1
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{
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2
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"$schema": "https://vega.github.io/schema/vega/v5.json",
|
3
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"width": 1200,
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4
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"height": 200,
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5
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"padding": 5,
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6
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|
7
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"data": [
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8
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{
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9
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"name": "table",
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10
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"url": "data.json",
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11
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"transform": [
|
12
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{
|
13
|
"type": "formula",
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14
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"expr": "toDate(datum[\"time_stamp\"])",
|
15
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"as": "dateTime"
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16
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}
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17
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]
|
18
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}
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19
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],
|
20
|
|
21
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"scales": [
|
22
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{
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23
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"name": "xscale",
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24
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"type": "time",
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25
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"domain": {"data": "table", "field": "dateTime"},
|
26
|
"range": "width"
|
27
|
},
|
28
|
{
|
29
|
"name": "yscale",
|
30
|
"type": "linear",
|
31
|
"domain": {"data": "table", "field": "sensors[0].value"},
|
32
|
"nice": true,
|
33
|
"range": "height"
|
34
|
}
|
35
|
],
|
36
|
|
37
|
"axes": [
|
38
|
{ "orient": "bottom", "scale": "xscale", "tickCount": 3 },
|
39
|
{ "orient": "left", "scale": "yscale" }
|
40
|
],
|
41
|
|
42
|
"marks": [
|
43
|
{
|
44
|
"type": "symbol",
|
45
|
"from": {"data":"table"},
|
46
|
"encode": {
|
47
|
"enter": {
|
48
|
"shape": {"value": "circle"},
|
49
|
"size": {"value": 10},
|
50
|
"x": {"scale": "xscale", "field": "dateTime"},
|
51
|
"y": {"scale": "yscale", "field": "sensors[0].value"},
|
52
|
"color": {"value": "both"},
|
53
|
"strokeWidth": {"value": 1}
|
54
|
}
|
55
|
}
|
56
|
}
|
57
|
]
|
58
|
|
59
|
|
60
|
|
61
|
}
|