Re: [CPP] How can I determine if a model is a instance

["Steve Yin" <steve(at)vrdd.com>]

Thanks Rabiller,
   the method you provided is working!! even more, you have told me more 
than I want, GREATE THANKS!!

Steve

----- Original Message ----- 
From: "Guy Rabiller" <guy(at)alamaison.fr>
To: <XSI(at)Softimage.COM>
Sent: Wednesday, November 30, 2005 7:37 PM
Subject: Re: [CPP] How can I determine if a model is a instance


> Hi Steve,
>
> either the GetMaster command or if you need the ObjectModel approach,
> try this heuristic:
> ( I think this might be the GetMaster approach ):
>
> -> To Check if a Model is an Instance:
> ( and to find its Master )
> 1) Check if one of the Model.GetOwners() is of ClassID siGroupID.
> 2) Check if the Group.GetParameters().GetCount() is 1 or 5.
> If it is 1 it is either an "InstanceGroup" of a Master Model or an
> "Associated Models" of a Light.
> From here, to distinguish the two of them, either check the name of the
> Group ( wich is rarely changed by the user ), or just to be sure, check
> if the Owner of the Group - there must be only 1 - is of Class siModelID.
> ( then you've found your master - or source - model )
>
> -> To Check if a Model is a Master
> 1) Check if one of its Groups - if any - has Parameters Count equal to 1.
> If yes, then it has been instanciated and is/was a Master.
> ( you cant remove a Model InstanceGroup )
>
> Tell me if that works for you.
>
> Regarding Clones, freeze works here in v5, without the need to save/open.
> --
> guy rabiller | 3d technical director (at) LaMaison
>
>
> Steve Yin wrote:
>
> > no, there is no such a property.
> >
> >     ----- Original Message -----
> >     *From:* kim aldis <mailto:kim(at)cg-soup.com>
> >     *To:* XSI(at)Softimage.COM <mailto:XSI(at)Softimage.COM>
> >     *Sent:* Wednesday, November 30, 2005 5:28 PM
> >     *Subject:* RE: [CPP] How can I determine if a model is a instance
> >
> >     check to see if the model has a master property.
> >
> >         ------------------------------------------------------------------------
> >         *From:* owner-xsi(at)Softimage.COM
> >         <mailto:owner-xsi(at)Softimage.COM>
> >         [mailto:owner-xsi(at)Softimage.COM] *On Behalf Of *Steve Yin
> >         *Sent:* 30-November-2005 08:48
> >         *To:* XSI(at)Softimage.COM <mailto:XSI(at)Softimage.COM>
> >         *Subject:* [CPP] How can I determine if a model is a instance
> >
> >         Hi people:
> >             I have a c++ problem, I'm trying to write a plugin for
> >         xsi, Now I need to determine if a model is a instance, and if
> >         it is, get the source model of instance.
> >
> >             I know cloned object have a opterator called copyop, but
> >         seems instanced model do not have this operator.
> >
> >             BTW, How can I change a cloned object to normal object? in
> >         XSI4.2 I just freeze the cloned object, save and open, then it
> >         will change to normal object. in XSI 5 this method(maybe a xsi
> >         bug) does not working.
> >
> >
> >             Thanks :)
>
> ---
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