【发布时间】：2021-09-17 21:36:54
【问题描述】：
我一直在努力创建一个自定义地图，该地图将与默认地图重叠并提供更多信息。我创建了一个带有边界坐标的 GeoJSON 文件，如此 QGIS 屏幕截图所示：Custom North Nigeria on QGIS 但是当带上该 GeoJSON 文件并在带有多边形系列的实际地图上使用它时，它使用该多边形的“负”，即它假设这张地图是这个多边形之外的所有世界，而多边形的内部则为空Custom North Nigeria on AmCharts4（您可以在从 worldLow 系列加载的实际地图下方看到棕色。
这是我要导入的 GeoJSON。
var map = {
type: "Feature",
properties: { name: "North Nigeria", id: "NG-TEST" },
geometry: {
type: "MultiPolygon",
coordinates: [
[
[
[3.5873, 10.2659],
[3.6797, 10.1398],
[3.9833, 10.1398],
[4.3446, 9.7394],
[4.4541, 9.7023],
[4.4363, 9.4576],
[4.4531, 9.4279],
[4.5795, 9.4205],
[4.6298, 9.3315],
[4.6634, 9.2945],
[4.7222, 9.2574],
[4.7473, 9.1981],
[4.7724, 9.1461],
[4.806, 9.1165],
[5.0, 9.161],
[5.1515, 9.0942],
[5.2017, 9.0127],
[5.2438, 9.0052],
[5.3533, 8.9904],
[5.5217, 8.9608],
[5.6729, 8.8421],
[5.8242, 8.7457],
[6.1191, 8.7531],
[6.2957, 8.6864],
[6.4211, 8.4713],
[6.5638, 8.3527],
[6.6643, 8.2266],
[6.8082, 8.3823],
[6.7534, 9.2129],
[6.981, 9.2351],
[7.149, 9.1165],
[7.2932, 9.2796],
[7.4955, 9.2945],
[7.5633, 9.3538],
[7.6053, 9.3241],
[7.8072, 9.2574],
[7.9005, 9.3538],
[7.9761, 9.3167],
[8.0011, 9.2574],
[8.0931, 9.1461],
[8.0926, 9.0646],
[8.1515, 9.0497],
[8.2617, 9.1536],
[8.3964, 9.1239],
[8.4548, 9.0423],
[8.5728, 9.0423],
[8.6668, 9.2425],
[8.6673, 9.3167],
[8.6257, 9.3983],
[8.5337, 9.5021],
[8.56, 9.643],
[8.6288, 9.8432],
[8.6388, 10.0657],
[8.6651, 10.1918],
[8.7841, 10.3104],
[8.9275, 10.3104],
[8.9601, 10.1695],
[8.9843, 10.0212],
[8.9841, 9.9915],
[9.1446, 10.0286],
[9.2029, 9.9322],
[9.2277, 9.8655],
[9.1677, 9.7394],
[9.3016, 9.5985],
[9.5541, 9.5392],
[9.7483, 9.5837],
[9.7487, 9.6356],
[9.8335, 9.6949],
[9.8175, 9.8061],
[9.86, 9.8432],
[10.557, 9.5021],
[10.6333, 9.5466],
[10.7342, 9.5243],
[10.8951, 9.6059],
[11.0383, 9.5911],
[11.5696, 9.6059],
[11.9169, 9.7765],
[11.9449, 10.0434],
[12.1728, 10.0657],
[12.3692, 10.2882],
[12.6233, 10.3771],
[12.7086, 10.4587],
[12.7847, 10.4735],
[12.9715, 10.5699],
[13.1311, 10.5106],
[13.257, 10.4587],
[13.3425, 10.5477],
[13.4232, 10.9333],
[13.6935, 10.9481],
[13.7783, 10.9778],
[14.0519, 11.2299],
[14.3834, 11.3857],
[14.5877, 11.5043],
[14.6482, 11.5933],
[14.6102, 11.8825],
[14.6482, 12.1569],
[14.4818, 12.3275],
[14.2034, 12.3571],
[14.0703, 13.0394],
[13.6067, 13.6845],
[13.336, 13.6919],
[13.1732, 13.5733],
[13.0543, 13.5436],
[12.8582, 13.4546],
[12.8067, 13.4027],
[12.6703, 13.336],
[12.6103, 13.2841],
[12.5586, 13.2173],
[12.5069, 13.158],
[12.4638, 13.0987],
[11.8737, 13.2544],
[11.5535, 13.3508],
[11.2576, 13.3731],
[10.9782, 13.3657],
[10.6564, 13.3508],
[10.4866, 13.3063],
[10.2494, 13.2841],
[10.1986, 13.2767],
[9.9856, 13.1506],
[9.7633, 12.943],
[9.7032, 12.8614],
[9.5929, 12.8317],
[8.7647, 12.8985],
[8.5463, 13.0542],
[8.159, 13.247],
[7.8043, 13.3212],
[7.7282, 13.3286],
[7.4648, 13.2025],
[7.2269, 13.0913],
[7.0573, 13.0394],
[6.8463, 13.1061],
[6.6874, 13.336],
[6.275, 13.6474],
[5.5485, 13.8773],
[5.2433, 13.8254],
[4.8198, 13.7883],
[4.4552, 13.6919],
[4.302, 13.5436],
[4.2001, 13.4695],
[4.1238, 13.4546],
[3.9516, 12.8021],
[3.6377, 12.5425],
[3.618, 11.8306],
[3.4978, 11.2819],
[3.7083, 11.1261],
[3.7584, 10.9481],
[3.7579, 10.8073],
[3.8167, 10.7405],
[3.8416, 10.607],
[3.7145, 10.4661],
[3.5789, 10.2882],
[3.5873, 10.2659]
]
]
]
}
};
;
export default map;我正在使用它，因为我会使用任何其他提供的地图：
/*....*/
import nigeria from "./maps/countries/nigeriaNorth";
/*....*/
let countriesSeries = chart.series.push(new am4maps.MapPolygonSeries());
countriesSeries.useGeodata = true;
countriesSeries.geodata = nigeria;
/*....*/【问题讨论】：
标签： javascript geojson amcharts amcharts4