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>
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194

// 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"
        }
    ]
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470

// 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;
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36