Use Altair Compose commands to interact with Flux


This section presents the different commands allowing the interaction between Flux and Compose using OML language.


In the following table, the steps to follow in Compose for a nominal scenario are presented, an example is available in the installation path : INSTALLATION_FOLDER\flux\Flux\Api\win64\Compose\flux_mp.oml

Copy and paste this file in your working directory, the other file, flux_mp.bat starts the first one.
  1. Add the corresponding toolbox FluxCompose.dll as following:
    % Install Flux component : INSTALLFLUX env variable must exist
    InstallFlux = getenv('INSTALLFLUX')
  2. To start with the commands, the flux server must be configured.
    % # Create local Flux server ('FLUX2D','FLUX3D','FLUXSKEWED','FLUXPEEC') with dynamic memory in english with 5mn IDLE: 
    serverUid = FMP_startLocaleServer('FLUX2D','../','MEMSIZN3=0','CAO_DEFLAN=2','MAX_IDLE=300');
    %% MEMSIZN3 is setted to 0 for dynamic memory
    %% CAO_DEFLAN=2 is setted to 2 for english language, set it to 1 for french language
    %% MAX_IDLE is setted to 300 for a 5mn time-out if there are no responses from Flux
Attention: when using the oml example, the file will write some files (Flux log …), that is why the working directory of Compose must not be: C:\Program Files\.....

Command example (OML language)

  • Configure the server (add more options with the server arguments described above).

serverUid = FMP_startLocaleServer('FLUX2D','../','MEMSIZN3=0','CAO_DEFLAN=2','MAX_IDLE=300');
Note: To use dynamic memory in Flux, enter '0' for the memory value.
  • Execute a python or a pyFlux command
FMP_executeJythonCommand(serverUid, 'newProject()')

FMP_executeJythonCommand(serverUid, 'Face[1].region=RegionFace[“IRON”]')

FMP_executeJythonCommand(serverUid, 'closeProject()')

FMP_executeJythonCommand(serverUid, 'PythonOrPyfluxCommand()')

FMP_executeJythonCommand(serverUid, 'executeBatchSpy('')')
  • Set an array double
  • Get an array double
b = FMP_getJythonDoubleArrayValue(serverUid,'b')
  • Set an array integer
  • Get an array integer
d = FMP_getJythonIntArrayValue(serverUid,'d')
  • Set an array string
FMP_setJythonStringArrayValue(serverUid,'f',{'text one','text two'});
  • Get an array string
f = FMP_getJythonStringArrayValue(serverUid,'f')
Note: For this kind of command in python : Every single quote must be replaced by a double quote.
lastInstance = MeshLineArithmetic(name='10',
And in Compose this command must not contain any line withdrawal. The good Compose command for the following example :
FMP_executeJythonCommand(serverUid, 'lastInstance = MeshLineArithmetic(name="10",color=Color["White"],number=10)');

Use Python API in Compose environment

A Python file which may be used with Compose environment is available in INSTALLATION_FOLDER\flux\Flux\Api\Compose\