[GRASS5] [bug #2887] (grass) NVIZ volume polygon resolution error

this bug's URL: http://intevation.de/rt/webrt?serial_num=2887
-------------------------------------------------------------------------

Subject: NVIZ volume polygon resolution error

Platform: GNU/Linux/i386
grass binary for platform: Compiled from Sources
GRASS Version: 5.7.0 weekly snapshot from 12-25-04

Currently there is some kind of threshold regarding the polygon-resolution
when displaying volumes in NVIZ.

If the resolution is set under a magical critical value NVIZ just dies.
Unfortunately no error messages are given, but this performance is easily
reproduceable.

I am currentlty testing NVIZ-volumes on a xy-location: x=40, y=40, z=18,
x-y-z-resolutions are all set to 1. The volumes fill at max a third of the
possible volume space.

The phenomenon is independent from the size of the NVIZ-"monitor".

The problem is particularly annoying since the first polygon-resolution set
by NVIZ after a new layer of volumes has been created seldom shows all
detail. Therefore the polygon-resolution has the be counted down by the
user, which renders more detail until the the described error is (once
again) encountered.

Peter Loewe

-------------------------------------------- Managed by Request Tracker