concat({ ...cartesian })
this.tip.setPosition(
cartesian,
movement.position.x,
movement.position.y
)
if (!this.polygonHasCreated) {
let polyline_id = DrawPolygon.create_polygon(this)
this.points_ids.push(polyline_id)
}
cache_positions.push(cartesian)
// console.log(cache_positions)
cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
// console.log(this.cartesian3Towgs84(cartesian))
this.points_ids.push(this.create_point(cartesian))
})
this.event.mouse_right((movement, cartesian) => {
if(into === '2D') {
return
}
// let positions = []
// console.log(cache_positions)
// cache_positions.forEach((item) => {
// let p = this.cartesian3Towgs84(item)
// console.log(item)
// positions.push(p)
// })
cb(null, cache_84_position)
this.end()
})
this.event.mouse_move((movement, cartesian) => {
if(into === '2D') {
return
}
this.positions = cache_positions.concat({ ...cartesian })
this.tip.setPosition(
cartesian,
movement.endPosition.x,
movement.endPosition.y
)
})
this.event.mouse_right_keyboard_ctrl((movement, cartesian) => {
if(into === '2D') {
return
}
if (this.points_ids.length > 1) {
this.remove_entity(this.points_ids.pop()) //移除point
cache_positions.pop()
cache_84_position.pop()
}
})
this.event.gesture_pinck_start_keyboard_ctrl(() => {
if(into === '2D') {
return
}
if (this.points_ids.length > 1) {
this.remove_entity(this.points_ids.pop()) //移除point
cache_positions.pop()
cache_84_position.pop()
this.positions = cache_positions.concat(cartesian)
}
})
this.event.gesture_pinck_start((movement, cartesian) => {
if(into === '2D') {
return
}
let startTime = new Date()
this.event.gesture_pinck_end(() => {
let endTime = new Date()
if (endTime - startTime >= 500) {
cb(null, cache_84_position)
this.end()
}
else {
this.tip.setPosition(
cartesian,
(movement.position1.x + movement.position2.x) / 2,
(movement.position1.y + movement.position2.y) / 2
)
if (!this.polygonHasCreated) {
let polyline_id = DrawPolygon.create_polygon(this)
this.points_ids.push(polyline_id)
}
cache_positions.push(cartesian)
// console.log(cache_positions)
cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
// console.log(this.cartesian3Towgs84(cartesian))
this.points_ids.push(this.create_point(cartesian))
this.positions = cache_positions.concat(cartesian)
}
})
})
if (!this._is2D && this._sdk2D) {
this.event2D = new MouseEvent(this._sdk2D)
this.event2D.mouse_left((movement, cartesian) => {
if(into === '3D') {
return
}
into = '2D'
this.positions = cache_positions.concat({ ...cartesian })
this.tip.setPosition(
cartesian,
movement.position.x + this.viewer.canvas.width,
movement.position.y
)
if (!this.polygonHasCreated) {
let polyline_id = DrawPolygon.create_polygon(this, this._sdk2D.viewer)
this.points_ids.push(polyline_id)
}
cache_positions.push(cartesian)
// console.log(cache_positions)
cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
// console.log(this.cartesian3Towgs84(cartesian))
this.points_ids.push(this.create_point(cartesian, this._sdk2D.viewer))
})
this.event2D.mouse_right((movement, cartesian) => {
if(into === '3D') {
return
}
// let positions = []
// console.log(cache_positions)
// cache_positions.forEach((item) => {
// let p = this.cartesian3Towgs84(item)
// console.log(item)
// positions.push(p)
// })
cb(null, cache_84_position)
this.end()
})
this.event2D.mouse_move((movement, cartesian) => {
if(into === '3D') {
return
}
this.positions = cache_positions.concat({ ...cartesian })
this.tip.setPosition(
cartesian,
movement.endPosition.x + this.viewer.canvas.width,
movement.endPosition.y
)
})
this.event2D.mouse_right_keyboard_ctrl((movement, cartesian) => {
if(into === '3D') {
return
}
if (this.points_ids.length > 1) {
this.remove_entity(this.points_ids.pop()) //移除point
cache_positions.pop()
cache_84_position.pop()
}
})
this.event2D.gesture_pinck_start_keyboard_ctrl(() => {
if(into === '3D') {
return
}
if (this.points_ids.length > 1) {
this.remove_entity(this.points_ids.pop()) //移除point
cache_positions.pop()
cache_84_position.pop()
this.positions = cache_positions.concat(cartesian)
}
})
this.event2D.gesture_pinck_start((movement, cartesian) => {
if(into === '3D') {
return
}
let startTime = new Date()
this.event2D.gesture_pinck_end(() => {
let endTime = new Date()
if (endTime - startTime >= 500) {
cb(null, cache_84_position)
this.end()
}
else {
this.tip.setPosition(
cartesian,
((movement.position1.x + movement.position2.x) / 2) + this.viewer.canvas.width,
(movement.position1.y + movement.position2.y) / 2
)
if (!this.polygonHasCreated) {
let polyline_id = DrawPolygon.create_polygon(this, this._sdk2D.viewer)
this.points_ids.push(polyline_id)
}
cache_positions.push(cartesian)
// console.log(cache_positions)
cache_84_position.push(this.cartesian3Towgs84(cartesian, this.viewer))
// console.log(this.cartesian3Towgs84(cartesian))
this.points_ids.push(this.create_point(cartesian, this._sdk2D.viewer))
this.positions = cache_positions.concat(cartesian)
}
})
})
}
}
}
}
export default DrawPolygon