Rotate Assembly Component on Axis Using IDragOperator::DragAsUI Example (VBA)

This example shows how to rotate an assembly component about an assembly axis using IDragOperator::DragAsUI.

 

'------------------------------------------------------------------

'

' Preconditions:

'       (1) Assembly document is open.

'       (2) Component in the assembly document is selected.

'

' Postconditions: Transform matrix is set.

'

'------------------------------------------------------------------

Option Explicit

Const PI                As Double = 3.14159

Const RadPerDeg         As Double = PI / 180#

'   DragOperator::TransformType

'       Translation     0

'       Transform is translation-only.

'

'       Axial rotation  1

'       Transform is rotation-only.

'

'       General         2

'       Transform can be translation, rotation, or both.

'   DragOperator::DragMode

'       Minimum Move    0

'       Move smallest number of geometries.

'

'       Maximum Move    1

'       Move geometries rigidly if possible.

'

'       Relaxation      2

'       Solve geometries using relaxation.

Sub main()

    Dim swApp                   As SldWorks.SldWorks

    Dim swModel                 As SldWorks.ModelDoc2

    Dim swAssy                  As SldWorks.AssemblyDoc

    Dim swDragOp                As SldWorks.DragOperator

    Dim swSelMgr                As SldWorks.SelectionMgr

    Dim swComp(1)               As SldWorks.Component2

    Dim vComp                   As Variant

    Dim swXform                 As SldWorks.MathTransform

    Dim swMathUtil              As SldWorks.MathUtility

    Dim swOriginPt              As SldWorks.MathPoint

    Dim swX_Axis                As SldWorks.MathVector

    Dim nPts(2)                 As Double

    Dim vData                   As Variant

    Dim nNow                    As Single

    Dim i                       As Long

    Dim bRet                    As Boolean

    Set swApp = CreateObject("SldWorks.Application")

    Set swModel = swApp.ActiveDoc

    Set swAssy = swModel

    Set swDragOp = swAssy.GetDragOperator

    Set swSelMgr = swModel.SelectionManager

    Set swComp(0) = swSelMgr.GetSelectedObjectsComponent(1)

    Set swComp(1) = swSelMgr.GetSelectedObjectsComponent(2)

    Set swMathUtil = swApp.GetMathUtility

    vComp = swComp

    nPts(0) = 0#

    nPts(1) = 0#

    nPts(2) = 0#

    vData = nPts

    Set swOriginPt = swMathUtil.CreatePoint(vData)

    nPts(0) = 1#

    nPts(1) = 0#

    nPts(2) = 0#

    vData = nPts

    Set swX_Axis = swMathUtil.CreateVector(vData)

    ' This is an incremental rotation,

    ' so angle is always the same.

    Set swXform = swMathUtil.CreateTransformRotateAxis( _

                        swOriginPt, swX_Axis, 1# * RadPerDeg)

    bRet = swDragOp.AddComponent(swComp(0), False)

    Debug.Assert bRet

    swDragOp.DynamicClearanceEnabled = False

    ' Axial rotation

    swDragOp.TransformType = 1

    ' Solve by relaxation

    swDragOp.DragMode = 2

    bRet = swDragOp.BeginDrag

    Debug.Assert bRet

    For i = 0 To 500

        bRet = swDragOp.dragAsUI(swXform)

    Next i

    bRet = swDragOp.EndDrag

    Debug.Assert bRet

End Sub