Re: [geomview-users] Problem reading OOGL files

[Claus-Justus H. <cl...@ma...>]

Hi Patrick,

I played around a little bit with your molecule data-file and somehow 
stumbled across a "LIST{" instance, i.e. an opening brace without a 
space between a preceding "LIST" keyword. Of course, it should work with 
out a space. However, inserting a space in that place makes the "g1" 
object appear, without the "progn" stuff.

This is a bug. I'm just trying to figure out whether I was the bad guy 
who introduced it. Guess I'll fix it anyway.

Greetings,

Claus



Patrick van der Wel schrieb:
> Mark,
> 
> Thanks a lot! That seems to work for the test file, and for at least one 
> of the more complex files.
> 
> Patrick
> 
> Mark Phillips wrote:
>> Patrick,
>>
>> Try wrapping everything in your file in a call to "progn".  
>> Specifically, add "(progn" before the first line of your file, and ")" 
>> after the last line.  I tried that with the test file you posted, and 
>> it seems to work.
>>
>> I can't say for sure why it's necessary, or why it wasn't necessary in 
>> previous versions of geomview.  But I know that geomview has always 
>> had some funky behavior related to buffering of commands being read 
>> from files and/or pipes, and it's possible that some of the changes 
>> since the last release related to the way it handles pipes have 
>> affected this behavior in odd ways.  The "progn" function serves 
>> (among other things) as a way to group a sequence of command together 
>> such that geomview will execute all of them before turning its 
>> attention to anything else.   There's no good reason for it to be 
>> needed in this case, where geomview is reading from a static file, but 
>> nevertheless, for whatever reason, it sometimes is.
>>
>> --Mark
>>
>> On 1/25/07, *Patrick van der Wel* <pca...@mi... 
>> <mailto:pca...@mi...>> wrote:
>>
>>     Hi,
>>
>>     I have some OOGL files generated by an external program that I am
>>     trying
>>     to display using Geomview 1.8.2-rc9. I am using both files that I know
>>     worked before, in a previous version of Geomview (1.8?) and newly
>>     created files. The result is that it seems to process the first
>>     line of
>>     the file (setting the background color according to the World
>>     statement)
>>     but nothing else happens. Sadly there are no error messages either.
>>
>>     The Geomview program was compiled under Suse Linux 10.1 and seems
>>     functional: it displays the external routines/examples such as Clock,
>>     Flythrough and the Complex Function Viewer.
>>
>>     Did anything change in terms of the interpretation or requirements
>>     for
>>     the OOGL format? Also, is there any way I can get the program to
>>     report
>>     some (more) errors or debugging info? (Including re-compiling it with
>>     some flags or something?)
>>
>>     Thanks,
>>     Patrick
>>
>>     PS. I posted one affected OOGL file at
>>     http://web.mit.edu/pcavdwel/www/Files/geomview_test.oogl
>>
>>
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>> -- 
>> Mark Phillips
>> Geometry Technologies LLC
>> mb...@ge... <mailto:mb...@ge...>
>> 828-628-0489 
> 
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