[Marble-devel] Reading kml files with png files included. is it supported?

[Dennis Nienhüser]

Hi Dario,

this (GroundOverlay with images) is supposed to work, assuming the .png 
images are located in the same folder as the .kml you are loading. 
Prerequisites are using latest stable version (1.4) or git master, and 
not using spherical projection.
Note that the current implementation does a naive mapping of pixels to 
geopositions, introducing errors (read: it will look fine, but don't 
trust the pixel <-> geoposition mapping especially towards the image 
center). I plan to fix that, at which point spherical projection will 
work as well.

Regards,
Dennis

Am 07.11.2012 16:28, schrieb Dario Checa:
> Reading kml files with png files included. is it supported?
>
> Hello team,
>
> I am trying to load a kml file on marble widget, I can do when I used 
> a basic kml file but when I am trying to do the same but using a kml 
> file including png files It seems it is not supported. I was digging 
> out the web to find if this is supported or not but no findings.
> So just wondering to know if you can tell me if this is supported or not.
>
> This is an example of kml file that I am trying to use:
>
> Appreciate your comments.
> Thanks in advance
> -Dario
>
> <?xml version="1.0" encoding="UTF-8"?>
> <kml xmlns="http://www.opengis.net/kml/2.2" 
> xmlns:gx="http://www.google.com/kml/ext/2.2" 
> xmlns:kml="http://www.opengis.net/kml/2.2" 
> xmlns:atom="http://www.w3.org/2005/Atom">
> <Folder>
>   <name>Radar data at station Zirbitzkogel     (coding type: PLC)</name>
>   <description>Radar reflectivity at date: 19691231 23:59:59 
> UTC</description>
>   <GroundOverlay>
>     <name>Reflectivity at elevation 0 (0.15 degree)</name>
>     <description>Reflectivity at elevation 0 (0.15 degree)</description>
>     <Icon>
>       <href>dario-0-elev-0.15.png</href>
>     </Icon>
>     <LatLonBox>
>       <north>49.0867</north>
>       <south>45.057</south>
>       <east>17.5086</east>
>       <west>11.613</west>
>     </LatLonBox>
>   </GroundOverlay>
>   <GroundOverlay>
>     <name>Reflectivity at elevation 1 (0.73 degree)</name>
>     <description>Reflectivity at elevation 1 (0.73 degree)</description>
>     <Icon>
>       <href>dario-1-elev-0.73.png</href>
>     </Icon>
>     <LatLonBox>
>       <north>49.0867</north>
>       <south>45.057</south>
>       <east>17.5086</east>
>       <west>11.613</west>
>     </LatLonBox>
>   </GroundOverlay>
>   <GroundOverlay>
>     <name>Reflectivity at elevation 2 (1.63 degree)</name>
>     <description>Reflectivity at elevation 2 (1.63 degree)</description>
>     <Icon>
>       <href>dario-2-elev-1.63.png</href>
>     </Icon>
>     <LatLonBox>
>       <north>49.0867</north>
>       <south>45.057</south>
>       <east>17.5086</east>
>       <west>11.613</west>
>     </LatLonBox>
>   </GroundOverlay>
>   <GroundOverlay>
>     <name>Reflectivity at elevation 3 (2.72 degree)</name>
>     <description>Reflectivity at elevation 3 (2.72 degree)</description>
>     <Icon>
>       <href>dario-3-elev-2.72.png</href>
>     </Icon>
>     <LatLonBox>
>       <north>49.0867</north>
>       <south>45.057</south>
>       <east>17.5086</east>
>       <west>11.613</west>
>     </LatLonBox>
>   </GroundOverlay>
> </Folder>
> </kml>
>
>
>
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