mgenrec(1)       U.S. Geological Survey (wrdapp)       mgenrec(1)


NAME
       mgenrec - SUTRA utility program to generate a simple mesh

ABSTRACT
       MGENREC is an auxiliary program to generate several major data sets
       for SUTRA.  It can be used to generate the nodewise records (data
       set 14B), elementwise records (data set 15B), and element-incidence
       records (data set 22).  MGENREC assumes:  (1) a two-dimensional
       rectangular mesh composed of equal-sized rectangles, and (2)
       constant parameter values throughout the mesh region.  The generated
       data sets can be modified manually to obtain irregular elements,
       irregular regions, or non-constant parameters.

DATA REQUIREMENTS
       MGENREC requires four values to be input:

               NX    = Number of nodes along X-coordinate
               NY    = Number of nodes along Y-coordinate
               XL    = Total mesh length along X
               YL    = Total mesh length along Y

       These values are read, free-format, from the standard input unit
       (normally the keyboard).  By free-format it is meant that values may
       be input in any columns as long as they are input in order (i.e. NX,
       NY, XL, YL); they are valid (integer values for NY and NX, floating
       point values for XL and YL); and a blank(s), a comma, or a carriage
       return separates each value.

OUTPUT OPTIONS
       MGENREC creates the file MESHOUT.DAT in the user's current
       directory.

DOCUMENTATION
       This program is provided without documentation.

CONTACTS
       Operation:
          U.S. Geological Survey
          Office of Hydrologic Research
          Clifford I. Voss
          431 National Center
          Reston, VA  20192

          cvoss@usgs.gov

       Distribution:
          U.S. Geological Survey
          Hydrologic Analysis Software Support Program
          437 National Center
          Reston, VA 20192

          h2osoft@usgs.gov

       Official versions of U.S. Geological Survey water-resources analysis



                            7 Jul 1998                          1





mgenrec(1)       U.S. Geological Survey (wrdapp)       mgenrec(1)


       software are available for electronic retrieval via the World Wide
       Web (WWW) at:

                  http://water.usgs.gov/software/

       and via anonymous File Transfer Protocol (FTP) from:

                  water.usgs.gov (path: /pub/software).

       The WWW page and anonymous FTP directory from which the SUTRA
       software can be retrieved are, respectively:

                  http://water.usgs.gov/software/sutra.html
                                --and--
                  /pub/software/ground_water/sutra

       If you would like to obtain the price of and (or) order paper copies
       of USGS reports, contact the USGS Branch of Information Services at:

                  U.S. Geological Survey
                  Branch of Information Services
                  Denver Federal Center, Box 25286
                  Denver CO 80225-0286

       To inquire about Open-File Reports or Water-Resources Investigations
       Reports:
                  Tel: 303-202-4210; Fax 303-202-4695

       To inquire about other USGS reports:
                  Tel: 303-202-4700; Fax 303-202-4693

SEE ALSO
       mgenrad(1) - SUTRA utility program to generate a simple mesh
       pbcgen(1) - SUTRA utility program to generate hydrostatic
                   pressure
       sutra(1) - Saturated and (or) unsaturated, constant or
                  variable-density fluid flow, and solute or energy
                  transport (2-dimensional finite-element code)
       sutraplt(1) - Graphics postprocessor program for SUTRA


















                            7 Jul 1998                          2