How to get altitude from lat and long in local?

[madenburak]

I want to lat, long and altitude values in a table or text. How I access this data? I tried local installation without docker but I got error at api.py. Which method should I follow?

[ajnisbet]

I highly recommend running in docker if possible: it solves a lot of issues with difficult geospatial dependencies.

Otherwise here are the instructions to follow: https://www.opentopodata.org/notes/running-without-docker/

To help you more please share

• Which version of opentopodata you are using (or when you downloaded it)
• What operating system you are using (eg Windows 10)
• What you tried (ideally the exact commands you used)
• What error you are getting (paste the output or a screenshot)

[madenburak]

• opentopodata 1.8.3

• Ubuntu

• I tried minimal installation in running-without-docker. I used this command FLASK_APP=opentopodata/api.py DISABLE_MEMCACHE=1 flask run --port 5000 after installation steps.

• I got this output:

  * Serving Flask app "opentopodata/api.py"
  * Environment: production
  WARNING: This is a development server. Do not use it in a production deployment.
  Use a production WSGI server instead.
  * Debug mode: off
  * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)

• When I clicked the link, It gave error to me. {"error":"No dataset name provided. Try a url like '/v1/test-dataset?locations=-10,120' to get started, and see https://www.opentopodata.org for full documentation.","status":"INVALID_REQUEST"}

[ajnisbet]

Thanks for this info!

opentopodata is software for turning an elevation dataset into an API. As well as running the software, you'll need to supply an elevation dataset: there are instructions under the "Datasets" tab for how to download and install some common elevation datasets: https://www.opentopodata.org/ if you're not sure which dataset you need to use, the mapzen one is a good start.

If you just need small amounts of data, I also host a free public api at api.opentopodata.org