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<DIV><FONT face=Arial size=2>Greetings All!</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>When exploring the geometry options in Gmsh, I
stumbled upon a problem with display</FONT></DIV>
<DIV><FONT face=Arial size=2>surface normals. I was using tutorial file 't2.geo'
at the time.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>With 'Points/Curve/Surfaces' enabled, I entered a
non-zero value in the normals field. Upon clicking OK,</FONT></DIV>
<DIV><FONT face=Arial size=2>the message window comes up with the message 'Fatal
Error: Wrong list index (read)' repeating until</FONT></DIV>
<DIV><FONT face=Arial size=2>one clicks the CANCEL button. At this point, Gmsh
is no longer responding to buttons, and the task</FONT></DIV>
<DIV><FONT face=Arial size=2>manager must be used to shut the program down. NT
recovers gracefully from this crash, but Windows 98</FONT></DIV>
<DIV><FONT face=Arial size=2>subsequently given 'Out of Memory' errors when
trying to run other programs, and can't be shut down using</FONT></DIV>
<DIV><FONT face=Arial size=2>the 'Start' bar; one must use 'RESET' to exit
Windows (a pretty hard crash).</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I did notice some window transparency issues in the
NT crash, but I did follow the installation instructions</FONT></DIV>
<DIV><FONT face=Arial size=2>regarding 'opengl32.dll' in the readme file.
</FONT><FONT face=Arial size=2>Included at the end of this email
</FONT><FONT face=Arial size=2>is a excerpt from </FONT><FONT face=Arial
size=2>the gmsh error log.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Subsequent explorations of this bug reveals that a
normal display can be had if one turns on the corresponding</FONT></DIV>
<DIV><FONT face=Arial size=2>number displays for points, curves, and surfaces.
The normals do change length with the value entered in the</FONT></DIV>
<DIV><FONT face=Arial size=2>NORMAL field, but the directions assigned the
normals does'nt appear to follow any rule corresponding to the</FONT></DIV>
<DIV><FONT face=Arial size=2>sense given when defining plane surfaces. Gmsh will
crash again, however, if one then reloads the '.geo' file.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Bests Regards</FONT></DIV>
<DIV><FONT face=Arial size=2>Layne L. Wright</FONT></DIV>
<DIV><FONT face=Arial size=2>Laser Technology Inc.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Attached Gmsh error log.........</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Gmsh
1.33.0<BR>-------------------------------------------------------<BR>Build
OS : CYGWIN_NT-4.0 1.3.2(0.39/3/2)<BR>Build
date : Mon Jan 21 18:35:02 2002<BR>Build
host :
ELAP15<BR>Packager : Administrateur<BR>Home
directory : /cygdrive/d/TEMP/<BR>Launch date : Fri Feb 8
10:01:46 2002<BR>Command line :
/cygdrive/d/Gmsh/gmsh<BR>-------------------------------------------------------<BR>Geometry<BR>Loading
'gmsh_t/t2.geo'<BR>Info : Including 'gmsh_t/t1.geo'<BR>Loaded
'gmsh_t/t2.geo'<BR>Plane Surface 6 (4 points)<BR>Plane Surface 122 (4
points)<BR>Plane Surface 144 (4 points)<BR>Plane Surface 11 (4
points)<BR>Loading 'gmsh_t/t2.geo'<BR>Info : Including 'gmsh_t/t1.geo'<BR>Loaded
'gmsh_t/t2.geo'<BR>Plane Surface 6 (4 points)<BR>Fatal Error : Wrong list index
(read)<BR>Fatal Error : Wrong list index (read)</FONT></DIV>
<DIV><FONT face=Arial
size=2>
etc.....<BR></FONT></DIV></BODY></HTML>