[Marble-devel] Fwd: Morphed 1689 Eastern World Map

[Torsten Rahn]

On Sunday 26 October 2008 15:57:35 you wrote:
> underneath it's using gdalwarp and this is just the web-based UI to set
> GCP's
>
> http://www.gdal.org/gdalwarp.html

Yes, as a foundation/backend that would be the right tool for this task 
indeed. 
Do you know a nice easy to use GUI that would provide a nice user interface 
for setting a few hundred ground control points easily (ideally showing the 
resulting grid etc.)? 

Otherwise that could be a nice "small" job to implement as an application that 
would use QGraphicsView for the view and gdalwarp as the backend ...  

Regards,

Torsten


> On Sun, Oct 26, 2008 at 10:40 AM, Torsten Rahn <rahn at kde.org> wrote:
> > Hi Andrew,
> >
> > On Sunday 26 October 2008 15:11:49 Andrew Turner wrote:
> >> I assume you're talking about map/image warping?
> >
> > Yes, however of a special kind ... ;-) Did you have a look at the example
> > Url's I've posted?
> >
> >> You should check out Map Warper - an open source geo-rectification
> >> tool. It accepts any images, ground-control points, and then gives you
> >> back a geotiff, wms, tiles, etc.
> >
> > Looks kind of web-based to me. Unless there is a command line tool with a
> > nice GUI hidden somewhere I fear that Map Warper isn't quite the thing we
> > need for the kind of Historical maps we are dealing with here (Or did I
> > miss something?). The maps we are using involves setting about a few
> > hundred markers ... (Unless one would know the projection, and would be
> > sure that the source map was accurate enough and have some tools and the
> > right parameters ... yada, yada, . ;-) ) .
> >
> > But I'll give it a try for the detailed moon pictures of the Apollo /
> > lunar probe landing sites that I want to add later on. Looks like a good
> > choice for that task.
> >
> > Thanks for your suggestion!
> >
> > Torsten
> >
> >> http://wrp.geothings.net/
> >>
> >> On Sun, Oct 26, 2008 at 8:59 AM, Torsten Rahn <rahn at kde.org> wrote:
> >> > Maurizio: Seems that Magnus had already picked up the 1689 Eastern
> >> > World Map (I had already asked Magnus previously whether he would be
> >> > interested in doing that job. But as he hadn't given any update
> >> > recently I thought he had given up -- looks like I was wrong :-)   ).
> >> >
> >> > So if you are interested in the Historical Map thingie maybe you can
> >> > join forces with Magnus (and pick one of the remaining maps or find a
> >> > new one)?
> >> >
> >> > The good news is also that Magnus has looked
> >> > deeper into the issue and apparently has come up with a Free Software
> >> > solution! See his e-mail below for more information.
> >> >
> >> > Regards,
> >> >
> >> > Torsten
> >> >
> >> > ----------  Forwarded Message  ----------
> >> >
> >> > Subject: Morphed 1689 Eastern World Map
> >> > Date: Sunday 26 October 2008
> >> > From: magnus
> >> > To: tackat at kde.org
> >> >
> >> > Hi, Thorsten
> >> >
> >> > This was no easy task you had me do.
> >> > I tried to morphman software you suggested, but when it didn't work on
> >> > wine when I tried it, I didn't bother trying to get it to work - it's
> >> > proprietary, I'd rather not use it.
> >> >
> >> > I stuck with xmorph, but it had too few vertical/horizontal lines to
> >> > be usable. I found the value in the source code to change to up the
> >> > minimum number of lines (default was 4, I changed it to 55), but it
> >> > wouldn't compile - wanted some dependencies that I already had -  and
> >> > since it's an old unmaintained piece of software the website and
> >> > mailinglist (6 postings in 4 years) was no help, I contacted the
> >> > debian developer to get some pointers to getting it compiled, and his
> >> > advice worked.
> >> >
> >> > So today I have been moving little yellow dots, I just finished
> >> > spending ~3 hours getting the eastern part of the world morphed(it's a
> >> > thing to keep you busy with when listening to podcasts).
> >> >
> >> > Here's the result, I think it should be somewhat usable:
> >> > [URL deleted as it was pointing to a private website and the download
> >> > is a bit big ....]
> >> >
> >> > I'll probably do the western part later today.
> >> >
> >> > Magnus
> >> >
> >> > -------------------------------------------------------
> >> >
> >> >
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