69 lines
2.4 KiB
C++
69 lines
2.4 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 Sandia Corporation.
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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-AC04-94AL85000 with Sandia Corporation,
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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/ColorBarAnnotation.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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ColorBarAnnotation::ColorBarAnnotation()
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{
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}
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ColorBarAnnotation::~ColorBarAnnotation()
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{
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}
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void ColorBarAnnotation::SetRange(const vtkm::Range& range, vtkm::IdComponent numTicks)
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{
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std::vector<vtkm::Float64> positions, proportions;
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this->Axis.SetMinorTicks(positions, proportions); // clear any minor ticks
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for (vtkm::IdComponent i = 0; i < numTicks; ++i)
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{
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vtkm::Float64 prop = static_cast<vtkm::Float64>(i) / static_cast<vtkm::Float64>(numTicks - 1);
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vtkm::Float64 pos = range.Min + prop * range.Length();
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positions.push_back(pos);
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proportions.push_back(prop);
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}
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this->Axis.SetMajorTicks(positions, proportions);
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}
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void ColorBarAnnotation::Render(const vtkm::rendering::Camera& camera,
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const vtkm::rendering::WorldAnnotator& worldAnnotator,
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vtkm::rendering::Canvas& canvas)
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{
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vtkm::Bounds bounds(vtkm::Range(-0.88, +0.88), vtkm::Range(+0.87, +0.92), vtkm::Range(0, 0));
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canvas.AddColorBar(bounds, this->ColorTable, true);
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this->Axis.SetColor(vtkm::rendering::Color(1, 1, 1));
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this->Axis.SetLineWidth(1);
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this->Axis.SetScreenPosition(bounds.X.Min, bounds.Y.Min, bounds.X.Max, bounds.Y.Min);
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this->Axis.SetMajorTickSize(0, .02, 1.0);
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this->Axis.SetMinorTickSize(0, 0, 0); // no minor ticks
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this->Axis.SetLabelAlignment(TextAnnotation::HCenter, TextAnnotation::Top);
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this->Axis.Render(camera, worldAnnotator, canvas);
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}
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}
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} // namespace vtkm::rendering
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