GET ENVELOPE FORCES BAR VIA API (C#)

[eng_leandromartins]

Hello everyone,

How do I get the envelope of all combinations from the beginning and end of each bar?

I wrote the code below but it goes through all combinations and all bars. It takes too long.

I saw several examples on the forum, but I didn't quite understand the logic applied.

 public List<InternalForces> GetInternalForces()
 {
     
     List<double> FX = new List<double>();
     RobotCaseCollection caseCollection = new RobotCaseCollection();
     rSelection = RobotApp.Project.Structure.Selections.Create(IRobotObjectType.I_OT_CASE);
     ForceServer = RobotApp.Project.Structure.Results.Bars.Forces;
     rSelection.AddText("todos");
     caseCollection = RobotApp.Project.Structure.Cases.GetMany(rSelection);

     if (RobotApp.Project.Structure.Results.Available == -1 )
     {

         for (int i = 0; i < OrdenadesProfiles.Count; i++)
         {


             for (int j = 1; j < caseCollection.Count; j++)
             {

                 if (CaseType == IRobotCaseAnalizeType.I_CAT_COMB || CaseType == IRobotCaseAnalizeType.I_CAT_COMB_CODE || CaseType == IRobotCaseAnalizeType.I_CAT_COMB_NONLINEAR)
                 {

                     robotCase = caseCollection.Get(j);
                     int casNumber = robotCase.Number;
                     DataForce = ForceServer.Value(OrdenadesProfiles[i].Number, casNumber, 0.0);
                     FX.Add(DataForce.FX);
                     DataForce = ForceServer.Value(OrdenadesProfiles[i].Number, casNumber, 1.0);
                     FX.Add(DataForce.FX);

                 }
             }

         BarNumber = OrdenadesProfiles[i].Number;
             FXMax = FX.Max();
             FXMin = FX.Min();
         }

         internalForces.Add(new InternalForces(BarNumber,FXMax, FXMin));

     }
     else
     {
         MessageBox.Show("Modelo sem Resultados!","AVISO",MessageBoxButtons.OK);

     }
     return internalForces;
 }

Thanks in advance

[Stephane.kapetanovic · Accepted solution]

HI @eng_leandromartins 

you should read this topic (msg 15): (API) Macro for dumping all opened tables in Robot (with all tabs) to Excel 

note that you can change IRobotTableDataType.I_TDT_DEFAULT to I_TDT_ENVELOPE in Sub GetBarForcesByTable 

static void GetBarForceEnvelopeByTable(string bText, string cText, int n) {
    var tb = new RobotApplication().Project.ViewMngr.CreateTable(I_TT_FORCES, I_TDT_ENVELOPE);
    tb.Select(I_ST_BAR, bText); tb.Select(I_ST_CASE, cText); tb.Configuration.SetValue(I_TCV_NUMBER_OF_DIVISION_POINTS, n);
    string fullPath = Path.Combine(Path.GetTempPath(), "forces.txt");
    if (tb.Printable.SaveToFile(fullPath, I_OFF_TEXT))
        File.ReadAllLines(fullPath).Skip(1).Select(line => string.Concat(line.Split(';').Select(s => $"{s,-15}"))).ToList().ForEach(WriteLine);
    tb.Window.SendMessage(0x10, 0, 0); WriteLine("Press any key to continue..."); ReadKey();
}

Best regards

[eng_leandromartins]

Thanks for the answer Stephane,

One question, how do I create a List through this?

I don't want to save this information in any file. I want to create a List and get this information in another method.

[Stephane.kapetanovic]

Hi @eng_leandromartins 

Have you tried the code?
The code does the following:
- creates a table of envelope forces in robot
- exports the table in csv format and closes it
- opens the file and reads it in its entirety
- it displays all the values by column in console mode
With this you have everything you need to create lists, sort and classify your data.
It's not just a file output. this is a normal process.

Why create a list? Which one? What's it for? I can't guess what you want to do.

Best Regards

[eng_leandromartins]

Hello,
I tested it, and I realized that the best way to do what I need is to use this file that this method generates and create a list through it.
Sorry for not making it clear what I want to do @Stephane.kapetanovic 
I created an app that uses Robot information to create a model within Tekla Structures, and I want to put this force information inside the parts that are created within Tekla, as user information! And the best way to do this is through a list of parts. So I thought about creating a List directly with the Robot information. But as you showed me, the best way is through this file.
Thanks again!!!

[Stephane.kapetanovic]

hi @eng_leandromartins 

In this case you should add the object IDs of your two models to this list so that you can update your data.

note that you can obtain a list of forces in csv format without using the API.

Best Regards

[eng_leandromartins]

Thanks for the tip about the IDs @Stephane.kapetanovic!
Do you have a tutorial on how to create or get these IDs in Robot?

[Stephane.kapetanovic · Accepted solution]

     RobotApplication RobApp = new RobotApplication();
    RobotStructure Structure = RobApp.Project.Structure;
       RobotNodeServer Nodes = Structure.Nodes;
         RobotBarServer Bars = Structure.Bars;
RobotObjObjectServer Objects = Structure.Objects;

     RobotNode n = (RobotNode)Nodes.Get(1);        int Nod_ID = n.UniqueId;
      RobotBar b = (RobotBar)Bars.Get(1);          int Bar_ID = b.UniqueId;
RobotObjObject o = (RobotObjObject)Objects.Get(1); int Obj_ID = o.UniqueId;

int Nod_Number = Nodes.GetUniqueId(Nod_ID);        RobotNode n1 = (RobotNode)Nodes.Get(Nod_Number);
int Bar_Number = Bars.GetUniqueId(Bar_ID);          RobotBar b1 = (RobotBar)Bars.Get(Bar_Number);
int Obj_Number = Objects.GetUniqueId(Obj_ID); RobotObjObject o1 = (RobotObjObject)Objects.Get(Obj_Number); 

[eng_leandromartins]

Thank's so much!