a question about my mapviewer program
bernhard at intevation.de
Tue Dec 28 11:44:14 CET 2004
On Mon, Dec 27, 2004 at 11:46:01AM -0800, Chris Barker wrote:
> Russell Nelson wrote:
> >In being able to edit layers?
> I'm hoping to be able to use Thuban as the basis for a special purpose
> mapping program. What I need to do is be able to load various base maps,
> generally either topos or nautical charts, and be able to draw stuff on
> top of them, like lines and polygons, etc. I also need to be able to
> load geo-data in custom vector formats. It looks like Thuban is already
> well set up for loading the various data I need, so now I need a way to
> create and edit vector data in it, and that sounds like just what you
> want to do to.
The recent work to support ogr layers by Nina opens up many formats
> I suppose I could take what you've done and work from that, (wxPython
> vs., GTK aside), but it seems to me that Thuban already has solved a lot
> of problems with file formats, projections, fast rendering of vector
> data, etc, so why not use it?
Especially if projection come into the game, a simple GIS application
is getting much more complicated.
> By the way, I have written a little mapping engine myself, for wxPython,
> but it doesn't support raster data. Rather than adding that support, I'm
> hoping to adapt Thuban to my needs. Mine is called FloatCanvas (I use it
> for other data that aren't maps as well) it is now part of the wxPython
> demo/lib, or you can get it here:
Is it Free SoftwarE? I did not find any statements on the page
or in the file in the archive. If not I suggest to make it Free Software
and also submit it to www.freegis.org.
Another wish: add a screenshot to the page. ;)
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