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发表于 2011-1-20 20:15:28
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Sub Example_GetBulge()
' This example creates a lightweight polyline in model space.
' It then finds and changes the bulge for a given segment.
Dim plineObj As AcadLWPolyline
Dim points(0 To 11) As Double
' Define the 2D polyline points
points(0) = 1: points(1) = 1
points(2) = 1: points(3) = 2
points(4) = 2: points(5) = 2
points(6) = 3: points(7) = 2
points(8) = 4: points(9) = 4
points(10) = 4: points(11) = 1
' Create a lightweight Polyline object in model space
Set plineObj = ThisDrawing.ModelSpace.AddLightWeightPolyline(points)
ZoomAll
' Find the bulge of the third segment
Dim currentBulge As Double
currentBulge = plineObj.GetBulge(3)
MsgBox "The bulge for the third segment is " & plineObj.GetBulge(3), , "GetBulge Example"
' Change the bulge of the third segment
plineObj.SetBulge 3, -0.5
plineObj.Update
MsgBox "The bulge for the third segment is now " & plineObj.GetBulge(3), , "GetBulge Example"
End Sub
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