How to export Time History tabular data of Force Reaction in Mechanical as a csv file?

Rohith Patchigolla

I have several Force reaction objects in Mechanical and I want to export the time history for each Force Reaction object as a separate csv file which should have the columns Time, Fx, Fy and F_Total

Rohith Patchigolla

Please use the below script in Mechanical Scripting console to export the Time history of each force reaction object as a separate csv file in the User Files directory of the Workbench Project.
Please note that this script will work only in GUI mode (i.e. when Mechanical window is open), but will not work as a part of a batch script (when Mechanical is closed).

import os
import wbjn
import re

currAnalysis = DataModel.AnalysisList[0]
UserFilesDir = wbjn.ExecuteCommand(ExtAPI,"returnValue(GetUserFilesDirectory())")

def writeCSV(t1,fileName):
    ExtAPI.Log.WriteMessage('my File name ' + fileName)
    with open(fileName , 'w') as f:
        for line in t1:
            for col in line:
                #For Non-German
                f.write(str(col) + ', ')
                #For German OS 
                #f.write(str(col).replace(".",",") + '; ')
            f.write('\n')

def getTableData(t0,colNum):
    t0.Activate()
    tempTable = []
    paneTabular=ExtAPI.UserInterface.GetPane(MechanicalPanelEnum.TabularData)
    control = paneTabular.ControlUnknown
    for row in range(1,control.RowsCount+1):
        tempRow = []
        for col in range(colNum,colNum+1):
            cellText= control.cell(row ,col ).Text
            tempRow.append(cellText)
        tempTable.append(tempRow)
    return tempTable

ForceReactionCurrAnalysis = [child for child in currAnalysis.Solution.Children if child.DataModelObjectCategory == DataModelObjectCategory.ForceReaction]

for result in ForceReactionCurrAnalysis:
    result.Activate()
    timeCol = [a[0] for a in getTableData(result,2)]
    xReaction =[a[0] for a in getTableData(result,3)]
    yReaction =[a[0] for a in getTableData(result,4)]
    zReaction =[a[0] for a in getTableData(result,5)]
    totalReaction =[a[0] for a in getTableData(result,6)]
    matrix_full = [[timeCol[i], xReaction[i], yReaction[i], zReaction[i], totalReaction[i]] for i in range(len(timeCol))]
    saveName = os.path.join(UserFilesDir, result.Name + '.csv')
    writeCSV(matrix_full,saveName)

M

Note GetPane is not supported and might not work in all cases.

Rohith Patchigolla

Hi @M, yes, GetPane will only work when Mechanical GUI is open. But not when Mechanical GUI is closed (Batch runs, Design Point run etc). I already pointed this in my previous answer.

Vishnu

please refer the below post if you want to get around the batch not working issue. You may have to adapt the code to reaction force

https://discuss.ansys.com/discussion/comment/1989#Comment_1989?utm_source=community-search&utm_medium=organic-search&utm_term=export+csv+dpf

Rohith Patchigolla

modified version of code to also account for scientific numbers in tabular data in Mechanical.
Works only for UI mode, works only for point as a decimal (i.e. typically non german os)

import os
import wbjn
import re

currAnalysis = DataModel.AnalysisList[0]
UserFilesDir = wbjn.ExecuteCommand(ExtAPI,"returnValue(GetUserFilesDirectory())")

import codecs

def writeCSV(t1, fileName):
    ExtAPI.Log.WriteMessage('my File name ' + fileName)

    with codecs.open(fileName, 'w', 'utf-8') as f:
        for line in t1:
            formatted_line = []
            for col in line:
                try:
                    # Convert scientific notation to a readable format
                    if isinstance(col, float):
                        value = "%.10f" % col  # Adjust precision as needed
                    else:
                        value = str(col)

                    formatted_line.append(value)
                except Exception as e:
                    ExtAPI.Log.WriteMessage("Encoding Error: {} - {}".format(col, e))
                    formatted_line.append("ERROR")

            f.write(", ".join(formatted_line) + '\n')


def getTableData(t0,colNum):
    t0.Activate()
    tempTable = []
    paneTabular=ExtAPI.UserInterface.GetPane(MechanicalPanelEnum.TabularData)
    control = paneTabular.ControlUnknown
    for row in range(1,control.RowsCount+1):
        tempRow = []
        for col in range(colNum,colNum+1):
            cellText= control.cell(row ,col ).Text
            tempRow.append(cellText)
        tempTable.append(tempRow)
    return tempTable

ForceReactionCurrAnalysis = [child for child in currAnalysis.Solution.Children if child.DataModelObjectCategory == DataModelObjectCategory.MomentReaction]

for result in ForceReactionCurrAnalysis:
    result.Activate()
    timeCol = [a[0] for a in getTableData(result,2)]
    xReaction =[a[0] for a in getTableData(result,3)]
    yReaction =[a[0] for a in getTableData(result,4)]
    zReaction =[a[0] for a in getTableData(result,5)]
    totalReaction =[a[0] for a in getTableData(result,6)]
    matrix_full = [[timeCol[i], xReaction[i], yReaction[i], zReaction[i], totalReaction[i]] for i in range(len(timeCol))]
    saveName = os.path.join(UserFilesDir, result.Name + '.csv')
    writeCSV(matrix_full,saveName)