C++ (Cpp) MatrixXs::rows Beispiele

Beispiel #1

Datei: DragDampingForce.cpp Projekt: xunilrj/sandbox

void DragDampingForce::addHessVToTotal( const VectorXs& x, const VectorXs& v, const VectorXs& m, MatrixXs& hessE )
{
  assert( x.size() == v.size() );
  assert( x.size() == m.size() );
  assert( x.size() == hessE.rows() );
  assert( x.size() == hessE.cols() );
  assert( x.size()%2 == 0 );
  
  // Compute the force Jacboian here!
   hessE.diagonal().array() += m_b;
}

Beispiel #2

Datei: TwoDScene.cpp Projekt: js4768/4167T2M1

void TwoDScene::accumulateddUdxdv( MatrixXs& A, const VectorXs& dx, const VectorXs& dv )
{
  assert( A.rows() == m_x.size() );
  assert( A.cols() == m_x.size() );
  assert( dx.size() == dv.size() );
  assert( dx.size() == 0 || dx.size() == A.rows() );

  if( dx.size() == 0 ) for( std::vector<Force*>::size_type i = 0; i < m_forces.size(); ++i ) m_forces[i]->addHessVToTotal( m_x, m_v, m_m, A );
  else                 for( std::vector<Force*>::size_type i = 0; i < m_forces.size(); ++i ) m_forces[i]->addHessVToTotal( m_x+dx, m_v+dv, m_m, A );
}

Beispiel #3

Datei: VortexForce.cpp Projekt: js4768/4167T2M1

void VortexForce::addHessXToTotal( const VectorXs& x, const VectorXs& v, const VectorXs& m, MatrixXs& hessE )
{
  assert( x.size() == v.size() );
  assert( x.size() == m.size() );
  assert( x.size() == hessE.rows() );
  assert( x.size() == hessE.cols() );
  assert( x.size()%2 == 0 );

//  scalar m1 = m(2*m_particles.second);
//  scalar m2 = m(2*m_particles.first);
//  
//  Vector2s nhat = x.segment<2>(2*m_particles.second)-x.segment<2>(2*m_particles.first); 
//  scalar r = nhat.norm(); 
//  assert( r != 0.0 ); 
//  nhat /= r;
//
//  Matrix2s entry = Matrix2s::Identity()-3.0*nhat*nhat.transpose();
//  entry *= m_G*m1*m2/r*r*r;
//  
//  hessE.block<2,2>(2*m_particles.first,2*m_particles.first)   += entry;
//  hessE.block<2,2>(2*m_particles.second,2*m_particles.second) += entry;
//  hessE.block<2,2>(2*m_particles.first,2*m_particles.second)  -= entry;
//  hessE.block<2,2>(2*m_particles.second,2*m_particles.first)  -= entry;

  std::cerr << outputmod::startred << "ERROR IN VORTEXFORCE: " << outputmod::endred << "No addHessXToTotal defined for VortexForce." << std::endl;
  exit(1);
}

Beispiel #4

Datei: DragDampingForce.cpp Projekt: B-Rich/sim3d

void DragDampingForce::addHessXToTotal( const VectorXs& x, const VectorXs& v, const VectorXs& m, MatrixXs& hessE )
{
  assert( x.size() == v.size() );
  assert( x.size() == m.size() );
  assert( x.size() == hessE.rows() );
  assert( x.size() == hessE.cols() );
  assert( x.size()%3 == 0 );

  // Nothing to do.
}

Beispiel #5

Datei: VortexForce.cpp Projekt: js4768/4167T2M1

void VortexForce::addHessVToTotal( const VectorXs& x, const VectorXs& v, const VectorXs& m, MatrixXs& hessE )
{
  assert( x.size() == v.size() );
  assert( x.size() == m.size() );
  assert( x.size() == hessE.rows() );
  assert( x.size() == hessE.cols() );
  assert( x.size()%2 == 0 );

  std::cerr << outputmod::startred << "ERROR IN VORTEXFORCE: " << outputmod::endred << "No addHessXToTotal defined for VortexForce." << std::endl;
  exit(1);
}

Beispiel #6

Datei: DragDampingForce.cpp Projekt: B-Rich/sim3d

void DragDampingForce::addHessVToTotal( const VectorXs& x, const VectorXs& v, const VectorXs& m, MatrixXs& hessE )
{
  assert( x.size() == v.size() );
  assert( x.size() == m.size() );
  assert( x.size() == hessE.rows() );
  assert( x.size() == hessE.cols() );
  assert( x.size()%3 == 0 );
  
  Matrix3s J = -m_b * Matrix3s::Identity();
  for (int i=0; i < x.size(); i += 3) {
    for (int j=0; j < x.size(); j += 3) {
      hessE.block<3, 3>(i, j) += J;
    }
  }
}