Question:
How can I enter or read out a response spectrum via the COM interface in DYNAM Pro?
Answer:
The COM interface allows you to read out or create a user-defined response spectrum in RFEM and RSTAB.
For the conversion, the interface to the module (IDynamModule) must first be retrieved via the interface to the RFEM model (IModel). This interface is then used to create the module case (IModuleCase). IModuleCase includes the GetRSParams function, which can be used to read out the parameters for the response spectrum. On the other hand, the SetRSParams function can write new data. The following example code clarifies it:
Dim iApp As RFEM5.Application
Dim iMod As RFEM5.model
Set iApp = GetObject(, "RFEM5.Application")
Dim rs_no As Integer
rs_no = 1
On Error GoTo e
' Checks RS-COM license and locks the application for using by COM.
iApp.LockLicense
Set iMod = iApp.GetActiveModel
' get module interface
Dim iDyn As IDynamModule
Set iDyn = iMod.GetModule("DynamPro")
' get module case interface
Dim iDynCase As IModuleCase
Set iDynCase = iDyn.GetData
' set response spectra parameters
Dim rspara As RSParams
rspara = iDynCase.GetRSParams(rs_no)
Dim rs_spec(0 To 10) As RSTableRow
Dim index As Integer
index = 0
rs_spec(index).s = 0.6
rs_spec(index).T = 0
index = 1
rs_spec(index).s = 1.33
rs_spec(index).T = 0.153
index = 2
rs_spec(index).s = 1.33
rs_spec(index).T = 0.4
index = 3
rs_spec(index).s = 1.204
rs_spec(index).T = 0.443
index = 4
rs_spec(index).s = 1.07
rs_spec(index).T = 0.5
index = 5
rs_spec(index).s = 0.7
rs_spec(index).T = 0.761
index = 6
rs_spec(index).s = 0.508
rs_spec(index).T = 1.051
index = 7
rs_spec(index).s = 0.367
rs_spec(index).T = 1.453
index = 8
rs_spec(index).s = 0.267
rs_spec(index).T = 1.995
index = 9
rs_spec(index).s = 0.16
rs_spec(index).T = 2.584
index = 10
rs_spec(index).s = 0.16
rs_spec(index).T = 5
rspara.UserDefinedTable = rs_spec
rspara.Comment = "test rs"
rspara.DefinitionType = ResponseSpectraType.UserDefinedRS
rspara.description = "test rs via COM"
rspara.Number = rs_no
iDynCase.SetRSParams rs_no, rspara
e: If Err.Number 0 Then MsgBox Err.description, , Err.Source
iMod.GetApplication.UnlockLicense
Set iMod = Nothing
Set iApp = Nothing
The response spectrum was created according to EN 1998‑1:2010 and has 11 points. First, an array of the RSTableRow type with 11 elements was created, filled with data, and then saved under the UserDefinedTable property. The transfer is carried out using the SetRSParams command.
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