From the README file:
This is a set of macros for drawing high-quality line diagrams to
include in TeX, LaTeX, web, or similar documents, with support for
SVG and other formats. Fundamental electric circuit elements and
basic logic gates based on IEEE and European standards are included,
with several tools and examples of other types of diagrams. Elements
can be scaled or drawn in any orientation and are easy to modify.
The advantages and disadvantages of such a system are similar to those
of TeX itself, which is macro-based and non-WYSIWYG, with ordinary
The simplicity and power of m4 macros is employed to produce drawing
commands in the pic "little language," which is easy to read and
learn. The diagram is then automatically translated into TiKZ, PSTricks,
or other formats for processing by LaTeX or other applications.
Free, open-source interpreters for m4 and pic are readily available.
This process is well suited to line drawings requiring parametric
or conditional components, fine adjustment, significant geometric
calculations, repetition, or recursion. Arbitrary text or other
objects such as tables for formatting by LaTeX can be placed at will
in the diagram.
Changes in this version are summarized
Example diagrams can be viewed as
with links to the diagram sources, as
or as directly produced
with links to modified source files.
To draw your own diagrams using this method, you need the following
A pic interpreter:
The dpic interpreter was used to process these diagrams. Dpic produces
output in the following formats:
- TikZ PGF format (powerful, flexible, used with pdflatex)
- PSTricks format (powerful, flexible, used with LaTeX)
- SVG (for the web and Inkscape)
- encapsulated Postscript, raw text
- encapsulated Postscript, psfrag text
- xfig format
- PDF format, raw text
- basic LaTeX graphics (limited capabilities)
- LaTeX pict2e graphics
- eepicemu format
- mfpic format
- MetaPost format
The file processing sequence is typically to convert
m4 source to pic statements and then to PSTricks or TikZ drawing commands,
resulting in a .tex file for inclusion in a LaTeX document.
The dpic interpreter is available as a git repository at
PC executable is also available.
Several Linux distributions make versions of dpic available.
GNU pic, sometimes called gpic, is an alternative
that uses tpic specials
(see the readme file).
Some of the examples in this distribution require dpic.
An m4 macro processor:
Pic interpreters include basic macro facilities, but the circuit macros
and these examples extend the pic language using the more powerful m4
macro processor, which is available for Unix-like systems and Macs.
PC source and executables can be obtained at least as follows:
The Circuit_macro distribution:
The complete distribution is available
See the Circuit_macros
file for differences
are given in the
file and in the user's manual