[GRASSLIST:6483] Re: Sites and GSLIB

[samuel verstraete]

I must say that i'm not "100%" sure of the conventions either...
but if you check 
r3.out.ascii 
(the manual page on the inet,
http://www.grass-kr.org/html/r3.out.ascii.html)
you will find more information on the grid specifications...

I can also send you the source code of my "gslib2g3d" program (which is
a big name for that). It's written fortran so if you're familiar with
the gslib code it should be fairly easy to understand...

(btw i've put grasslist back in the "to" field)

gr,
Samuel


On Fri, 2005-04-15 at 14:42 +0200, seba wrote:
> Hi
> yes, they are continuos......
> Well, I installed grass on fedora...and seems to work more or less properly 
> (NVIZ works fine).
> Could you send me an example ascii grid file to put in grass....
> The guide isn`t clear about grid convenctions.
> Bye
> Sebastiano
> 
> At 13.57 15/04/2005, you wrote:
> >Hi,
> >
> >I'm trying to visualize concentration so i guess that are continuous
> >attributes.
> >I never posted this on the list because i'm basically pretty new in
> >Grass...
> >I've been able to set up the region and to import my data but
> >vizualisation seems to require extra effort... :)
> >(And in anyway i think there is still something lacking on my grass
> >installation...
> >Imo there's something wrong with the ebuild file for gentoo so i'm
> >trying now a manual recompile)
> >
> >gr,
> >
> >Sam
> >
> >
> >
> >
> >
> >On Fri, 2005-04-15 at 11:05 +0200, seba wrote:
> > > Hello Samuel
> > > Good to know....
> > > Are you tryng to visualizing continuos attributes (i.e. concentration,
> > > elevation, ....) or discrete (categories) ?
> > > Did you get any answer about this issue????
> > > Bye
> > > Sebastiano
> > >
> > > At 10.06 15/04/2005, you wrote:
> > > >Hello seba...
> > > >
> > > >I'm actually trying *exactly* the same...
> > > >I was writing a fortran program and actually it is working... I can
> > > >import my 3d Gslib rasters in grass6... But i just fail to visualize
> > > >them...
> > > >
> > > >Grass is actually reading them and he recognizes the coordinates correct
> > > >but the visualization itself seems to be problematic...
> > > >
> > > >Samuel V.
> > > >
> > > >
> > > >On Fri, 2005-04-15 at 09:53 +0200, seba wrote:
> > > > > Dear list member: a couple of questions:
> > > > >
> > > > > 1- Migrating from Grass5.4 to Grass 6 I see that "sites" data object no
> > > > > longer exists. Personally, I found this a little drawback (clearly this
> > > > > could be a drawback only for me and maybe I was using the incorrect
> > > > > procedure: tell me !!!!!), especially when trying to importing huge 
> > amount
> > > > > of point cloud data (i.e. for example when using data collected by
> > > > means of
> > > > > airborne laser scanning technology: millions of points). I found really
> > > > > difficult to import elevation data and execute interpolation (compared
> > > > when
> > > > > using grass5.4 with sites): it seems that I need to link the imported
> > > > > vector points to a database table in order to define the column 
> > category.
> > > > > Then I`m wondering if using the "vector" format there is more memory
> > > > > consumption than when using "sites" format. Have you any suggestions?
> > > > >
> > > > > 2- I`m interested in visualizing 3D grid file generated by 
> > geostatistical
> > > > > tools (mainly GSLIB library: SAsim, Sisim, 3dKT....) in NViz...have 
> > you
> > > > any
> > > > > example file of a 3d grid text file in order to import it in Grass? I
> > > > would
> > > > > like to write a small code to convert the  GSlib format to Grass format
> > > > >
> > > > >
> > > > > Thank you in advance for your time
> > > > >
> > > > > Sebastiano T.
> > > > >
> > > > >
> > > > >
> > >
>