Function printText

examples/segmentation/example_supervoxels.cpp:512–542

void printText (pcl::visualization::PCLVisualizer::Ptr viewer)
{
  std::string on_str = "on";
  std::string off_str = "off";
  if (!viewer->updateText ("Press (1-n) to show different elements (h) to disable this", 5, 72, 12, 1.0, 1.0, 1.0,"hud_text"))
    viewer->addText ("Press 1-n to show different elements", 5, 72, 12, 1.0, 1.0, 1.0,"hud_text");
  
  std::string temp = "(1) Voxels currently " + ((show_voxel_centroids)?on_str:off_str);
  if (!viewer->updateText (temp, 5, 60, 10, 1.0, 1.0, 1.0, "voxel_text"))
    viewer->addText (temp, 5, 60, 10, 1.0, 1.0, 1.0, "voxel_text");
  
  temp = "(2) Supervoxels currently "+ ((show_supervoxels)?on_str:off_str);
  if (!viewer->updateText (temp, 5, 50, 10, 1.0, 1.0, 1.0, "supervoxel_text") )
    viewer->addText (temp, 5, 50, 10, 1.0, 1.0, 1.0, "supervoxel_text");
  
  temp = "(3) Graph currently "+ ((show_graph)?on_str:off_str);
  if (!viewer->updateText (temp, 5, 40, 10, 1.0, 1.0, 1.0, "graph_text") )
    viewer->addText (temp, 5, 40, 10, 1.0, 1.0, 1.0, "graph_text");
  
  temp = "(4) Voxel Normals currently "+ ((show_normals)?on_str:off_str);
  if (!viewer->updateText (temp, 5, 30, 10, 1.0, 1.0, 1.0, "voxel_normals_text") )
    viewer->addText (temp, 5, 30, 10, 1.0, 1.0, 1.0, "voxel_normals_text");
  
  temp = "(5) Supervoxel Normals currently "+ ((show_supervoxel_normals)?on_str:off_str);
  if (!viewer->updateText (temp, 5, 20, 10, 1.0, 1.0, 1.0, "supervoxel_normals_text") )
    viewer->addText (temp, 5, 20, 10, 1.0, 1.0, 1.0, "supervoxel_normals_text");
  
  temp = "(0) Showing "+ std::string((show_refined)?"":"UN-") + "refined supervoxels and normals";
  if (!viewer->updateText (temp, 5, 10, 10, 1.0, 1.0, 1.0, "refined_text") )
    viewer->addText (temp, 5, 10, 10, 1.0, 1.0, 1.0, "refined_text");
}

void removeText (pcl::visualization::PCLVisualizer::Ptr viewer)
{