困扰3天得问题----为什么面域创建后无法进行布尔运算???求解
Dim region1 As Autodesk.AutoCAD.Interop.Common.AcadRegionDim region2 As Autodesk.AutoCAD.Interop.Common.AcadRegion
region1 = AcadApp.ActiveDocument.ModelSpace.AddRegion(circle)
region2 = AcadApp.ActiveDocument.ModelSpace.AddRegion(ccc)
region1.Boolean(Autodesk.AutoCAD.Interop.Common.AcBooleanType.acSubtraction, region2)
布尔运算不了????????为什么?????
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