NAME

       graphdraw - directed graph editor derived from drawtool

SYNOPSIS

       graphdraw ['X-params'] [file]

DESCRIPTION

       graphdraw  implements  a  graph  (node/edge)  editor.   graphdraw  adds  two  new  graphical  objects  to
       idraw/drawtool: an elliptical shaped node and a directed edge represented as  an  arrow  line.   Two  new
       tools  to  create  these objects are provided at the bottom of the toolbar.  The Node tool (selectable by
       the 'N' key) takes a single mouse click and creates a new graph node at the  click  location.   The  Edge
       tool  (selectable  by  the 'E' key) lets you drag a line to create a new graph edge.  If an edge is drawn
       from or to an existing node, it will connect itself to the node(s) and maintain that connectivity  during
       any  later movement of nodes or edges.  The Move tool will move edges or nodes, rubberbanding the rest of
       the graph, and redrawing any connected edges to maintain graph connectivity and edge alignment.

       Nodes contain a (initially empty) text string which can be edited by applying the Alter tool to  a  node.
       A  single  click on a node while on the Alter tool will create a text cursor, possibly within an existing
       text string, and allow editing of the text via the usual Emacs editing commands.   A  click  outside  the
       text terminates editing and causes the new text to be centered within the node.

       For Node and Edge objects, the Selection highlight mechanism has also been changed from the usual drawing
       of "handles" around a graphical object to a red foreground color.  When Nodes or Edges are selected, they
       turn red instead of handles being drawn around them.

       graphdraw documents are saved/restored in a readable text file.  Some of the tokens used in the text file
       are  specific  to  graphdraw  (and  possibly  any program derived from graphdraw).  graph drawings can be
       exported to other idraw/drawtool applications via the "Export Graphic" command  (under  the  File  menu).
       This  generates Postscript in a format that idraw can read back in, and programs like drawtool can import
       via "Import Graphic" (under the file menu).

       A Tools menu has been added to the set of pull-down menus to allow  switching  between  a  graph  editing
       toolbar and a generic graphics editing toolbar.

SEE ALSO

            drawtool, idraw

WEB PAGE

            http://www.ivtools.org/ivtools/graphdraw.html

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