VMTK Mapping and Patching Error

Dear all,

I am trying to map the surface of an aortic arch (in a .vtp format, as acquired from a SimVascular Simulation) onto the same parametric space, using VMTK’s Mapping and Patching.

The splitting and grouping seems to be correct. However when i proceed to the Metric mapping, the results differ from the ones shown in the website.

As shown below, at Case 1, the Harmonic Mapping takes place in only one branch/group instead of every single one (Example) and subsequently, the vmtkbranchpatching script leads to an error.

I tried smoothing the surfaces and cap any possible gaps but it didn’t work.

Any ideas and suggestions are welcome. Thank you in advance.

Best,
Michael