[Marble-devel] Map Processing Question

[Torsten Rahn]

Hi Yann,

Nice to hear from you again. Did you have any further time in the meanwhile to 
play around with Marble?

Best Regards,
Torsten


On Friday 10 October 2008 06:28:00 Danuvius wrote:
> Hi, Yann!
>
> This is absolutely amazing.  It is quite what I was fantasizing about, but
> never expected to be freely available.
>
> I am however finding myself to be an unexpected dummy with GIS software.  I
> am a pretty apt dabbler in all sorts of things hardware and software
> related, but GIS is really making me feel like an idiot.  Is it genuinely
> so complex, or does it just employ a lot of jargon?
>
> Long story short: Can you point me toward some specific way I could create
> a PNG (at however high resolution I choose) or an SVG out of the shape file
> (or better yet the ESRI geodatabase file, which I am yet to even be able to
> open)?  All I've managed thus far is to save images of parts of the shape
> file currently displayed on the screen.
>
> Thank you again!
>
> Sincerely,
>
> Danuvius
>
> On Mon, Oct 6, 2008 at 5:10 AM, Yann Chemin <yann.chemin at gmail.com> wrote:
> > Hi Danuvius,
> >
> > have you tried GADM dataset? It has very high spatial resolution
> > (originally 30m landsat pixels i believe)
> > shapefile is here (careful it is huge!)
> > http://biogeo.berkeley.edu/gadm/data/gadm_v0dot9_shp.zip
> > main website is here: http://biogeo.berkeley.edu/gadm/
> > Any GIS software can do a buffer of 10 Km on a vector of following
> > coastlines, choose your tool, then export to PNG for Marble to have
> > it.
> >
> > good luck,
> > Yann
> >
> > 2008/10/6 Danuvius <danuvius at gmail.com>:
> > > Greetings, lofty KDE Marble Devs!
> > >
> > > Can anybody advise me on how I could programmatically create an overlay
> >
> > (to
> >
> > > work with Marble) consisting of a 10 km "coastal band"?
> > >
> > > Basically I want to highlight--as precisely as can be done--all land
> > > that
> >
> > is
> >
> > > less than 10 km from the ocean or ocean-connected seas.  (Basically the
> >
> > two
> >
> > > "inland" Asian seas do not count, nor do lakes and rivers.)  Doing this
> >
> > with
> >
> > > a flat map is difficult enough (although I have done it)... with
> >
> > something
> >
> > > like Marble, I am not even sure where to begin.  I figured though, if
> > > anybody knew, it would be the devs working programming magic despite
> > > the math-heavy projection-defined world of... world maps.
> > >
> > > At the end of the day, I'd basically like to be able to zoom in as far
> > > as Marble lets me and be able to tell whether particular cities, lakes,
> > > or other features are inside or outside this "highlighted coastal
> > > zone".
> > >
> > > If this is basically impossible, can somebody suggest some way to
> > > achieve the same ends?  Arguably an impractically huge (highest
> > > resolution Blue Marble size) political map would do the trick.  I
> > > already have a Python program that can create such a highlight layer
> > > from a properly
> >
> > preprocessed
> >
> > > Robinson projection map.  But as far as I can tell, sufficiently high
> > > resolution political maps don't exist outside of Marble, Google
> >
> > Maps/Earth,
> >
> > > NASA's Worldwind and similar programs.
> > >
> > > I would be immensely grateful if somebody could point me in the right
> > > direction.
> > >
> > > Respectfully,
> > >
> > > Danuvius
> > >
> > > _______________________________________________
> > > Marble-devel mailing list
> > > Marble-devel at kde.org
> > > https://mail.kde.org/mailman/listinfo/marble-devel
> >
> > --
> > Yann Chemin
> > International Rice Research Institute
> > Office: http://www.irri.org/gis
> > Perso: http://www.freewebs.com/ychemin
> > YiKingDo: http://yikingdo.unblog.fr/