Specifies the block to use as the custom arrowhead for the first end of the dimension line.
Supported platforms: Windows only
VBA:
object.Arrowhead1Block
Type: Dim3PointAngular, DimAligned, DimAngular, DimArcLength, DimDiametric, DimRotated
The objects this property applies to.
Read-only: No
Type: String
The name of the block to use as the arrowhead for the first end of the dimension line.
VBA:
Sub Example_ArrowHead1Block() ' This example creates an aligned dimension object in model space ' and then alters the visible appearance (shape) of the arrowhead ' using the ArrowHeadBlock property. ' Use the ArrowHeadBlock property to set the arrowhead to an existing ' block object containing a custom Circle object Dim DimPointAngularObj As AcadDim3PointAngular Dim AngleVertex(0 To 2) As Double Dim FirstPoint(0 To 2) As Double, SecondPoint(0 To 2) As Double Dim TextPoint(0 To 2) As Double Dim BlockName As String ' Define the new Dim3PointAngular object AngleVertex(0) = 0: AngleVertex(1) = 0: AngleVertex(2) = 0 FirstPoint(0) = 2: FirstPoint(1) = 2: FirstPoint(2) = 0 SecondPoint(0) = 1: SecondPoint(1) = 4: SecondPoint(2) = 0 TextPoint(0) = 6: TextPoint(1) = 6: TextPoint(2) = 0 ' Create the new Dim3PointAngular object in model space Set DimPointAngularObj = ThisDrawing.ModelSpace.AddDim3PointAngular(AngleVertex, FirstPoint, SecondPoint, TextPoint) ZoomAll ' Set arrowhead type to user-defined to allow ' the use of a block as the new arrowhead 'dimObj.ArrowheadType = acArrowUserDefined DimPointAngularObj.Arrowhead1Block = "CBlock" DimPointAngularObj.Arrowhead2Block = "CBlock" ZoomAll ' Read and display current arrowhead block name BlockName = DimPointAngularObj.Arrowhead1Block MsgBox "The arrowhead block name for this object is: " & BlockName End Sub
Visual LISP:
(vl-load-com) (defun c:Example_ArrowHead1Block() ;; This example creates an aligned dimension object in model space ;; and then alters the visible appearance (shape) of the arrowhead ;; using the ArrowHeadBlock property. ;; Use the ArrowHeadBlock property to set the arrowhead to an existing ;; block object containing a custom Circle object (setq acadObj (vlax-get-acad-object)) (setq doc (vla-get-ActiveDocument acadObj)) ;; Define the new Dim3PointAngular object (setq AngleVertex (vlax-3d-point 0 0 0) FirstPoint (vlax-3d-point 2 2 0) SecondPoint (vlax-3d-point 1 4 0) TextPoint (vlax-3d-point 6 6 0)) ;; Create the new Dim3PointAngular object in model space (setq modelSpace (vla-get-ModelSpace doc)) (setq DimPointAngularObj (vla-AddDim3PointAngular modelSpace AngleVertex FirstPoint SecondPoint TextPoint)) (vla-ZoomAll acadObj) ;; Use the custom block as the new arrowhead, the block must exist in the drawing (vla-put-Arrowhead1Block DimPointAngularObj "CBlock") (vla-put-Arrowhead2Block DimPointAngularObj "CBlock") (vla-ZoomAll acadObj) ;; Read and display current arrowhead block name (setq BlockName (vla-get-Arrowhead1Block DimPointAngularObj)) (alert (strcat "The arrowhead block name for this object is: " BlockName)) )