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https://gitlab.kitware.com/vtk/vtk-m
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c3a3184d51
Sandia National Laboratories recently changed management from the Sandia Corporation to the National Technology & Engineering Solutions of Sandia, LLC (NTESS). The copyright statements need to be updated accordingly.
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2015 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2015 UT-Battelle, LLC.
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// Copyright 2015 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_rendering_ColorTable_h
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#define vtk_m_rendering_ColorTable_h
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/rendering/Color.h>
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#include <vtkm/rendering/vtkm_rendering_export.h>
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#include <memory>
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namespace vtkm
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{
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namespace rendering
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{
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namespace detail
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{
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struct ColorTableInternals;
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}
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/// \brief It's a color table!
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///
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/// This class provides the basic representation of a color table. This class was
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/// Ported from EAVL. Originally created by Jeremy Meredith, Dave Pugmire,
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/// and Sean Ahern. This class uses seperate RGB and alpha control points and can
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/// be used as a transfer function.
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///
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class VTKM_RENDERING_EXPORT ColorTable
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{
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private:
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std::shared_ptr<detail::ColorTableInternals> Internals;
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public:
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ColorTable();
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/// Constructs a \c ColorTable using the name of a pre-defined color set.
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ColorTable(const std::string& name);
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// Make a single color ColorTable.
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ColorTable(const vtkm::rendering::Color& color);
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const std::string& GetName() const;
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bool GetSmooth() const;
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void SetSmooth(bool smooth);
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void Sample(int numSamples, vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::Float32, 4>>& colors) const;
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vtkm::rendering::Color MapRGB(vtkm::Float32 scalar) const;
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vtkm::Float32 MapAlpha(vtkm::Float32 scalar) const;
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void Clear();
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void Reverse();
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ColorTable CorrectOpacity(const vtkm::Float32& factor) const;
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void AddControlPoint(vtkm::Float32 position, const vtkm::rendering::Color& color);
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void AddControlPoint(vtkm::Float32 position,
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const vtkm::rendering::Color& color,
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vtkm::Float32 alpha);
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void AddAlphaControlPoint(vtkm::Float32 position, vtkm::Float32 alpha);
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};
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}
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} //namespace vtkm::rendering
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#endif //vtk_m_rendering_ColorTable_h
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