Connection

[durducgeorge]

Hello,

Somebody know if it is possible to create in VBA or C# a connection  with its characteristics?

Thanks

[Stephane.kapetanovic · Accepted solution]

hi @durducgeorge 

you should read this topic 

https://forums.autodesk.com/t5/robot-structural-analysis-forum/api-create-a-frame-knee/m-p/8302913

RobotApplication RobApp = new RobotApplication();
IRJointConnectionServer JointServer = RobApp.Project.Connections;
RJointConnectionInfo JointInfo = JointServer.CreateInfo();
JointInfo.DefType = IRJointConnectionDefType.I_JCDT_STANDALONE;
IRJointConnection Connection = JointServer.Create(IRJointConnectionType.I_JCT_KNEE_WELDED);
IRJointKnee KneeWelded = (IRJointKnee)Connection;
KneeWelded.Beam.Section = "IPE 300";
KneeWelded.Column.Section = "IPE 300";
Connection.SetToRobot(JointInfo);

Best Regards

[durducgeorge]

Snippet

Thanks! it works!

But I want to assign to a node this connection (for example node 5, baars 4
et 2).

I get an error with my code.

Do you know where is the problem?

[image: image.png]

RobotApplication RobApp = new RobotApplication();
IRJointConnectionServer JointServer = RobApp.Project.Connections;
RJointConnectionInfo JointInfo = JointServer.CreateInfo();
JointInfo.DefType = IRJointConnectionDefType.I_JCDT_IN_STRUCTURE;
JointInfo.Type = IRJointConnectionType.I_JCT_BEAM_COLUMN;
RobotSelection robSelbar;
RobotSelection robSelNode;



IRJointConnection Connection =
JointServer.Create(IRJointConnectionType.I_JCT_KNEE_BOLTED);


IRJointKnee KneeBolted = (IRJointKnee)Connection;
KneeBolted.Beam.BarNumber = 2;


KneeBolted.Column.BarNumber = 4;



Connection.SetToRobot(JointInfo);

[Stephane.kapetanovic · Accepted solution]

hi @durducgeorge 

you're wright, it seems that the barNumber parameters for the beam and column have get and set accessors.

Best Regards

updated

RobotApplication RobApp = new RobotApplication();
IRJointConnectionServer JointServer = RobApp.Project.Connections;
IRJointConnection Connection = JointServer.Create(IRJointConnectionType.I_JCT_KNEE_WELDED);
int num = 1;
RJointConnectionInfo Info = JointServer.CreateInfo();
                     Info.DefType = IRJointConnectionDefType.I_JCDT_IN_STRUCTURE;
                     Info.Name = $"Knee Welded {num}";
                     Info.Number = num; Info.Node = 2; Info.Elements.FromText("1 2");
IRJointKnee Knee = (IRJointKnee)Connection;
            Knee.KneeType = IRJointKneeType.I_JKT_BEAM2COLUMN;
            Knee.BracketLow.Exist = 1;
            Knee.BracketLow.Length = 1000;
Connection.SetToRobot(Info);

[durducgeorge · Accepted solution]

Thank you @Stephane.kapetanovic ,

But I've tried many times and I don't understand why I have this error.

Do you have some solutions that I can fix it?

Best regards!

[Stephane.kapetanovic · Accepted solution]

hi @durducgeorge 

The API itself is not the issue; the problem lies in the availability of the connection server. A good practice is to first ensure the structure has been analyzed and to manually create a connection in standalone mode. This will activate the server. You can then run your script to generate the connections, making sure to handle the numbering carefully.

Best Regards

[durducgeorge · Accepted solution]

You are right @Stephane.kapetanovic , it works that way!

Thanks a lot!

Best regards,