使用 mapbox 或类似方向 api 在地点之间路由

Question

我有一个 geoJSON 对象，我想在我的 geoJSON 文件上的航点之间进行路由。

{
    "type":"FeatureCollection",
    "generator":"JOSM",
    "bbox":[
        23.4668,
        58.9198,
        23.6412,
        58.974
    ],
    "features":[

    {
            "type":"Feature",
            "properties":{
                "wheelchair":"yes",
                "smoothness":"bad",
                "surface":"crushed stones"
            },
            "geometry":{
                "type":"Point",
                "coordinates":[
                    23.53359252,
                    58.95034587858
                ]
            }
        },
        {
            "type":"Feature",
            "properties":{
                "wheelchair":"yes",
                "addr:housename":"Saue kohvik",
                "amenity":"pub",
                "name":"Saue kohvik"
            },
            "geometry":{
                "type":"Point",
                "coordinates":[
                    23.5361382,
                    58.9473236
                ]
            }
        },
         {
            "type":"Feature",
            "properties":{
                "wheelchair":"yes",
                "smoothness":"intermediate",
                "highway":"footway"
            },
            "geometry":{
                "type":"LineString",
                "coordinates":[
                    [
                        23.5410658,
                        58.9406213
                    ],
                    [
                        23.5410936,
                        58.9408252
                    ],
                    [
                        23.541092,
                        58.9408358
                    ],
                    [
                        23.5410706,
                        58.9410896
                    ],
                    [
                        23.5410448,
                        58.9412609
                    ],
                    [
                        23.541028,
                        58.9413309
                    ],
                    [
                        23.5409993,
                        58.9414512
                    ],
                    [
                        23.5408984,
                        58.9416477
                    ],
                    [
                        23.5408677,
                        58.9416962
                    ],
                    [
                        23.5407571,
                        58.9418706
                    ],
                    [
                        23.5405886,
                        58.9421204
                    ],
                    [
                        23.5405302,
                        58.9422071
                    ],
                    [
                        23.5403894,
                        58.9423888
                    ],
                    [
                        23.5401636,
                        58.9426413
                    ],
                    [
                        23.5400953,
                        58.9426593
                    ],
                    [
                        23.5399336,
                        58.9428447
                    ],
                    [
                        23.5399287,
                        58.9428504
                    ],
                    [
                        23.5399434,
                        58.9428895
                    ],
                    [
                        23.5394702,
                        58.9434341
                    ],
                    [
                        23.5394296,
                        58.943468
                    ],
                    [
                        23.5389324,
                        58.9439879
                    ],
                    [
                        23.5384256,
                        58.9445103
                    ],
                    [
                        23.5381597,
                        58.9447992
                    ],
                    [
                        23.5377425,
                        58.9452314
                    ],
                    [
                        23.5375449,
                        58.9454551
                    ]
                ]
            }
        },
         {
            "type":"Feature",
            "properties":{
                "wheelchair":"yes",
                "highway":"footway"
            },
            "geometry":{
                "type":"LineString",
                "coordinates":[
                    [
                        23.5408677,
                        58.9416962
                    ],
                    [
                        23.541045,
                        58.9417267
                    ],
                    [
                        23.5412157,
                        58.9417564
                    ]
                ]
            }
        }

        ]
}

我的问题是：我能否在文件中的位置之间路由“仅在属性为“轮椅”：“是”和“高速公路”：“人行道”的这些 LineStrings 上路由。并且路由不能使用 LineStrings，其中属性仅“高速公路”：“人行道”。

当我使用 mapbox 方向服务时可以吗？

我用我的自定义属性制作了自己的 openstreetmap，但我知道我被卡住了，我不知道如何在该地图中路由，因为路由只能调用一个属性所在的这些方式（线串和点）轮椅=“是”。

Answer 1

您可以使用L.mapbox.FeatureLayer 结合过滤器来呈现您的特征集合：

var featureLayer = L.mapbox.featureLayer('data.geo.json').addTo(map);

var filter = function (feature) {
  // Check if feature is a linestring
  if (feature.geometry.type == 'Linestring') {
    // Check if has property wheelchair and value is yes
    if (feature.properties.hasOwnProperty('wheelchair') &&
        feature.properties.wheelchair === 'yes') {
      // Check if has property highway and value is footway
      if (!feature.properties.hasOwnProperty('highway') || 
          feature.properties.highway === 'footway') {
          // highway absent or highway is footway
          return true;
      } else {
        // highway found and value is not footway
        return false;
      }
    } else {
      // Wheelchair absent or value isn't yes
      return false;
    }
  } else {
    // Not a linestring
    return true;
  }
}

featureLayer.on('ready', function () {
  featureLayer.setFilter(filter);
});

L.mapbox.featureLayer的参考：https://www.mapbox.com/mapbox.js/api/v2.1.5/l-mapbox-featurelayer/