TransferFunction.h

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/*
 * Copyright (c) 2015-2024, EPFL/Blue Brain Project
 *
 * The Blue Brain BioExplorer is a tool for scientists to extract and analyse
 * scientific data from visualization
 *
 * This file is part of Blue Brain BioExplorer <https://github.com/BlueBrain/BioExplorer>
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License version 3.0 as published
 * by the Free Software Foundation.
 *
 * 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 for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this library; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
#include <platform/core/common/Types.h>
 
SERIALIZATION_ACCESS(TransferFunction)
 
namespace core
{
struct ColorMap
{
    std::string name;
    Vector3fs colors;
 
    bool operator==(const ColorMap& rhs) const;
 
    void clear();
};
 
class TransferFunction : public BaseObject
{
public:
    TransferFunction();
 
    void clear();
 
    const Vector2ds& getControlPoints() const { return _controlPoints; }
    void setControlPoints(const Vector2ds& controlPoints) { _updateValue(_controlPoints, controlPoints); }
 
    const ColorMap& getColorMap() const { return _colorMap; }
    void setColorMap(const ColorMap& colorMap) { _updateValue(_colorMap, colorMap); }
 
    const auto& getColors() const { return _colorMap.colors; }
    const Vector2d& getValuesRange() const { return _valuesRange; }
    void setValuesRange(const Vector2d& valuesRange) { _updateValue(_valuesRange, valuesRange); }
 
    floats calculateInterpolatedOpacities() const;
 
private:
    ColorMap _colorMap;
    Vector2ds _controlPoints;
    Vector2d _valuesRange;
 
    SERIALIZATION_FRIEND(TransferFunction)
};
} // namespace core