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https://gitlab.kitware.com/vtk/vtk-m
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944bc3c0d6
The new and improved vtkm::cont::ColorTable provides a more feature complete color table implementation that is modeled after vtkDiscretizableColorTransferFunction. This class therefore supports different color spaces ( rgb, lab, hsv, diverging ) and supports execution across all device adapters.
111 lines
4.0 KiB
C++
111 lines
4.0 KiB
C++
//=============================================================================
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//
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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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//
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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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// 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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//=============================================================================
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#ifndef vtk_m_exec_ColorTable_h
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#define vtk_m_exec_ColorTable_h
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#include <vtkm/VirtualObjectBase.h>
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namespace vtkm
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{
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namespace exec
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{
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class VTKM_ALWAYS_EXPORT ColorTableBase : public vtkm::VirtualObjectBase
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{
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public:
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inline VTKM_EXEC vtkm::Vec<float, 3> MapThroughColorSpace(double) const;
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VTKM_EXEC virtual vtkm::Vec<float, 3> MapThroughColorSpace(const vtkm::Vec<float, 3>& rgb1,
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const vtkm::Vec<float, 3>& rgb2,
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float weight) const = 0;
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inline VTKM_EXEC float MapThroughOpacitySpace(double value) const;
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double const* ColorNodes = nullptr;
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vtkm::Vec<float, 3> const* RGB = nullptr;
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double const* ONodes = nullptr;
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float const* Alpha = nullptr;
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vtkm::Vec<float, 2> const* MidSharp = nullptr;
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vtkm::Int32 ColorSize = 0;
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vtkm::Int32 OpacitySize = 0;
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vtkm::Vec<float, 3> NaNColor = { 0.5f, 0.0f, 0.0f };
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vtkm::Vec<float, 3> BelowRangeColor = { 0.0f, 0.0f, 0.0f };
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vtkm::Vec<float, 3> AboveRangeColor = { 0.0f, 0.0f, 0.0f };
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bool UseClamping = true;
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private:
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inline VTKM_EXEC void FindColors(double value,
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vtkm::Vec<float, 3>& first,
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vtkm::Vec<float, 3>& second,
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float& weight) const;
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};
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class VTKM_ALWAYS_EXPORT ColorTableRGB : public ColorTableBase
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{
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public:
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inline VTKM_EXEC vtkm::Vec<float, 3> MapThroughColorSpace(const vtkm::Vec<float, 3>& rgb1,
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const vtkm::Vec<float, 3>& rgb2,
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float weight) const final;
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};
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class VTKM_ALWAYS_EXPORT ColorTableHSV : public ColorTableBase
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{
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public:
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inline VTKM_EXEC vtkm::Vec<float, 3> MapThroughColorSpace(const vtkm::Vec<float, 3>& rgb1,
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const vtkm::Vec<float, 3>& rgb2,
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float weight) const final;
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};
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class VTKM_ALWAYS_EXPORT ColorTableHSVWrap : public ColorTableBase
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{
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public:
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inline VTKM_EXEC vtkm::Vec<float, 3> MapThroughColorSpace(const vtkm::Vec<float, 3>& rgb1,
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const vtkm::Vec<float, 3>& rgb2,
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float weight) const final;
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};
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class VTKM_ALWAYS_EXPORT ColorTableLab : public ColorTableBase
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{
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public:
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inline VTKM_EXEC vtkm::Vec<float, 3> MapThroughColorSpace(const vtkm::Vec<float, 3>& rgb1,
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const vtkm::Vec<float, 3>& rgb2,
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float weight) const final;
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};
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class VTKM_ALWAYS_EXPORT ColorTableDiverging : public ColorTableBase
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{
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public:
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inline VTKM_EXEC vtkm::Vec<float, 3> MapThroughColorSpace(const vtkm::Vec<float, 3>& rgb1,
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const vtkm::Vec<float, 3>& rgb2,
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float weight) const final;
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};
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}
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}
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#include <vtkm/exec/ColorTable.hxx>
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#endif
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