OpenTopo

• Installation
  • GDAL
• Usage
• Development and contributing
• License
• Code of Conduct

Install as usual gem:

gem "open_topo"

or

gem install open_topo

ubuntu quick install with apt-get install gdal-bin

and check with gdalinfo --version or gdal_translate --version

in case of issues check:

• stackoverflow answer
• gdal doc

Request an API key via myOpenTopo in the OpenTopography portal. Only #catalog endpoint not required api key

# init client with api key or just set env OPEN_TOPOGRAPHY_API_KEY
client = OpenTopo::Client.new(api_key)

client.globaldem(north:, south:, west:, east:) # => OpenTopo::DemFile
client.usgsdem(south:, north:, west:, east:) # => OpenTopo::DemFile
client.elevation(long:, lat:) # => OpenTopo::Point
client.catalog(west:, south: , east:, north:) # => [OpenTopo::Catalog]
client.catalog(polygon:) # => [OpenTopo::Catalog]

Bug reports and pull requests are welcome on GitHub at https://github.com/andrew-kh8/open_topo. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

Everyone interacting in the OpenTopo project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.

The gem is available as open source under the terms of the MIT License.