Depends on the vips library.
To get it, execute brew install libvips or download it here.
yarn add global topoJoy
topoJoy token
topoJoy snowMesa.json snowImage 14
A command line tool for downloading sections of topo maps and stitching them together. Maps come from mapbox.
You'll be prompted for a valid api key when you use the app the the first time. You can update your key by typing topoJoy token.
You can use geoJson to produce valid input, though any well formed geoJson features file should work. See the example.json file.