I’m trying to extend curves for a positive distance value, but I got an error says that the value should be minus. For some curves positive value works, but not for all of them. What is the logic behind the “Curve.Extend” node with the “pickSide” attribute?

# Curve.Extend

Try playing with this simple file. Might help understand. (But there is also some unexpected behavior)

**Sam_Z**#3

Thanks for the sample Vikram. The interesting point about the Curve.extend node is that it can’t extend a curve resulted by Surface.GetIsoLine node for a positive value. I’m not sure why. It might be a bug.