Warning, file /sdk/ktechlab/src/electronics/simulation/voltagepoint.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

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 #include "voltagepoint.h"
0012 #include "elementset.h"
0013 
0014 VoltagePoint::VoltagePoint(const double voltage)
0015     : Element::Element()
0016 {
0017     m_voltage = -voltage;
0018     m_numCBranches = 1;
0019     m_numCNodes = 1;
0020 }
0021 
0022 VoltagePoint::~VoltagePoint()
0023 {
0024 }
0025 
0026 void VoltagePoint::setVoltage(const double v)
0027 {
0028     if (-v == m_voltage)
0029         return;
0030 
0031     if (p_eSet)
0032         p_eSet->setCacheInvalidated();
0033 
0034     m_voltage = -v;
0035     add_initial_dc();
0036 }
0037 
0038 void VoltagePoint::add_initial_dc()
0039 {
0040     if (!b_status)
0041         return;
0042 
0043     A_b(0, 0) = -1;
0044     A_c(0, 0) = -1;
0045 
0046     b_v(0) = m_voltage;
0047 }
0048 
0049 void VoltagePoint::updateCurrents()
0050 {
0051     if (!b_status)
0052         return;
0053     m_cnodeI[0] = p_cbranch[0]->i;
0054 }