This sample shows how to add an instance of a multidimensionalImageryTileLayer to a Map in a MapView
from a portalItem.
The ImageryTileLayer in this sample contains the soil moisture and soil temperature information at different altitudes as recorded between
10/22/2015 8:00:00 PM GMT-07:00 and 10/23/2015 11:00:00 AM GMT-07:00. The data was downloaded from NCEP Products Inventory.
How it works
When the application starts, an ImageryTileLayer is initialized with a multidimensionalSubset. The multidimensionalSubset
returns only the dimensional slices that meet the criteria. In this case, the soil temperature info will not be available at altitude of 3 meters. This means if user moves the altitude slider thumb to 3 meters
while soil temperature information is visible then nothing will be displayed on the map since this information is not available within the layer's multidimensionalSubset.
Users can choose to display the soil moisture or soil temperature variable in the Map by picking a variable name from the drop down list.
This will update the layer's multidimensionalDefinition to display the selected variable. Then, the statistics of the layer's renderer will be updated to match the variable's statistics.
Users can also visualize how soil moisture or temperature changes at different altitudes by moving the altitude slider thumb, or how it changes over time by playing the TimeSlider widget.
The following function runs whenever the altitude slider thumb is moved.
Use dark colors for code blocksCopy
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
// this function will be called as user adjusts the slider thumb to change the// altitude slider. Layer's stdZ dimension will be updated on the map to show the soil temp// or soil moisture at that altitude.functionupdateRenderer (dimensionName, sliderData) {
if (!sliderData || !layer.loaded) {
return;
}
// set the altitude or StdZ dimension of the layer corresponding to the slider's thumb locationconst multidimensionalDefinition = layer.multidimensionalDefinition;
// find the stdZ dimension definition from the layer's multidimensionalDefinitionconst depthDef = multidimensionalDefinition.find((def) => def.dimensionName === "StdZ");
if (dimensionName === "StdZ") {
// set the slider thumb to the first altitude found in the StdZ altitudeif (depthDef.values[0] === sliderData.value) {
return;
}
depthDef.values[0] = sliderData.value;
}
layer.multidimensionalDefinition = multidimensionalDefinition;
};