@charlesactive 2 months, 3 weeks ago
Hugo replied to the topic Collision detection of "Interactive Training System for Interventional…." in the forum Programming with SOFA 2 months, 3 weeks ago
I see you are still digging in the papers.
The collision in SOFA works in three steps: broad detection check (using coarse BVH), narrow detection (several options here, by default using discrete intersection) and response.
In the paper we are following this process with:
– broad phase using BVH
– narrow phase using discrete…[Read more]
Hugo replied to the topic How to determine the source of an stress sigularity? in the forum Programming with SOFA 3 months, 2 weeks ago
Understanding the source of an error is physics simulation is often complex due to the different possible cause of errors, as you explained. Therefore, there is no straightforward answer.
Numerical analysis is one the main key : analyzing the system matrix, the force vectors, the convergence of the solver and the input parameters.…[Read more]
Hugo replied to the topic New approaches to catheter navigation for interventional radiology simulation in the forum Announcements / Infos 3 months, 3 weeks ago
Sorry @charles but everything looks fine here.
Hugo replied to the topic New approaches to catheter navigation for interventional radiology simulation in the forum Announcements / Infos 3 months, 4 weeks ago
You are talking about a 2006 paper! I was even not done with my studies!
I don’t see the appropriate equations that you mention. Can you indicate me using the linked paper above?
A more recent paper is available here: Interactive simulation of embolization coils: Modeling and experimental validation
You can specify to your MechanicalObject (containing the rigid frames) their position and orientation with a quaternion.
I think the ArticulatedSystemMapping is close to what you need but I remember struggling a bit myself using it, but it’s worth having a look (in examples/Components/mapping)
Hugo replied to the topic New approaches to catheter navigation for interventional radiology simulation in the forum Announcements / Infos 4 months ago
I am really sorry for the delay of my reply to your private email. I answered it. We are currently very busy focused on the SOFA Week.
Prices can not be directly provided since authors / institutions owning the codes have different practices. Moreover, prices depend on many parameters like use, domain of use, exclusivity etc.