From 29deffcf77e963ae81aec9f8cbc61b029f3052d5 Mon Sep 17 00:00:00 2001
From: Hamilton Kibbe <hamilton.kibbe@gmail.com>
Date: Fri, 5 Dec 2014 23:59:28 -0500
Subject: add ipc2581 primitives

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 doc/source/about.rst | 38 ++++++++++++++++++++++++++++++++++++++
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+About PCB Tools
+===============
+
+PCB CAM Files
+~~~~~~~~~~~~~
+
+PCB design (artwork) files are most often stored in `Gerber` files. This is
+a generic term that may refer to `RS-274X (Gerber) <http://en.wikipedia.org/wiki/Gerber_format>`_, 
+`ODB++ <http://en.wikipedia.org/wiki/ODB%2B%2B>`_ , or `Excellon <http://en.wikipedia.org/wiki/Excellon_format>`_
+files.  These file formats are used by the CNC equipment used to manufacutre PCBs.
+
+PCB Tools provides a set of utilities for visualizing and working with PCB design files
+in a variety of formats. PCB Tools currently supports the following file formats:
+
+- Gerber (RS-274X)
+- Excellon
+
+with planned support for IPC-2581, IPC-D-356 Netlists, ODB++ and more.
+
+Visualization
+~~~~~~~~~~~~~~
+.. image:: ../../examples/composite_top.png
+   :alt: Rendering Example
+
+The PCB Tools module provides tools to visualize PCBs and export images in a variety of formats,
+including SVG and PNG.
+
+
+Future Plans
+~~~~~~~~~~~~
+We are working on adding the following features to PCB Tools:
+
+- Design Rules Checking
+- Editing
+- Panelization
+
+
+
-- 
cgit