|
|
<!--
|
|
|
文件描述：地图底部信息条
|
|
|
创建时间：2024/3/29 8:53
|
|
|
创建人：Zhaipeixiu
|
|
|
-->
|
|
|
<script setup lang="ts">
|
|
|
import { Angle } from '@/utils/map/angle.ts'
|
|
|
import {ScreenSpaceEventHandler, Math, ScreenSpaceEventType} from 'cesium'
|
|
|
import {onMounted, ref} from "vue";
|
|
|
import {cartesian2ToCartesian3} from "@/utils/map/coordinate.ts";
|
|
|
let nowLatStr: string, nowLonStr: string
|
|
|
let lonlatStr = ref('')
|
|
|
let isDecimal = ref(true)
|
|
|
|
|
|
onMounted(()=>{
|
|
|
let _viewer = window.viewer
|
|
|
let canvas = _viewer.scene.canvas
|
|
|
let handler = new ScreenSpaceEventHandler(canvas)
|
|
|
handler.setInputAction((e:any)=> {
|
|
|
//捕获椭球体，将笛卡尔二维平面坐标转为椭球体的笛卡尔三维坐标，返回球体表面的点
|
|
|
let position = cartesian2ToCartesian3(_viewer, e.endPosition)
|
|
|
if (position) {
|
|
|
//将笛卡尔三维坐标转为地图坐标（弧度）
|
|
|
let cartographic = _viewer.scene.globe.ellipsoid.cartesianToCartographic(position);
|
|
|
try{
|
|
|
// 将地图坐标（弧度）转为十进制的度数
|
|
|
nowLatStr = Math.toDegrees(cartographic.latitude).toFixed(7) // 纬度
|
|
|
nowLonStr = Math.toDegrees(cartographic.longitude).toFixed(7) // 经度
|
|
|
let camera_alt = (_viewer.camera.positionCartographic.height / 1000) // 视高
|
|
|
// 相机低于250、俯仰角小于-80度时才计算海拔高度（否则误差大）
|
|
|
let needElevation: boolean = camera_alt < 250 && (_viewer.camera.pitch < -(Math.PI/180)*80)
|
|
|
let elevStr = needElevation? _viewer.scene.globe.getHeight(cartographic)?.toFixed(2)+'m'?? '' : '高度过高'
|
|
|
|
|
|
if(isDecimal.value) { //如果是十进制度
|
|
|
lonlatStr.value = `经度: ${nowLonStr}°, 纬度: ${nowLatStr}°, 高度: ${elevStr}`
|
|
|
}
|
|
|
else {
|
|
|
lonlatStr.value = `经度: ${Angle.DecimalDegree2DMS(nowLonStr)}, 纬度: ${Angle.DecimalDegree2DMS(nowLatStr)},
|
|
|
高度: ${elevStr}`
|
|
|
}
|
|
|
} catch (e) {}
|
|
|
}
|
|
|
}, ScreenSpaceEventType.MOUSE_MOVE)
|
|
|
})
|
|
|
|
|
|
function lonlatClick() {
|
|
|
let elevStr = lonlatStr.value.split('高度')[1]
|
|
|
console.log(elevStr)
|
|
|
if(isDecimal.value){
|
|
|
lonlatStr.value = `经度: ${Angle.DecimalDegree2DMS(nowLonStr)}, 纬度: ${Angle.DecimalDegree2DMS(nowLatStr)}, 高度` + elevStr
|
|
|
}
|
|
|
else {
|
|
|
lonlatStr.value = `经度: ${nowLonStr}°, 纬度: ${nowLatStr}°, 高度` + elevStr
|
|
|
}
|
|
|
isDecimal.value = !isDecimal.value
|
|
|
}
|
|
|
</script>
|
|
|
|
|
|
<template>
|
|
|
<div id="map-footer">
|
|
|
<button id="lonlatText" @click="lonlatClick">
|
|
|
{{ lonlatStr }}
|
|
|
</button>
|
|
|
</div>
|
|
|
</template>
|
|
|
|
|
|
<style scoped>
|
|
|
#map-footer {
|
|
|
position: absolute;
|
|
|
bottom: 1px;
|
|
|
left: 0;
|
|
|
width: 100vw;
|
|
|
height: 1.7rem;
|
|
|
background-color: rgba(47, 53, 60, 0.8);
|
|
|
color: #fff;
|
|
|
font-size: 0.7rem;
|
|
|
text-align: center;
|
|
|
z-index: 1;
|
|
|
padding: 0;
|
|
|
display: flex;
|
|
|
align-items: center;
|
|
|
justify-content: center;
|
|
|
}
|
|
|
#lonlatText{
|
|
|
background: none;
|
|
|
border: none;
|
|
|
color: #ffffff;
|
|
|
font-size: 0.8rem;
|
|
|
}
|
|
|
#lonlatText:hover{
|
|
|
cursor: pointer;
|
|
|
}
|
|
|
</style>
|