Re: number of light points in a pfLightPoint

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Lance Marrou (marrou++at++vsl.ist.ucf.edu)
Tue, 10 Oct 1995 17:11:31 -0400

On Oct 10, 2:22pm, Scott McCaskill wrote:
> Subject: number of light points in a pfLightPoint
>
> How does one query a pfLightPoint for the number of light points it
> contains? I've read the man page and the faq for this list but could
> find no mention of how to do this. Is this just an omission in the API?
> (and if so, should I direct this somewhere else?)
>
>
>-- End of excerpt from Scott McCaskill

There is a function which was left out of the man page:

extern long pfGetNumLPoints(pfLightPoint* _lpoint);

Also, in 2.0 pfLightPoints will become obsolete (which means I suppose they
will eventually get tossed out) in favor of the light point state (as noted in
the 2.0 man page):

...
pfLightPoint(3pf) IRIS Performer 2.0 libpf C Reference Pages

PARAMETERS
     lpoint identifies a pfLightPoint.

DESCRIPTION
     pfLightPoint is now obsoleted in favor of the libpr primitive
     pfLPointState. pfGetLPointGSet returns the underlying pfGeoSet of lpoint
     from which the pfLPointState can be found:

          gset = pfGetLPointGSet(lpoint);
          gstate = pfGetGSetGState(gset);
          lpstate = pfGetGStateAttr(gstate, PFSTATE_LPOINTSTATE);
...

-- 
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