               Planned Enhancements for !PolyDraw 

     Listed in the order we thought of them, not necessarily order 
     of implementation
         
  Date
 Requested

 7 Jul 97   keyboard shortcuts for selection of 3D plot type

 7 Jul 97   ability to colour the 3D solid by 'plane'

 7 Jul 97   ability to colour the 3D solid by component for those
            polyhedra which can be viewed as made of several simpler ones
             for example the stella octangula is made of 2 tetrahedra  

 7 Jul 97   improve the plotting algorithm to cope properly with non-convex
             polyhedra 

 7 Jul 97   Allow Drawfiles to be sent directly to the printer
            either from a menu or by pressing the 'PRINT' key
            from 3D and Net window.

 7 Jul 97   Make menu for 'Text' window to control what is shown
              may want to add contents of :Comment

 7 Jul 97   Calculate the dual for a convex polyhedron
              if the name is not present in the datafile 

12 Jul 97   add symmetry info to the datafiles, & option to draw axes

 7 Dec 97  Change plotting algorithm to allow faces to meet planes along
           a line joining 2 vertices of the plane, instead of just along the
           edges.

 6 Jul 98  add option for VRML output format

 12 Apr 99 add click on a vertex, face, edge & say what rotational symmetry 
           (if any) about that point, option to rotate to look down that axis

 12 Apr 99 display rotational symmetry axes?

 12 Apr 99 allow selections on size of rotational symmetry

 12 Apr 99 allow pyramidal decomposition of solids  (face to centre)

 12 Apr 99 make Extra Disc 4 tranforming from one polyhedron to another
             e.g.cube to octahedron showing 7 intermadiate stages

 12 Apr 99 add symmetry to the Type line

 12 Apr 99 add space group to Type line