vtk-m/vtkm/rendering/WorldAnnotator.cxx
2017-09-22 09:32:21 -07:00

69 lines
2.6 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//
// Copyright 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2016 UT-Battelle, LLC.
// Copyright 2016 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#include <vtkm/rendering/LineRenderer.h>
#include <vtkm/rendering/TextRenderer.h>
#include <vtkm/rendering/WorldAnnotator.h>
namespace vtkm
{
namespace rendering
{
WorldAnnotator::WorldAnnotator(const vtkm::rendering::Canvas* canvas)
: Canvas(canvas)
{
}
WorldAnnotator::~WorldAnnotator()
{
}
void WorldAnnotator::AddLine(const vtkm::Vec<vtkm::Float64, 3>& point0,
const vtkm::Vec<vtkm::Float64, 3>& point1,
vtkm::Float32 lineWidth,
const vtkm::rendering::Color& color,
bool vtkmNotUsed(inFront)) const
{
vtkm::Matrix<vtkm::Float32, 4, 4> transform =
vtkm::MatrixMultiply(Canvas->GetProjection(), Canvas->GetModelView());
LineRenderer renderer(Canvas, transform);
renderer.RenderLine(point0, point1, lineWidth, color);
}
void WorldAnnotator::AddText(const vtkm::Vec<vtkm::Float32, 3>& origin,
const vtkm::Vec<vtkm::Float32, 3>& right,
const vtkm::Vec<vtkm::Float32, 3>& up,
vtkm::Float32 scale,
const vtkm::Vec<vtkm::Float32, 2>& anchor,
const vtkm::rendering::Color& color,
const std::string& text) const
{
vtkm::Vec<vtkm::Float32, 3> n = vtkm::Cross(right, up);
vtkm::Normalize(n);
vtkm::Matrix<vtkm::Float32, 4, 4> transform = MatrixHelpers::WorldMatrix(origin, right, up, n);
transform = vtkm::MatrixMultiply(Canvas->GetModelView(), transform);
transform = vtkm::MatrixMultiply(Canvas->GetProjection(), transform);
Canvas->AddText(transform, scale, anchor, color, text);
}
}
} // namespace vtkm::rendering