cesium本地文档-天空盒-arcgis切片404-服务查询
1.vite-plugin-cesium
// vite-plugin-cesium 是一个 Vite 插件,用于在 Vite 项目中轻松集成和使用 Cesium 地图引擎。它简化了在 Vite 项目中使用 Cesium 的配置和引入过程。
// 具体来说,vite-plugin-cesium 主要提供了以下功能:
// 自动引入 Cesium:通过 vite-plugin-cesium 插件,在 Vite 项目中可以直接引入 Cesium,无需手动配置复杂的路径等信息。
// 处理 Cesium 的依赖关系:Cesium 本身有一些依赖关系需要处理,vite-plugin-cesium 可以帮助自动处理这些依赖,确保 Cesium 在 Vite 项目中正常运行。
// 优化加载:vite-plugin-cesium 可以优化 Cesium 的加载方式,避免不必要的网络请求和加载时间,提高项目性能。
// 总的来说,vite-plugin-cesium 简化了在 Vite 项目中使用 Cesium 的流程,使得开发者更容易地集成 Cesium 地图引擎到他们的项目中,并且提供了一些优化功能来改善用户体验。
2. cesium本地文档查看
下载sdk,案例以1.106.1版本为例,执行build-docs生成本地http://localhost:8080/Build/Documentation
3.天空盒skyBox设置背景色-六张图片放在public下面,以相对路径引入
cesium1.106.1
<link href="<%= BASE_URL %>Cesium/Widgets/widgets.css" rel="stylesheet">
<script src="./Cesium/Cesium.js"></script>
4.arcgis切片404问题
addLayers (item) {
let { layerUrl, name, visible, layerName } = item;
// let img_layer = null
if (name.includes('天地图')) {
let img_layer = viewer.imageryLayers.addImageryProvider(
new Cesium.UrlTemplateImageryProvider({
subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
url: item.layerUrl3d,
show: visible,
name: name,
})
);
} else {
let img_layer = viewer.imageryLayers.addImageryProvider(
new Cesium.WebMapTileServiceImageryProvider({
// url: layerUrl + "/WMTS/tile/1.0.0/" + layerName + "/{Style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}.png",
// 行列号就会减少一倍
url: layerUrl + "/tile/{TileMatrix}/{TileRow}/{TileCol}",
tileMatrixSetID: "",
tileWidth: 256,
tileHeight: 256,
tilingScheme: new Cesium.GeographicTilingScheme(),
maximumLevel: 18,
tileMatrixLabels: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"],
})
);
img_layer.imageryProvider.layerName = name
}
},
5. 根据屏幕点击获取经纬度,进行arcgis服务查询
let _this = this
let handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
handler.setInputAction(function (event) {
let pick = viewer.scene.pick(event.position);
let ray = viewer.camera.getPickRay(event.position);
const position = event.position;
let cartesian = viewer.camera.pickEllipsoid(position, viewer.scene.globe.ellipsoid);
// 将世界坐标转换为地理坐标(经度和纬度)
let cartographic = Cesium.Cartographic.fromCartesian(cartesian);
let longitude = Cesium.Math.toDegrees(cartographic.longitude);
let latitude = Cesium.Math.toDegrees(cartographic.latitude);
if (pick && pick.id._type) {
let obj = pick.id;
} else {
_this.$emit('getPointHandle', [longitude, latitude])
}
}, Cesium.ScreenSpaceEventType.LEFT_CLICK)
// 获取点击点位信息
getPointHandle (coordinate) {
this.coordinate = coordinate
let allLayers = viewer.imageryLayers._layers
this.queryLayers = allLayers.filter(item => item.show && (item.imageryProvider.layerName === '公益林优化调整数据' || item.imageryProvider.layerName === '管护小班'))
if (this.queryLayers.length) {
const url = this.queryLayers[0].imageryProvider.url.split('/tile')[0]
this.queryLayer(url, coordinate)
this.queryLayers[0].imageryProvider.url.includes('name_km') ? this.isManagementShow = true : this.isForestShow = true
}
},
queryLayer (propLayerUrl, coordinate) {
let params = {
geometry: coordinate.join(','),
geometryType: 'esriGeometryPoint',
outFields: '*',
returnGeometry: true,
f: 'pjson'
};
fetch(propLayerUrl + '/0/query?' + new URLSearchParams(params)).then(response => response.json())
.then(json => {
if (json.features && json.features.length) {
if (this.polygonFeature) {
// 删除数据并且销毁
viewer.dataSources.remove(this.polygonFeature, true)
this.polygonFeature = null
}
this.infForestManage = json.features[0].attributes
let geojson = {
"type": "Polygon",
"coordinates": json.features[0].geometry.rings
}
// 转化geojson数据
const geojsonDataSource = Cesium.GeoJsonDataSource.load(geojson, {
stroke: Cesium.Color.HOTPINK,
fill: Cesium.Color.PINK,
strokeWidth: 2,
markerSymbol: '?'
})
geojsonDataSource.then(dataSource => {
this.polygonFeature = dataSource
viewer.dataSources.add(this.polygonFeature);
viewer.zoomTo(dataSource)
})
} else {
this.$message.warning('没有查询到该图层信息')
this.infForestManage = {}
}
})
},
6.进行wms服务查询
// 获取点击点位信息
getPointHandle (coordinate) {
this.coordinate = coordinate
if (!this.isMap3) {
let allLayers = gisMap.map.getLayers().getArray()
this.queryLayers = allLayers.find(item => item.values_.visible && (item.values_.name == "公益林优化调整数据"))
if (this.queryLayers) {
this.loading = true
this.getProp2d().then(json => {
this.queryLayer(json.data)
})
}
} else {
let allLayers = viewer.imageryLayers._layers
this.queryLayers = allLayers.find(item => item.show && (item.imageryProvider.layerName === '公益林优化调整数据'))
if (this.queryLayers) {
this.loading = true
this.getProp3d()
}
}
},
// 查询服务属性
async getProp2d () {
let source = this.queryLayers.getSource();
let urlrd = source.getFeatureInfoUrl(
this.coordinate, gisMap.map.getView().getResolution(), gisMap.map.getView().getProjection(),
{ 'INFO_FORMAT': 'application/json', 'FEATURE_COUNT': 1 });
return await axios.get(urlrd, {
headers: {
'Content-Type': 'application/json;charset=UTF-8'
}
}).then(json => {
return json
})
},
getProp3d () {
const bboxSize = 0.001
const [longitude, latitude] = this.coordinate
const url = this.queryLayers.imageryProvider.url
const urlParams = new URLSearchParams({
service: 'WMS',
request: 'GetFeatureInfo',
version: '1.1.0',
layers: 'map1:gyl_20231123_84',
query_layers: 'map1:gyl_20231123_84',
bbox: `${longitude - bboxSize},${latitude - bboxSize},${longitude + bboxSize},${latitude + bboxSize}`,
width: 101,
height: 101,
info_format: 'application/json',
x: 50,
y: 50,
srs: 'EPSG:4326',
transparent: true
})
const fullUrl = `${url}?${urlParams.toString()}`;
fetch(fullUrl)
.then(response => {
if (!response.ok) {
throw new Error('Network response was not ok ' + response.statusText);
}
return response.json();
})
.then(data => {
this.queryLayer(data)
})
},
queryLayer (json) {
this.loading = false
if (json.features && json.features.length) {
const features = json.features
if (!this.isMap3) {
if (this.polygonFeature) {
gisMap.featuresSource.removeFeature(this.polygonFeature)
this.polygonFeature = null
}
this.infForestManage = features[0].properties
this.polygonFeature = gisMap.featureUtils.transformFeatureFromGeojson(features[0].geometry)
gisMap.featuresSource.addFeature(this.polygonFeature)
gisMap.flyTo(this.polygonFeature)
} else {
if (this.polygonFeature) {
// 删除数据并且销毁
viewer.dataSources.remove(this.polygonFeature, true)
this.polygonFeature = null
}
this.infForestManage = features[0].properties
console.log(features, 'features')
let geojson = features[0].geometry
// 转化geojson数据
const geojsonDataSource = Cesium.GeoJsonDataSource.load(geojson, {
stroke: Cesium.Color.HOTPINK,
fill: Cesium.Color.PINK,
strokeWidth: 2,
markerSymbol: '?'
})
geojsonDataSource.then(dataSource => {
this.polygonFeature = dataSource
viewer.dataSources.add(this.polygonFeature);
viewer.zoomTo(dataSource)
})
}
this.isForestShow = true
} else {
this.$message.warning('没有查询到该图层信息')
this.infForestManage = {}
}
},
原文地址:https://blog.csdn.net/ANNENBERG/article/details/137089173
免责声明:本站文章内容转载自网络资源,如本站内容侵犯了原著者的合法权益,可联系本站删除。更多内容请关注自学内容网(zxcms.com)!