imstk::InternalForceModel Class Reference

Base class for internal force model within the following context. More...

#include <imstkInternalForceModel.h>

Inheritance diagram for imstk::InternalForceModel:

Public Member Functions
virtual void	getInternalForce (const Vectord &u, Vectord &internalForce)=0
	Compute internal force internalForce at state u.
virtual void	getTangentStiffnessMatrix (const Vectord &u, SparseMatrixd &tangentStiffnessMatrix)=0
	Compute stiffness matrix tangentStiffnessMatrix at state .
virtual void	getTangentStiffnessMatrixTopology (vega::SparseMatrix **tangentStiffnessMatrix)=0
	Build the sparsity pattern for stiffness matrix.
virtual void	getForceAndMatrix (const Vectord &u, Vectord &internalForce, SparseMatrixd &tangentStiffnessMatrix)
	Compute both internal force internalForce and stiffness matrix tangentStiffnessMatrix at state . More...
virtual void	setTangentStiffness (std::shared_ptr< vega::SparseMatrix > K)=0
	Specify tangent stiffness matrix.

Static Public Member Functions
static void	updateValuesFromMatrix (std::shared_ptr< vega::SparseMatrix > vegaMatrix, double *values)
	Update the values of the Eigen sparse matrix given the linearized array of data from the Vega matrix. More...

Detailed Description

Base class for internal force model within the following context.

Definition at line 30 of file imstkInternalForceModel.h.

Member Function Documentation

getForceAndMatrix()

void imstk::InternalForceModel::getForceAndMatrix ( const Vectord &  u, Vectord &  internalForce, SparseMatrixd &  tangentStiffnessMatrix  )

virtual

Compute both internal force internalForce and stiffness matrix tangentStiffnessMatrix at state .

Note

This default implementation just call getInternalForce and getTangentStiffnessMatrix, but a more efficient implementation can be rewrite this.

Reimplemented in imstk::IsotropicHyperelasticFeForceModel, and imstk::CorotationalFemForceModel.

Definition at line 34 of file imstkInternalForceModel.cpp.

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updateValuesFromMatrix()

void imstk::InternalForceModel::updateValuesFromMatrix ( std::shared_ptr< vega::SparseMatrix >  vegaMatrix, double *  values  )

static

Update the values of the Eigen sparse matrix given the linearized array of data from the Vega matrix.

This operation should not add new values to the array since the matrices structures should remain the same. It just replaces the values in the array.

Definition at line 12 of file imstkInternalForceModel.cpp.

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The documentation for this class was generated from the following files:

• Source/DynamicalModels/InternalForceModel/imstkInternalForceModel.h
• Source/DynamicalModels/InternalForceModel/imstkInternalForceModel.cpp