[GRASS5] nviz-bug]

Bob Covill bcovill at tekmap.ns.ca
Mon Feb 5 12:18:54 EST 2001



Markus Neteler wrote:

> On Mon, Feb 05, 2001 at 12:01:00PM -0400, Bob Covill wrote:
> > Markus Neteler wrote:
> >
> > > Bob,
> > >
> > > using a lat/long dataset your proposed change leads to the opposite effect:
> > > The surface is rather dark then. If switching back to the current CVS
> > > version it's quite good (little dark only, but adjustable).
> > >
> > > Maybe the use of USE_GL_NORMALIZE must be dependent on the projection?
> > >
> > > Markus
> >
> > Markus,
> >
> > Unfortunately, I have not had a chance to test the change on alot of datasets.
> >
> > I would suggest also removing the changes in GS2.c that I made a while back as a temp
> > fix for Lat Long databases.  This is the section where the Longdim variable is
> > calculated.  Just revert it to the old calc method and give it a try.
> >
> > Let me know if this helps.
> > --
>
> Bob,
>
> obviously not... I reverted to GS2.c rev.1.3 and commented the
> USE_GL_NORMALIZE in gs_norm.c, rebuilt the lib and NVIZ: All black
> then.
>
> Sorry for no better news,
> Markus
>
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Markus,

Well it was worth a try. There is one other routine that I was playing with a while back
for calculating normals with Lat Long databases. I will give that a try later on and let
you know if it works.

--
Bob Covill

Tekmap Consulting
P.O. Box 2016
Fall River, NS
Canada
B2T 1K6



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