here-api - Here Maps Link Idのジオメトリ/形状を見つける方法

Question

Here Maps リンク ID のリストがあります。それらの形状を取得したい。以下のように、waypoint0 と waypoint1 に単一の link_id を渡して、v7 calculateroute REST API を呼び出してみました。

https://route.ls.hereapi.com/routing/7.2/calculateroute.json?apiKey={API_KEY}&mode=fastest;car&waypoint0=link!-893783351&waypoint1=link!-893783351&routeAttributes=notes&linkAttributes=shape,speedLimit

{
    "response": {
        "metaInfo": {
            "timestamp": "2021-09-28T04:03:39Z",
            "mapVersion": "8.30.124.155",
            "moduleVersion": "7.2.202138-9419",
            "interfaceVersion": "2.6.77",
            "availableMapVersion": [
                "8.30.124.155"
            ]
        },
        "route": [
            {
                "waypoint": [
                    {
                        "linkId": "+893783351",
                        "mappedPosition": {
                            "latitude": 26.711034,
                            "longitude": -80.1374786
                        },
                        "originalPosition": {
                            "latitude": 26.711034,
                            "longitude": -80.1374786
                        },
                        "type": "stopOver",
                        "spot": 0.4929245,
                        "sideOfStreet": "neither",
                        "mappedRoadName": "",
                        "label": "",
                        "shapeIndex": 0,
                        "source": "user"
                    },
                    {
                        "linkId": "+893783351",
                        "mappedPosition": {
                            "latitude": 26.711034,
                            "longitude": -80.1374786
                        },
                        "originalPosition": {
                            "latitude": 26.711034,
                            "longitude": -80.1374786
                        },
                        "type": "stopOver",
                        "spot": 0.4929245,
                        "sideOfStreet": "neither",
                        "mappedRoadName": "",
                        "label": "",
                        "shapeIndex": 1,
                        "source": "user"
                    }
                ],
                "mode": {
                    "type": "fastest",
                    "transportModes": [
                        "car"
                    ],
                    "trafficMode": "disabled",
                    "feature": []
                },
                "shape": [
                    "26.711034,-80.1374786",
                    "26.711034,-80.1374786"
                ],
                "leg": [
                    {
                        "start": {
                            "linkId": "+893783351",
                            "mappedPosition": {
                                "latitude": 26.711034,
                                "longitude": -80.1374786
                            },
                            "originalPosition": {
                                "latitude": 26.711034,
                                "longitude": -80.1374786
                            },
                            "type": "stopOver",
                            "spot": 0.4929245,
                            "sideOfStreet": "neither",
                            "mappedRoadName": "",
                            "label": "",
                            "shapeIndex": 0,
                            "source": "user"
                        },
                        "end": {
                            "linkId": "+893783351",
                            "mappedPosition": {
                                "latitude": 26.711034,
                                "longitude": -80.1374786
                            },
                            "originalPosition": {
                                "latitude": 26.711034,
                                "longitude": -80.1374786
                            },
                            "type": "stopOver",
                            "spot": 0.4929245,
                            "sideOfStreet": "neither",
                            "mappedRoadName": "",
                            "label": "",
                            "shapeIndex": 1,
                            "source": "user"
                        },
                        "length": 0,
                        "travelTime": 0,
                        "maneuver": [
                            {
                                "position": {
                                    "latitude": 26.711034,
                                    "longitude": -80.1374786
                                },
                                "instruction": "Take ramp.",
                                "travelTime": 0,
                                "length": 0,
                                "id": "M1",
                                "_type": "PrivateTransportManeuverType"
                            },
                            {
                                "position": {
                                    "latitude": 26.711034,
                                    "longitude": -80.1374786
                                },
                                "instruction": "Arrive at your destination.",
                                "travelTime": 0,
                                "length": 0,
                                "id": "M2",
                                "_type": "PrivateTransportManeuverType"
                            }
                        ]
                    }
                ],
                "note": [
                    {
                        "type": "violation",
                        "code": "routingOptionViolated",
                        "text": "startDirection"
                    }
                ],
                "summary": {
                    "distance": 0,
                    "trafficTime": 0,
                    "baseTime": 0,
                    "flags": [
                        "tollroad"
                    ],
                    "text": "The trip takes <span class=\"length\">0 m</span> and less than <span class=\"time\">1 min</span>.",
                    "travelTime": 0,
                    "_type": "RouteSummaryType"
                }
            }
        ],
        "language": "en-us"
    }
}

ただし、開発者ガイドでは、パラメーター「linkAttributes」を使用してリンクの形状を取得できると述べていますが、応答で返される形状はリンクの形状ではないようです。

ここで何か間違ったことをしている場合は、アドバイスしてください。また、別の API を使用してリンクの形状を取得できる場合。

link_id ごとに API 呼び出しを行うことに問題はありません。