[Digikam-devel] [Bug 111560] Be able to locate photos on a map

[Gilles Caulier]

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http://bugs.kde.org/show_bug.cgi?id=111560         




------- Additional Comments From caulier.gilles free fr  2006-03-05 22:36 -------
ok look this screenshot :

http://digikam3rdparty.free.fr/Screenshots/GPSsidebartab.png

This is a first implementation of GPS sidebar tab on my computer. 
It's based on Kontact GPS map widget. It's simple and i have planed to use a more detailled map, displayed using a Scroolview.

Like i'm not familiarized with GPS, i have the little problem :

The lat/long data from Exif are in deg/min/sec. I need to convert it to UTM decimal value to use an external global map service. In my code the web service  www.mapquest.com is used to display a detailled map via konqueror when you use the "More Info" button.

I need an algorithm to convert it. The any source code that i have found are listed below :

http://www.gpsy.com/gpsinfo/geotoutm/
http://www.data.scec.org/ftp/LARSE/ll2UTM.c

The second link seen to be the most easy to use, but i'm not sure. And i need to have any info about how to use properly the algorithm, especially with "zone" and "ll2utm_flag", and "ispher" parameters used by this method :

sub_ll2utm(xin,yin,direction_flag,zone,spher,xout,yout)

If anybody can guide me. Thanks in advance.

Gilles Caulier