Suggestion: Geolocation with Altitude

Denis · March 4, 2022, 11:07am

Hey all,

since i’m very unfamiliar with coding.

I would like to suggest to implement the open-elevation api binded to the geolocation.

Maybe you like this idea?

Greetings!

Denis

github.com

Jorl17/open-elevation/blob/master/docs/api.md

# Public API Documentation

Open-Elevation's API is extremely simple -- after all, it fits a single, specific, simple task. There is **only one endpoint**, which is documented here.

## `GET /api/v1/lookup`

Returns ("looks up") the elevation at one or more `(latitude,longitude)` points.

The GET API is limited to **1024** bytes in the request line. If you plan on making large requests, consider using the POST api.

### Parameters:

* **`locations`**: List of locations, separated by `|` in `latitude, longitude` format, similar to the Google Elevation API.

### Response format

A JSON object with a single list of results, in the `results` field is returned. Each result contains `latitude`, `longitude` and `elevation`. The results are in the same order as the request parameters. **Elevation is in meters**.

If there is no recorded elevation at the provided coordinate, sea level (0 meters) is returned.

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Don · March 7, 2022, 9:38am

You could do this by creating an HTTP agent to connect to the API (use the URL and correct headers to set up the connection). And then add an attribute with agent link for elevation on the asset you want it for. I’ve tried it out myself and it works fine, however automatically using the location that is already set for that asset is giving me some trouble.
I tried doing it using an asset link and filtering out just the coordinates and then use that pushed value in the query parameters of the agent link in ‘elevation’. No luck yet so Rich is going to give me some pointers later this week
Anyway, if you are ok with inputting the attributes by hand for now, the agent link configuration item of the ‘elevation’ attribute should look like this:

Make sure to check the logs (top right menu) if it doesn’t seem to work.

Denis · March 7, 2022, 9:57am

Hey Don,

Thanks for reply!

yes, manually it works fine.

My intention is, to get the elevation over ground of an asset by the geo location.

For Example: I got a BME180 Sensor, it meassure the pressure, and when i got the exact sealevel pressure, i can figure out the elevation of an asset.

Asset = 190m over Sealevel (by BME)
Geolocation Elevation: 186m

So the Asset have to be 4 meters over ground.

So i have to link the query parameters to the geo locations and switch the longtiude and latiude and that doesn’t work