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voltagepoint.cpp

/***************************************************************************
 *   Copyright (C) 2003-2004 by David Saxton                               *
 *   david@bluehaze.org                                                    *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 ***************************************************************************/

#include "matrix.h"
#include "voltagepoint.h"
#include "elementset.h"

VoltagePoint::VoltagePoint( const double voltage )
      : Element::Element()
{
      m_voltage = -voltage;
      m_numCBranches = 1;
      m_numCNodes = 1;
}


VoltagePoint::~VoltagePoint()
{
}


void VoltagePoint::setVoltage( const double v )
{
      if ( -v == m_voltage ) return;
      
      if (p_eSet)
            p_eSet->setCacheInvalidated();
      
      m_voltage = -v;
      add_initial_dc();
}

00040 void VoltagePoint::add_initial_dc()
{
      if (!b_status) return;
      
      A_b( 0, 0 ) = -1;
      A_c( 0, 0 ) = -1;
      
      b_v( 0 ) = m_voltage;
}


00051 void VoltagePoint::updateCurrents()
{
      if (!b_status) return;
      m_cnodeI[0] = p_cbranch[0]->i;
}


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