[Plib-users] Save *.ac Files, File empty

[Michael W. <michael.wessels@z.zgs.de>]

Hi all,
with the following code I read a *.ac model and try to save it again.

Code:
static int countVertices ( ssgEntity *e )
{
  int count = 0 ;

  if ( e -> isAKindOf ( SSG_TYPE_BRANCH ) )
  {
    ssgBranch *br = (ssgBranch *) e ;

    for ( int i = 0 ; i < br -> getNumKids () ; i++ )
      count += countVertices ( br -> getKid ( i ) ) ;
  }
  else
  if ( e -> isAKindOf ( SSG_TYPE_VTABLE ) )
  {
    ssgVTable *vt = (ssgVTable *) e ;
    count += vt -> getNumVertices () ;
  }

  return count ;
}

static int countTriangles ( ssgEntity *e )
{
  int count = 0 ;

  if ( e -> isAKindOf ( SSG_TYPE_BRANCH ) )
  {
    ssgBranch *br = (ssgBranch *) e ;

    for ( int i = 0 ; i < br -> getNumKids () ; i++ )
      count += countTriangles ( br -> getKid ( i ) ) ;
  }
  else
  if ( e -> isAKindOf ( SSG_TYPE_VTABLE ) )
  {
    ssgVTable *vt = (ssgVTable *) e ;
    count += vt -> getNumTriangles () ;
  }

  return count ;
}

/*
Load Model.ac with plib
*/
static void load_model()
{
 char Data_Path[128];
 char Type_Name[128];
 int Num_Triangles;
 int Num_Vertices;
  test_obj = new ssgTransform ;
  sprintf(Data_Path,"..\\Data\\");
  ssgModelPath   (Data_Path) ;
  ssgTexturePath (Data_Path) ;
  ssgEntity *obj = ssgLoadAC ("cube.ac") ;
//  ssgFlatten         ( obj  ) ;
  test_obj -> addKid ( obj  ) ;
//  ssgStripify        ( test_obj ) ;
  root_scene = new ssgRoot;
  root_scene -> addKid(test_obj);
  Num_Triangles = countTriangles(test_obj);
  Num_Vertices  = countVertices(test_obj);
  sprintf(Type_Name, obj->getTypeName());
  ssgSaveAC("test.ac",test_obj);
}
But the file test.ac is empty without vertices.
Num_Triangles and Num_Vertices gives zero.
Using obj instead of test_obj I got the same result.

Running this part of code in the complete code the cube is visible.

What is wrong?

With regards

Michael