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112 lines
3.5 KiB
C++
112 lines
3.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2022- 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 "RimPlotAxisLogRangeCalculator.h"
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#include "RiaNumericalTools.h"
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#include "RiaPlotDefines.h"
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#include "RimPlotCurve.h"
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#include "cvfVector2.h"
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#include <cmath>
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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RimPlotAxisLogRangeCalculator::RimPlotAxisLogRangeCalculator( RiaDefines::PlotAxis axis, const std::vector<const RimPlotCurve*>& curves )
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: m_axis( axis )
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, m_curves( curves )
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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 RimPlotAxisLogRangeCalculator::computeAxisRange( double* minPositive, double* max ) const
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{
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double minPosValue = HUGE_VAL;
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double maxValue = -HUGE_VAL;
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for ( const RimPlotCurve* curve : m_curves )
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{
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double minPosCurveValue = HUGE_VAL;
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double maxCurveValue = -HUGE_VAL;
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if ( curveValueRange( curve, &minPosCurveValue, &maxCurveValue ) )
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{
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minPosCurveValue = RiaNumericalTools::roundToClosestPowerOfTenFloor( minPosCurveValue );
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maxCurveValue = RiaNumericalTools::roundToClosestPowerOfTenCeil( maxCurveValue );
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minPosValue = std::min( minPosValue, minPosCurveValue );
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maxValue = std::max( maxValue, maxCurveValue );
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}
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}
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if ( minPosValue == HUGE_VAL )
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{
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minPosValue = RiaDefines::minimumDefaultLogValuePlot();
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maxValue = RiaDefines::maximumDefaultValuePlot();
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}
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*minPositive = minPosValue;
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*max = maxValue;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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bool RimPlotAxisLogRangeCalculator::curveValueRange( const RimPlotCurve* curve, double* minPositive, double* max ) const
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{
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if ( !curve ) return false;
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if ( curve->dataSize() < 1 )
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{
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return false;
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}
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float minPosF = std::numeric_limits<float>::infinity();
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float maxF = -std::numeric_limits<float>::infinity();
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int axisValueIndex = 0;
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if ( RiaDefines::isVertical( m_axis ) )
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{
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axisValueIndex = 1;
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}
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for ( int i = 0; i < curve->dataSize(); ++i )
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{
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auto [x, y] = curve->sample( i );
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cvf::Vec2f vec( x, y );
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float value = vec[axisValueIndex];
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if ( value == HUGE_VALF ) continue;
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maxF = std::max( maxF, value );
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if ( value > 0.0f && value < minPosF )
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{
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minPosF = value;
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}
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}
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*minPositive = minPosF;
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*max = maxF;
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return true;
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}
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