How do I convert kilometres to degrees in Geodjango/GEOS?

by

The answer may depend upon location on earth. Near the equator, 1km is going to equal roughly 0.008 degrees (1 km / 40,000 km * 360 degrees) of latitude and longitude, but near the poles, 1km is going to equal roughly 0.008 degrees latitude, but could be many many degrees longitude. (If you’re 1km away from the pole, 1km travel ‘west’ would bring you roughly 57 degrees of longitude west.)

But, if the API just wants degrees along a great circle as the measurement, perhaps it’d be sufficient to use (n km / 40,000 km * 360 degrees). At least, 40,000km is “good enough for me” 🙂 more accurate numbers are available.

More Related Contents:

  1. Django sort by distance
  2. GeoDjango on Windows: “Could not find the GDAL library” / “OSError: [WinError 126] The specified module could not be found”
  3. How to make/use a custom database function in Django
  4. Django add brackets to django models field
  5. How to override and extend basic Django admin templates?
  6. Execute code when Django starts ONCE only?
  7. Does SQLAlchemy have an equivalent of Django’s get_or_create?
  8. OperationalError: database is locked
  9. How do you log server errors on django sites
  10. Install mysql-python (Windows)
  11. Django: How to manage development and production settings?
  12. How to make Django slugify work properly with Unicode strings?
  13. Django – CSRF verification failed
  14. Making a Django form class with a dynamic number of fields
  15. Accepting email address as username in Django
  16. Composite primary key in django
  17. Django required field in model form
  18. Serialize datetime to JSON
  19. Microsoft Visual C++ 14.0 is required. Get it with “Microsoft Visual C++ Build Tools”: http://landinghub.visualstudio.com/visual-cpp-build-tools [duplicate]
  20. How to display uploaded images in “Change List” page in Django Admin?
  21. Get local timezone in django
  22. How to make an Inner Join in django?
  23. How do I call a Django function on button click?
  24. Send message using Django Channels from outside Consumer class
  25. How to use Matplotlib in Django?
  26. How do I package a python application to make it pip-installable?
  27. How do I start up remote debugging with PyCharm?
  28. Django: sudden DB reset after Heroku sleep
  29. “gettext()” vs “gettext_lazy()” in Django
  30. “Failed building wheel for psycopg2” – MacOSX using virtualenv and pip

Leave a Comment