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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.
64 lines
1.9 KiB
C++
64 lines
1.9 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 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 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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#include <vtkm/rendering/Mapper.h>
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namespace vtkm
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{
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namespace rendering
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{
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Mapper::~Mapper()
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{
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}
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void Mapper::SetActiveColorTable(const vtkm::cont::ColorTable& colorTable)
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{
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constexpr vtkm::Float32 conversionToFloatSpace = (1.0f / 255.0f);
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vtkm::cont::ArrayHandle<vtkm::Vec<vtkm::UInt8, 4>> temp;
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colorTable.Sample(1024, temp);
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this->ColorMap.Allocate(1024);
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auto portal = this->ColorMap.GetPortalControl();
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auto colorPortal = temp.GetPortalConstControl();
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for (vtkm::Id i = 0; i < 1024; ++i)
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{
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auto color = colorPortal.Get(i);
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vtkm::Vec<vtkm::Float32, 4> t(color[0] * conversionToFloatSpace,
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color[1] * conversionToFloatSpace,
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color[2] * conversionToFloatSpace,
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color[3] * conversionToFloatSpace);
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portal.Set(i, t);
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}
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}
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void Mapper::SetLogarithmX(bool l)
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{
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this->LogarithmX = l;
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}
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void Mapper::SetLogarithmY(bool l)
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{
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this->LogarithmY = l;
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}
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}
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}
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