Question

我正在尝试做的事情：

我有一个家庭收入在美国的县的GEOJSON文件。每个县看起来像这样：

{
  "type": "Feature",
  "properties": {
    "GEO_ID": "0500000US28137",
    "STATE": "MS",
    "COUNTY": "137",
    "NAME": "Tate",
    "LSAD": "County",
    "CENSUSAREA": 404.759,
    "Income": 77000
  },
  "geometry": {
    "type": "Polygon",
    "coordinates": [
      [
        [
          -90.200199,
          34.724418
        ],
        [
          -90.128906,
          34.760537
        ],
        [
          -90.030051,
          34.70795
        ],
        [
          -89.912202,
          34.772506
        ],
        [
          -89.723635,
          34.772121
        ],
        [
          -89.722333,
          34.685504
        ],
        [
          -89.66916,
          34.685786
        ],
        [
          -89.668448,
          34.554367
        ],
        [
          -89.721341,
          34.554274
        ],
        [
          -90.198631,
          34.554425
        ],
        [
          -90.239971,
          34.626237
        ],
        [
          -90.200199,
          34.724418
        ]
      ]
    ]
  }
}

我还有另一个GEOJSON，其中包含独特主题的详细信息。目的是使主题的地址与县列表匹配，以查看该主题所属的县。然后，将来自县GEOJSON的“收入”传递给主题。 GEOJSON中的每个主题如下：

{
  "type": "Feature",
  "id": 1,
  "geometry": {
    "type": "Point",
    "coordinates": [
      -95.980577,
      41.287989
    ]
  },
  "properties": {
    "CommunityPartner": "Abide Omaha",
    "Address": "3223 N 45th St",
    "City": "Omaha",
    "State": "NE",
    "Zip": "68104",
    "Location": "Omaha, NE",
    "Latitude": 41.287989,
    "Longitude": -95.980577,
    "PhoneNumber": "402-455-7807",
    "Website": "www.abideomaha.org",
    "PrimaryMissionFocus": "Social Justice",
    "SecondaryMissionFocus": "Economic Sufficiency",
    "WeitzCECPartner": "No",
    "Enteredby": "Service Learning Academy",
    "Notes": "",
    "semester": [
      "Spring 2018"
    ],
    "time": "Spring 2018"
  }
}

我的代码如下：

var counties = [];
var countyData = "";
$.get("static/GEOJSON/USCounties_2.geojson", function(data) { //load JSON file from static/GEOJSON
    countyData = jQuery.parseJSON(data);
    var features=countyData["features"];
    features.forEach(function(feature){
        counties.push({
            "county": feature.properties["NAME"], "coordinates": feature.geometry.coordinates,
            "Income": feature.properties["Income"]
        })
    })
});

var communityData = "";
var referencedincome = 0;
$.get("static/GEOJSON/CommunityPartners.geojson", function(data) { //load JSON file from static/GEOJSON
    communityData = jQuery.parseJSON(data);
    var features=communityData["features"];
    features.forEach(function(feature){
        if (feature.geometry !== null) {
            var point = feature.geometry.coordinates;
            point = turf.point(point); 
            for (var i = 0; i < counties.length; i++){
                var coord = counties[i].coordinates;
                var countycoord = turf.polygon(coord);
                if (turf.booleanPointInPolygon(point,countycoord)){ //use Turf js to determine if a point is in a polygon or not
                    referencedincome = counties[i]["Income"]
                }
            }
        }
        feature.properties["income"] = referencedincome;
    });
});

我现在所拥有的看起来像这样。查看弹出窗口中的“家庭收入”行。它仍然为0。显然，“ counties”数组为空，即使我的代码没有收到任何错误。

我已经尝试了几个小时来修复它，但是没有成功。如果您有任何建议，将不胜感激。谢谢！

Javascript-从GEOJSON功能创建数组

0 个答案: