Ansys Employee






Another way is to send commands from workbench that work with the native design point update process. You need to use an ACT extension. The XML can look like this:

And the main.py could look like this:

setup_handled = False
def write_my_data(task):
    global setup_handled
    if not task.Name == “Setup”: return
    if setup_handled == True: return    # callback is done many times for each task. Need to block all but one attempt
    dir = GetUserFilesDirectory()
    dir = dir.replace(“\\”,”/”)
    cmdprefix = ”’ExtAPI.ExtensionManager.GetExtensionByName(“My Extension”).ScriptScope.”'
    # when this function is called automatically during DP updates, through workflow callback, Mechanical will not have an extension loaded.
    dp = Parameters.GetActiveDesignPoint()
    for system in GetAllSystems():
        comp = sys.GetComponent(Name=’Setup’)
        cmdMech = cmdprefix + “write_nastran(\”” + dir + “\”,” + dp.Name + “,\”” + comp.DirectoryName + “\”)”
        setup = system.GetContainer(ComponentName=”Setup”)
        setup.SendCommand(Language=”Python”, Command=cmdMech)
    setup_handled = True

def dp_after_change():
    global setup_handled
    setup_handled = False

def write_nastran(dir, dp, solDir):
    # executed within Mechanical
    import os
    for analysis in ExtAPI.DataModel.Project.Model.Analyses:
        path = analysis.WorkingDir    # solution directory
        d = os.path.dirname(path)
        d2 = os.path.dirname(d)    # need to do dirname() twice since the path ends in a backslash
        sysDir = os.path.basename(d2)
        if solDir == sysDir:
            from Ansys.ACT.Automation.Mechanical import NastranExportOptions
            nas = NastranExportOptions()
            nas.NastranFilename = dir + “/” + “dp” + str(dp) + “_” + solDir + “.txt”