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我正在尝试使用turf.js返回多边形内的点，但turf.within()即使对于我知道在多边形内的点也会生成一个空特征列表 - turf.inside() 对于相同的点和多边形返回 true . 我在下面提供一个例子。我可以在 turf.within() 成功运行该示例，但我不确定我的几何图形是什么问题。

<script type="text/javascript" src="https://npmcdn.com/@turf/turf/turf.min.js"></script>

……

var thePoint = [-118.049551, 33.866965]

var test = {
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": thePoint
      }
    }, {
      "type": "Feature",
      "properties": {},
      "geometry": {
        "type": "Point",
        "coordinates": thePoint
      }
    }
  ]
};

var cerrito = { "type": "Feature", "properties": { "GEO_ID":    "1600000US0612552", "STATE": "06", "PLACE": "12552", "NAME": "Cerritos", "LSAD": "city", "CENSUSAREA": 8.725, "Shape_STAr": 246572616.215, "Shape_STLe": 118080.76087 }, "geometry": { "type": "MultiPolygon", "coordinates": [ [ [ [ -118.028887999836968, 33.882629000032836 ], [ -118.028681155924062, 33.873316057140322 ], [ -118.028772420533898, 33.873315497179512 ], [ -118.028772240680681, 33.873285861714471 ], [ -118.028761755934283, 33.872110544548683 ], [ -118.028717388339928, 33.866241889545748 ], [ -118.028792999919617, 33.866240999737094 ], [ -118.035119980483032, 33.866020314132811 ], [ -118.035591866241305, 33.866016576824734 ], [ -118.035818357122793, 33.866015383719059 ], [ -118.035983055259194, 33.866014509762415 ], [ -118.036147752309518, 33.8660136310734 ], [ -118.036148847050185, 33.866013630744973 ], [ -118.037598000415159, 33.866012999764315 ], [ -118.037597881676277, 33.866006075268416 ], [ 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var cerritoPolygon = turf.polygon(cerrito.geometry.coordinates[0]) //turn cerrito coordinates into polygon

var cerritoFeatureCollection = turf.featureCollection(cerrito) //create a feature collection

var ptsWithin = turf.within(test, cerritoFeatureCollection); //see if test points are within the cerrito featureCollection

var pt = turf.point(thePoint);

var isInside = turf.inside(pt, cerritoPolygon);

console.log(ptsWithin)//returns a featureCollection with an empty features array
console.log(isInside)//returns true - thePoint is in the cerrito polygon
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