A pipeline to place labels at points in 3D space can be the following:<br>vtkVectorText -> vtkPolyData -> vtkFollower<br>you must call the vtkFollower SetCamera method to make the follower adjust its orientation according to the camera movement<br>
For better control it is good to add all the followers into a vtkCollection<br>As expected it is a slow method when placing too many followers on screen.<br><br>For an outline of an unstructured grid the simple vtkOutlineFilter can be used - which creates a box based on the grid bounds<br>
<br><br><br><br>-------------------------<br>Sergios Goudanis<br><br>Senior developer<br><a href="http://www.lookcfd.com">www.lookcfd.com</a><br>