Method markPoint

visualization/src/image_viewer.cpp:792–818

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void
pcl::visualization::ImageViewer::markPoint (
    std::size_t u, std::size_t v, Vector3ub fg_color, Vector3ub bg_color, double radius,
    const std::string &layer_id, double opacity)
{
  // Check to see if this ID entry already exists (has it been already added to the visualizer?)
  auto am_it = std::find_if (layer_map_.begin (), layer_map_.end (), LayerComparator (layer_id));
  if (am_it == layer_map_.end ())
  {
    PCL_DEBUG ("[pcl::visualization::ImageViewer::markPoint] No layer with ID='%s' found. Creating new one...\n", layer_id.c_str ());
    am_it = createLayer (layer_id, getSize ()[0] - 1, getSize ()[1] - 1, opacity, false);
  }

  vtkSmartPointer<context_items::Point> point = vtkSmartPointer<context_items::Point>::New ();
  point->setColors (fg_color[0], fg_color[1], fg_color[2]);
  point->setOpacity (opacity);

  vtkSmartPointer<context_items::Disk> disk = vtkSmartPointer<context_items::Disk>::New ();
  disk->setColors (bg_color[0], bg_color[1], bg_color[2]);
  disk->setOpacity (opacity);

  point->set (static_cast<float> (u), static_cast<float> (v));
  disk->set (static_cast<float> (u), static_cast<float> (v), static_cast<float> (radius));

  am_it->actor->GetScene ()->AddItem (disk);
  am_it->actor->GetScene ()->AddItem (point);
}

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void