vtk_gui
vtk_gui_refresh
Usage:
vtk_gui_refresh 
Description:   
Clear the local cache, redraw all the open canvas and re-cache their contents (set). 
Example: 
vtk_gui_refresh
Returns:       
Nothing
Usage:
vtk_gui_refresh 
Description:   
Clear the local cache, redraw all the open canvas and re-cache their contents (set). 
Example: 
vtk_gui_refresh
Returns:       
Nothing