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【cesium】3D Tileset 模型加载并与模型树关联
2022-08-05 04:46:00 【顾鸟】
一. 介绍
首先加载 3D TIleset 模型，然后获取 scenetree.json 的数据，渲染出树状结构，通过点击树节点的复选框控制不同模型的显示和隐藏。
二. 效果
三. 实现
// index.vue
<template>
<div class="viewer">
<vc-viewer @ready="ready">
<vc-layer-imagery>
<vc-provider-imagery-tianditu
protocol="http"
map-style="img_w"
token="436ce7e50d27eede2f2929307e6b33c0"
:projectionTransforms="projectionTransforms"
></vc-provider-imagery-tianditu>
</vc-layer-imagery>
</vc-viewer>
<!-- tree -->
<a-tree
class="myTree"
v-model="checkedKeys"
checkable
:tree-data="treeData"
:replace-fields="replaceFields"
@check="onCheck"
>
</a-tree>
</div>
</template>
<script>
import {
update3dtilesMaxtrix } from "../utils";
import scenetree from "../assets/tiles/scenetree.json";
export default {
data() {
return {
mapStyle: "6",
ltype: "0",
projectionTransforms: {
from: "WGS84", to: "GCJ02" },
treeData: [],
replaceFields: {
children: "children", title: "name", key: "id" },
checkedKeys: [],
tileset:null,
conditions: [] // 所有的模型筛选条件
};
},
mounted() {
// tree 数据和默认勾选全部
this.treeData = scenetree.scenes[0].children;
this.treeData.map((item) => {
this.checkedKeys.push(item.id)
});
},
methods: {
// 地图初始化
ready(cesiumInstance) {
const {
Cesium, viewer } = cesiumInstance;
window.$cesiumInstance = cesiumInstance;
window.Cesium = Cesium;
window.viewer = viewer;
this.loadTile();
},
// 加载 3dtiles 模型
loadTile() {
const {
Cesium, viewer } = window.$cesiumInstance;
const scene = viewer.scene; // 创建场景
// 裁切
// let clippingPlanes = new Cesium.ClippingPlaneCollection({
// planes: [
// new Cesium.ClippingPlane(new Cesium.Cartesian3(0.0, 0.0, -0.1), 1),
// ],
// unionClippingRegions: true,
// edgeColor: Cesium.Color.RED,
// edgeWidth: 1,
// });
// 向集合添加一个原语。
const tileset = scene.primitives.add(
new Cesium.Cesium3DTileset({
url: "http://192.168.0.1/sppmodel/1/tileset.json", // 还可以是json、http链接等，用自己的地址
dynamicScreenSpaceError: true,
cullWithChildrenBounds: false,
skipLevels: 0,
maximumScreenSpaceError: 0,
// clippingPlanes: clippingPlanes, //添加裁切
})
);
this.tileset = tileset
tileset.readyPromise
.then(function (tileset) {
// 坐标转换和定位
let params = {
tx: 117.227267, //模型中心X轴坐标（经度，单位：十进制度）
ty: 31.820567, //模型中心Y轴坐标（纬度，单位：十进制度）
tz: 0, //模型中心Z轴坐标（高程，单位：米）
rx: 0, //X轴（经度）方向旋转角度（单位：度）
ry: 0, //Y轴（纬度）方向旋转角度（单位：度）
rz: 0, //Z轴（高程）方向旋转角度（单位：度）
};
update3dtilesMaxtrix(tileset, params);
const default_headingPitchRange = new Cesium.HeadingPitchRange(0.3, -0.2, tileset.boundingSphere.radius * 2.0);
viewer.flyTo(tileset, {
offset: default_headingPitchRange, });
})
.catch(function (error) {
console.log(error);
});
},
// 复选框勾选，这里的代码仅用于个人测试，可以根据业务修改，核心部分是 condition ，通过color和display控制显示和隐藏
onCheck(checkedKeys, info) {
let Cesium = window.Cesium
let isChecked = info.checked
let id = info.node.eventKey
let conditionId = '${id} === ' + `"${
id}"`
if(!isChecked){
// 如果已有
this.conditions.map((item,index) => {
if(item[0] == conditionId){
let condition = [
conditionId,
'color("transparent", 0.0)',
'display("none")'
]
this.conditions.splice(index, 1, condition)
}
})
// 如果没有
let condition = [
conditionId,
'color("transparent", 0.0)',
'display("none")'
]
this.conditions.push(condition)
}
if(isChecked){
this.conditions.map((item,index) => {
if(item[0] == conditionId){
let condition = [
conditionId,
'color("#fff", 1)',
'display("block")'
]
this.conditions.splice(index, 1, condition)
}
})
let condition = [
conditionId,
'color("#fff", 1)',
'display("block")'
]
this.conditions.push(condition)
}
this.tileset.style = new Cesium.Cesium3DTileStyle({
color: {
conditions:this.conditions
},
show: true,
meta: {
description: '"Building id ${id} has height ${Height}."',
},
});
},
},
};
</script>
<style>
.viewer {
width: 100%;
height: 100%;
}
.myTree {
position: fixed;
top: 10px;
left: 10px;
border: 1px solid #fff;
height: 90vh;
overflow-y: auto;
}
.ant-tree-title {
color: #fff;
}
.anticon,
.anticon-caret-down {
color: #fff !important;
}
</style>
// scenetree.json
{
"scenes": [
{
"children": [
{
"id": "f7177163c833dff4b38fc8d2872f1ec6_0",
"name": "Plane003",
"sphere": [
-2177871.57241156,
4388573.82661331,
4070169.49724089,
301.964603253362
],
"type": "element"
},
{
"id": "6c8349cc7260ae62e3b1396831a8398f_0",
"name": "Plane004",
"sphere": [
-2177968.98564988,
4388526.30434503,
4070168.77700749,
18.6367508888525
],
"type": "element"
},
{
"id": "d9d4f495e875a2e075a1a4a6e1b9770f_0",
"name": "Box003",
"sphere": [
-2177956.41521193,
4388561.28516737,
4070152.29468792,
58.3900256451882
],
"type": "element"
},
{
"id": "67c6a1e7ce56d3d6fa748ab6d9af3fd7_0",
"name": "Box004",
"sphere": [
-2177940.31465816,
4388583.60174952,
4070126.62004876,
112.6862769332
],
"type": "element"
},
{
"id": "642e92efb79421734881b53e1e1b18b6_0",
"name": "Box005",
"sphere": [
-2177923.2448635,
4388589.05315064,
4070128.68435485,
19.015938897193
],
"type": "element"
},
{
"id": "f457c545a9ded88f18ecee47145a72c0_0",
"name": "Box007",
"sphere": [
-2177892.50910985,
4388600.3228433,
4070133.7188036,
24.3969130250895
],
"type": "element"
},
{
"id": "c0c7c76d30bd3dcaefc96f40275bdc0a_0",
"name": "Box008",
"sphere": [
-2177879.42042473,
4388605.62667992,
4070138.35543581,
36.4923693944789
],
"type": "element"
},
{
"id": "2838023a778dfaecdc212708f721b788_0",
"name": "Box009",
"sphere": [
-2177858.84968905,
4388613.8195555,
4070142.61756117,
44.4781903217667
],
"type": "element"
},
{
"id": "9a1158154dfa42caddbd0694a4e9bdc8_0",
"name": "Box010",
"sphere": [
-2177819.85389547,
4388625.33935913,
4070147.87422828,
52.7919680298997
],
"type": "element"
},
{
"id": "d82c8d1619ad8176d665453cfb2e55f0_0",
"name": "Box011",
"sphere": [
-2177827.8270523,
4388605.44053528,
4070163.87154112,
31.1277814007166
],
"type": "element"
},
{
"id": "a684eceee76fc522773286a895bc8436_0",
"name": "Box012",
"sphere": [
-2177826.47165405,
4388588.4391185,
4070189.07950585,
74.3639261708206
],
"type": "element"
},
{
"id": "b53b3a3d6ab90ce0268229151c9bde11_0",
"name": "Box025",
"sphere": [
-2177782.80873965,
4388602.18458208,
4070189.25905886,
59.0958449611839
],
"type": "element"
},
{
"id": "9f61408e3afb633e50cdf1b20de6f466_0",
"name": "Box027",
"sphere": [
-2177916.68671059,
4388571.74049088,
4070151.24281245,
26.1330640722622
],
"type": "element"
},
{
"id": "72b32a1f754ba1c09b3695e0cb6cde7f_0",
"name": "Box029",
"sphere": [
-2177826.69318369,
4388602.90255007,
4070174.33056677,
34.1543254212935
],
"type": "element"
},
{
"id": "66f041e16a60928b05a7e228a89c3799_0",
"name": "Box030",
"sphere": [
-2177871.68048543,
4388582.95511164,
4070181.59098084,
95.2397724618698
],
"type": "element"
},
{
"id": "093f65e080a295f8076b1c5722a46aa2_0",
"name": "UTypeStair005",
"sphere": [
-2177877.00732111,
4388579.36833145,
4070179.24494171,
79.5750131756141
],
"type": "element"
},
{
"id": "072b030ba126b2f4b2374f342be9ed44_0",
"name": "Box031",
"sphere": [
-2177893.79810055,
4388559.37585989,
4070176.42650707,
29.9518478201455
],
"type": "element"
},
{
"id": "7f39f8317fbdb1988ef4c628eba02591_0",
"name": "Box032",
"sphere": [
-2177928.14385483,
4388543.45740417,
4070176.32019193,
127.332016722429
],
"type": "element"
},
{
"id": "44f683a84163b3523afe57c2e008bc8c_0",
"name": "Box033",
"sphere": [
-2177933.63057177,
4388548.00202179,
4070166.17402462,
15.2669512093874
],
"type": "element"
},
{
"id": "03afdbd66e7929b125f8597834fa83a4_0",
"name": "Line041",
"sphere": [
-2177800.51923137,
4388601.54067244,
4070185.67182987,
66.2252902291046
],
"type": "element"
},
{
"id": "ea5d2f1c4608232e07d3aa3d998e5135_0",
"name": "Cylinder001",
"sphere": [
-2177867.58168231,
4388591.53105899,
4070182.5529312,
66.5026597261132
],
"type": "element"
},
{
"id": "fc490ca45c00b1249bbe3554a4fdf6fb_0",
"name": "对象001",
"sphere": [
-2177868.04599273,
4388592.44005641,
4070183.49299487,
66.9766626797845
],
"type": "element"
},
{
"id": "3295c76acbf4caaed33c36b1b5fc2cb1_0",
"name": "Sphere001",
"sphere": [
-2177867.44200117,
4388587.77415528,
4070190.1584251,
46.9814287030201
],
"type": "element"
},
{
"id": "735b90b4568125ed6c3f678819b6e058_0",
"name": "Sphere002",
"sphere": [
-2177865.79072534,
4388582.82608368,
4070189.98000546,
38.4659047549649
],
"type": "element"
},
{
"id": "a3f390d88e4c41f2747bfa2f1b5f87db_0",
"name": "Sphere003",
"sphere": [
-2177866.74836847,
4388588.12263532,
4070185.33263861,
40.8065299335501
],
"type": "element"
},
{
"id": "14bfa6bb14875e45bba028a21ed38046_0",
"name": "Sphere004",
"sphere": [
-2177867.42628017,
4388591.09259389,
4070183.44220655,
43.0470234996922
],
"type": "element"
},
{
"id": "7cbbc409ec990f19c78c75bd1e06f215_0",
"name": "Sphere006",
"sphere": [
-2177866.21319075,
4388590.35785231,
4070174.55994013,
29.8919789757402
],
"type": "element"
},
{
"id": "e2c420d928d4bf8ce0ff2ec19b371514_0",
"name": "对象002",
"sphere": [
-2177869.26300768,
4388594.89266678,
4070185.7828374,
61.0836754900489
],
"type": "element"
},
{
"id": "32bb90e8976aab5298d5da10fe66f21d_0",
"name": "Box035",
"sphere": [
-2177866.89630124,
4388594.78318618,
4070163.28195801,
29.4752002089092
],
"type": "element"
},
{
"id": "d2ddea18f00665ce8623e36bd4e3c7c5_0",
"name": "Plane007",
"sphere": [
-2177875.5241787,
4388577.9948076,
4070162.60021223,
326.386703844032
],
"type": "element"
},
{
"id": "ad61ab143223efbc24c7d2583be69251_0",
"name": "Box036",
"sphere": [
-2177874.78775759,
4388587.88624762,
4070185.07688666,
106.642457145352
],
"type": "element"
},
{
"id": "d09bf41544a3365a46c9077ebb5e35c3_0",
"name": "Plane008",
"sphere": [
-2177902.96009593,
4388576.865341,
4070153.03815406,
18.8665609278099
],
"type": "element"
},
{
"id": "fbd7939d674997cdb4692d34de8633c4_0",
"name": "对象003",
"sphere": [
-2177950.96051558,
4388568.05381408,
4070138.64365454,
38.8038027775678
],
"type": "element"
},
{
"id": "28dd2c7955ce926456240b2ff0100bde_0",
"name": "对象004",
"sphere": [
-2177891.92002361,
4388566.02953,
4070167.16849041,
0.864233546717325
],
"type": "element"
},
{
"id": "35f4a8d465e6e1edc05f3d8ab658c551_0",
"name": "对象005",
"sphere": [
-2177907.91595084,
4388560.4106843,
4070164.5823945,
13.797248396647
],
"type": "element"
},
{
"id": "d1fe173d08e959397adf34b1d77e88d7_0",
"name": "Box037",
"sphere": [
-2177907.10744322,
4388560.13806739,
4070166.45055801,
10.6648058767812
],
"type": "element"
},
{
"id": "f033ab37c30201f73f142449d037028d_0",
"name": "Box038",
"sphere": [
-2177784.14478628,
4388619.37691387,
4070167.5553729,
9.26124065940442
],
"type": "element"
},
{
"id": "43ec517d68b6edd3015b3edc9a11367b_0",
"name": "Plane009",
"sphere": [
-2177950.19296102,
4388566.33374746,
4070135.89040034,
39.362430571123
],
"type": "element"
},
{
"id": "9778d5d219c5080b9a6a17bef029331c_0",
"name": "对象006",
"sphere": [
-2177932.48952365,
4388541.88790154,
4070176.41153555,
102.434256876315
],
"type": "element"
},
{
"id": "fe9fc289c3ff0af142b6d3bead98a923_0",
"name": "对象007",
"sphere": [
-2177871.5265536,
4388573.73423268,
4070169.41086651,
302.343206773768
],
"type": "element"
},
{
"id": "68d30a9594728bc39aa24be94b319d21_0",
"name": "Cylinder003",
"sphere": [
-2177932.52871854,
4388541.98315488,
4070176.48710997,
102.355172931768
],
"type": "element"
}
],
"id": "45c48cce2e2d7fbdea1afc51c7c6ad26_0",
"name": "",
"sphere": [
-2177882.76988883,
4388592.59488211,
4070176.2321103,
364.099496126785
],
"type": "node"
}
]
}
// update3dtilesMaxtrix.js
// let params = {
// tx: 120.257, //模型中心X轴坐标（经度，单位：十进制度）
// ty: 31.226, //模型中心Y轴坐标（纬度，单位：十进制度）
// tz: 2800, //模型中心Z轴坐标（高程，单位：米）
// rx: 0, //X轴（经度）方向旋转角度（单位：度）
// ry: 0, //Y轴（纬度）方向旋转角度（单位：度）
// rz: -1 //Z轴（高程）方向旋转角度（单位：度）
// };
export const update3dtilesMaxtrix = function (tileset, params) {
//旋转
let Cesium = window.Cesium
let mx = Cesium.Matrix3.fromRotationX(Cesium.Math.toRadians(params.rx));
let my = Cesium.Matrix3.fromRotationY(Cesium.Math.toRadians(params.ry));
let mz = Cesium.Matrix3.fromRotationZ(Cesium.Math.toRadians(params.rz));
let rotationX = Cesium.Matrix4.fromRotationTranslation(mx);
let rotationY = Cesium.Matrix4.fromRotationTranslation(my);
let rotationZ = Cesium.Matrix4.fromRotationTranslation(mz);
//平移
let position = Cesium.Cartesian3.fromDegrees(params.tx, params.ty, params.tz);
let m = Cesium.Transforms.eastNorthUpToFixedFrame(position);
let scale = Cesium.Matrix4.fromUniformScale(0.85);
// //缩放
Cesium.Matrix4.multiply(m, scale, m);
//旋转、平移矩阵相乘
Cesium.Matrix4.multiply(m, rotationX, m);
Cesium.Matrix4.multiply(m, rotationY, m);
Cesium.Matrix4.multiply(m, rotationZ, m);
//赋值给tileset
tileset._root.transform = m;
// return m;
}
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