antv-l7/examples/point/chart/demo/chart.js

92 lines
2.4 KiB
JavaScript

import { Scene } from '@l7/scene';
import { Marker, Popup } from '@l7/component'
import * as G2 from '@antv/g2'
const scene = new Scene({
id: 'map',
type: 'mapbox',
style: 'light',
center: [122.80009283836715, 37.05881309947238],
pitch: 0,
zoom: 2
});
scene.on('loaded',()=>{
addChart();
})
function addChart() {
fetch('https://gw.alipayobjects.com/os/basement_prod/0b96cca4-7e83-449a-93d0-2a77053e74ab.json')
.then((res) => res.json())
.then((data) => {
data.nodes.forEach(function (item) {
const el = document.createElement('div');
const total = item.gdp.Agriculture + item.gdp.Industry + item.gdp.Service;
const size = Math.min(parseInt(total / 30000), 70);
if(size< 30) {
return
}
console.log(total);
const itemData = [{
item: 'Agriculture',
count: item.gdp.Agriculture,
percent: item.gdp.Agriculture / total
}, {
item: 'Industry',
count: item.gdp.Industry,
percent: item.gdp.Industry / total
}, {
item: 'Service',
count: item.gdp.Service,
percent: item.gdp.Service / total
}];
var sliceNumber = 0.02;
// 自定义 other 的图形,增加两条线
G2.Shape.registerShape('interval', 'sliceShape', {
draw: function draw(cfg, container) {
var points = cfg.points;
var path = [];
path.push(['M', points[0].x, points[0].y]);
path.push(['L', points[1].x, points[1].y - sliceNumber]);
path.push(['L', points[2].x, points[2].y - sliceNumber]);
path.push(['L', points[3].x, points[3].y]);
path.push('Z');
path = this.parsePath(path);
return container.addShape('path', {
attrs: {
fill: cfg.color,
path: path
}
});
}
});
var chart = new G2.Chart({
container: el,
width: size,
height: size,
render: 'svg',
padding: 0,
});
chart.legend(false);
chart.source(itemData);
chart.coord('theta', {
innerRadius: 0.75
});
chart.tooltip(false);
chart.intervalStack().position('percent').color('item',['#5CCEA1','#5D7092','#5B8FF9']).shape('sliceShape');
chart.render();
new Marker({
element: el
}).setLnglat({
lng:item.coordinates[0],
lat:item.coordinates[1]
}).addTo(scene);
});
});
}