How to set plane offset direction in "Curve.Offset" or "PolyCurve.Offset"?

Geometry
1

Hi guys:

In Dynamo, when I want to do “Curve.Offset” or “PolyCurve.Offset” on Plane XY,
occasionally I will get something offset on Plane XZ rather than Plane XY.
Something is offset automatically along Z axis, which I did not specify.
Please see attached image.

How to fix this ?

Thanks!

170407-Q2.jpg957×786 118 KB

2

Might check if polycurve isPlanar first…

3

I also face the same problem！ Do you know the solution now？:cold_sweat:

4

It’s difficult to say without a graph. Can you post a screenshots, with all previews visible?

5

Anyone have a good solution for this yet?