[Kde-imaging] kml export and gps interpolation bugfix

[Gilles Caulier]

2007/3/29, Stéphane Pontier <shadow.w at gmail.com>:
>
> Hi,
>
> I finally found time to work again on the kmlexport. I use QDom and merge
> it
> with gpssync plugin. It can now take a gpx file to create a track with the
> pictures.



ok. I have checked your code (not tested, i'm busy right actually). It look
fine for me...


Next thing to implement is to give user the choice of the track and picture
> style (color, width and elevation mode) but before going further, I wanted
> to
> have your opinion on this plugin.


sure. It's better to post your patch and the comments into B.K.O, especially
in this file :

http://bugs.kde.org/show_bug.cgi?id=139793

Important : these files sound like relevant of your patch :

http://bugs.kde.org/show_bug.cgi?id=135386
http://bugs.kde.org/show_bug.cgi?id=135387

If yes, tag these files like dupplicate of #139793, if no, just post a
comment

Stephane, if you want to touch the real users of GPSSync plugin, i recommend
you to use B.K.O instead mailing, because B.K.O file time live is infinte.
Also comments posted to B.K.O are CC to mailing list...

To create the track I had to add a lineString method to the GPSDataParser
> class. The track created is time independent and cant be clicked. If I
> want
> to be able to create a track which can be clicked (to get information
> about
> to road taken between two picture for example) I have to create a new set
> of
> points using time and localisation of each gpx point. I can add this
> functionality to GPSDataParser class, but since it's more kml function
> related than GPS data parsing, isn't it cleaner to create a new class
> derivate from GPSDataParser to put all kml related method in ?


yes, its better to derivate the class.


the diff file is here:
> http://stpo.homelinux.org/data/gpssync-kmlexport.diff
>
> the example file (for googleearth):
> http://stpo.homelinux.org/data/kmltest/kmldocument.kml
>
> the example file (for googlemaps):
> http://stpo.homelinux.org/data/kmltest2/kmldocument.kml
>
>
> When I checked the result on the map (see the examples) I was wondering
> why to
> points where standing out of the track (img_5161_jpg.jpeg and
> img_5168_jpg.jpeg). I found out that these two points where interpolated
> and
> found out that the formula to interpolate points should be
> point1 + (point2-point1) * (time3-time1)/(time2-time1)
> instead of
> point1 + (point2-point1) * (time2-time1)/(time3-time1)
> after using the attached patch, the pictures where interpolated correctly
> and
> get back to the track.


No idea as well. Need to test, and i busy now. Try to get comment in
B.K.Owith others users.

Gerhard, have you any ideas ?

Gilles
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