ConstantF.h

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/* -*- mode: c++ -*-
 *
 * HippoPlot ConstantF  class interface
 *
 * Copyright (C) 2000, 2003   The Board of Trustees of The Leland
 * Stanford Junior University.  All Rights Reserved.
 *
 * $Id: ConstantF.h,v 1.32 2005/10/30 00:10:11 pfkeb Exp $
 *
 */

#ifndef _ConstantF_H_
#define _ConstantF_H_

#include "FunctionBase.h"

namespace hippodraw {

class MDL_HIPPOPLOT_API ConstantF : public FunctionBase
{
protected:

  virtual void initialize ();

 public:

  ConstantF ();

  explicit ConstantF ( double value );

  virtual FunctionBase * clone () const;

  virtual double operator () ( double x ) const;

  virtual void initialParameters ( const FunctionHelper * helper );

protected:

  virtual double derivByParm ( int i, double x ) const;

};

} // namespace hippodraw

#endif // _ConstantF_H_