Roads API usa hasta 100 coordenadas independientes y muestra el segmento de ruta más cercano para cada punto. No es necesario que los puntos pasados formen parte de una ruta continua.
Si estás trabajando con puntos de GPS secuenciales, usa Snap to Roads.
Solicitudes
Una solicitud de ruta más cercana se debe enviar a través de HTTPS y toma la siguiente forma:
https://roads.googleapis.com/v1/nearestRoads?parameters&key=YOUR_API_KEY
Required parameters
points
The points to be snapped. The points parameter accepts a list of latitude/longitude pairs. Separate latitude and longitude values with commas. Separate coordinates with the pipe character: "|". For example:
points=60.170880,24.942795|60.170879,24.942796|60.170877,24.942796.
Ejemplos
La siguiente solicitud muestra un conjunto de tramos de ruta según la lista de coordenadas especificada.
URL
https://roads.googleapis.com/v1/nearestRoads ?points=60.170880%2C24.942795%7C60.170879%2C24.942796%7C60.170877%2C24.942796 &key=YOUR_API_KEY
cURL
curl -L -X GET 'https://roads.googleapis.com/v1/nearestRoads?points=60.170880%2C24.942795%7C60.170879%2C24.942796%7C60.170877%2C24.942796&key=YOUR_API_KEY'
Respuestas
Para cada solicitud válida, Roads API mostrará una respuesta en el formato indicado en la URL de la solicitud.
{
"snappedPoints":
[
{
"location":
{ "latitude": 60.170878428876755, "longitude": 24.94269540970182 },
"originalIndex": 0,
"placeId": "ChIJfVFHrM0LkkYRBzUQos_jR5w",
},
{
"location":
{ "latitude": 60.17087741412199, "longitude": 24.942695474405202 },
"originalIndex": 1,
"placeId": "ChIJfVFHrM0LkkYRBzUQos_jR5w",
},
{
"location":
{ "latitude": 60.170875416131736, "longitude": 24.942695601802203 },
"originalIndex": 2,
"placeId": "ChIJfVFHrM0LkkYRBzUQos_jR5w",
},
],
}
En la respuesta, se usa el siguiente esquema.
NearestRoadsResponse
| Field | Required | Type | Description |
|---|---|---|---|
| optional | Array<SnappedPoint> | An array of snapped points. Sometimes containing several snapped points for the same point with differing placeId or location. See SnappedPoint for more information. |
SnappedPoint
| Field | Required | Type | Description |
|---|---|---|---|
| required | LatitudeLongitudeLiteral | See LatitudeLongitudeLiteral for more information. |
| required | string | A unique identifier for a place. All place IDs returned by the Roads API correspond to road segments. |
| optional | number |
An integer that indicates the corresponding value in the original
request. Each value in the request should map to a snapped value in
the response. However, if you've set interpolate=true or if you're
using nearest roads, then it's possible that the response will
contain more coordinates than the request. Interpolated values will
not have an |
LatitudeLongitudeLiteral
An object describing a specific location with Latitude and Longitude in decimal degrees.
| Field | Required | Type | Description |
|---|---|---|---|
| required | number | Latitude in decimal degrees |
| required | number | Longitude in decimal degrees |