LaGriT runs on the command line as interactive mode or with an input command file. LaGriT will write two output files upon completion, by default they are lagrit.out (summary and reports for each command) and lagrit.log (saved commands).
Run on the command line with either method:
lagrit
lagrit < input_commands.lgi
Run the Tutorial and see Example command files at Tutorials and Examples
To get started with the commands, the user must create a mesh object. The mesh object can be defined by reading in a mesh file, or by creating one.
To create an empty mesh object use the command cmo/create mesh_name.
There is no limit on the number of Mesh Objects that can be defined, but at any time there is only one ‘current’ or ‘active’ Mesh Object. For more advanced problems, such as those requiring more than one Mesh Object or requiring extensions to the basic Mesh Object template, the Mesh Object(s) is(are) manipulated via the cmo commands.
For example, additional user defined attributes may be added to a Mesh Object by using the cmo/addatt command, or the ‘active’ Mesh Object can be changed using the cmo/select command.
This example session reads 2 mesh files into 2 mesh objects mo_tet and cmo_1. The command cmo/list reports all mesh objects including the default template and the 2 new mesh objects. The last mesh object created is the current mesh object.
The command cmo / status / -all- / brief gives a brief description of each mesh object.
The command finish will exit the command line interface. A command file MUST have a finish for a clean exit.
The following is an example of the screen output during a session, this will also be recorded in file lagrit.out
read / avs / tet.inp / mo_tet
read / avs / test_tet_small.inp / cmo_1
cmo / list
The current-mesh-object(CMO) is: cmo_1
0 Mesh Object name: -default-
1 Mesh Object name: mo_tet
2 Mesh Object name: cmo_1
cmo / status / -all- / brief
The current-mesh-object(CMO) is: cmo_1
1 Mesh Object name: mo_tet
number of nodes = 1110 number of elements = 5031
dimensions geometry = 3 element type = tet
dimensions topology = 3 4 nodes 4 faces 6 edges
boundary flag = 16000000 status = inactive
2 Mesh Object name: cmo_1
number of nodes = 5 number of elements = 2
dimensions geometry = 3 element type = tet
dimensions topology = 3 4 nodes 4 faces 6 edges
boundary flag = 16000000 status = active
finish
The output file lagrit.out will save the same information you see on the screen while running LaGriT. The output file lagrit.log will save the commands and you can copy this file and possibly edit to run again.
% cat lagrit.log read/avs/tet.inp/mo_tet read/avs/test_tet_small.inp/cmo_1 cmo/list cmo/status/-all-/brief finish