Hi Pilou,

> space between center of bounding box, space between
> bounding box, space offset from a base, ...etc

Yes, so that's part of the problem that there is not just a single definition of spacing.

What kind of spacing were you asking about for your particular request?


> PS Nothing to see with that does exist an automatic Mirror and
> Join when mirror open curve(s) from their extremities?

Not currently, although if you do a mirror once the mirrored copy will get updated by the history mechanism if you edit the original.

In the future I want to add a kind of "symmetry" function that will allow you to draw a closed symmetrical curve directly with the regular draw tools, but until that time you have to do something like apply the mirror command to a half curve.

- Michael