Re: [Update REQ 5236]: [Q] Converters to generate OOGL files : BUG!

[Luca.Toldo at EMBL-Heidelberg.DE]

Dear Sir,
I have downloaded  ftp://geom.umn.edu/priv/slevy/ucdtooff.tar.Z and installed.
I have run it with the example provided in the AVS manual page 2-41:
#
# simple AVS UCD file
#
8 1 1 0 0
1 0.000 0.000 1.000
2 1.000 0.000 1.000
3 1.000 1.000 1.000
4 0.000 1.000 1.000
5 0.000 0.000 0.000
6 1.000 0.000 0.000
7 1.000 1.000 0.000
8 0.000 1.000 0.000
1 1 hex 1 2 3 4 5 6 7 8
1 1
stress, Kg/cm**2
1   5000.0001
2  18750.0001
3  37500.0001
4  56250.0001
5  74999.9999
6  93750.0001
7 107500.0003
8   5000.0001

Follows the results:

% ucdtooff < test.ucd > test.off
ucdtooff: ignoring unknown type stress

% more test.off
OFF
8 6 268503840
0 0 1
1 0 1
1 1 1
0 1 1
0 0 0
1 0 0
1 1 0
0 1 0

4       7 6 5 4
4       0 1 2 3
1       5
4       1 0 4 2
4       6 7 3 0
4       3 7 4 2

The question is :
1) why is the program ignoring the label ?
2) When I load the program Cyberview with the output of the converter, I 
obtain the following message:

OOGL Error

Could not load specified geometry due to errors in OOGL data. The erroneous OOGL
primitive begins here: 

 OFF 8 6 268503840 0 0 1 1 0 1 1 1 1 0 1 1 0 0 0 1 0 0
 1 1 0 0 1 0 4 7 6 5 4 4 0 1 2 3 1 5 4 1 0 4 2 4 6 7 3
 0 4 3 7 4 2

3) If I load the program Cyberview with only the top part of the conversion 
output (the part before the "ignore" message) I get the following message

OOGL Error

Could not load specified geometry due to errors in OOGL data. The erroneous OOGL
primitive begins here: 

 OFF 8 6 268503840 0 0 1 1 0 1 1 1 1 0 1 1 0 0 0 1 0 0
 1 1 0 0 1 0 

4) Therefore I think somethink is not correctly working in the converter.

I would like to underline the importance of having reliable conversion tools,
if it is desired that the powerfull Geomview / Cyberview programs be used widely
and if it is also wished to "put a pressure" on the establishment the "de facto"
OOGL as Standard for Virtual Reality IP distributed systems.

Looking forward your reply and help
best regards

Luca TOLDO (PH.D.)
European Molecular Biology Laboratory
Computer Group
Heidelberg
Germany