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       mingle - fast edge bundling


       mingle [ options ] [ -o outfile ] [ files ]


       mingle  takes  as  input  a  graph  in  DOT format with node position information (the pos
       attribute) and bundles the edges.


       The following options are supported:

       -m k   indicates which method to use for bundling. A value of 0 corresponds  to  a  force-
              directed  bundling.   A  value  of  2  uses  a cluster plus ink saving approach. If
              available, a value 1 denotes an agglomerative ink saving method. Normally, the last
              is the default.

       -a k   specifies  the  maximum  turning  angle,  in  degrees, as a non-negative real.  The
              larger the value, the more edges  may  bend.  If  the  value  is  0,  there  is  no
              limitation  on  the turning angle. The default is 40.  The parameter is not used in
              force-directed bundling.

       -c v   specifies which compatability measure to use. The value  0,  the  default,  uses  a
              distance  metric,  while  a  value of 1 relies on full compatability. This value is
              only used in force-directed bundling.

       -i k   gives the maximum number of iterative divisions of edges allowd  in  force-directed
              bundling.  The default is 4.

       -k k   gives  the number of neighbors to be used in forming a nearest neighbor graph. This
              parameter is only used in the agglomerative method. The default is 10.

       -K k   is a positive real value giving the force constant used in force-directed bundling.
              By default, the value is determined automatically.

       -o file
              puts output in file. Default output is stdout

       -p k   Except  for  the  force-directed method, bundling minimizes $ink * (k - cos(turning
              angle))$. The larger the value of k, the less emphasis is  put  on  avoiding  sharp
              turning angles and the faster the bundling.  The default value is -1.

       -r k   is  a  non-negative  integer  giving  the  maximum  recursion  level  used  in  the
              agglomerative method. The default is 100.

       -T fmt specifies the output format. At present, the output is always in the DOT format. If
              fmt  is  "simple", the output is a simple, schematic representation of the drawing.
              Only the node positions and edges are retained from the original graph. If  fmt  is
              "gv", the drawing information is attached to the input graph.

       -v k   determines  the  verbose  level  used  for  tracing  the  algorithm. The value k is
              optional; if not provided, the value 1 is used.

       -?     Print usage and exit.


       At present, mingle does not handle graphs with loops or directed multiedges. So,  a  graph
       with edges a -> b and b -> a is acceptable, but not if it has edges a -> b and a -> b or a
       -- b and a -- b.


       Emden R. Gansner <>, Yifan Hu <>


       sfdp(1), neato(1), gvpr(1)

       Emden R. Gansner,  Yifan  Hu,  Stephen  C.  North  and  Carlos  Scheidegger,  ``Multilevel
       Agglomerative  Edge  Bundling  for  Visualizing Large Graphs'', IEEE Pacific Visualization
       Symposium PacificVis, pp. 187‐194, 2011.

                                          16 August 2013                                MINGLE(1)