How can I create a temperature contour plot from an existing .rth file?

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Marco Wissinger
Marco Wissinger Member Posts: 1

I do have results of a transient thermal analysis performed in Ansys Mechanical. In a next step I would like to use PyDPF to create a contour plot of the temperature of my body and save the contour plot as a picture.

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  • Abel Ramos
    Abel Ramos Member, Employee Posts: 30
    5 Likes First Answer First Comment First Anniversary
    edited April 22
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    Hello, you should be able to use a python result to plot the temperature and export the image with something similar to this example below:

    def post_started(sender, analysis):# Do not edit this line
        define_dpf_workflow(analysis)
    
    # Uncomment this function to enable retrieving results from the table/chart
    # def table_retrieve_result(value):# Do not edit this line
        # import mech_dpf
        # import Ans.DataProcessing as dpf
        # wf = dpf.Workflow(this.WorkflowId)
        # wf.Connect('contour_selector', value)
        # this.Evaluate()
    
    def define_dpf_workflow(analysis):
        import mech_dpf
        import Ans.DataProcessing as dpf
        import os
        mech_dpf.setExtAPI(ExtAPI)
    
        analysis = ExtAPI.DataModel.Project.Model.Analyses[0]
    
        #Results files paths
        resultFile1 = analysis.ResultFileName
    
        #Data Sources
        dataSource1 = dpf.DataSources(resultFile1)
    
        #Time Sets in Results File
        timeScopOp1 = dpf.operators.metadata.time_freq_provider()
        timeScopOp1.inputs.data_sources.Connect(dataSource1)
        timeFreq1 = timeScopOp1.outputs.time_freq_support.GetData()
        timeResultsSets1 = timeFreq1.NumberSets
    
        #Time Scoping
        timeScopingOp1 = dpf.Scoping()
        timeScopingOp1.Ids = [10]
        timeScopingOp1.Location = "Time"
    
        #Temperature Results
        tempOp1 = dpf.operators.result.temperature()
        tempOp1.inputs.data_sources.Connect(dataSource1)
        tempOp1.inputs.time_scoping.Connect(timeScopingOp1)
        temp1 = tempOp1.outputs.fields_container.GetData()
    
        dpf_workflow = dpf.Workflow()
        dpf_workflow.Add(tempOp1)
        dpf_workflow.SetOutputContour(tempOp1)
        dpf_workflow.Record('wf_id', False)
        this.WorkflowId = dpf_workflow.GetRecordedId()
    
        imagePath = analysis.WorkingDir
        imageName = "imag1.png"
        totalDir = os.path.join(imagePath,imageName)
        ExtAPI.Graphics.ExportImage(totalDir)
    

    You should get something like this: