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Welcome to the info-performer mailing list DIGEST for December 01 2000
List Archives, FAQ, FTP: http://www.sgi.com/software/performer/
Send Submissions to: info-performer++at++sgi.com
Add/Remove requests: info-performer-request++at++sgi.com
Message Subjects:
pfCylinder problem
Re: step file loader
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From: "Yves GAUVIN" <yves.gauvin++at++sncf.fr>
Date: Fri, 1 Dec 2000 14:45:39 +0100
Subject: pfCylinder problem
Hello,
For intersection testing, I was using segset, but I want to use pfCylinder
to test intersection. Here is a part of my code, when I run this, I ve got
the message :
19373 PF Warning/Usage: pfCylAroundSegs() NULL pfCylinder*.
I guess that my cylinder has a bad definition but I don't see where. I'm
using performer 2.3.1 under Linux.
segset_collision.activeMask = 0x0007;
segset_collision.isectMask = 0xFFFF;
segset_collision.mode = PFTRAV_IS_GSET|PFTRAV_IS_CULL_BACK|PFTRAV_IS_PATH;
/*|PFTRAV_IS_BCYL for later when the definition of the cylinder will work*/
segset_collision.userData = NULL;
segset_collision.discFunc = NULL; /*then I will set it to l_bound_cylinder
when the definition will work*/
for (i = 0; i <3; i++)
{
float l_val;
l_val = 45*(i+1)*M_PI/180;
pfSetVec3 (segset_collision.segs[i].dir,cos (l_val), sin (l_val), -0.5
* (i)); /*-0.5 * (i), the 3 vectors are not in the same plane*/
ComputeAbsPos ((pfNode *) shared -> scene,p_zone -> noeud_collision ,
l_matrix);
pfSetVec3
(segset_collision.segs[i].pos,l_matrix[3][0],l_matrix[3][1],l_matrix[3][2]+1
.5f);
segset_collision.segs[i].length = 2.0f;
}
pfCylinder *l_bound_cylinder;
pfCylAroundSegs (l_bound_cylinder, (const pfSeg **)
&segset_collision.segs, 3);
Please Help
Cheers
Yves GAUVIN
FRENCH RAILROAD.
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From: Chris Sandridge <c.a.sandridge++at++larc.nasa.gov>
Date: Fri, 01 Dec 2000 10:26:53 -0500
Subject: Re: step file loader
I am not aware of a STEP file loader for performer. However, there are
probably several CAD packages that will import STEP geometry and export in
a format that can be read by performer. Information on STEP can be found
at http://pdesinc.scra.org/ which is an government/industry consortium to
promote the adoption of step. This site has a list of tools that have STEP
translators and vendors that can supply or help build STEP translators. If
you are interested in geometry, AP203 is the particular STEP standard to
look at.
Chris
> From: Surya Gullapalli <linuxmaillist++at++yahoo.com>
> Date: Wed, 29 Nov 2000 08:46:37 -0800 (PST)
> Subject: step file loader
>
>Hi,
>I'm looking for step file loader for performer. where
>can i get that. or can any one tell me where can i get
>very good information about step files and their
>formats.
>thanks in advance
>surya
___________________________________________________________________
Chris A. Sandridge c.a.sandridge++at++larc.nasa.gov
Analytical and Computational Methods Branch (757) 864-2816
M.S. 240, NASA Langley Research Center Fax: (757) 864-8912
3 Langley Blvd., B1229, Rm. 237
Hampton, VA 23681
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