simtk.org

I plan to use the SimVascular for the solid model generation and then integrate it with the in-house code I am developing for the CFD simulation of intracranial aneurysms. Is it possible to export the solid models generate in SimVascular to some other platform?

Thanks
Sincerely
Sheel Nidhan

SV exports vtp files for solid models generated by SV.

Can the VTP models then be used by Solidworks or Autodesk Fusion, or other programs?
I am trying something similar, but for cervical spine modeling from MRI, and Autodesk is crashing with the following message:


"This body contains a high percentage of triangles or n-sided polygons. Converting will result in a T-spline body that will not edit well and have poor performance.
For conversion to a T-spline body the mesh should consist primarily of four sided faces.

Mesh surface content:
Quads = 0
Triangles = 17212
Polygons = 0

Conversion has been aborted."

What can we do to avoid this?
I'm trying to combine meshes to perform Boolean subtraction.

Thanks!

Hi Hoon Choi,

There are two model types available in SimVascular: PolyData and OpenCASCADE.

A PolyData is a triangulated surface which is a discrete format consisting of points and connectivity as triangles. This format is typically saved as a .vtp or .stl. There is currently no easy way to convert form a triangulated surface into a usable CAD model. I think SolidWorks has a conversion tool that converts every single triangle into its own CAD surface (non-uniform rational b-spline surface). Thought this may convert into some sort of a CAD model, I'm not sure if you would be able to use it for anything.

An OpenCASCADE model is a non-uniform rational b-spline surface, and thus will be importable and usable in a CAD framework. I would recommend creating a model using this format, saving as a .step or .iges file, and trying to load that into Solidworks or Autodesk.

Thanks!

SimVascular Development Team