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67 lines
2.4 KiB
C++
67 lines
2.4 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2023 Equinor ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#include "RimSeismicAlphaMapper.h"
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#include <algorithm>
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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RimSeismicAlphaMapper::RimSeismicAlphaMapper()
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: m_maxValue( 0.0 )
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, m_minValue( 0.0 )
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, m_dataRange( 0.0 )
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, m_scaleFactor( 0.0 )
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{
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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RimSeismicAlphaMapper::~RimSeismicAlphaMapper()
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{
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RimSeismicAlphaMapper::setDataRangeAndAlphas( double minVal, double maxVal, std::vector<double> alphas )
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{
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m_minValue = minVal;
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m_maxValue = maxVal;
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m_dataRange = maxVal - minVal;
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m_alphavalues = alphas;
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if ( m_dataRange != 0.0 )
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m_scaleFactor = 1.0 * alphas.size() / m_dataRange;
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else
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m_scaleFactor = 0.0;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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cvf::ubyte RimSeismicAlphaMapper::alphaValue( double dataValue ) const
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{
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int index = (int)( m_scaleFactor * ( dataValue - m_minValue ) );
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index = std::clamp( index, 0, (int)( m_alphavalues.size() - 1 ) );
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return ( cvf::ubyte )( m_alphavalues[index] * 255 );
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}
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