Search found 1651 matches

by David Parker
Tue Jul 02, 2019 11:12 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Simulation User Guide Fix
Replies: 9
Views: 348

Re: Simulation User Guide Fix

Hi Justin, Thank you for your feedback. I am in the process of improving the SV documentation and would welcome any suggestions for improvements. The equations in the Simulation Guide section appear to be formatted fine with the Chrome Browser on MacOS (see attached image). Windows 10 Edge and IE br...
by David Parker
Thu Jun 27, 2019 9:37 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: 3D segmentation
Replies: 1
Views: 120

Re: 3D segmentation

HI Justin, The SimVascular documentation is out of date with regards to 3D Segmentation. We have recently released a new 3D Segmentation tool named **SV MITKSegmentation** that is accessible under the **Tools** menu in the SimVascular toolbar. We are in the process of updating the documentation. Sor...
by David Parker
Wed Jun 19, 2019 2:33 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Meshing doesn't work
Replies: 1
Views: 125

Re: Meshing doesn't work

Hi Aditi, Meshing errors are currently only shown in a console window on Windows and Ubuntu. On MacOS you need to execute SV from a terminal using /Applications/SimVascular.app/Contents/MacOS/SimVascular to see the errors. Meshing errors are typically caused by problems in the model. The model must ...
by David Parker
Mon Jun 17, 2019 8:57 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: How to move the stent in Simvascular?
Replies: 1
Views: 170

Re: How to move the stent in Simvascular?

Hi Chunyu, Building a CFD mesh incorporating a stent is a bit involved. The best way yo do this is to use a solid modeler to build a solid model of the vascular geometry and the stent, and then perform a Boolean subtraction of the stent from the vascular geometry. Another way would be to use VTK Boo...
by David Parker
Mon Jun 17, 2019 8:28 am
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: CELL output as regular grid
Replies: 1
Views: 99

Re: CELL output as regular grid

Hi Sekeun,

This is a pretty specialize application, projecting a unstructured grid to a structured grid, SimVascualar does not have such an operation.

You can use VTK to do this using the vtkSelectEnclosedPoints class.

Cheers,
Dave
by David Parker
Thu Jun 13, 2019 8:42 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Segmented mask to mesh
Replies: 3
Views: 271

Re: Segmented mask to mesh

Hi Sekeun,

You can create a segmentation of a binary image using the level set 2D segmentation method in SimVascular. You can then create a surface from the segmentation and generate a finite element mesh that can be used for a cfd simulation.

Cheers,
Dave
by David Parker
Wed Jun 12, 2019 7:00 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Running svSolver in Cluster
Replies: 5
Views: 398

Re: Running svSolver in Cluster

Hi Damian, Well, I created a VM with CentOS 7 and ran svsolver no problem with both MPICH and OpenMPI! I didn't think that would work ... The problem must have to do with setting up the environment you are running the job in to find MPI. I know on some clusters you must manually ask for certain appl...
by David Parker
Wed Jun 12, 2019 6:55 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Segmented mask to mesh
Replies: 3
Views: 271

Re: Segmented mask to mesh

Hi Sekeun, I don't quite understand your question. You generate a image mask identifying an anatomical feature (e.g. vessel lumen) like in the attached picture. But you don't want to create a segmentation based on the just the mask? You would like to use the mask as a guide for the segmentation? If ...
by David Parker
Wed Jun 12, 2019 6:17 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Installation_issues_Ubuntu19.04
Replies: 9
Views: 402

Re: Installation_issues_Ubuntu19.04

Hi Guillaume, It's not clear what's going on here. We have just recently found some problems with the MITK DICOM reader for CT data but I have not seen any problems with MR. Your data is detected as MR but then a reader can't be found for it so I'm thinking that there is a formatting issue with your...
by David Parker
Tue Jun 11, 2019 10:09 pm
Forum: SimVascular: Cardiovascular Modeling and Simulation Application
Topic: Running svSolver in Cluster
Replies: 5
Views: 398

Re: Running svSolver in Cluster

Hi Damian, Hmmm, I would not think that this would work, but maybe with the right CentOS it could. I'm not sure what is causing the undefined symbol: mpi_type_extent error, seems like the library you are linking to can't find this symbol, maybe due to CentOS / Ubuntu. Are you sure you are using an m...