GetParameters {Modal Eigen}

GetParameters

Syntax

SapObject.SapModel.LoadCases.ModalEigen.GetParameters

VB6 Procedure

Function GetParameters(ByVal Name As String, ByRef EigenShiftFreq As Double, ByRef EigenCutOff As Double, ByRef EigenTol As Double, ByRef AllowAutoFreqShift As Long) As Long

Parameters

Name

The name of an existing modal eigen load case.

EigenShiftFreq

The eigenvalue shift frequency. [cyc/s]

EigenCutOff

The eigencutoff frequency radius. [cyc/s]

EigenTol

The relative convergence tolerance for eigenvalues.

AllowAutoFreqShift

This is either 0 or 1, indicating if automatic frequency shifting is allowed.

0 = Automatic frequency shifting is NOT allowed

1 = Automatic frequency shifting is allowed

Remarks

This function retrieves various parameters for the specified load case.

The function returns zero if the parameters are successfully retrieved; otherwise it returns a nonzero value.

VBA Example

Sub GetCaseModalEigenParameters()

'dimension variables

Dim SapObject as cOAPI

Dim SapModel As cSapModel

Dim ret As Long

Dim EigenShiftFreq As Double

Dim EigenCutOff As Double

Dim EigenTol As Double

Dim AllowAutoFreqShift As Long

'create Sap2000 object

Set SapObject = CreateObject("CSI.SAP2000.API.SapObject")

'start Sap2000 application

SapObject.ApplicationStart

'create SapModel object

Set SapModel = SapObject.SapModel

'initialize model

ret = SapModel.InitializeNewModel

'create model from template

ret = SapModel.File.New2DFrame(PortalFrame, 2, 144, 2, 288)

'add modal eigen load case

ret = SapModel.LoadCases.ModalEigen.SetCase("LCASE1")

'get parameters

ret = SapModel.LoadCases.ModalEigen.GetParameters("LCASE1", EigenShiftFreq, EigenCutOff, EigenTol, AllowAutoFreqShift)

'close Sap2000

SapObject.ApplicationExit False

Set SapModel = Nothing

Set SapObject = Nothing

End Sub

Release Notes

Initial release in version 11.02.

Changed nomenclature from Load Cases, Analysis Cases and Response Combinations to Load Patterns, Load Cases and Load Combinations, respectively, in version 12.00.

See Also

SetParameters