/*
* @Date: 2023-09-14 13:34:16
* @LastEditors: gaoxd
* @LastEditTime: 2023-09-14 17:59:27
* @Description:
*/
const pipeArr = [] // 所有的管道数据
var handler = null;
/**
* @description 添加管道
* @param {* geojson 地址} url
* @param {* 管道名称 } name
* @param {* 管道颜色 } color
*/
export function addPolylineVolume(url, name, color) {
if (!handler) {
handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas)
}
addWheelHeight()
var geojsonPromise = Cesium.GeoJsonDataSource.load(url);
viewer.dataSources.add(geojsonPromise).then((dataSource) => {
var entities = dataSource.entities.values;
for (var i = 0; i < entities.length; i++) {
var entity = entities[i];
if (entity.polyline && entity.polyline.positions) {
var positions = entity.polyline.positions.getValue();
entity.polylineVolume = new Cesium.PolylineVolumeGraphics({
positions: positions,
shape: computedCircle(130),
material: Cesium.Color.fromCssColorString(color),
})
entity.nameForDelete = name
}
}
pipeArr.push({
name,
entities
})
});
}
/**
* @description 移除管道
*/
export function removePolylineVolume(name) {
pipeArr.forEach(el => {
if (el.name == name) {
el.entities.forEach(enty => {
enty.show = false
})
}
})
}
function updateWidth(width = 10) {
pipeArr.forEach(el => {
el.entities.forEach(enty => {
if (enty.polylineVolume) {
enty.polylineVolume.shape = computedCircle(width)
}
console.log('enty :>> ', enty);
})
})
}
function addWheelHeight() {
viewer.camera.moveEnd.addEventListener(() => {
// 视高 km
let alt = (viewer.camera.positionCartographic.height / 1000).toFixed(2);
// 方位角
let heading = Cesium.Math.toDegrees(viewer.camera.heading).toFixed(2);
// 俯仰角
let pitch = Cesium.Math.toDegrees(viewer.camera.pitch).toFixed(2);
// 翻滚角
let roll = Cesium.Math.toDegrees(viewer.camera.roll).toFixed(2);
// 级别
let level = 0;
let tileRender = viewer.scene._globe._surface._tilesToRender;
if (tileRender && tileRender.length > 0) {
level = viewer.scene._globe._surface._tilesToRender[0]._level;
}
let str = `级数：${level} 视高：${alt}km 方位角：${heading}° 俯仰角：${pitch}° 翻滚角：${roll}°`;
console.log('str :>> ', str);
if (level > 14) {
updateWidth(10)
} else if (level > 11 && level < 13) {
updateWidth(50)
}
})
}
/**
* @description 设置管道半径
* @radius 管道半径
*/
function computedCircle(radius) {
var positions = [];
for (var i = 0; i < 36; i++) {
var radian = Cesium.Math.toRadians(i * 10);
var x = radius * Math.cos(radian);
var y = radius * Math.sin(radian);
positions.push(new Cesium.Cartesian2(x, y));
}
return positions;
}