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.\" Hey, EMACS: -*- nroff -*-
.\" First parameter, NAME, should be all caps
.\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
.\" other parameters are allowed: see man(7), man(1)
.TH SPRINGGRAPH 1 "September 5, 2005"
.\" Please adjust this date whenever revising the manpage.
.\"
.\" Some roff macros, for reference:
.\" .nh disable hyphenation
.\" .hy enable hyphenation
.\" .ad l left justify
.\" .ad b justify to both left and right margins
.\" .nf disable filling
.\" .fi enable filling
.\" .br insert line break
.\" .sp <n> insert n+1 empty lines
.\" for manpage-specific macros, see man(7)
.SH NAME
springgraph \- renders a graph from a .dot file
.SH SYNOPSIS
.B springgraph [OPTIONS] < input-file.dot > output-file.png
.br
.SH DESCRIPTION
Springgraph will read in a .dot file description of a graph, which,
for each node, specifies its name and which other nodes it is
connected to, and then renders a graph. The output is a PNG
file. Each node is drawn as an
ellipse, and each connection is drawn as an arrow. The node placement
is a result of all of the nodes moving away from each other, while all
nodes which are connected move toward each other. This movement is
repeated until it stabilizes.
Springgraph was written as an alternative to neato, which is part of
graphviz. It attempts to read the same .dot files used by graphviz,
but currently only supports a limited number of node attributes (label
and fillcolor) and can only handle two nodes per edge definition ("node1 ->
node2", not "node1 -> node2 -> node3").
.SH OPTIONS
\fIspringgraph\fP
accepts the following options:
.TP 16
.B \-p
Create a file that can be rendered with POV-Ray
.TP 16
.B \-v
create a VRML file
.TP 16
.B \-s
this option specifies the scale. All of the node locations
are multiplied by this. Increase the scale to eliminate node
overlaps. Decrease the scale to make the graph smaller.
.TP 16
.B \-t
make the background of the resulting image transparent.
.TP 16
.B \-b
set background color of image, specify it in the form RRGGBB,
in hex digits, e.g. FFFFFF is white, 000000 is black, FF0000
is red, ...
.TP 16
.B \-l
set the line color, same format as the background color
.TP 16
.B \-h
display usage synopsis
.SH EXAMPLE
digraph {
"rene" -> "myon";
"mvo" -> "rene";
}
.SH SEE ALSO
neato(1)
sig2dot(1)
http://www.graphviz.org/Documentation.php
http://www.graphviz.org/cvs/doc/info/lang.html
.SH AUTHOR
This manual page was written by Kevin M. Rosenberg <kmr@debian.org>,
for the Debian GNU/Linux system (but may be used by others).
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