/
index.html
133 lines (128 loc) · 4.11 KB
/
index.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
<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8' />
<title></title>
<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v0.41.0/mapbox-gl.js'></script>
<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.41.0/mapbox-gl.css' rel='stylesheet' />
<style>
body { margin:0; padding:0; }
#map { position:absolute; top:0; bottom:0; width:100%; }
</style>
</head>
<body>
<div id='map'></div>
<script>
mapboxgl.accessToken = '<your access token here>';
var map = new mapboxgl.Map({
container: 'map',
style: 'mapbox://styles/mapbox/dark-v9',
center: [-120, 50],
zoom: 2
});
map.on('load', function() {
//Add a geojson point source.
//Heatmap layers also work with a vector tile source.
map.addSource('earthquakes', {
"type": "geojson",
"data": "https://www.mapbox.com/mapbox-gl-js/assets/earthquakes.geojson"
});
map.addLayer({
"id": "earthquakes-heat",
"type": "heatmap",
"source": "earthquakes",
"maxzoom": 9,
"paint": {
//Increase the heatmap weight based on frequency and property magnitude
"heatmap-weight": {
"property": "mag",
"type": "exponential",
"stops": [
[0, 0],
[6, 1]
]
},
//Increase the heatmap color weight weight by zoom level
//heatmap-ntensity is a multiplier on top of heatmap-weight
"heatmap-intensity": {
"stops": [
[0, 1],
[9, 3]
]
},
//Color ramp for heatmap. Domain is 0 (low) to 1 (high).
//Begin color ramp at 0-stop with a 0-transparancy color
//to create a blur-like effect.
"heatmap-color": {
"stops": [
[0, "rgba(33,102,172,0)"],
[0.2, "rgb(103,169,207)"],
[0.4, "rgb(209,229,240)"],
[0.6, "rgb(253,219,199)"],
[0.8, "rgb(239,138,98)"],
[1, "rgb(178,24,43)"]
]
},
//Adjust the heatmap radius by zoom level
"heatmap-radius": {
"stops": [
[0, 2],
[9, 20]
]
},
//Transition from heatmap to circle layer by zoom level
"heatmap-opacity": {
"default": 1,
"stops": [
[7, 1],
[9, 0]
]
},
}
}, 'waterway-label');
map.addLayer({
"id": "earthquakes-point",
"type": "circle",
"source": "earthquakes",
"minzoom": 7,
"paint": {
//Size circle raidus by earthquake magnitude and zoom level
"circle-radius": {
"property": "mag",
"type": "exponential",
"stops": [
[{ zoom: 7, value: 1 }, 1],
[{ zoom: 7, value: 6 }, 4],
[{ zoom: 16, value: 1 }, 5],
[{ zoom: 16, value: 6 }, 50],
]
},
//Color circle by earthquake magnitude
"circle-color": {
"property": "mag",
"type": "exponential",
"stops": [
[1, "rgba(33,102,172,0)"],
[2, "rgb(103,169,207)"],
[3, "rgb(209,229,240)"],
[4, "rgb(253,219,199)"],
[5, "rgb(239,138,98)"],
[6, "rgb(178,24,43)"]
]
},
"circle-stroke-color": "white",
"circle-stroke-width": 1,
//Transition from heatmap to circle layer by zoom level
"circle-opacity": {
"stops": [
[7, 0],
[8, 1]
]
}
}
}, 'waterway-label');
});
</script>
</body>
</html>