antv-l7/examples/heatmap/grid/demo/world.js

58 lines
1.1 KiB
JavaScript

import { Scene, HeatmapLayer } from '@antv/l7';
import { GaodeMap } from '@antv/l7-maps';
const scene = new Scene({
id: 'map',
map: new GaodeMap({
style: 'dark',
pitch: 0,
center: [ 110.097892, 33.853662 ],
zoom: 4.056
})
});
fetch(
'https://gw.alipayobjects.com/os/basement_prod/7359a5e9-3c5e-453f-b207-bc892fb23b84.csv'
)
.then(res => res.text())
.then(data => {
const layer = new HeatmapLayer({})
.source(data, {
parser: {
type: 'csv',
x: 'lng',
y: 'lat'
},
transforms: [
{
type: 'grid',
size: 10000,
field: 'v',
method: 'sum'
}
]
})
.size('count', value => {
return value * 0;
})
.shape('square')
.style({
coverage: 1,
angle: 0
})
.color(
'count',
[
'#FF3417',
'#FF7412',
'#FFB02A',
'#FFE754',
'#46F3FF',
'#02BEFF',
'#1A7AFF',
'#0A1FB2'
].reverse()
);
scene.addLayer(layer);
});