How to plot elemental custom results coming from a txt file in Mechanical?

Javier Vique

I am an standard user of Mechanical, with no DPF background. I have got an in-house tool which makes a evaluation of my structure giving elemental custom results which can be written into a txt/csv file. I want to plot these elemental custom results in Mechanical.

Javier Vique

Python Result object allows users to plot elemental custom results in a very easily and intuitive way. The script given below just need a txt file called my_result.txt in the users_file folder of WB project.

def define_dpf_workflow(analysis):
    import mech_dpf
    import Ans.DataProcessing as dpf
    import os

    analysis = ExtAPI.DataModel.Project.Model.Analyses[0]
    user_files_dir = os.path.join(analysis.WorkingDir,'../../../user_files')
    ResultFile = os.path.join(user_files_dir, 'my_result.txt')
    
    elements = []
    result = []
    
    f = open(ResultFile, "r")
    Lines = f.readlines()
    for Line in Lines:
        Line = Line.split('\t')
        elements.append(float(Line[0]))
        result.append(float(Line[1].strip()))
    
    my_field = dpf.FieldsFactory.CreateScalarField(len(elements),'Elemental')
    [my_field.Add(id = elements[i], data = [result[i]]) for i in range(len(elements))]
    
    op = dpf.operators.utility.forward_fields_container()
    op.inputs.fields.Connect(my_field)

    dpf_workflow = dpf.Workflow()
    dpf_workflow.Add(op)
    # dpf_workflow.SetInputName(u, 0, 'time')
    # dpf_workflow.Connect('time', timeScop)
    dpf_workflow.SetOutputContour(op)
    dpf_workflow.Record('wf_id', False)
    this.WorkflowId = dpf_workflow.GetRecordedId()

amusthaf

Hello,

I used the same script to plot the results from a .txt file in Mechanical.

But how do I include the units in the same display?

@Pernelle Marone-Hitz @Ayush Kumar @Mike.Thompson @Javier Vique any ideas?

Javier Vique

Hi @amusthaf !
Any field has some units associated. You can check them using my_field.Unit.
So if you want your custom field to have mm as unit, it is as simple as including an additional line with:

my_field.Unit = 'mm'

Regards,
Javier.

amusthaf

Hi @Javier Vique !!! Thank you for your reply!

I tried the same and it is working fine! But, when I try like:

my_field.Unit = '%'

It is not working. Any ideas here? Any documentations to refer?

Javier Vique

Hi @amusthaf,
% is not an unit, so you cannot expect that working.
What you can do is to keep your field unitless and rename your Python Code with "MyResult in %", replacing MyResult to whatever you want.
Regards, Javier.