Question

使用的PDE查询：

https://pde.api.here.com/1/tile.json?app_id=***&app_code=***&layer=LINK_ATTRIBUTE_FC1&level=9&tilex=537&tiley=399

返回的行列表，每个行的后继 LINK_ID ，但不表示GPS。如何将 lat / lon 转换为 link_id 或将 link_id 转换为 lat / lon

响应示例：

{
    Rows: [{
        LINK_ID: "52493206",
        ISO_COUNTRY_CODE: "DEU",
        VEHICLE_TYPES: "1007",
        URBAN: "N",
        TRANSPORT_VERIFIED: "Y",
        FUNCTIONAL_CLASS: "1",
        CONTROLLED_ACCESS: "Y",
        LIMITED_ACCESS_ROAD: "Y",
        TRAVEL_DIRECTION: "F",
        BOAT_FERRY: "N",
        RAIL_FERRY: "N",
        MULTI_DIGITIZED: "Y",
        DIVIDER: "N",
        DIVIDER_LEGAL: "N",
        FRONTAGE: "N",
        PAVED: "Y",
        RAMP: "N",
        PRIVATE: "N",
        POI_ACCESS: "N",
        INTERSECTION_CATEGORY: null,
        SPEED_CATEGORY: "1",
        LANE_CATEGORY: "2",
        COVERAGE_INDICATOR: "N0",
        TO_REF_NUM_LANES: null,
        FROM_REF_NUM_LANES: "2",
        PHYSICAL_NUM_LANES: null,
        LOW_MOBILITY: "3",
        PUBLIC_ACCESS: "Y",
        GRADE_CATEGORY: null,
        ROUTE_TYPES: "3",
        OVERPASS_UNDERPASS: null
    }, {
        LINK_ID: "52493207",
        ...
    }]

Answer 1

您可以在ROAD_GEOM层上的PDE中获取它们

Answer 2

此外：要请求可能的图层，可以使用以下请求： https://pde.api.here.com/1/doc/layers.json?app_id=yyy&app_code=xxxx

ROAD_GEOM_FC1可以覆盖您的示例：

https://pde.cit.api.here.com/1/tiles.json?layers=ROAD_GEOM_FC1,ROAD_GEOM_FC1&levels=9,9&tilexy=537,399,538,399&app_id=yyy&app_code=xxx

"Tiles": [{
"Rows": [{
  "LINK_ID": "52493206",
  "LONG_HAUL": "Y",
  "NAME": "A45",
  "NAMES": "ENGBNA45",
  "TUNNEL": "N",
  "BRIDGE": "Y",
  "LAT": "5028847,19,112",
  "LON": "896815,-14,-80",
  "ZLEVEL": ",1,"
}, {
  "LINK_ID": "52493207",
  "LONG_HAUL": "Y",.....

如何获取从PDE返回的LINK_ID的gps坐标

2 个答案: