This package provides library(graphviz), a binding to the layout part of the graphviz libraries. It lays out a graph given in the DOT language and returns the positions of the nodes and the routes of the edges as a Prolog term. Nothing is rendered: the nodes and labels are drawn by the application, which tells graphviz only their size. This is used by library(graphviz_layout) of xpce.
The package needs the graphviz development files (libgvc, libcgraph
and libcdt). If the dot layout plugin can be linked, it is the only
plugin used, and graphviz loads no plugins dynamically.
Graphviz is licensed under the Eclipse Public License 1.0.