OpenWalnut
1.4.0
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00001 //--------------------------------------------------------------------------- 00002 // 00003 // Project: OpenWalnut ( http://www.openwalnut.org ) 00004 // 00005 // Copyright 2009 OpenWalnut Community, BSV@Uni-Leipzig and CNCF@MPI-CBS 00006 // For more information see http://www.openwalnut.org/copying 00007 // 00008 // This file is part of OpenWalnut. 00009 // 00010 // OpenWalnut is free software: you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as published by 00012 // the Free Software Foundation, either version 3 of the License, or 00013 // (at your option) any later version. 00014 // 00015 // OpenWalnut is distributed in the hope that it will be useful, 00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00018 // GNU Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public License 00021 // along with OpenWalnut. If not, see <http://www.gnu.org/licenses/>. 00022 // 00023 //--------------------------------------------------------------------------- 00024 00025 #include <cstddef> 00026 00027 #include <sstream> 00028 #include <string> 00029 00030 #include <boost/shared_ptr.hpp> 00031 00032 #include "../common/exceptions/WOutOfBounds.h" 00033 #include "../common/math/linearAlgebra/WPosition.h" 00034 #include "WEEGPositionsLibrary.h" 00035 #include "WEEGChannelInfo.h" 00036 #include "exceptions/WDHException.h" 00037 #include "io/WPagerEEG.h" 00038 00039 00040 WEEGChannelInfo::WEEGChannelInfo( std::size_t channelID, 00041 boost::shared_ptr< WPagerEEG > pager, 00042 boost::shared_ptr< WEEGPositionsLibrary > positionsLibrary ) 00043 { 00044 if( !pager ) 00045 { 00046 throw WDHException( std::string( "Couldn't construct new EEG channel info: pager invalid" ) ); 00047 } 00048 00049 if( !positionsLibrary ) 00050 { 00051 throw WDHException( std::string( "Couldn't construct new EEG channel info: positions library invalid" ) ); 00052 } 00053 00054 if( channelID >= pager->getNumberOfChannels() ) 00055 { 00056 std::ostringstream stream; 00057 stream << "The EEG has no channel number " << channelID; 00058 throw WOutOfBounds( stream.str() ); 00059 } 00060 00061 m_unit = pager->getChannelUnit( channelID ); 00062 m_label = pager->getChannelLabel( channelID ); 00063 00064 try 00065 { 00066 m_position = positionsLibrary->getPosition( m_label ); 00067 m_hasPosition = true; 00068 } 00069 catch( const WOutOfBounds& ) 00070 { 00071 m_hasPosition = false; 00072 } 00073 } 00074 00075 std::string WEEGChannelInfo::getUnit() const 00076 { 00077 return m_unit; 00078 } 00079 00080 std::string WEEGChannelInfo::getLabel() const 00081 { 00082 return m_label; 00083 } 00084 00085 WPosition WEEGChannelInfo::getPosition() const throw( WDHException ) 00086 { 00087 if( m_hasPosition ) 00088 { 00089 return m_position; 00090 } 00091 else 00092 { 00093 throw WDHException( std::string( "The position of this electrode is unknown." ) ); 00094 } 00095 }