File indexing completed on 2024-05-05 05:46:12

0001 /***************************************************************************
0002  *   Copyright (C) 2003-2004 by David Saxton                               *
0003  *   david@bluehaze.org                                                    *
0004  *                                                                         *
0005  *   This program is free software; you can redistribute it and/or modify  *
0006  *   it under the terms of the GNU General Public License as published by  *
0007  *   the Free Software Foundation; either version 2 of the License, or     *
0008  *   (at your option) any later version.                                   *
0009  ***************************************************************************/
0010 
0011 #ifndef RESISTANCE_H
0012 #define RESISTANCE_H
0013 
0014 #include "element.h"
0015 
0016 /**
0017 @short Resistance
0018 @author David saxton
0019 */
0020 class Resistance : public Element
0021 {
0022 public:
0023     Resistance(const double resistance);
0024     ~Resistance() override;
0025 
0026     Type type() const override
0027     {
0028         return Element_Resistance;
0029     }
0030 
0031     void setConductance(const double g);
0032     void setResistance(const double r);
0033 
0034     double resistance()
0035     {
0036         return 1 / m_g;
0037     }
0038     double conductance()
0039     {
0040         return m_g;
0041     }
0042 
0043 protected:
0044     void updateCurrents() override;
0045     void add_initial_dc() override;
0046 
0047 private:
0048     double m_g; // Conductance
0049 };
0050 
0051 #endif