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/*
//
// Copyright 2010 Torsten Rohlfing
//
// Copyright 2011-2013 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit 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 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit is distributed in the hope that it
// will be useful, but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#include "cmtkImageOperationMapValues.h"
#include <limits>
cmtk::ImageOperationMapValues::ImageOperationMapValues( const char* mapping, const bool exclusive )
: m_Exclusive( exclusive )
{
const char* rptr = mapping;
while ( rptr )
{
const char* comma = strchr( rptr, ',' );
const char* plus = strchr( rptr, '+' );
double value;
std::vector<Types::DataItem> fromValues;
while ( comma && ( !plus || comma < plus) )
{
if ( 1 == sscanf( rptr, "%20lf", &value ) )
fromValues.push_back( value );
rptr = comma+1;
comma = strchr( rptr, ',' );
}
double newValue;
if ( 2 == sscanf( rptr, "%20lf:%20lf", &value, &newValue ) )
{
fromValues.push_back( value );
for ( size_t i = 0; i < fromValues.size(); ++i )
{
this->m_Mapping[fromValues[i]] = newValue;
}
}
else
{
if ( 1 == sscanf( rptr, "%20lf", &value ) )
{
fromValues.push_back( value );
for ( size_t i = 0; i < fromValues.size(); ++i )
{
this->m_Mapping[fromValues[i]] = std::numeric_limits<double>::signaling_NaN();
}
}
else
{
StdErr << "ERROR: could not parse mapping\n\t" << mapping << "\nwhich is supposed to be VAL0[,VAL1,...][:NEWVAL]\n";
}
}
// if more rules are following, separated by "+", then move to next one, otherwise terminate loop.
if ( plus )
{
rptr = plus + 1;
}
else
rptr = NULL;
}
}
cmtk::UniformVolume::SmartPtr
cmtk::ImageOperationMapValues::Apply( cmtk::UniformVolume::SmartPtr& volume )
{
TypedArray& volumeData = *(volume->GetData());
#pragma omp parallel for
for ( int i = 0; i < static_cast<int>( volumeData.GetDataSize() ); ++i )
{
Types::DataItem value = 0;
if ( volumeData.Get( value, i ) )
{
std::map<Types::DataItem,Types::DataItem>::const_iterator it = this->m_Mapping.find( value );
if ( it != this->m_Mapping.end() )
{
const Types::DataItem newValue = it->second;
if ( finite( newValue ) )
volumeData.Set( newValue, i );
else
volumeData.SetPaddingAt( i );
}
else
{
// value not explicitly mapped; see if we're in "exclusive" mode.
if ( this->m_Exclusive )
{
volumeData.SetPaddingAt( i );
}
}
}
}
return volume;
}
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