antv-l7/examples/point/text/demo/temperture.js

104 lines
2.4 KiB
JavaScript

import { Scene, PointLayer, PolygonLayer, LineLayer } from '@antv/l7';
import { GaodeMap } from '@antv/l7-maps';
const scene = new Scene({
id: 'map',
map: new GaodeMap({
style: 'dark',
pitch: 40,
center: [ 118.8, 32.056 ],
zoom: 12.5
})
});
const fontFamily = 'iconfont';
const fontPath =
'//at.alicdn.com/t/font_2534097_x6rsov3i1g.woff2?t=1622107341225';
scene.addIconFont('icon', '');
scene.addFontFace(fontFamily, fontPath);
const colors = [
'#87CEFA',
'#00BFFF',
'#7FFFAA',
'#00FF7F',
'#32CD32',
'#F0E68C',
'#FFD700',
'#FF7F50',
'#FF6347',
'#FF0000'
];
scene.on('loaded', () => {
fetch('https://gw.alipayobjects.com/os/bmw-prod/94763191-2816-4c1a-8d0d-8bcf4181056a.json')
.then(res => res.json())
.then(data => {
const filllayer = new PolygonLayer({
name: 'fill',
zIndex: 3
})
.source(data)
.shape('fill')
.color('count', [ '#f2f0f7', '#dadaeb', '#bcbddc', '#9e9ac8', '#756bb1', '#54278f' ])
.style({
opacity: 0.6
});
scene.addLayer(filllayer);
const linelayer = new LineLayer({
zIndex: 5,
name: 'line2'
})
.source(data)
.shape('line')
.size(1)
.color('#fff')
.style({
opacity: 0.3
});
scene.addLayer(linelayer);
const pointLayer = new PointLayer({
zIndex: 10
})
.source(data)
.shape('icon', 'text')
.size(30)
.color('count', t => {
const c = Number(t.replace('℃', ''));
return colors[Math.floor(((c - 18) / 16) * 10)];
})
.style({
textAnchor: 'center', // 文本相对锚点的位置 center|left|right|top|bottom|top-left
textOffset: [ 30, 5 ],
padding: [ 2, 2 ],
fontFamily,
iconfont: true
// textAllowOverlap: true
});
scene.addLayer(pointLayer);
const tempertureLayer = new PointLayer({
zIndex: 10
})
.source(data)
.shape('count', 'text')
.size(12)
.color('count', t => {
const c = Number(t.replace('℃', ''));
return colors[Math.floor(((c - 18) / 16) * 10)];
})
.style({
textAnchor: 'center', // 文本相对锚点的位置 center|left|right|top|bottom|top-left
textOffset: [ 35, 30 ],
padding: [ 1, 1 ]
});
scene.addLayer(tempertureLayer);
});
});