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Diffstat (limited to 'src/electronics/simulation/element.cpp')
| -rw-r--r-- | src/electronics/simulation/element.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/electronics/simulation/element.cpp b/src/electronics/simulation/element.cpp new file mode 100644 index 0000000..2411897 --- /dev/null +++ b/src/electronics/simulation/element.cpp @@ -0,0 +1,193 @@ +/*************************************************************************** + * 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 "element.h" +#include "elementset.h" + +#include <assert.h> + +#include <kdebug.h> + +Element::Element() +{ + b_status = false; + p_A = 0l; + p_eSet = 0l; + p_b = 0l; + b_componentDeleted = false; + b_eSetDeleted = true; + + for ( int i=0; i<8; i++ ) + p_cnode[i] = 0l; + + resetCurrents(); + + for ( int i=0; i<4; i++ ) + p_cbranch[i] = 0l; + + m_numCBranches = 0; + m_numCNodes = 0; +} + +Element::~ Element() +{ +} + +void Element::resetCurrents() +{ + for ( int i=0; i<8; i++ ) + m_cnodeI[i] = 0.0; +} + +void Element::setElementSet( ElementSet *c ) +{ + assert(!b_componentDeleted); + assert(!p_eSet); + if (!c) return elementSetDeleted(); + b_eSetDeleted = false; + p_eSet = c; + p_A = p_eSet->matrix(); + p_b = p_eSet->b(); + updateStatus(); +} + +void Element::componentDeleted() +{ +// assert(!b_componentDeleted); + if (b_componentDeleted) + { + // Something strange happened here.... + } + if (b_eSetDeleted) return delete this; + b_componentDeleted = true; + b_status = false; +// kdDebug() << "Element::componentDeleted(): Setting b_status to false, this="<<this<<endl; + + p_eSet = 0l; + p_A = 0l; + p_b = 0l; + setCNodes(); + setCBranches(); +} + +void Element::elementSetDeleted() +{ +// assert(!b_eSetDeleted); + if (b_eSetDeleted) + { + // Something strange happened here.... + } + if (b_componentDeleted) return delete this; + b_eSetDeleted = true; + b_status = false; +// kdDebug() << "Element::elementSetDeleted(): Setting b_status to false, this="<<this<<endl; + + p_eSet = 0l; + p_A = 0l; + p_b = 0l; + setCNodes(); + setCBranches(); +} + + +void Element::setCNodes( const int n0, const int n1, const int n2, const int n3 ) +{ + if ( !p_eSet ) + { +// cerr << "Element::setCNodes: can't set nodes without circuit!"<<endl; + for ( int i=0; i<8; i++ ) + p_cnode[i] = 0l; + return; + } + + // MAX_CNODES-1 should match the last array index below. + assert( MAX_CNODES == 4 ); + p_cnode[0] = (n0>-1)?p_eSet->cnodes()[n0]:(n0==-1?p_eSet->ground():0l); + p_cnode[1] = (n1>-1)?p_eSet->cnodes()[n1]:(n1==-1?p_eSet->ground():0l); + p_cnode[2] = (n2>-1)?p_eSet->cnodes()[n2]:(n2==-1?p_eSet->ground():0l); + p_cnode[3] = (n3>-1)?p_eSet->cnodes()[n3]:(n3==-1?p_eSet->ground():0l); + updateStatus(); +} + +void Element::setCBranches( const int b0, const int b1, const int b2, const int b3 ) +{ + if ( !p_eSet ) + { +// cerr << "Element::setCBranches: can't set branches without circuit!"<<endl; + for ( int i=0; i<4; i++ ) p_cbranch[i] = 0l; + return; + } + p_cbranch[0] = (b0>-1)?p_eSet->cbranches()[b0]:0l; + p_cbranch[1] = (b1>-1)?p_eSet->cbranches()[b1]:0l; + p_cbranch[2] = (b2>-1)?p_eSet->cbranches()[b2]:0l; + p_cbranch[3] = (b3>-1)?p_eSet->cbranches()[b3]:0l; + updateStatus(); +} + +bool Element::updateStatus() +{ + // First, set status to false if all nodes in use are ground + b_status = false; + for ( int i=0; i<m_numCNodes; i++ ) + { + b_status |= p_cnode[i]?!p_cnode[i]->isGround:false; + } + + // Set status to false if any of the nodes are not set + for ( int i=0; i<m_numCNodes; i++ ) + { + if (!p_cnode[i]) b_status = false; + } + + // Finally, set status to false if not all the required branches are set + for ( int i=0; i<m_numCBranches; i++ ) + { + if (!p_cbranch[i]) b_status = false; + } + + // Finally, check for various pointers + if ( !p_eSet || !p_A || !p_b ) b_status = false; + + if (!b_status) + { + resetCurrents(); + } + // And return the status :-) +// kdDebug() << "Element::updateStatus(): Setting b_status to "<<(b_status?"true":"false")<<" this="<<this<<endl; + return b_status; +} + +double Element::cbranchCurrent( const int branch ) +{ + if ( !b_status || branch<0 || branch>=m_numCBranches ) return 0.; + return (*p_cbranch)[branch].i; +} + +double Element::cnodeVoltage( const int node ) +{ + if ( !b_status || node<0 || node>=m_numCNodes ) return 0.; + return (*p_cnode)[node].v; +} + + +CNode::CNode() +{ + m_n = 0; + v = 0.0; + isGround = false; +} + +CBranch::CBranch() +{ + m_n = 0; + i = 0.0; +} + + |