ExtLine2StartPoint Property (ActiveX)

Specifies the start point of the second extension line.

Supported platforms: Windows only

Signature

VBA:

object.ExtLine2StartPoint

object

Type: DimAngular

The object this property applies to.

Property Value

Read-only: No

Type: Variant (three-element array of doubles)

A 3D coordinate representing the start point of the second extension line.

Remarks

The ExtLine1StartPoint and ExtLine2StartPoint properties are equal to the FirstEndPoint and SecondEndPoint parameters from the AddDimAngular method. The extension lines are originally drawn from the FirstEndPoint and SecondEndPoint locations to the intersection of the dimension line. AutoCAD draws the dimension line as an arc between the extension lines.

Examples

VBA:

Sub Example_ExtLine2StartPoint()
    ' This example creates an angular dimension. It then changes
    ' the location of the ExtLine2StartPoint.
    
    Dim dimObj As AcadDimAngular
    Dim angVert(0 To 2) As Double
    Dim FirstPoint(0 To 2) As Double
    Dim SecondPoint(0 To 2) As Double
    Dim TextPoint(0 To 2) As Double
    
    ' Define the dimension
    angVert(0) = 0#: angVert(1) = 5#: angVert(2) = 0#
    FirstPoint(0) = 1#: FirstPoint(1) = 7#: FirstPoint(2) = 0#
    SecondPoint(0) = 1#: SecondPoint(1) = 3#: SecondPoint(2) = 0#
    TextPoint(0) = 3#: TextPoint(1) = 5#: TextPoint(2) = 0#
    
    ' Create the angular dimension in model space
    Set dimObj = ThisDrawing.ModelSpace.AddDimAngular(angVert, FirstPoint, SecondPoint, TextPoint)
    ZoomAll
    MsgBox "The current value of ExtLine2StartPoint is " & dimObj.ExtLine2StartPoint(0) & ", " & dimObj.ExtLine2StartPoint(1) & ", " & dimObj.ExtLine2StartPoint(2), vbInformation, "ExtLine2StartPoint Example"
    
    ' Change the start point of the second extension line
    FirstPoint(0) = 1: FirstPoint(1) = 4: FirstPoint(2) = 0
    dimObj.ExtLine2StartPoint = FirstPoint
    dimObj.Update
    
    ' Return the start point of the second extension line
    ' Note that the return value is a Variant
    Dim retPnt As Variant
    retPnt = dimObj.ExtLine2StartPoint
    MsgBox "The new value of ExtLine2StartPoint is " & dimObj.ExtLine2StartPoint(0) & ", " & dimObj.ExtLine2StartPoint(1) & ", " & dimObj.ExtLine2StartPoint(2), vbInformation, "ExtLine2StartPoint Example"
End Sub

Visual LISP:

(vl-load-com)
(defun c:Example_ExtLine2StartPoint()
    ;; This example creates an angular dimension. It then changes
    ;; the location of the ExtLine2StartPoint.
    (setq acadObj (vlax-get-acad-object))
    (setq doc (vla-get-ActiveDocument acadObj))
    
    ;; Define the dimension
    (setq AngleVertex (vlax-3d-point 0 5 0)
          FirstPoint (vlax-3d-point 1 7 0)
          SecondPoint (vlax-3d-point 1 3 0)
          TextPoint (vlax-3d-point 3 5 0))
    
    ;; Create the angular dimension in model space
    (setq modelSpace (vla-get-ModelSpace doc))  
    (setq dimObj (vla-AddDimAngular modelSpace AngleVertex FirstPoint SecondPoint TextPoint))
    (vla-ZoomAll acadObj)
  
    (setq extLineStartPoint (vlax-safearray->list (vlax-variant-value (vla-get-ExtLine2StartPoint dimObj))))
    (alert (strcat "The current value of ExtLine2StartPoint is " (rtos (nth 0 extLineStartPoint) 2) ", "
		                                                 (rtos (nth 1 extLineStartPoint) 2) ", "
		                                                 (rtos (nth 2 extLineStartPoint) 2)))
    
    ;; Change the start point of the second extension line
    (setq FirstPoint (vlax-3d-point 1 4 0))
    (vla-put-ExtLine2StartPoint dimObj FirstPoint)
    (vla-Update dimObj)
    
    ;; Return the start point of the second extension line
    ;; Note that the return value is a Variant
    (setq retPnt (vlax-safearray->list (vlax-variant-value (vla-get-ExtLine2StartPoint dimObj))))
    (alert (strcat "The new value of ExtLine2StartPoint is " (rtos (nth 0 retPnt) 2) ", "
		                                             (rtos (nth 1 retPnt) 2) ", "
		                                             (rtos (nth 2 retPnt) 2)))
)