Alex Bilger

[plugins] Add fetchable ModelOrderReduction

1

______________________________________________________ By submitting this pull request, I acknowledge that **I have read, understand, and agree [SOFA Developer Certificate of Origin (DCO)](https://github.com/sofa-framework/sofa/blob/master/CONTRIBUTING.md#sofa-developer-certificate-of-origin-dco)**. ______________________________________________________ **Reviewers will merge this pull-request only if** -...

[HyperElastic] Introduce stable Neo Hookean hyperelastic material

4

On top of the introduction of the stable Neo Hookean hyperelastic material (from Smith, Breannan, Fernando De Goes, and Theodore Kim. "Stable neo-hookean flesh simulation." ACM Transactions on Graphics (TOG)...

[LinearSystem.Direct] Remove metis dependency

6

Everything depending on Metis is now in moved in https://github.com/sofa-framework/Sofa.Metis [ci-depends-on https://github.com/sofa-framework/CSparseSolvers/pull/3] ______________________________________________________ By submitting this pull request, I acknowledge that **I have read, understand, and agree [SOFA Developer Certificate...

My goal was to simplify the writing of vector operations in ODE solvers. Before ```C++ VMultiOp ops; ops.resize(2); // vel += dx * dt ops[0].first = vel2; //

MechanicalMatrixMapper fast matrix product does not detect changes in the jacobian matrix

1

In MechanicalMatrixMapper, the fast matrix product relies on the fact that both sparse matrices do not change their structure. If one of the matrices structure changes, the fast matrix product...

ObjectFactory accumulate description by class name

1

### Problem **Description** Let's consider a component that is registered in the factory using `RegisterObject` more than once, but with different templates. For example, `CGLinearSolver` is registered in `SofaKernel/modules/SofaBaseLinearSolver/src/SofaBaseLinearSolver/CGLinearSolver.cpp`, and...

Isolation of METIS and CSPARSE

1

METIS and CSPARSE are used for sparse solvers. However, they can be better integrated. # METIS - it could be useful to isolate METIS. Currently, it is an extlib in...

Due to #2777, several methods must be implemented to replace the old API: # Force fields The new functions are `buildStiffnessMatrix` (replaces `addKToMatrix`) and `buildDampingMatrix` (replaces `addBToMatrix`) - [x] AngularSpringForceField...

In the file `LCPcalc.cpp`. Overall, this file requires some love

For now the performances are not better. It needs more work ______________________________________________________ By submitting this pull request, I acknowledge that **I have read, understand, and agree [SOFA Developer Certificate of...