Hi Pilou,

> Yes but it's a line and not a curve? no problem for a close up but in theory?

It's only a problem in theory if you want some other shape than a straight extension there...

You would need to know what the intent is of the extended shape - should it extend in a straight way from the current one? If so then a line would be the correct shape for that because a line is straight.

Just because it is a line does not mean that it is automatically bad for all cases.

It would probably not be quite as good if it was a polished mirror or something reflective like that but that does not look to be this particular case. In reflective objects things like lines tend to be more visible to the eye.


> Function Extend make the same ? add a tangent line to a curve
> from last 2 points of the a curve?

Yeah, same as what extend will currently do.

For just placing a line I usually just draw a line and use Straight snap to lock on to the tangent line.

- Michael