Thanks to Graeme’s fantastic optical writeup I finally created a Workbench in FME. (Actually “Workspace” is the correct expression but rarely used…..)
* For distance to the picture I decided to go with Graeme’s formula “(@Value(jpeg_exif_focallength) * 659.065) / 1000”
* However, I did implement a formula “(4.1-0.0330*@Value(jpeg_exif_focallength))” for the width of the picture.
* The result is a pretty big (29 Mb KMZ-file) http://bbox.me/pub/gps_cam_1.kmz
* Here is a screenshot:
Looking pretty good! It really is pretty accurate.