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authortpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-24 01:49:02 +0000
committertpearson <tpearson@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2010-02-24 01:49:02 +0000
commit5de3dd4762ca33a0f92e79ffa4fe2ff67069d531 (patch)
treebad482b7afa4cdf47422d60a5dd2c61c7e333b09 /src/electronics/simulation/currentsignal.cpp
downloadktechlab-5de3dd4762ca33a0f92e79ffa4fe2ff67069d531.tar.gz
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Added KDE3 version of ktechlab
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/ktechlab@1095338 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
Diffstat (limited to 'src/electronics/simulation/currentsignal.cpp')
-rw-r--r--src/electronics/simulation/currentsignal.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/electronics/simulation/currentsignal.cpp b/src/electronics/simulation/currentsignal.cpp
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+++ b/src/electronics/simulation/currentsignal.cpp
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+/***************************************************************************
+ * 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 "currentsignal.h"
+#include "element.h"
+#include "matrix.h"
+
+CurrentSignal::CurrentSignal( const double delta, const double current )
+ : Reactive::Reactive(delta)
+{
+ m_current = current;
+ m_oldCurrent = m_newCurrent = 0.;
+ m_numCNodes = 2;
+}
+
+CurrentSignal::~CurrentSignal()
+{
+}
+
+void CurrentSignal::setCurrent( const double i )
+{
+ if ( m_oldCurrent != m_newCurrent ) add_initial_dc();
+ m_newCurrent *= i/m_current; // Instead of calling step again, we can just "adjust" what the current should be
+ m_current = i;
+ add_initial_dc();
+}
+
+
+void CurrentSignal::add_map()
+{
+ // We don't need a map for current signal :-)
+}
+
+
+void CurrentSignal::add_initial_dc()
+{
+ if ( !b_status )
+ return;
+
+ if ( m_newCurrent == m_oldCurrent )
+ return;
+
+ b_i( 0 ) -= m_newCurrent-m_oldCurrent;
+ b_i( 1 ) += m_newCurrent-m_oldCurrent;
+
+ m_oldCurrent = m_newCurrent;
+}
+
+void CurrentSignal::updateCurrents()
+{
+ m_cnodeI[1] = m_newCurrent;
+ m_cnodeI[0] = -m_newCurrent;
+}
+
+void CurrentSignal::time_step()
+{
+ add_initial_dc(); // Make sure our old and new are synced
+ m_newCurrent = m_current*advance();
+ add_initial_dc();
+}