UnionIF.H

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#ifdef CH_LANG_CC
/*
*      _______              __
*     / ___/ /  ___  __ _  / /  ___
*    / /__/ _ \/ _ \/  V \/ _ \/ _ \
*    \___/_//_/\___/_/_/_/_.__/\___/
*    Please refer to Copyright.txt, in Chombo's root directory.
*/
#endif

#ifndef _UNIONIF_H_
#define _UNIONIF_H_

#include "MayDay.H"
#include "RealVect.H"
#include "Vector.H"

#include "BaseIF.H"

#include "NamespaceHeader.H"


class UnionIF: public BaseIF
{
public:

  UnionIF(const BaseIF& a_impFunc1,
          const BaseIF& a_impFunc2);


  UnionIF(const Vector<BaseIF*>& a_impFuncs);

  UnionIF(const UnionIF& a_inputIF);

  virtual ~UnionIF();


  virtual Real value(const RealVect& a_point) const;

  virtual Real value(const IndexTM<Real,GLOBALDIM>& a_point) const;

  virtual IndexTM<Real,GLOBALDIM> normal(const IndexTM<Real,GLOBALDIM>& a_point) const;

  virtual Vector< IndexTM<Real,GLOBALDIM> > gradNormal(const IndexTM<Real,GLOBALDIM>& a_point) const;

  virtual BaseIF* newImplicitFunction() const;

  void findClosest(const IndexTM<Real,GLOBALDIM>& a_point,int& closestIF) const;

  virtual bool fastIntersection(const RealVect& a_low,
                                const RealVect& a_high) const;

  virtual GeometryService::InOut InsideOutside(const RealVect& a_low,
                                               const RealVect& a_high) const ;

protected:
  int             m_numFuncs; // number of implicit functions
  Vector<BaseIF*> m_impFuncs; // implicit functions

private:
  UnionIF()
  {
    MayDay::Error("UnionIF uses strong construction");
  }

  void operator=(const UnionIF& a_inputIF)
  {
    MayDay::Error("UnionIF doesn't allow assignment");
  }
};

#include "NamespaceFooter.H"
#endif

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