Hi David, Thank you for replying so quickly and concisely. I see now that I was working with the incorrect assumption that the SV models were in a NURBS format, and I needed to find a way to extract this data, as a result, I did not want to 'refit' NURBS from VTK data, 'losing' information. Thank yo...

I am a student attempting to extract the NURBS surface data from SimVascular models, in order to conduct Isogeometric Analysis on bloodflow, eventually looking to model arterial stents. Having found https://www.vascularmodel.com/ and the models contained within this repository, I have found them ide...