Topic: How to realize 3d Offset?

[gilseorin]

Thanks for the data.
Just 2d offset adding Z value inputed.
Build my code and excute it, then understanded easily.

[gilseorin]

        Dim DrOpt As PromptPointOptions = New PromptPointOptions("" & Microsoft.VisualBasic.Chr(10) & "Specify Offset Direction: ")
        Dim Dres As PromptPointResult = Ed.GetPoint(DrOpt)

Is any method of how the program know where the user picked the point?
Left,right,above or below of the polyline?
If it is closed, in or out?  Thanks.