How to plot directional deformation with vectors?

Javier Vique
Javier Vique Member, Employee Posts: 84
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in Structures

In Mechanical, we can plot the total deformation as vector. However, there is no way to plot a directional deformation. This is reasonable, since a directional deformation is just a scalar value. However, an user might be interested to have a plot of that directional deformation with vectors which are proportionals to their values. How to do it?

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  • Javier Vique
    Javier Vique Member, Employee Posts: 84
    Second Anniversary 5 Answers 25 Likes 10 Comments
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    This can be easily done using Python Result object. The directional deformation is read using dpf and then a custom field is created, applying zero value to the deformation on the other two directions. Please see below script done for deformation on z direction.
    If the deformation must be plot on a specific CS, please see this post.

    def define_dpf_workflow(analysis):
    import mech_dpf
    import Ans.DataProcessing as dpf
    mech_dpf.setExtAPI(ExtAPI)
    dataSource = dpf.DataSources(analysis.ResultFileName)

    scoping_refs = this.GetCustomPropertyByPath("Surface UZ/Scoping Property/Geometry Selection").Value
    nodes_loc = mech_dpf.GetNodeScopingByRefId(scoping_refs)

    uz = dpf.operators.result.displacement_Z()
    uz.inputs.data_sources.Connect(dataSource)
    uz.inputs.mesh_scoping.Connect(nodes_loc)

    num_nodes = nodes_loc.Count

    disp_vector = dpf.FieldsFactory.Create3DVectorField(numEntities = num_nodes)
    k = 0 
    for i in uz.outputs.fields_container.GetData()[0].ScopingIds:
        datak = uz.outputs.fields_container.GetData()[0].Data[k]
        k = k + 1
        disp_vector.Add(id=i,data=[0.0,0.0,datak])

    output = dpf.operators.utility.forward()
    output.inputs.any.Connect(disp_vector)

    dpf_workflow = dpf.Workflow()
    dpf_workflow.Add(output)
    dpf_workflow.SetOutputContour(output)
    dpf_workflow.Record('wf_id', False)
    this.WorkflowId = dpf_workflow.GetRecordedId()

    The result would be like this:

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