Investigate new B-splines features

[bgrimstad]

Investigate if the following should be implemented:

• Integration of B-splines
• Tension B-splines: http://www.cas.mcmaster.ca/~modersit/Pubs/2009-SPIE-BFM.pdf

[giorgiomarcias]

Can this numerical integration library help for integration?

[bgrimstad]

At first glance it looks promising, but I need to take a closer look later. Is integration a feature you need, Georgio? We should prioritize features according to user demand.

[giorgiomarcias]

Well, I need to compute the integral of a spline. I can use that lib on top of yours, so it is not a priority. But since you're interested in integration too, I wanted to share :-)

[bgrimstad]

I understand. Thank you for sharing. Let me know if you have success using it. If so, we should consider including it.