[GRASS5] nviz defaults

Helena Mitasova hmitaso at unity.ncsu.edu
Fri Nov 30 12:55:09 EST 2001

Kevin Slover wrote:

> I posted this to the GRASS list, but thought I might give this list a
> shot as well...
> I am limited in my tcl/tk programming experience...and am looking for
> a way to change the defaults in some of the NVIZ menus.  My problem is
> that I am trying to display a vector only on a raster with value=0,
> and overlaying a raster of actual data values.  The problem is that
> each time I use draw, the "display on surface(s):" is reset to
> default, which has all surfaces chosen...and I would like to change
> this so that I am forced to choose...
> can someone help??  Thanks....
> --
>         LTJG Kevin Slover,NOAA   GIS Specialist/Meteorologist/Oceanographer
>               Tropical Prediction Center/National Hurricane Center
>                     11691 SW 17th Street Miami FL 33165
>                  Work: (305) 229-4456 Fax : (305) 553-1264

Markus, Bob,

can you confirm this for the latest version of NVIZ - I have this
problem too, it appears to be a bug,
it can get pretty tough to deal with - I had 7 surfaces and wanted to
drape vectors only on a single one
and it always got it back to draping it on all, so after each redraw I
had to switch the drape on the 6 surfaces.

Also when looking at drapingwould it be easy enough to have it drape the
vectors a little bit above the surfce -
it would be invisible but it would ensure that the lines are all visible
(in SG3d it was an option )

thank you


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