[GRASSLIST:9256] Re: 3D blocks again

[Jachym Cepicky]

Hi,
I thing, v.extrude is ready for testing..

jachym

On Wed, Nov 30, 2005 at 08:43:30AM +0100, Ing.Peter Misovic wrote:
> Hi Hamish.
> In regard of blocks creating we have changed following :
> float CubeVertices[8][3] = {
>     {-1.0,-1.0,-1.0},
>     {1.0,-1.0,-1.0},
>     {1.0,1.0,-1.0},
>     {-1.0,1.0,-1.0},
>     {-1.0,-1.0,1.0},
>     {1.0,-1.0,1.0},
>     {1.0,1.0,1.0},
>     {-1.0,1.0,1.0}
> };
> 
> as
> 
> float CubeVertices[8][3] = {
>     {-2.0,-2.0,-1.0},
>     {2.0,-2.0,-1.0},
>     {2.0,2.0,-1.0},
>     {-2.0,2.0,-1.0},
>     {-2.0,-2.0,1.0},
>     {2.0,-2.0,1.0},
>     {2.0,2.0,1.0},
>     {-2.0,2.0,1.0}
> };
> 
> 
> And now it is ok .
> 
> 
> Thank you,
> 
> Peto
> 
> 
> 
> 
> On 11/16/05, Ing.Peter Misovic <peter.misovic at gmail.com> wrote:
> > Hallo Hamish
> >
> > On 11/16/05, Hamish <hamish_nospam at yahoo.com> wrote:
> > > > We got the answer with hint that only hacking NVIZ code is the right
> > > > possible way how to add new symbol INTO NVIZ tool.
> > > ..
> > > > Where are the symbols from NVIZ ? In Mesa ?
> > >
> > > They are mostly in lib/ogsf/gsd_objs.c. I have just added cube and
> > > wire-frame box objects in 6.1-cvs.
> > >
> > > If anyone wants to add more they are made by OpenGL calls, but it is
> > > pretty simple to copy an existing one and modify the copy.
> > > Edit visualization/nviz/scripts/panel_site.tcl to add to the menu.
> > >
> > > I also activated a 3D asterisk and gyroscope that were already defined
> > > in the ogsf libs.
> >
> > great
> >
> > > (see attached image)
> > >
> > >
> > > > In short : we compute some geostat. parameters for mining production.
> > > > We split main mining unit into small minining units (500 000) - blocks
> > > > (based on geostat computing). As I have already written, for every
> > > > block X,Y,Z as coordinates of centroid are available; width, length
> > > > and height are known. We only need generate those boxes and display
> > > > them in 3D. Our main task is find - HOW TO - store them like 3D
> > > > objects in PostGIS and import into GRASS - no way (as I know, but I
> > > > hope I'm mistaken) ? etc etc ...GML ? I have no answer from GDAL forum
> > > > for my question : Doeas gdal suport 3D GML objects ? etc. etc.
> > >
> > > Note the above NVIZ icons will probably not be of a known calibrated
> > > scale and you will need to adjust until it looks right.
> >
> > Yes, OK.
> >
> > > If you want the boxes to be exactly the correct size (e.g. to use with
> > > 3d rasters), you will have to follow the example Jachym posted for
> > > defining 3D 'faces' using v.in.ascii.
> >
> > Yes that's what I want to test as first :)
> >
> > > The vector ascii format is described here:
> > > http://freegis.org/cgi-bin/viewcvs.cgi/~checkout~/grass6/doc/vector/vector.html#ascii
> > >
> > > If you want the vector points' boxes to be semi-transparent, you will
> > > have to learn a little OpenGL and edit gsd_objs.c by hand.
> >
> > OK.
> >
> > >
> > >
> > > Hamish
> > >
> >
> >
> > Thank you Hamish and Jachym, first of all I'm going to combine hints
> > of you both. Nice day.
> >
> > Peter
> >
> >
> >
> > >
> > >
> >
> 

-- 
Jachym Cepicky
e-mail: jachym.cepicky at centrum.cz
URL: http://les-ejk.cz
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