Graphviz is a useful application that is able to open and view graphs that have been created in the Graphviz dot language. Since it is not an editor Graphviz is not able to alter the data.
The Graphviz viewer is able, however, to set various global Graphviz attributes. This is just like adding a edge or a node statement, but the changes will not affect any node or edge that does not set the attribute explicitly.
To see the role and a brief description of an attribute simply click on it. To modify an attribute value, double click on the value and make the adjustment.
Graphviz is using the dot layout by default. To change to a different layout, go to the list of graph attributes and look for the layout attribute.
Here are some key features of "Graphviz":
Document-based GUI with the Macintosh look-and-feel:
· Preview and zoom graphs, from 12.5% to 800%.
· Pan the graph with the hand cursor.
· Tweak settings with a drawerful of switches and component defaults, and see the effect immediately.