
                            COPYRIGHT

  PCB, interactive printed circuit board design
  Copyright (C) 1994 Thomas Nau

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

  Contact addresses for paper mail and Email:
  Thomas Nau, Schlehenweg 15, 88471 Baustetten, Germany
  Thomas.Nau@medizin.uni-ulm.de

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From the manual:
Pcb is a handy tool for the X Window System build to design
printed circuit boards. All coordinate units are 1/1000 inch.
It implements the most needed features like:

- A layout consists of lines, rectangles, elements (lines, pins and arcs),
  vias and text information seperated into several layers. Each of them
  is identified by a unique name and color (if supported by your display).

- Multiple layers are supported in addition to an object package layer,
  an object pin layer and a via layer. 

- All files are 7 bit ASCII and might be preprocessed with any UNIX command
  that writes it's results to stdout (m4 preferred).

- The layout grid is anywhere in the range from 1/1000 inch up to 250/1000
  inch. The maximum is defined at compilation time.

- Zooming is supported.

- A copy of the current Data is saved in /tmp temporarily to
  ensure that nothing is lost during critical sections of the program.

Pcb is intended to be a simple tool without memory and time consuming
features like autorouter and autoplacement. It worked well for several
people on an Atari platform till it was ported to X11 in 1994.
Most of the settings can be specified by resources, passed in the
command-line or changed at runtime. Layout related settings are saved
together with the drawing elements.
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This directory hols all the source files to compile pcb. The only
requirements are:

1. An installation of X11 including header files and the athena
   widget library (HP users that means you) and.

2. An ANSI compiler (eg GCC)

3. A 'long' filesystem


For installing the release refer to the file 'INSTALL'.
For additional information to the manual 'pcb.man' or the texinfo file
'pcb.texi'.

If you are updating read the files Whats_new_in_*

Files:
    *.[chyl]               source file of distribution
    *_font                 default font files
    Pcb.ad.raw             template for default resources for application
    pcb.man.raw            man-page-template
    Imakefile              Imakefile of distribution
    create_sed_script.sh   called from Makefile to create a man page which
                           matches the defined directories
    demo                   a demo layout (graphic board for Atari ST with
                           a TI 34010 and Brooktree CLUT)
    scalefont              shell script example to scale font information
    dil*                   example files for elements
    README_FILES/*         this file, 'how to install',
                           a copy of the GNU Public License and some more
                           information

Please mail all bug reports, suggestions, additional features and element
file which you've created to

    Thomas.Nau@medizin.uni-ulm.de

so they can be inserted into following releases.


Have fun,

Thomas
