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关于分解块引用（VBA/ActiveX）

2024-5-18 19:06| 发布者: admin| 查看: 120| 评论: 0|原作者: admin|来自: AutoCAD

使用该方法中断块引用。Explode

通过分解块参照，可以修改块，或者添加或删除定义块的对象。

显示分解块参照的结果

此示例创建一个块，并在该块的定义中添加一个圆圈。然后，将块作为块参照插入到图形中。然后分解块参照，并显示分解过程生成的对象及其对象类型。

Sub Ch10_ExplodingABlock()
 ' Define the block
 Dim blockObj As AcadBlock
 Dim insertionPnt(0 To 2) As Double
 insertionPnt(0) = 0
 insertionPnt(1) = 0
 insertionPnt(2) = 0
 Set blockObj = ThisDrawing.Blocks.Add _
 (insertionPnt, "CircleBlock")
 
 ' Add a circle to the block
 Dim circleObj As AcadCircle
 Dim center(0 To 2) As Double
 Dim radius As Double
 center(0) = 0
 center(1) = 0
 center(2) = 0
 radius = 1
 Set circleObj = blockObj.AddCircle(center, radius)
 
 ' Insert the block
 Dim blockRefObj As AcadBlockReference
 insertionPnt(0) = 2
 insertionPnt(1) = 2
 insertionPnt(2) = 0
 Set blockRefObj = ThisDrawing.ModelSpace.InsertBlock _
 (insertionPnt, "CircleBlock", 1#, 1#, 1#, 0)
 ZoomAll
 MsgBox "The circle belongs to " & blockRefObj.ObjectName
 
 ' Explode the block reference
 Dim explodedObjects As Variant
 explodedObjects = blockRefObj.Explode
 
 ' Loop through the exploded objects
 Dim I As Integer
 For I = 0 To UBound(explodedObjects)
 explodedObjects(I).Color = acRed
 explodedObjects(I).Update
 MsgBox "Exploded Object " & I & ": " _
 & explodedObjects(I).ObjectName
 explodedObjects(I).Color = acByLayer
 explodedObjects(I).Update
 Next
End Sub