最寄りの道路

コレクションでコンテンツを整理 必要に応じて、コンテンツの保存と分類を行います。

Roads API は最大 100 個の独立した座標を取り、各地点の最も近い道路セグメントを返します。渡されるポイントは、連続したパスの一部である必要はありません。

連続した GPS ポイントを操作する場合は、道路にスナップします。

リクエスト

最も近い道路へのリクエストは、HTTPS で送信する必要があり、次の形式を使用します。

https://roads.googleapis.com/v1/nearestRoads?parameters&key=YOUR_API_KEY

Required parameters

  • points

    The path to be snapped. The path parameter accepts a list of latitude/longitude pairs. Latitude and longitude values should be separated by commas. Coordinates should be separated by the pipe character: "|". For example: path=60.170880,24.942795|60.170879,24.942796|60.170877,24.942796.

    Note: The snapping algorithm works best for points that are not too far apart. If you observe odd snapping behavior, try creating paths that have points closer together. To ensure the best snap-to-road quality, you should aim to provide paths on which consecutive pairs of points are within 300m of each other. This will also help in handling any isolated, long jumps between consecutive points caused by GPS signal loss, or noise.

Generated from the OpenAPI specification. Edit Report bug

次のリクエストでは、指定された座標リストに基づいて道路セグメントのセットを返します。

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'

JavaScript

var axios = require('axios');

var config = {
  method: 'get',
  url: 'https://roads.googleapis.com/v1/nearestRoads?points=60.170880%2C24.942795%7C60.170879%2C24.942796%7C60.170877%2C24.942796&key=YOUR_API_KEY',
  headers: { }
};

axios(config)
.then(function (response) {
  console.log(JSON.stringify(response.data));
})
.catch(function (error) {
  console.log(error);
});

Python

import requests

url = "https://roads.googleapis.com/v1/nearestRoads?points=60.170880%2C24.942795%7C60.170879%2C24.942796%7C60.170877%2C24.942796&key=YOUR_API_KEY"

payload={}
headers = {}

response = requests.request("GET", url, headers=headers, data=payload)

print(response.text)

Java

OkHttpClient client = new OkHttpClient().newBuilder()
  .build();
MediaType mediaType = MediaType.parse("text/plain");
RequestBody body = RequestBody.create(mediaType, "");
Request request = new Request.Builder()
  .url("https://roads.googleapis.com/v1/nearestRoads?points=60.170880%2C24.942795%7C60.170879%2C24.942796%7C60.170877%2C24.942796&key=YOUR_API_KEY")
  .method("GET", body)
  .build();
Response response = client.newCall(request).execute();

Ruby

require "uri"
require "net/http"

url = URI("https://roads.googleapis.com/v1/nearestRoads?points=60.170880%2C24.942795%7C60.170879%2C24.942796%7C60.170877%2C24.942796&key=YOUR_API_KEY")

https = Net::HTTP.new(url.host, url.port)
https.use_ssl = true

request = Net::HTTP::Get.new(url)

response = https.request(request)
puts response.read_body

Go

package main

import (
  "fmt"
  "net/http"
  "io/ioutil"
)

func main() {

  url := "https://roads.googleapis.com/v1/nearestRoads?points=60.170880,24.942795%7C60.170879,24.942796%7C60.170877,24.942796&key=YOUR_API_KEY"
  method := "GET"

  client := &http.Client {
  }
  req, err := http.NewRequest(method, url, nil)

  if err != nil {
    fmt.Println(err)
    return
  }
  res, err := client.Do(req)
  if err != nil {
    fmt.Println(err)
    return
  }
  defer res.Body.Close()

  body, err := ioutil.ReadAll(res.Body)
  if err != nil {
    fmt.Println(err)
    return
  }
  fmt.Println(string(body))
}

Postman

OpenAPI 仕様は、Postman コレクションとしても利用できます。

Postman で実行する

レスポンス

有効なリクエストごとに、Roads API はリクエスト URL 内に示された形式のレスポンスを返します。

{
  "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",
      },
    ],
}

レスポンスは次のスキーマを使用します。

NearestRoadsResponse

FieldRequiredTypeDescription
optional Array<SnappedPoint>

An array of snapped points.

See SnappedPoint for more information.

Generated from the OpenAPI specification. Edit Report bug

SnappedPoint

FieldRequiredTypeDescription
requiredLatitudeLongitudeLiteral See LatitudeLongitudeLiteral for more information.
requiredstring

A unique identifier for a place. All place IDs returned by the Roads API correspond to road segments.

optionalnumber

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, then it's possible that the response will contain more coordinates than the request. Interpolated values will not have an originalIndex. These values are indexed from 0, so a point with an originalIndex of 4 will be the snapped value of the 5th latitude/longitude passed to the path parameter.

Generated from the OpenAPI specification. Edit Report bug

LatitudeLongitudeLiteral

An object describing a specific location with Latitude and Longitude in decimal degrees.

FieldRequiredTypeDescription
requirednumber

Latitude in decimal degrees

requirednumber

Longitude in decimal degrees

Generated from the OpenAPI specification. Edit Report bug