tutorial/layer/layer-highlight

Example page

import { LineLayer, PolygonLayer, Scene } from '@antv/l7';
import { GaodeMap } from '@antv/l7-maps';
const scene = new Scene({
  id: 'map',
  map: new GaodeMap({
    style: 'light',
    center: [118.7368, 32.056],
    zoom: 9,
  }),
});
scene.on('loaded', () => {
  fetch('https://gw.alipayobjects.com/os/basement_prod/91247d10-585b-4406-b1e2-93b001e3a0e4.json')
    .then((res) => res.json())
    .then((data) => {
      const filllayer = new PolygonLayer({
        name: 'fill',
      })
        .source(data)
        .shape('fill')
        .color('unit_price', ['#f0f9e8', '#ccebc5', '#a8ddb5', '#7bccc4', '#43a2ca', '#0868ac']);
      const linelayer = new LineLayer({
        zIndex: 1,
        name: 'line',
      })
        .source(data)
        .shape('line')
        .size(0.5)
        .color('#fff')
        .style({
          opacity: 0.5,
        });
      const hightLayer = new LineLayer({
        zIndex: 4, // 设置显示层级
        name: 'hightlight',
      })
        .source({
          type: 'FeatureCollection',
          features: [],
        })
        .shape('line')
        .size(2)
        .color('red');
      scene.addLayer(filllayer);
      scene.addLayer(linelayer);
      scene.addLayer(hightLayer);
      filllayer.on('click', (feature) => {
        console.log(feature);
        hightLayer.setData({
          type: 'FeatureCollection',
          features: [feature.feature],
        });
      });
    });
});