/// <summary>
/// initialize the default values for model-data; this occurs prior to load()
/// </summary>
internal void preInitialize()
{
if (!string.IsNullOrEmpty(parentGroup))
{
parent = owner.findGroup(parentGroup);
if (parent == null)
{
MonoBehaviour.print("ERROR: Specified parent was null!");
}
parent.addChild(this);
}
}