# cesium-卷帘效果
使用“卷帘图层”工具以交互方式显示被卷帘图层下方的图层。使用此工具可轻松地查看某特定图层下面的内容，而无需在内容列表中关闭该图层。
# 核心代码
/**
* 卷帘
*/
addJuanlian(){
let viewer = this._viewer;
let layers = viewer.imageryLayers;
if(this.anthorLayer){
layers.remove(this.anthorLayer)
}
//天地图token
let TDT_tk = "tdt_token";
//天地图影像
let TDT_IMG_C = "http://{s}.tianditu.gov.cn/img_c/wmts?service=wmts&request=GetTile&version=1.0.0" +
"&LAYER=img&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}" +
"&style=default&format=tiles&tk=" + TDT_tk;
this.anthorLayer = layers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: TDT_IMG_C,
layer: "tdtImg_c",
style: "default",
format: "tiles",
tileMatrixSetID: "c",
subdomains: ["t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7"],
tilingScheme: new Cesium.GeographicTilingScheme(),
tileMatrixLabels: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"],
maximumLevel: 50,
show: false
}));
let balckMarble = this.anthorLayer;
balckMarble.splitDirection = Cesium.ImagerySplitDirection.LEFT;
let slider = document.getElementById('juanlian');
slider.style.display = 'block';
viewer.scene.imagerySplitPosition = (slider.offsetLeft) / slider.parentElement.offsetWidth;
let handler = new Cesium.ScreenSpaceEventHandler(slider);
let moveActive = false;
function move(movement) {
if(!moveActive) {
return;
}
let relativeOffset = movement.endPosition.x ;
let splitPosition = (slider.offsetLeft + relativeOffset) / slider.parentElement.offsetWidth;
slider.style.left = 100.0 * splitPosition + '%';
viewer.scene.imagerySplitPosition = splitPosition;
}
handler.setInputAction(function() {
moveActive = true;
}, Cesium.ScreenSpaceEventType.LEFT_DOWN);
handler.setInputAction(function() {
moveActive = true;
}, Cesium.ScreenSpaceEventType.PINCH_START);
handler.setInputAction(move, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
handler.setInputAction(move, Cesium.ScreenSpaceEventType.PINCH_MOVE);
handler.setInputAction(function() {
moveActive = false;
}, Cesium.ScreenSpaceEventType.LEFT_UP);
handler.setInputAction(function() {
moveActive = false;
}, Cesium.ScreenSpaceEventType.PINCH_END);
},
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
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
# 完整代码
<!DOCTYPE html>
<html lang="en">
<head>
<!-- Use correct character set. -->
<meta charset="utf-8"/>
<!-- Tell IE to use the latest, best version. -->
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<!-- Make the application on mobile take up the full browser screen and disable user scaling. -->
<meta name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"/>
<title>cesium-天气效果</title>
<script src="../lib/Cesium-1.89/Build/Cesium/Cesium.js"></script>
<script src="../../static/lib/vue.min.js"></script>
<script src="../../static/lib/snow.js"></script>
<script src="../../static/lib/rain.js"></script>
<script src="../../static/lib/fog.js"></script>
<style>
@import url(../lib/Cesium-1.89/Build/Cesium/Widgets/widgets.css);
html,
body, #temp {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
#cesiumContainer {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
#juanlian {
position: absolute;
left: 50%;
top: 0;
background-color: #D3D3D3;
width: 5px;
height: 100%;
z-index: 9999;
display: none;
}
#juanlian:hover {
cursor: ew-resize;
}
</style>
</head>
<body>
<div id="temp">
<div style="display: -webkit-flex;display: flex;width: 100%;height: 100%">
<div style="width: 90%;height: 100%">
<div id="cesiumContainer">
<div id="juanlian"></div>
</div>
</div>
<div style="width: 10%;height: 100%;background-color: #d3d3d3;padding: 30px">
<button class="btn" @click="addJuanlian">卷帘</button>
<button class="btn" @click="removeJuanlian">移除卷帘</button>
</div>
</div>
</div>
<script>
let EarthComp = new Vue({
el: "#temp",
data: {
_viewer: undefined,
snow:null,//雪
rain:null,//雨
fog:null,//雾
},
mounted: function () {
let that = this;
this.earthInit();
},
methods: {
/**
* 地球初始化
*/
earthInit() {
//天地图token
let TDT_tk = "tdt_token";
//Cesium token
let cesium_tk = "token";
//标注
let TDT_CIA_C = "http://{s}.tianditu.gov.cn/cia_c/wmts?service=wmts&request=GetTile&version=1.0.0" +
"&LAYER=cia&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}" +
"&style=default&format=tiles&tk=" + TDT_tk;
// 添加mapbox自定义地图实例
let layer = new Cesium.MapboxStyleImageryProvider({
url: 'https://api.mapbox.com/styles/v1',
username: 'sungang',
styleId: 'cky44gl8m0rwn15pqt8ovyhrs',
accessToken: 'pk.eyJ1Ijoic3VuZ2FuZyIsImEiOiJja2VqaW5rbWwwdWc2MnlwaGVrMnBhbnRuIn0.UlFQNpPyJjiYfETSNo5Zkg',
scaleFactor: true
});
//初始页面加载
Cesium.Ion.defaultAccessToken = cesium_tk;
let viewer = new Cesium.Viewer('cesiumContainer', {
geocoder: false, // 位置查找工具
baseLayerPicker: false,// 图层选择器（地形影像服务）
timeline: false, // 底部时间线
homeButton: false,// 视角返回初始位置
fullscreenButton: false, // 全屏
animation: false, // 左下角仪表盘（动画器件）
sceneModePicker: false,// 选择视角的模式（球体、平铺、斜视平铺）
navigationHelpButton: false, //导航帮助按钮
imageryProvider: layer
});
//调用影响中文注记服务
viewer.imageryLayers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: TDT_CIA_C,
layer: "tdtImg_c",
style: "default",
format: "tiles",
tileMatrixSetID: "c",
subdomains: ["t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7"],
tilingScheme: new Cesium.GeographicTilingScheme(),
tileMatrixLabels: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"],
maximumLevel: 50,
show: false
}))
this._viewer = viewer;
// 去除版权信息
this._viewer._cesiumWidget._creditContainer.style.display = "none";
},
/**
* 卷帘
*/
addJuanlian(){
let viewer = this._viewer;
let layers = viewer.imageryLayers;
if(this.anthorLayer){
layers.remove(this.anthorLayer)
}
//天地图token
let TDT_tk = "tdt_token";
//天地图影像
let TDT_IMG_C = "http://{s}.tianditu.gov.cn/img_c/wmts?service=wmts&request=GetTile&version=1.0.0" +
"&LAYER=img&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}" +
"&style=default&format=tiles&tk=" + TDT_tk;
this.anthorLayer = layers.addImageryProvider(new Cesium.WebMapTileServiceImageryProvider({
url: TDT_IMG_C,
layer: "tdtImg_c",
style: "default",
format: "tiles",
tileMatrixSetID: "c",
subdomains: ["t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7"],
tilingScheme: new Cesium.GeographicTilingScheme(),
tileMatrixLabels: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"],
maximumLevel: 50,
show: false
}));
let balckMarble = this.anthorLayer;
balckMarble.splitDirection = Cesium.ImagerySplitDirection.LEFT;
let slider = document.getElementById('juanlian');
slider.style.display = 'block';
viewer.scene.imagerySplitPosition = (slider.offsetLeft) / slider.parentElement.offsetWidth;
let handler = new Cesium.ScreenSpaceEventHandler(slider);
let moveActive = false;
function move(movement) {
if(!moveActive) {
return;
}
let relativeOffset = movement.endPosition.x ;
let splitPosition = (slider.offsetLeft + relativeOffset) / slider.parentElement.offsetWidth;
slider.style.left = 100.0 * splitPosition + '%';
viewer.scene.imagerySplitPosition = splitPosition;
}
handler.setInputAction(function() {
moveActive = true;
}, Cesium.ScreenSpaceEventType.LEFT_DOWN);
handler.setInputAction(function() {
moveActive = true;
}, Cesium.ScreenSpaceEventType.PINCH_START);
handler.setInputAction(move, Cesium.ScreenSpaceEventType.MOUSE_MOVE);
handler.setInputAction(move, Cesium.ScreenSpaceEventType.PINCH_MOVE);
handler.setInputAction(function() {
moveActive = false;
}, Cesium.ScreenSpaceEventType.LEFT_UP);
handler.setInputAction(function() {
moveActive = false;
}, Cesium.ScreenSpaceEventType.PINCH_END);
},
/**
* 移除卷帘
*/
removeJuanlian(){
let slider = document.getElementById('juanlian');
slider.style.display = 'none';
let layers = this._viewer.imageryLayers;
layers.remove(this.anthorLayer);
},
},
})
</script>
</body>
</html>
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
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
# 实现效果
