[Marble-devel] Question about creating customized "sparse" maps

[Torsten Rahn]

Hi,

Well, that depends on what you mean by "sparse maps".
If you mean that the data you provide still matches a global tiling scheme
of quad tiles then it's possible: you just need the one or two level 0 tiles 
and you can leave out random other tile data from the whole tile 
pyramid. (of course you could resample your data to fit that scheme) ... .

However if you mean "sparse maps" in terms of being able to 
"randomly" blend images onto the globe then there's currently 
no way to easily accomplish this.

Jens-Michael is currently refactoring the TileLoaderin trunk.
I plan to have some "random" "sparse" map support once the TileLoader
is refactored.

Best Regards,

Torsten


On Freitag 05 Februar 2010 16:59:33 Jose Gonzalez wrote:
> Hello all,
> 
> I have a project in which I need to visualize GPS positions in an
> aerial image. Since I have experience programming Qt interfaces I
> think Marble is a good candidate for that purpose.  I have had a look
> on how to create maps (i.e. http://www.kdedevelopers.org/node/3269),
> so I have a basic understanding about how the maps are organized in
> tiles and the way they are stored.
> 
> Before I start digging into the code I would like to know if marble
> widget supports "sparse" maps, I mean, maps that only contain specific
> high resolution tiles in localized areas for which we have aerial
> images.  Also I would appreciate any tip about how to implement it if
> anybody has previous experience.
> 
> Thanks
> Jose Gonzalez
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