//----------------------------------------------------------------------------
//  EgalTech 2014-2014
//----------------------------------------------------------------------------
// File : EgkSurf.h         Data : 07.04.14          Versione : 1.5d2
// Contenuto : Dichiarazione della interfaccia ISurf.
//
//
//
// Modifiche : 26.03.14 DS Creazione modulo.
//
//
//----------------------------------------------------------------------------

#pragma once

#include "/EgtDev/Include/EGkGeoObj.h"

//----------------------------------------------------------------------------
class __declspec( novtable) ISurf : public IGeoObj
{
   public :
      virtual bool IsSimple( void) const = 0 ;
      virtual bool IsClosed( void) const = 0 ;
      virtual bool GetArea( double& dArea) const = 0 ;
      virtual bool GetVolume( double& dVolume) const = 0 ;
      virtual bool GetCentroid( Point3d& ptCen) const = 0 ;
      virtual bool Invert( void) = 0 ;
} ;

//----------------------------------------------------------------------------
inline const ISurf* GetSurf( const IGeoObj* pGObj)
               { if ( pGObj == nullptr  ||  ( pGObj->GetType() & GEO_SURF) == 0)
                   return nullptr ;
                 return (static_cast<const ISurf*>(pGObj)) ; }
inline ISurf* GetSurf( IGeoObj* pGObj)
               { if ( pGObj == nullptr  ||  ( pGObj->GetType() & GEO_SURF) == 0)
                   return nullptr ;
                 return (static_cast<ISurf*>(pGObj)) ; }