Get elevation/altitude from GeoTIFF

[jfoclpf]

First of all I'd like to congratulate you for the public service.

I also developed an open and free Geo API for Portugal and now I'd like to provide altitude without the need of external APIs, that is, using the GeoTIFF file provided by the government agency.

How can I get that using your library? I open the TIF file with gdal.open and then?

[mmomtchev]

There is an example in the package that does exactly this

[jfoclpf]

thank you @mmomtchev , just to confirm, do you mean this? https://github.com/mmomtchev/node-gdal-async/blob/master/examples/serve.js