From: ellson <devnull@localhost>
Date: Fri, 15 Sep 2006 18:19:51 +0000 (+0000)
Subject: add instructions for finding out what formats a particular installation of dot supports.
X-Git-Tag: LAST_LIBGRAPH~32^2~5880
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d9677fe76407034efceafaf183eb12015f397052;p=graphviz

add instructions for finding out what formats a particular installation of dot supports.
---

diff --git a/cmd/dot/dot.1 b/cmd/dot/dot.1
index 481036356..f659131c4 100644
--- a/cmd/dot/dot.1
+++ b/cmd/dot/dot.1
@@ -106,6 +106,16 @@ draws undirected graphs using a ``spring'' model. It relies on a
 force-directed approach in the spirit of Fruchterman and Reingold
 (cf. Software-Practice & Experience 21(11), 1991, pp. 1129-1164).
 .SH OUTPUT FORMATS
+Dot uses an extensible plugin mechanism for its output renderers,
+so to see what output formats your installation of dot supports
+you can use ``dot -Txxx'' (where xxx is an unlikely format)
+and check the warning message.
+Also, The plugin mechanism supports multiple implementations
+of the output formats.
+To see what variants are available, use, for example: ``dot -Tpng:''
+and to force a particular variant, use, for example: ``dot -Tpng:gd''
+.P
+Traditionally, dot supports the following:
 \fB-Tps\fP (PostScript),
 \fB-Tsvg\fP \fB-Tsvgz\fP (Structured Vector Graphics),
 \fB-Tfig\fP (XFIG graphics),