mirror of https://gitee.com/antv-l7/antv-l7
101 lines
2.4 KiB
TypeScript
101 lines
2.4 KiB
TypeScript
import { PolygonLayer, Scene } from '@antv/l7';
|
|
import { Mapbox } from '@antv/l7-maps';
|
|
import * as dat from 'dat.gui';
|
|
import * as React from 'react';
|
|
|
|
function convertRGB2Hex(rgb: number[]) {
|
|
return (
|
|
'#' + rgb.map((r) => ('0' + Math.floor(r).toString(16)).slice(-2)).join('')
|
|
);
|
|
}
|
|
|
|
export default class Polygon extends React.Component {
|
|
private gui: dat.GUI;
|
|
private $stats: Node;
|
|
private scene: Scene;
|
|
|
|
public componentWillUnmount() {
|
|
if (this.gui) {
|
|
this.gui.destroy();
|
|
}
|
|
if (this.$stats) {
|
|
document.body.removeChild(this.$stats);
|
|
}
|
|
this.scene.destroy();
|
|
}
|
|
|
|
public async componentDidMount() {
|
|
const response = await fetch(
|
|
'https://gw.alipayobjects.com/os/basement_prod/d2e0e930-fd44-4fca-8872-c1037b0fee7b.json',
|
|
);
|
|
const scene = new Scene({
|
|
id: 'map',
|
|
map: new Mapbox({
|
|
style: 'mapbox://styles/mapbox/streets-v9',
|
|
center: [110.19382669582967, 50.258134],
|
|
pitch: 0,
|
|
zoom: 3,
|
|
}),
|
|
});
|
|
this.scene = scene;
|
|
const layer = new PolygonLayer({
|
|
enablePicking: false,
|
|
});
|
|
|
|
layer
|
|
.source(await response.json())
|
|
.size('name', [0, 10000, 50000, 30000, 100000])
|
|
.color('name', [
|
|
'#2E8AE6',
|
|
'#69D1AB',
|
|
'#DAF291',
|
|
'#FFD591',
|
|
'#FF7A45',
|
|
'#CF1D49',
|
|
])
|
|
.shape('fill')
|
|
.style({
|
|
opacity: 0.3,
|
|
});
|
|
scene.addLayer(layer);
|
|
scene.render();
|
|
/*** 运行时修改样式属性 ***/
|
|
const gui = new dat.GUI();
|
|
this.gui = gui;
|
|
const styleOptions = {
|
|
color: [0, 0, 0],
|
|
featureRange: {
|
|
startIndex: 0,
|
|
endIndex: Infinity,
|
|
},
|
|
};
|
|
const pointFolder = gui.addFolder('精确更新 feature');
|
|
pointFolder.add(styleOptions.featureRange, 'startIndex', 0, 100, 1);
|
|
pointFolder.add(styleOptions.featureRange, 'endIndex', 0, 100, 1);
|
|
pointFolder.addColor(styleOptions, 'color').onChange((color: number[]) => {
|
|
layer.color('name', [convertRGB2Hex(color)], {
|
|
featureRange: {
|
|
startIndex: styleOptions.featureRange.startIndex,
|
|
endIndex: styleOptions.featureRange.endIndex,
|
|
},
|
|
});
|
|
scene.render();
|
|
});
|
|
}
|
|
|
|
public render() {
|
|
return (
|
|
<div
|
|
id="map"
|
|
style={{
|
|
position: 'absolute',
|
|
top: 0,
|
|
left: 0,
|
|
right: 0,
|
|
bottom: 0,
|
|
}}
|
|
/>
|
|
);
|
|
}
|
|
}
|