Eu estava instalando CalculiX software FEM e acho que ele foi instalado com sucesso e o arquivo executável foi criado (o executável chamado cgx ) . Então, quando eu emito o comando ./cgx, , ele me deu a seguinte saída:
on a Linux machine, nodename scale04, release 4.4.0-98-generic, version #121-Ubuntu SMP Tue Oct 10 14:24:03 UTC 2017, machine x86_64
--------------------------------------------------------------------
CALCULIX
- GRAPHICAL INTERFACE -
Version 2.13
A 3-dimensional pre- and post-processor for finite elements
Copyright (C) 1996, 2002 Klaus Wittig
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; version 2 of
the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
usage: cgx [parameter] filename [ccxfile]
Parameters:
-a auto-mode, geometry file derived from a cad-file must be provided
-b build-mode, geometry (command) file must be provided
-bg background, suppress creation of graphic output
otherwhise as -b, geometry (command) file must be provided
-c read an solver input file (ccx)
-duns2d read duns result files (2D)
-duns3d read duns result files (3D)
-foam read openFoam result files
-isaac2d [-pref<val> -tref<val> -R<val>] read isaac result files (2D)
-isaac3d [-pref<val> -tref<val> -R<val>] read isaac result files (3D)
-f06 read Nastran f06 file
-ng read Netgen native format
-step read a step file (only points and lines)
-stepsplit read step and write its single parts to the filesystem
-stl read stl triangles
-v (default) read a result file in frd-format and optional a solver
input file (ccx) which provides the sets and loads used in the
calculation.
special purpose options:
-mksets make node-sets from *DLOAD-values (setname:''_<value>'')
-read forces the program to read the complete result-file at startup
que, em resumo, instrui você a adicionar a opção e fazer referência aos arquivos de entrada para usar o software CalculiX. Infelizmente quando eu tento um dos exemplos que já forneci no tutorial eu recebi a seguinte mensagem de erro:
Xlib: extension "RANDR" missing on display ":1".
on a Linux machine, nodename scale04, release 4.4.0-98-generic, version #121-Ubuntu SMP Tue Oct 10 14:24:03 UTC 2017, machine x86_64
parameters:2 arguments:1
GLUT: Fatal Error in cgx: OpenGL GLX extension not supported by display: :1
Passei um dia inteiro tentando consertar isso, mas sem valor Então, qualquer ajuda seria apreciada Agradecemos antecipadamente **