But, and this applies to text as well, once you've
printed them out and
scanned them back in again, you've lost that structure. The scanner
produces a bitmap (probably a slightly distorted bitmap as noting is
perfect). It is _very_ difficult to automatically recover that structure
(would you like to write a program that analyses a bitmap and finds
component symbols in it?)
Such programs do exist, however. Most of the fancy electronics-oriented
CAD packages have "schematic capture" modules. And, of course, such
packages run into the many kilobucks.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW:
http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927