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

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

hi, I got some new, when I check this in SDK explorer, it only shows one parameter, but if i use these codes:

 

  ownerArray=modelObj.GetOwners();

 

  //check to see if this model is a instanced, if it is, export it
  for(long j=0; j<ownerArray.GetCount(); j++){
   //one of it's owner is group
   if(ownerArray.GetItem(j).GetClassID()==XSI::siGroupID){
    instanceGroup=ownerArray.GetItem(j);
    XSIApp.LogMessage(instanceGroup.GetParent().GetClassIDName());
    XSIApp.LogMessage(XSI::CValue(instanceGroup.GetParameters().GetCount()));

 

    //the group only have 1 parameter, and it's parent is a model is a instance group
    if(instanceGroup.GetParent().IsValid() && instanceGroup.GetParameters().GetCount()==1l &&
     instanceGroup.GetParent().GetClassID()==XSI::siModelID){

 

I always get 5 parameters. what's wrong with my code?

 

----- 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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