import { Scene, PolygonLayer } from '@antv/l7';
import { Mapbox } from '@antv/l7-maps';

const scene = new Scene({
  id: 'map',
  map: new Mapbox({
    pitch: 0,
    style: 'light',
    center: [ -96, 37.8 ],
    zoom: 3
  })
});
scene.on('loaded', () => {
  fetch(
    'https://gw.alipayobjects.com/os/basement_prod/d36ad90e-3902-4742-b8a2-d93f7e5dafa2.json'
  )
    .then(res => res.json())
    .then(data => {
      const layer = new PolygonLayer({})
        .source(data)
        .color('blue')
        .shape('name', 'text')
        .size(18)
        .style({
          textAnchor: 'center', // 文本相对锚点的位置 center|left|right|top|bottom|top-left
          textOffset: [ 0, 0 ], // 文本相对锚点的偏移量 [水平, 垂直]
          spacing: 2, // 字符间距
          padding: [ 1, 1 ], // 文本包围盒 padding [水平，垂直]，影响碰撞检测结果，避免相邻文本靠的太近
          stroke: '#ffffff', // 描边颜色
          strokeWidth: 0.3, // 描边宽度
          strokeOpacity: 1.0
        });
      scene.addLayer(layer);
    });
});