AVS Modules							
 load mdn

NAME
          load mdn - display 

SUMMARY
          Name       load mdn

          Type       Data Input

          Inputs     None

          Outputs    AVS geometry

          Parameters    Name          Type    Default   Min   Max
                        ----          ----    -------   ---   ---
                        filename      string   null     null  null
                        time step     int       1        1    100
                        sphere divis  int       4        1     12

DESCRIPTION

  This is an enhancement of the load_md module already avaailable.
  This module is designed to read in one time step of data
  from a series of input files and provide the user with the 
  ability to select an individual time step or cycle through 
  a series of selected time steps.  Module has been used to 
  visualized the dynamics of a given set of molecules over a 
  specified period of time.  Module simply loads the user-specified 
  time steps of molecular coordinates and generates a sphere for 
  every molecule at the stored coordinates. This module has the option
  of specifying the data file through animated filename, for multiple
  files, or with a file browser widget for a single file. The default is
  to use the animated filename input port but if this value is set to
  $NULL then the module will use the file browser

INPUTS
   None       

PARAMETERS

OUTPUTS
       real 3D scalar field

EXAMPLE 1 - network with animated filename module
	
Sample network for load_mdn module.  Network implements the 
additional modules "animate_integer", "animate filename" and
" geometry viewer", in the following configuration.
(make animate integer port visible)

                          --------------------
                          | animated integer |
                          --------------------
                                    |
                                    |
                                    |------------
                                    |           |
                                    |           |
                                    |    --------------------
                                    |    | animate filename |
                                    |    --------------------
                                    |           |
                                    |           |
                                    |    --------
                                    |    |
                                    |    |
                           -------------------
                           |    load_mdn     |
                           -------------------
                                    |
                                    |
                           -------------------
                           | geometry viewer |
                           -------------------

EXAMPLE 2 - network without animated filename module, but with optional
		sphere module


                          --------------------
                          | animated integer |
                          --------------------
                                    |
                                    |
                                    |    
                           -------------------     -------------------
                           |    load_mdn     |     |      sphere     |
                           -------------------     -------------------
                                    |			    |
                                    +---------------------- |
                                    |
                           -------------------
                           | geometry viewer |
                           -------------------


RELATED MODULES
           animate filename - available via anonymous ftp from the
			      International AVS Center 
	   sphere - available via anonymous ftp from the International
	     	    AVS Center 
	 
SEE ALSO
           load_md


SAMPLE.DATA:

	Sample data file that load_md reads.  Data files are in the 
   following format:


(time step 0) (temperature) (number of particles in time step - n)
px1 py1 pz1 vu1 vv1 vw1
px2 py2 pz2 vu2 vv2 vw2
.
.
.
pxn pyn pzn vun vvn vwn

(time step 1) (temperature) (number of particles in time step - n)
px1 py1 pz1 vu1 vv1 vw1
px2 py2 pz2 vu2 vv2 vw2
.
.
.
pxn pyn pzn vun vvn vwn

(time step 2) (temperature) (number of particles in time step - n)
px1 py1 pz1 vu1 vv1 vw1
px2 py2 pz2 vu2 vv2 vw2
.
.
.
pxn pyn pzn vun vvn vwn


   where px,py,pz represent each particle's (or molecule's) position and
   vu,vv,vw represent each particle's velocity for the given time step.