How to offset a curve in VBA

[kato01]

Hello,

I need a curve offset VBA routine.
Say I have a curve C1 defined by a series of [x,y] points. I need to generate another series of point that describe the offset curve C1 by a quantity "d". Something similar to what is shown in the picture attached
Any ideas?

Thank you
https://www.excelforum.com/attachments/excel-programming-vba-macros/667338d1584196912-need-a-curve-offset-routine-offset_curve.png

[Paul_Hossler]

1. No picture

2. A workbook with representative [x,y] points would be better

3. Why not just add "d" to each of the x's and y's?