ASubtraction.h

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/**
 * @file ASubtraction.h
 * Surface Modeling Library
 * CS 497
 *
 * @author William Nagel
 */

#ifndef ASUBTRACTION_H
#define ASUBTRACTION_H

#include "RFunction.h"
#include "Intersection.h"
#include "Complement.h"  

class ASubtraction : public RFunction
{
  private:
    Intersection *m_f;
    Complement *m_comp_g;
  public:

    /// Constructor
    ASubtraction(Implicit *f, Implicit *g, int cont = 2)
    {
      m_comp_g = new Complement(g);
      m_f = new Intersection(f, m_comp_g, cont);
    }

    /// Destructor
    ~ASubtraction()
    {
      delete m_comp_g;
      delete m_f;
    }

    virtual double h(double f, double g);
    virtual double hf(double f, double g);
    virtual double hg(double f, double g);
    virtual double hff(double f, double g);
    virtual double hgg(double f, double g);
    virtual double hfg(double f, double g);

    virtual Intervald h(Intervald f, Intervald g);
    virtual Intervald hf(Intervald f, Intervald g);
    virtual Intervald hg(Intervald f, Intervald g);
    virtual Intervald hff(Intervald f, Intervald g);
    virtual Intervald hfg(Intervald f, Intervald g);
    virtual Intervald hgg(Intervald f, Intervald g);

    // These don't look right.  Probably unnecessary.
    // Need to verify! - TGF 2/10/03
/*
#ifndef INTERVAL_EVAL_ONLY
    virtual double proc(gmVector3 x) 
      {return (m_f ? m_f->proc(x) : 0);}
    virtual gmVector3 grad(gmVector3 x) 
      {return (m_f ? m_f->grad(x) : gmVector3());}
    virtual gmMatrix3 hess(gmVector3 x) 
      {return (m_f ? m_f->hess(x) : gmMatrix3());}
#endif

    virtual Intervald proc(Box<double> x);
    virtual Box3d grad(Box<double> x);
    virtual IMatrix3d hess(Box<double> x);
*/
};

#endif

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