class ITransformable
{
	public:	
		virtual void setTransformation() = 0;		
}

class IBox : public ITransformable
{
	public:		
		virtual void DrawSketch() = 0;
}


////////////////////////////////////////////////////////////////////////

class Transformation : public ITransformable
{
	public:
		void setTransformation();  // Implementierung im src-File   
}
       
class IventorBox : public IBox, Transformation
{
	public:
		void DrawSketch(); // Implementierung im src-File   
}

//Ziel:
IBox aBox = new InventorBox();

//aber  der Compiler meckert rum, dass InventorBox eine abstrakte Klasse sei....