mirror of https://gitee.com/antv-l7/antv-l7
58 lines
1.4 KiB
TypeScript
58 lines
1.4 KiB
TypeScript
import { PolygonLayer, Scene } from '@antv/l7';
|
|
import { Map } from '@antv/l7-maps';
|
|
import React, { useEffect } from 'react';
|
|
import { useData, addLayers } from './useLine';
|
|
|
|
export default () => {
|
|
const { geoData } = useData();
|
|
|
|
useEffect(() => {
|
|
const scene = new Scene({
|
|
id: 'map',
|
|
map: new Map({
|
|
pitch: 0,
|
|
style: 'light',
|
|
center: [-96, 37.8],
|
|
zoom: 3,
|
|
}),
|
|
});
|
|
if (geoData) {
|
|
const layer = new PolygonLayer({})
|
|
.source(geoData.county, {
|
|
transforms: [
|
|
{
|
|
type: 'join',
|
|
sourceField: 'id',
|
|
targetField: 'id',
|
|
data: geoData.unemploymentdata,
|
|
},
|
|
],
|
|
})
|
|
.scale('rate', {
|
|
type: 'sequential', // he input domain and output range of a sequential scale always has exactly two elements, and the output range is typically specified as an interpolator rather than an array of values.
|
|
})
|
|
.shape('fill')
|
|
.color('rate', ['#ffffcc', '#253494'])
|
|
.style({
|
|
opacity: 1,
|
|
});
|
|
|
|
scene.addLayer(layer);
|
|
addLayers(geoData, scene, layer);
|
|
}
|
|
return () => {
|
|
scene.destroy();
|
|
};
|
|
}, [geoData]);
|
|
|
|
return (
|
|
<div
|
|
id="map"
|
|
style={{
|
|
height: '500px',
|
|
position: 'relative',
|
|
}}
|
|
/>
|
|
);
|
|
};
|