CenterType Property (ActiveX)

Specifies the type of center mark for radial and diameter dimensions.

Supported platforms: Windows only

Signature

VBA: 

object.CenterType
object

Type: DimDiametric, DimRadial, DimRadialLarge

The objects this property applies to.

Property Value

Read-only: No

Type: acDimCenterType enum

Remarks

The center mark is visible only if you place the dimension line outside the circle or arc.

Note: This property overrides the value of the DIMCEN system variable for the given dimension.

Examples

VBA: 

Sub Example_CenterType()
    ' This example creates a diametric dimension in model space.
    ' It then changes the type of center for the dimension.
    
    Dim dimObj As AcadDimDiametric
    Dim chordPoint(0 To 2) As Double
    Dim farChordPoint(0 To 2) As Double
    Dim leaderLength As Double
    
    ' Define the dimension
    chordPoint(0) = 5#: chordPoint(1) = 3#: chordPoint(2) = 0#
    farChordPoint(0) = 5#: farChordPoint(1) = 5#: farChordPoint(2) = 0#
    leaderLength = 1#
    
    ' Create the diametric dimension in model space
    Set dimObj = ThisDrawing.ModelSpace.AddDimDiametric(chordPoint, farChordPoint, leaderLength)
    ZoomAll
    
    ' Set the center to be none
    dimObj.CenterType = acCenterNone
    dimObj.Update
    MsgBox "The dimension center type is set to none."
    
    ' Change the center type to center mark
    dimObj.CenterType = acCenterMark
    dimObj.Update
    MsgBox "The dimension center type is set to center mark."
    
    ' Change the center type to center line
    dimObj.CenterType = acCenterLine
    dimObj.Update
    MsgBox "The dimension center type is set to center line."
End Sub

Visual LISP: 

(vl-load-com)
(defun c:Example_CenterType()
    ;; This example creates a diametric dimension in model space.
    ;; It then changes the type of center for the dimension.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))

    ;; Define the dimension
    (setq chordPoint (vlax-3d-point 5 3 0)
          farChordPoint (vlax-3d-point 5 5 0)
          leaderLength 1)
    
    ;; Create the diametric dimension in model space
    (setq modelSpace (vla-get-ModelSpace doc))
    (setq dimObj (vla-AddDimDiametric modelSpace chordPoint farChordPoint leaderLength))
    (vla-ZoomAll acadObj)
    
    ;; Set the center to be none
    (vla-put-CenterType dimObj acCenterNone)
    (vla-Update dimObj)
    (alert "The dimension center type is set to none.")
    
    ;; Change the center type to center mark
    (vla-put-CenterType dimObj acCenterMark)
    (vla-Update dimObj)
    (alert "The dimension center type is set to center mark.")
    
    ;; Change the center type to center line
    (vla-put-CenterType dimObj acCenterLine)
    (vla-Update dimObj)
    (alert "The dimension center type is set to center line.")
)