/*
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* @Author: shuishen 1109946754@qq.com
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* @Date: 2023-03-23 11:22:18
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* @LastEditors: shuishen 1109946754@qq.com
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* @LastEditTime: 2023-03-24 10:02:32
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* @FilePath: \forest-fire\src\utils\plot\draw\DrawPolygon.js
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* @Description:
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*
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* Copyright (c) 2023 by ${git_name_email}, All Rights Reserved.
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*/
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/**
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* @Author: Caven
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* @Date: 2020-08-29 20:55:14
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*/
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import Draw from './Draw'
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import { PlotEventType } from '@/utils/event/index.js'
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const DEF_STYLE = {
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material: global.DC.Namespace.Cesium.Color.YELLOW.withAlpha(0.6),
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fill: true
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}
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class DrawPolygon extends Draw {
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constructor(style) {
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super()
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this._style = {
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...DEF_STYLE,
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...style
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}
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}
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/**
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*
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* @private
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*/
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_mountedHook () {
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this.curDrawTool.tooltipMess = '左击选择点位,右击结束'
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this._delegate = new global.DC.Namespace.Cesium.Entity({
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polygon: {
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...this._style,
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hierarchy: new global.DC.Namespace.Cesium.CallbackProperty(() => {
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if (this._positions.length > 2) {
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return new global.DC.Namespace.Cesium.PolygonHierarchy(this._positions)
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} else {
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return null
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}
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}, false)
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}
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})
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this._layer.entities.add(this._delegate)
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}
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/**
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*
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* @private
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*/
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_stopdHook () {
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let polygon = new global.DC.Polygon(
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global.DC.Transform.transformCartesianArrayToWGS84Array(this._positions)
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).setStyle(this._style)
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this._options.onDrawStop && this._options.onDrawStop(polygon)
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}
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/**
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*
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* @param position
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* @private
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*/
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_onDrawAnchor (position) {
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this._positions.push(position)
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this.curDrawTool.fire(PlotEventType.CREATE_ANCHOR, { position })
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}
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}
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export default DrawPolygon
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