This is my initial implementation of Pie Menus for NeWS, in PostScript.  The
choices of a Pie Menu are positioned in a circle around the cursor, so that the
direction of movement makes the selection.  There is an inactive region in the
menu center where the cursor starts out, and the regions corresponding to the
choices are wedge shaped, like the slices of a pie:  each slice is adjacent to
the cursor, but in a different direction.  Moving the cursor further out from
the menu center increases the angular precision.  Pie Menu choices may be
positioned in intuitivly correct directions, with opposite choices in opposite
directions, and other natural arrangments. Pie Menus are easy to learn, using
"muscle memory", because you remember directions, not order. Because you don't 
need to look at the menu to choose a direction, you can mouse ahead dependably 
with menus you're familiar with.

More information about Pie Menus if forthcoming, but right now I want to get the
initial implementation out so that people can use them.  Just load the following
file into a NeWS server with psh, and try them out.  They replace the default
menu class, so that subsequently made menus will be Pie Menus.  I welcome your 
questions, comments, and suggestions.  

    -Don

    Spoken: Don Hopkins
    Net: don@brillig.umd.edu, ...!seismo!mimsy!don
    Mail: 5819 Ruatan St., College Park, Md. 20740, USA

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