GetConstraint

Syntax

SapObject.SapModel.PointElm.GetConstraint

VB6 Procedure

Function GetConstraint(ByVal Name As String, ByRef NumberItems As Long, ByRef PointName() As String, ByRef ConstraintName() As String, Optional ByVal ItemTypeElm As eItemTypeElm = Element) As Long

Parameters

Name

The name of an existing point object, point element, or group of objects, depending on the value of the ItemTypeElm item.

NumberItems

This is the total number of constraint assignments returned.

PointName

This is an array that includes the name of the point element to which the specified constraint assignment applies.

ConstraintName

This is an array that includes the name of the constraint that is assigned to the point element specified by the PointName item.

ItemTypeElm

This is one of the following items in the eItemTypeElm enumeration:

ObjectElm = 0

Element = 1

GroupElm = 2

SelectionElm = 3

If this item is ObjectElm, the constraint assignments are retrieved for the point element corresponding to the point object specified by the Name item.

If this item is Element, the constraint assignments are retrieved for the point element specified by the Name item.

If this item is GroupElm, the constraint assignments are retrieved for all point elements directly or indirectly specified in the group specified by the Name item.

If this item is SelectionElm, the constraint assignments are retrieved for all point elements directly or indirectly selected, and the Name item is ignored.

See Item Type for Elements for more information.

Remarks

This function returns a list of constraint assignments made to one or more specified point elements.

The function returns zero if the constraint name list is successfully filled, otherwise it returns nonzero.

The PointName and ConstraintName items are returned in one-dimensional arrays. Each array is created as a dynamic array by the API user. In VBA a dynamic string array is defined by:

Dim PointName() as String

The arrays are dimensioned to (NumberItems – 1) inside the Sap2000 program, filled with values, and returned to the API user.

The arrays are zero-based. Thus the first item is at array index 0, and the last item is at array index (NumberItems - 1).

VBA Example

Sub GetConstraintElmAssignments()
   'dimension variables
      Dim SapObject As Sap2000.SapObject
      Dim SapModel As cSapModel
      Dim ret As Long
      Dim NumberItems as Long
      Dim PointName() As String
      Dim ConstraintName() As String
      Dim i As Long

   'create Sap2000 object
      Set SapObject = New SAP2000.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, 3, 124, 3, 200)

   'define a new constraint
      ret = SapModel.ConstraintDef.SetDiaphragm("Diaph1")

   'define new constraint assignments
      For i = 4 To 16 Step 4
         ret = SapModel.PointObj.SetConstraint(Format(i), "Diaph1")
      Next i

   'create analysis model
      ret = SapModel.Analyze.CreateAnalysisModel

   'get constraint assignments to point elements
      ret = SapModel.PointElm.GetConstraint("ALL", NumberItems, PointName, ConstraintName, GroupElm)

   'close Sap2000
      SapObject.ApplicationExit False
      Set SapModel = Nothing
      Set SapObject = Nothing
End Sub

Release Notes

Initial release in version 11.00.