nearby.org.uk blog

A while ago released a Compass Overlay, which (hopefully) makes reading directions of the navigation control easier. Well this new version does the same, but its (mostly) correct for the Magnetic Direction!

Magnetic Compass ^beta!

Note: its positioned to fit the navigation control of Google Earth 4.3, not the separate compass, which has only recently begun working for me… Updates a few seconds after stopping moving.

Now have a way to determine the magnetic variation at a location have some other ideas for using this in Google Earth, eg magnetic bearing along a line, but this is a starting point. For example in the uk the variation is often too small to be really seen on the tiny control.

Thanks to heywhatsthat.com for the pointer to a webservice that gives the variation.