Feature Request: New Vector drawing mode "Spiro"

[remi]

We all know, that Xara Xtreme is an easy to learn tool. But some of us are asking for new vector functions. This feature request is about such a new vector function: Simplify the process for drawing beautiful curves.

What means "beautiful" in this case? And how could someone simplify the drawing process of such curves?

The answer comes from the libspiro website:
"Using bézier splines an artist can easily draw curves with the same slope on either side of an on-curve point. Spiros, on the other hand, are based on clothoid splines which make it easy to maintain constant curvature as well as constant slope. Such curves will simply look nicer.

Raph Levien's spiro splines only use on-curve points and so are easier to use and more intuitive to the artist." [1]

This sounds interesting and supports the claim, that Xara Xtreme is one of the fastest and easiest to learn Vector Graphics editor. And it sounds not only interesting, it is also interesting to see how it works and what kind of results are possible:

• Video tutorial: Intro to Spiro
• Example drawings that shows the kind of forms, libspiro creates

Raph Levien, a maintainer of Ghostscript, has created the Library libspiro, which is licensed as GPL.

So, Xara developers, what do you think: Is it worth to implement?

Remi