转换 mapbox 使用 GeoJSON 源将多边形添加到地图以做出反应答案

【问题标题】：Convert mapbox Add a polygon to a map using a GeoJSON source to react转换 mapbox 使用 GeoJSON 源将多边形添加到地图以做出反应
【发布时间】：2021-09-19 22:58:51
【问题描述】：

我有以下 Mapbox 代码，它在 HTML 文件中工作，它使用 Mapbox 显示一组坐标的多边形。我在将其转换为反应代码并使其以相同的方式工作时遇到问题。

您可以复制代码并将其放入 HTML 文件中并查看输出。我只需要一个显示系统相同输出的反应组件 sn-p 代码。非常感谢。

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Add a polygon to a map using a GeoJSON source</title>
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
<link href="https://api.mapbox.com/mapbox-gl-js/v2.4.1/mapbox-gl.css" rel="stylesheet">
<script src="https://api.mapbox.com/mapbox-gl-js/v2.4.1/mapbox-gl.js"></script>
<style>
body { margin: 0; padding: 0; }
#map { position: absolute; top: 0; bottom: 0; width: 100%; }
</style>
</head>
<body>
<div id="map"></div>
<script>
    mapboxgl.accessToken = 'pk.eyJ1IjoiZW1tYW51ZWxud2Fub2NoaWUiLCJhIjoiY2t0bGozd2YwMDJpcjJ1czh2aHVscmk1eCJ9.XlprBONdRkZdwS4NYdKbGw';
    const map = new mapboxgl.Map({
        container: 'map', // container ID
        style: 'mapbox://styles/mapbox/light-v10', // style URL
        center: [-68.137343, 45.137451], // starting position
        zoom: 5 // starting zoom
    });

    map.on('load', () => {
        // Add a data source containing GeoJSON data.
        map.addSource('maine', {
            'type': 'geojson',
            'data': {
                'type': 'Feature',
                'geometry': {
                    'type': 'Polygon',
                    // These coordinates outline Maine.
                    'coordinates': [
                        [
                            [-67.13734, 45.13745],
                            [-66.96466, 44.8097],
                            [-68.03252, 44.3252],
                            [-69.06, 43.98],
                            [-70.11617, 43.68405],
                            [-70.64573, 43.09008],
                            [-70.75102, 43.08003],
                            [-70.79761, 43.21973],
                            [-70.98176, 43.36789],
                            [-70.94416, 43.46633],
                            [-71.08482, 45.30524],
                            [-70.66002, 45.46022],
                            [-70.30495, 45.91479],
                            [-70.00014, 46.69317],
                            [-69.23708, 47.44777],
                            [-68.90478, 47.18479],
                            [-68.2343, 47.35462],
                            [-67.79035, 47.06624],
                            [-67.79141, 45.70258],
                            [-67.13734, 45.13745]
                        ]
                    ]
                }
            }
        });

        // Add a new layer to visualize the polygon.
        map.addLayer({
            'id': 'maine',
            'type': 'fill',
            'source': 'maine', // reference the data source
            'layout': {},
            'paint': {
                'fill-color': '#0080ff', // blue color fill
                'fill-opacity': 0.5
            }
        });
        // Add a black outline around the polygon.
        map.addLayer({
            'id': 'outline',
            'type': 'line',
            'source': 'maine',
            'layout': {},
            'paint': {
                'line-color': '#000',
                'line-width': 3
            }
        });
    });
</script>

</body>
</html>

【问题讨论】：

标签： html reactjs mapbox mapbox-gl mapbox-marker

【解决方案1】：

我想通了。使用 react-mapbox-gl 包

import MapGL, { Source, Layer } from "@urbica/react-map-gl";
import "mapbox-gl/dist/mapbox-gl.css";

export default function App() {
  const [viewport, setViewport] = useState({
    latitude: 45.137451890638886,
    longitude: -68.13734351262877,
    zoom: 5,
  });

  const data = {
    type: "Feature",
    geometry: {
      type: "Polygon",
      coordinates: [
        [
          [-67.13734, 45.13745],
          [-66.96466, 44.8097],
          [-68.03252, 44.3252],
          [-69.06, 43.98],
          [-70.11617, 43.68405],
          [-70.64573, 43.09008],
          [-70.75102, 43.08003],
          [-70.79761, 43.21973],
          [-70.98176, 43.36789],
          [-70.94416, 43.46633],
          [-71.08482, 45.30524],
          [-70.66002, 45.46022],
          [-70.30495, 45.91479],
          [-70.00014, 46.69317],
          [-69.23708, 47.44777],
          [-68.90478, 47.18479],
          [-68.2343, 47.35462],
          [-67.79035, 47.06624],
          [-67.79141, 45.70258],
          [-67.13734, 45.13745],
        ],
      ],
    },
  };

  return (
    <MapGL
      style={{ width: "100%", height: "400px" }}
      mapStyle="mapbox://styles/mapbox/light-v9"
      accessToken={
        "pk.eyJ1IjoiZW1tYW51ZWxud2Fub2NoaWUiLCJhIjoiY2t0bGozd2YwMDJpcjJ1czh2aHVscmk1eCJ9.XlprBONdRkZdwS4NYdKbGw"
      }
      onViewportChange={setViewport}
      {...viewport}
    >
      <Source id="maine" type="geojson" data={data} />
      <Layer
        id="maine"
        type="fill"
        source="maine"
        paint={{
          "fill-color": "red",
          "fill-opacity": 0.8,
        }}
      />
    </MapGL>
  );
}

【讨论】：