[Papervision3D] Loading multiple collada objects

[dsdsdsdsd]

yes, you do need to wait until the .dae has loaded fully ( I should have
mentioned that earlier );

also, I believe that Collada is not really supposed to be used any more, but
instead DAE class;
also, I do not know if Collada or DAE will work without calling their load
method ( see below ) ;

so ...


package
{


import org.papervision3d.objects.parsers.DAE ;


public class some_class
{


private var colla                       : DAE                ;
private var pvb_DAE_is_complete : Boolean = false ;

public function some_class ( ) : void
  {
    colla        = new DAE( ) ; // MAYBE DO NOT reference the .dae here    
    colla.load  ( "Car.dae" ) ; //      BUT instead here;
                
    om_setup_event_handlers ( ) ;
  } ;

private function om_setup_event_handlers ( ) : void
  { colla.addEventListener( FileLoadEvent.LOAD_COMPLETE               ,
om_handleLoadComplete     ) ;
    colla.addEventListener( FileLoadEvent.LOAD_ERROR                     ,
om_handleLoadError           ) ;
    colla.addEventListener( FileLoadEvent.LOAD_PROGRESS                ,
om_handleProgress            ) ;
    colla.addEventListener( FileLoadEvent.SECURITY_LOAD_ERROR       ,
om_handleSecurity            ) ;
    colla.addEventListener( FileLoadEvent.COLLADA_MATERIALS_DONE ,
om_handleMaterialsDone     ) ;
  } ;

private function om_remove_event_handlers ( ) : void
  { colla.removeEventListener( FileLoadEvent.LOAD_COMPLETE                ,
om_handleLoadComplete   ) ;
    colla.removeEventListener( FileLoadEvent.LOAD_ERROR                    
, om_handleLoadError           ) ;
    colla.removeEventListener( FileLoadEvent.LOAD_PROGRESS                ,
om_handleProgress            ) ;
    colla.removeEventListener( FileLoadEvent.SECURITY_LOAD_ERROR       ,
om_handleSecurity            ) ;
    colla.removeEventListener( FileLoadEvent.COLLADA_MATERIALS_DONE ,
om_handleMaterialsDone     ) ;
  } ;

//  ...

//------------------------------------------------------------------
// event handlers, such as ... 
private function om_handleMaterialsDone( argo_event : FileLoadEvent ) : void
  { trace( "om_handleMaterialsDone" );
     om_check_ready_status ( ) ;
  };
private function om_handleLoadComplete( argo_event : FileLoadEvent ) : void
  { trace("om_handleLoadComplete");
    om_check_ready_status ( ) ;
  };


//------------------------------------------------------------------
private function om_check_ready_status ( )
  { //   BOTH 
    //        FileLoadEvent.LOAD_COMPLETE
    //        FileLoadEvent.COLLADA_MATERIALS_DONE 
    //   need to fire before the .dae is complete

     if ( pvb_DAE_is_complete == true )
      { om_remove_event_handlers         ( ) ;
        om_handle_DAE_now_fully_loaded  ( ) ;
      }
    else
      { pvb_DAE_is_complete = true ;
      } ;
  } ;

//--------------------------------------------------
// now you know that .dae is fully loaded ...
private function om_handle_DAE_now_fully_loaded () : void
  { trace( "handle_DAE_now_fully_loaded , colla        : " + colla                                                
) ;
    
    var car_model : DisplayObject3D = colla.getChildByName(
"the_name_of_a_model" , true )  ;   
    
    trace( "handle_DAE_now_fully_loaded , car          : " + car_model                                         
) ;
    trace( "handle_DAE_now_fully_loaded , geometry  : " + car_model.geometry                            
) ;
    trace( "handle_DAE_now_fully_loaded , a face      : " +
car_model.geometry.faces[ 0 ]               ) ;
    trace( "handle_DAE_now_fully_loaded , material A : " +
car_model.geometry.faces[ 0 ].material    ) ;
    trace( "handle_DAE_now_fully_loaded , material B : " +
car_model.material                                ) ;
    
    var temp_colla : DisplayObject3D = car_model.clone() ;
  };


} // end class
} // end package







Shannon






CodeyCody wrote:
> 
> 
> dsdsdsdsd wrote:
>> 
>> 
>> you need to get the model out of the Collada ( dae ):
>> var colla         : Collada             = new Collada("Car.dae");
>> var car_model : DisplayObject3D = colla.getChildByName( "the_car" , true
>> )  ;
>> 
>> var temp_colla:DisplayObject3D = car_model.clone() ;
>> 
>> Shannon
>> 
>> 
> 
> Thanks again for replying.
> 
> I wrote the code you gave me, and its giving me an error about referencing
> a null object.
> 
> In debug mode, I've now realised that the collada object itself ("colla")
> is null, and so is its geometry etc.
> 
> Is this because it hasn't loaded yet?
> 
> Or am I getting the error simply because there's no child "the_car"?
> 
> (Bear with me: what is a child?)
> 
> Help appreciated.
> 

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