PPT_LOGO_4b
AutoCAD Architecture .NET API ‹#›
Copyright © 2009 Autodesk Inc.
锚(Anchors)
§建立对象之间的关系
§如: 门或窗放置在墙上,墙移动, 门和窗随之移动
§存储在数据库对象
§许多派生类,主要派生关系图如下:
•Anchor
•  AnchorToReference
•    AnchorEntityToCurve
§检查一个对象是否有Anchor
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§2a - Aec Basics.vb > TestAnchor command
Dim geo As Geo = tr.GetObject(geoId, OpenMode.ForRead)
If geo.AnchorId.IsNull Then
  ' Not anchored
Else
  Dim anchor As Anchor = tr.GetObject(geo.AnchorId, OpenMode.ForRead)
  ' Further check anchor type...
End If
演示移动墙,窗户随之移动的过程