functions in pl3d.i - c

             cage3  
          or cage3, onoff  
 
     Toggle the cage display.  If ONOFF is non-nil and non-zero,  
     turn on the cage.  If ONOFF is zero, turn off the cage.  
     The cage draws a rectangular box "behind" the 3D object and  
     attempts to put ticks and labels around the edge of the box.  

interpreted function, defined at i/pl3d.i   line 982  

             clear3  
 
     Clear the current 3D display list.  

interpreted function, defined at i/pl3d.i   line 714