A Flask based python REST API for the srtm module to get elevations for an area described by a lat/lon bounding box.
pip install -r requirements.txt
python ./srtm_server.py
Starts on port 5000
Get toolbet from here: https://devcenter.heroku.com/articles/getting-started-with-python#set-up
Run the following commands:
heroku login
virtualenv venv
Just on Windows:
venv\Scripts\activate.bat
Just on *NIX:
source venv/bin/activate
pip install -r requirements.txt --allow-all-external
heroku create
git push heroku master
heroku ps:scale web=1
heroku open
Browser should open displaying "Hello World!"
Form a URL as follows:
APP_URL/api/getElevations?north=TOP_LAT&south=BOTTOM_LAT&east=RIGHT_LON&west=LEFT_LON&resolution=RES
E.g.
or
localhost:5000/api/getElevations?north=-37.7&south=-38&east=145.2&west=144.9&resolution=256
An 8 bit RBG png image height map of the area specified is returned. Each pixels value represents height above sea level in meters encoded as follows;
Height(m) = R*255 + G + B*100
E.g.
Form a URL as follows:
APP_URL/api/getElevation?lat=LAT&lon=LON
E.g.
http://localhost:5000/api/getElevation?lat=43.6168&lon=6.95063 79
Form a URL as follows:
APP_URL/api/getCountry?lat=LAT&lon=LON
E.g.
http://localhost:5000/api/getCountry?lat=43.6168&lon=6.95063 FR
The data file polygons.properties is available under a Creative Commons Attribution-Share Alike License in accordance with the license from https://github.com/bencampion/reverse-country-code. It was copied and fixed from daveross/offline-country-reverse-geocoder