phpgraphy-0.9.13b-alge.diff contains the following changes/additions to
phpgraphy-0.9.13b (see http://phpgraphy.sourceforge.net/download.php,
original tar file included here)

Some small fixes:

* primary make use of dates from EXIF tags for sorting, only use file stamp
  as fallback. (Otherwise file order changes after each ediiting step like rotating)
* use Exif orientation entry to rotate autmatically.
* avoid dividing by an ExposureTime set to 0
* use PHP_JPEG_Metadata_Toolkit_1.11 to read some more geotags

Additions:

* add geotagging features:
  + read and display locations from EXIF data. This is done via the PHP PEL 
    library which is also included in the patch.
  + show location on a map via google maps API for single image display
  + show an overview map for image browsing pages with clickable markers
  + in admin mode:
    allow to create and modify geotags by
    - direct input,
    - via marker on map,
    - address search or
    - by reusing coordinates from neigbour images.

The geotagging extensions are more or less usable for me but still a bit 
ugly coded :-) 

Bugs: + coordinates in western hemisphere are set to 0,0, I tested only in Central 
        Europe


Maybe this addition can somehow be seen related to:
http://sourceforge.net/tracker/?func=detail&aid=2858402&group_id=6082&atid=356082


These additions to PHPgraphy are as PHPgraphy itself (and the additionally used
PEL library as well as PHP_JPEG_Metadata_Toolkit_1.11) under

GNU General Public Licence ("GPL"). see http://www.gnu.org/licenses/gpl.txt

Albrecht Gebhardt <alge@algepop.net>