Python Result shall wait until results evaluated

SchluppIng · November 26

Hi,

I have a question regarding Python Results in Mechanical. I am automatically generating Python results using a lot of code, structured as follows:

def createPicture(current_path):
import toolbar
toolbar.DoUndeformedWireFrameResultView(ExtAPI)
Graphics.ViewOptions.ResultPreference.ExtraModelDisplay =
MechanicalEnums.Graphics.ExtraModelDisplay.UndeformedWireframe
scfOut = ExtAPI.DataModel.GetObjectsByName('Outside SCF overview')[0]
imgPath = current_path + "\Results\SCFResOut.png"

cam = Graphics.Camera
cam.FocalPoint = Point([0, 7.5, 0], 'm')
cam.ViewVector = Vector3D(1, 0, 0)
cam.UpVector = Vector3D(0, 1, 0)
cam.SceneHeight = Quantity(15, 'm')
cam.SceneWidth = Quantity(botRad, 'm')
img = scfOut.AddImage()
img.SourceType = 1
img.ImagePath = imgPath
ExtAPI.Graphics.ExportScreenToImage(imgPath )

def post_started(sender, analysis): # Do not edit this line
define_dpf_workflow(analysis)
# Here comes my code, which is executed and performs some conversions, etc.

createPicture(path)

Now, the script should wait until the results are loaded and evaluated. Once they are created, the script should take a picture and save it. However, I can't find a function that waits and only creates the images after the evaluation is complete.

The issue is that if I let the script create the images while the evaluation is still in progress, it only produces a picture of the geometry without the results.

Erik Kostson · November 26

Hi

This example creates images when the results are done (after post ):

https://discuss.ansys.com/discussion/4399/how-to-export-images-via-python-code-object-in-batch-run-with-graphics-camera-setfit

All the best

Erik

SchluppIng · December 6

Perhaps I didn't phrase my question entirely correctly, but the issue has been resolved as I found a solution. Nonetheless, thank you for your quick response.

Erik Kostson · December 6

Hi @SchluppIng - can you post your solution here as others might find this useful if they encounter a similar issue.
Erik

SchluppIng · December 6

First of all I created an ACT which calls a function to create an event based python code.
Example func:

def addPythonCodeEvent(analysis, currentPath):
    import os

    #Add some path for self created libs/funcs.
    paths_to_append = [os.path.join(currentPath, folder) for folder in os.listdir(currentPath) if os.path.isdir(os.path.join(currentPath, folder))]
    paths_to_append.append(currentPath)
    for path in paths_to_append:
        if path not in sys.path:
            path = os.path.join(path)
            sys.path.append(path)

    import TextReader
    import re
    sol = analysis.Solution
    pyCodeEvent = sol.AddPythonCodeEventBased()
    pyCodeEvent.TargetCallback = PythonCodeTargetCallback.OnAfterPost

    pictureCreatorFile = currentPath + "\\MechPyRes\\PySCFPictureCreator.py"
    pictureCreatorContent = TextReader.read_text_file(pictureCreatorFile)

    new_path_out = str(currentPath + "\\Results\\SCF_Overview_Outside.png")


    pictureCreatorContent = re.sub(r'fPathOut\s*=\s*".*?"', 'fPathOut = r\'{}\''.format(new_path_out), pictureCreatorContent)

    #Here the py script from below is added the the python event base code
    pyCodeEvent.Text = pictureCreatorContent
    pyCodeEvent.Name = "SCF_Picture_Creator"
    pyCodeEvent.PropertyByName("Suppressed").InternalValue = True

This is the python event based code:

def after_post(this, solution):
    #Do some personal checks for whatever
    if ExtAPI.DataModel.GetObjectsByName('Outside SCF overview'):
        import toolbar
        toolbar.DoUndeformedWireFrameResultView(ExtAPI)

        #Disable ruler for output
        Graphics.ViewOptions.ShowRuler = False

        #Disable mesh etc.
        Graphics.ViewOptions.ResultPreference.ExtraModelDisplay = MechanicalEnums.Graphics.ExtraModelDisplay.UndeformedWireframe

        #Create empty variable for output pathes, will be overwritten
        fPathOut = "C:\\"
        fPathIn = "C:\\"

        #Get results from python code
        scf = ExtAPI.DataModel.GetObjectsByName('PyResults')[0]


        #Set output settings for image
        gset = Ansys.Mechanical.Graphics.GraphicsImageExportSettings()
        gset.CurrentGraphicsDisplay = False
        gset.Width = 750
        gset.Height = 1000
        gset.Background =  GraphicsBackgroundType.White
        gset.Capture = GraphicsCaptureType.ImageAndLegend
        gset.FontMagnification = 0.6

        #Active outside SCF, set camera and export image
        scfOut.Activate()

        #Find max value to display
        maxValOut = 0.0
        for prop in scfOut.Properties:
            if "SCF Bending FreeEdge" in prop.Name:
                scf = scfOut.GetCustomPropertyByPath(prop.Name)
                maxValOut = scf.Value

        #Setup legend
        lsOut = Ansys.Mechanical.Graphics.Tools.CurrentLegendSettings().MakeCopy()
        #ls = Ansys.Mechanical.Graphics.Tools.LegendSettings()
        lsUnitOut = lsOut.Unit
        lsOut.SetMinMax(Quantity(1.0, lsUnitOut), Quantity(maxValOut, lsUnitOut))


        #Set camera orientation
        ExtAPI.Graphics.Camera.SetSpecificViewOrientation(ViewOrientationType.Right)
        ExtAPI.Graphics.Camera.SetFit()

        #Export graphics, import graphics to the results and rename 
        Graphics.ExportImage(fPathOut, GraphicsImageExportFormat.PNG, gset)
        imgOut = scfOut.AddImage(fPathOut)
        imgOut.Name = "SCF Overview Outside"

Probably not the best soultion, but it works

Python Result shall wait until results evaluated

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