mirror of
https://github.com/OPM/ResInsight.git
synced 2025-02-25 18:55:39 -06:00
118 lines
4.5 KiB
C++
118 lines
4.5 KiB
C++
//##################################################################################################
|
|
//
|
|
// Custom Visualization Core library
|
|
// Copyright (C) 2011-2013 Ceetron AS
|
|
//
|
|
// This library may be used under the terms of either the GNU General Public License or
|
|
// the GNU Lesser General Public License as follows:
|
|
//
|
|
// GNU General Public License Usage
|
|
// This library 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.
|
|
//
|
|
// This library 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 at <<http://www.gnu.org/licenses/gpl.html>>
|
|
// for more details.
|
|
//
|
|
// GNU Lesser General Public License Usage
|
|
// This library is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation; either version 2.1 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This library 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
|
|
// for more details.
|
|
//
|
|
//##################################################################################################
|
|
|
|
|
|
#include "cvfScalarMapperDiscreteLinear.h"
|
|
#include "cvfMath.h"
|
|
#include "cvfTextureImage.h"
|
|
|
|
#include <cmath>
|
|
#include <assert.h>
|
|
|
|
namespace cvf {
|
|
//==================================================================================================
|
|
///
|
|
/// \class cvf::ScalarMapperDiscreteLinear
|
|
/// \ingroup Render
|
|
///
|
|
/// Maps scalar values to texture coordinates/colors using discrete linear mapping
|
|
//==================================================================================================
|
|
|
|
ScalarMapperDiscreteLinear::ScalarMapperDiscreteLinear()
|
|
{
|
|
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
Color3ub ScalarMapperDiscreteLinear::mapToColor(double scalarValue) const
|
|
{
|
|
assert(m_sortedLevels.size() > 0);
|
|
|
|
double discVal = ScalarMapperDiscreteLinear::discretizeToLevelBelow(scalarValue, m_sortedLevels);
|
|
std::set<double>::reverse_iterator it = m_sortedLevels.rbegin();
|
|
|
|
if (m_sortedLevels.size() > 1 ) it++;
|
|
|
|
double levelUnderMax = *it;
|
|
double normDiscVal = normalizedValue(discVal);
|
|
double normSemiMaxVal = normalizedValue(levelUnderMax);
|
|
double adjustedNormVal = 0;
|
|
if (normSemiMaxVal != 0) adjustedNormVal = cvf::Math::clamp(normDiscVal/normSemiMaxVal, 0.0, 1.0);
|
|
|
|
return colorFromUserColorGradient(adjustedNormVal);
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
double ScalarMapperDiscreteLinear::discretizeToLevelBelow(double scalarValue, const std::set<double>& sortedLevels)
|
|
{
|
|
std::set<double>::iterator it;
|
|
|
|
it = sortedLevels.upper_bound(scalarValue);
|
|
if (it == sortedLevels.begin()) return (*it);
|
|
if (it == sortedLevels.end()) return (*sortedLevels.rbegin());
|
|
it--;
|
|
double lowerValue = *it;
|
|
|
|
return lowerValue;
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
double ScalarMapperDiscreteLinear::normalizedValue(double domainScalarValue) const
|
|
{
|
|
double range = m_rangeMax - m_rangeMin;
|
|
if (range != 0) return cvf::Math::clamp((domainScalarValue - m_rangeMin)/range, 0.0, 1.0);
|
|
else return 0;
|
|
}
|
|
|
|
//--------------------------------------------------------------------------------------------------
|
|
///
|
|
//--------------------------------------------------------------------------------------------------
|
|
double ScalarMapperDiscreteLinear::domainValue(double normalizedPosition) const
|
|
{
|
|
double range = m_rangeMax - m_rangeMin;
|
|
|
|
return (normalizedPosition * range + m_rangeMin);
|
|
|
|
}
|
|
|
|
} // namespace cvf
|