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<template>
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<div
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id="mapdiv"
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class="previewBox"
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></div>
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</template>
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<script>
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export default {
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data() {
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return {
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levelArray: [
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0, 40000000, 20000000, 10000000, 5000000, 2000000, 1000000, 500000,
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250000, 200000, 100000, 50000, 17000, 9000, 5000, 2000, 1000, 500, 200,
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100, 50, 25, 10, 0,
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],
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}
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},
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mounted() {
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this.init3DMap();
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},
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methods: {
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init3DMap() {
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//地图初始化
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window.sgworld = new SmartEarth.SGWorld("mapdiv", {
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licenseServer: window.sceneConfig.licenseServer,
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});
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window.Viewer = window.sgworld._Viewer;
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// Viewer.camera.flyTo({
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// destination: Cesium.Cartesian3.fromDegrees(110, 33, 8000000),
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// });
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Viewer._enableInfoOrSelection = false;
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//显示fps
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Viewer.scene.debugShowFramesPerSecond = false;
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//导航控件
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// window.sgworld.navControl("nav", false);
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//比例尺
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// window.sgworld.navControl("scale", false);
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//开启深度检测
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// sg.Analysis.depthTestAgainstTerrain(true)
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Viewer.scene.globe.depthTestAgainstTerrain = true;
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// window.elevationTool = new SmartEarth.ElevationTool(window.sg);
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// elevationTool.setContourColor("#F1D487");
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if (this.$store.state.previewLayer) {
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var res = this.$store.state.previewLayer;
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if (res.url.indexOf('.png') != -1) {
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var wkt = this.$wkt.parse(res.geom);
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var height = this.getHeight(wkt.coordinates[2])
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window.BaseMapLayer = Viewer.imageryLayers.addImageryProvider(
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new Cesium.UrlTemplateImageryProvider({
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url: res.url,
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maximumLevel: 18
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})
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);
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Viewer.camera.flyTo({
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destination: Cesium.Cartesian3.fromDegrees(wkt.coordinates[1], wkt.coordinates[0], height),
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});
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} else if (res.url.indexOf('.json') != -1) {
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var tileset = Viewer.scene.primitives.add(
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new Cesium.Cesium3DTileset({
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url: res.url, //192.168.20.106,to4
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maximumScreenSpaceError: 64, // 最大屏幕空间错误：16
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maximumMemoryUsage: 768, // 最大内存：512
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dynamicScreenSpaceError: true, // 减少离相机较远的屏幕空间错误：false
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skipLevelOfDetail: true, // 在遍历时候跳过详情：false
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})
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);
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tileset.readyPromise.then((tileset) => {
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tileset.id = res.cnName;
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tileset.layerId = res.id;
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this.tileSet(tileset, 50)
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Viewer.flyTo(tileset);
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});
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} else {
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Viewer.imageryLayers.removeAll();
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var url = res.url.split(';')
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sgworld.Creator.createImageryProvider('mpt影像', "wms", {
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url: url[0],
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layers: url[1]
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}, "0", undefined, true, "");
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}
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}
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},
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tileSet(tileset, height) {
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//3dtile模型的边界球体
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var boundingSphere = tileset.boundingSphere;
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//迪卡尔空间直角坐标=>地理坐标（弧度制）
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var cartographic_original = Cesium.Cartographic.fromCartesian(boundingSphere.center);
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//地理坐标（弧度制）=>迪卡尔空间直角坐标
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var Cartesian3_original = Cesium.Cartesian3.fromRadians(cartographic_original.longitude, cartographic_original.latitude, cartographic_original.height);
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var Cartesian3_offset = Cesium.Cartesian3.fromRadians(cartographic_original.longitude, cartographic_original.latitude, height);
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//获得地面和offset的转换
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var translation = Cesium.Cartesian3.subtract(Cartesian3_offset, Cartesian3_original, new Cesium.Cartesian3());
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//修改模型矩阵
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tileset.modelMatrix = Cesium.Matrix4.fromTranslation(translation);
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},
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getHeight(level) {
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if (level > 0 && level < 23) {
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return this.levelArray[level]
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}
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return this.levelArray[this.levelArray.length - 1]
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},
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},
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}
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</script>
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<style>
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.previewBox {
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width: 100%;
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height: 100%;
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}
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</style>
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