How to integrate Simlab python script(shell mesh creation) and hyper mesh TCL script(solid mesh creation)? how to combine both operations using OML-Python bridge & OML-TCL bridge?

Vaddi Vijay Kumar
Vaddi Vijay Kumar Altair Community Member
edited September 2022 in Community Q&A
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Answers

  • AlessioLibrandi
    AlessioLibrandi
    Altair Employee
    edited September 2022

    Please have a look at this article that may help you further.

    Greetings, Alessio Librandi

    ___________________________________

     

    Run a HyperMesh script (*.tcl) from SimLab Using a Python File and using batch commands.

     

    When a user tries to run the HyperMesh script from SimLab, the 'ALTAIR_HOME' env will be changed and it will conflict with the HyperMesh installation path.

    The conflict can be avoided using the below methods.

     

    1. Using the following Python code 

    CODE:

    #import subprocess module is used for accessing the system commands  import subprocess ,os  #To avoid the conflict between the SimLab and HyperMesh installation path store the ‘ALTAIR_HOME’ env in a python variable and clear the env.  Altair_Home = os.environ["ALTAIR_HOME"]  os.environ["ALTAIR_HOME"]=''  #Store the tcl script path and HyperMesh installation path in a python variable.  TCLScript = "./HM_Script.tcl"  hmBatchLoc = "./../hwdesktop/hm/bin/win64/hmbatch.exe"  #To start HyperMesh and execute the tcl script in batch mode use the below codes  Arg= hmBatchLoc+ " -tcl " + TCLScript  subprocess.call(Arg)  #After executing the tcl script restore back the ‘ALTAIR_HOME’ env  os.environ["ALTAIR_HOME"] = Altair_Home

     

    SAMPLE SCRIPT:

    import subprocess,os  Altair_Home = os.environ["ALTAIR_HOME"]  os.environ["ALTAIR_HOME"]=''  TCLScript = ""C:/Users/Documents/HyperMesh_Scripts/HM_Script.tcl"  hmBatchLoc = "C:/Program Files/Altair/HM_2021.2/hwdesktop/hm/bin/win64/hmbatch.exe"  Arg= hmBatchLoc+ " -tcl " + TCLScript  subprocess.call(Arg)  os.environ["ALTAIR_HOME"] = Altair_Home

      

    2. Using the following batch script 

    Use 'setlocal' and 'endlocal' batch commands as below to avoid this conflict.

     

    BATCH SCRIPT:

    REM To get the script file to be executed in SimLab

    set script_name=D:\\Script\\simlab.py

    REM To get the SimLab.bat location

    set simlab_bat=D:\\Altair\\SimLab_2022.1\\SimLab.bat

    REM To get the ALTAIR_HOME path and launch HyperMesh

    set ALTAIR_HOME=D:\\Altair\\Hw_2021

    set hmbatch=%ALTAIR_HOME%\\hwdesktop\\hm\\bin\\win64\\hmbatch.exe

    REM To localize the changes made to the variable 'ALTAIR_HOME'

    setlocal

    REM Launching SimLab.bat and executing the python script.

    call %simlab_bat% -auto %script_name% -nographics 

    REM To revert back the changes made to the variable.

    endlocal

    REM Launching HyperMesh and executing the tcl script.

    start %hmbatch% -nocommand -h -tcl %script_path%\HM_Script.tcl 

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