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eutectic mesh generator (Genesis/Neuron)

Rogene M. Eichler West rogene at lenti.med.umn.edu
Tue Jul 25 15:10:10 EST 1995



We would like to announce the beta version of a mesh generator which
converts from Eutectic datafiles to Custom/Genesis/Neuron scripts.

The  mesh generator takes Eutectic files as inputs. 

The outputs include:
	       options to format the connectivity/radius/length info as
             		custom, Genesis, or Neuron files
	       a geometry file for GL graphics
	       L per compartment
	       L from soma
	       distance (in cm) from soma
	       topology (graph) data

Features include:
        Error checking for 
                           - unrecognized point types
                           - reordering of *TO/*AE points when multiple
                                    slides were needed for tracing the
                                    complete cell
                           - duplicate coordinates which can generate
                                    zero values for length
                           - tree balance verification (*TO/NE/BP errors which
                                    arise when users edit their eutectic files)
        User defined mesh criteria for Rm, Ri, max L, max radius
        Statistics on the average L, max L, min L, max distance
        Implements Hines renumbering of the compartments
        Implements Eichler West renumbering, which is a method that I have
                           developed to minimize banding
        Statistics on the Eichler West renumbering, including the savings
                           in time and number of calculations required

I am just learning Genesis and Neuron, so the only weak part of the code
is the formatted output for genesis/neuron scripts. 

Due to my relative inexperience with these simulators, I would like to 
solicit some expert GENESIS/NEURON users as beta testers to provide 
suggestions for the most useful organization of the script files. 

If you would be interested in beta testing, please respond via email.

                        rogene at lenti.med.umn.edu

Thanks,

      -Rogene


Rogene M. Eichler West
Neuroscience
U of Minnesota



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