[GRASSLIST:6489] Re: Sites and GSLIB

samuel verstraete samuel.verstraete at gmail.com
Fri Apr 15 09:56:24 EDT 2005


What I wonder.... if i understand the manual correct... I should have a
command... g3.region to initialise my 3d environment... this command
seems to be absent...


On Fri, 2005-04-15 at 14:55 +0200, samuel verstraete wrote:
> 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.
> > > > > >
> > > > > >
> > > > > >
> > > >
> > 
> 




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