Request for PD plotting package

[Parameswaran Ramanathan]

I am interested in the availability of a public domain plotting package
for drawing graphs with the following features: 

  1. X windows and/or Sunview support.

  2. Capable of generating encapsulated postscript
     (not a bitmap dump of the screen).
-- 
Parmesh Ramanathan
parmesh at dip.eecs.umich.edu