C++ VectorXd::data方法代碼示例

bool toEigen(const yarp::sig::Vector & vec_yrp, Eigen::VectorXd & vec_eigen)
{
 if( vec_yrp.size() != vec_eigen.size() ) { vec_eigen.resize(vec_yrp.size()); }
    if( memcpy(vec_eigen.data(),vec_yrp.data(),sizeof(double)*vec_eigen.size()) != NULL ) {
        return true;
    } else {
        return false;
    }
}

	output fc_rnn::execute(input const& in)
	{
		// Set activation of input neurons
		auto const num_input = in.size();
		for(size_t n = 0; n < num_input; ++n)
		{
			vInput[n] = in[n];
		}

		// Summation for hidden neurons
		Eigen::VectorXd vHiddenSums =
			wmInput * vInput +
			wmHidden * vHidden;
		// Transfer function
		vHidden =
			evaluate(af_hidden, vHiddenSums.array());

		// TODO: Maybe should just store as a single vector?
		Eigen::VectorXd joined(input_layer_count() + hidden_count());
		joined << vInput, vHidden;
		Eigen::VectorXd vOutputSums =
			wmOutput * joined;
		Eigen::VectorXd vOutput =
			evaluate(af_output, vOutputSums.array());

		// Return the output values
		output out{ output_count() };
		std::copy(vOutput.data(), vOutput.data() + output_count(), out.begin());
		return out;
	}

void RigidBodies3DSobogusInterface::fromPrimal( const unsigned num_bodies, const Eigen::VectorXd& masses, const Eigen::VectorXd& f_in, const unsigned num_contacts, const Eigen::VectorXd& mu, const Eigen::Matrix<double,Eigen::Dynamic,Eigen::Dynamic,Eigen::ColMajor>& contact_bases, const Eigen::VectorXd& w_in, const Eigen::VectorXi& obj_a, const Eigen::VectorXi& obj_b, const Eigen::Matrix<double,Eigen::Dynamic,Eigen::Dynamic,Eigen::RowMajor>& HA, const Eigen::Matrix<double,Eigen::Dynamic,Eigen::Dynamic,Eigen::RowMajor>& HB )
{
  reset();

  // Copy M
  // We don't actually need it after having computed a factorization of M, but we keep it around
  // in case we want to use dumpToFile()
  assert( m_primal != nullptr );
  m_primal->M.reserve( num_bodies );
  m_primal->M.setRows( num_bodies, 6 );
  m_primal->M.setCols( num_bodies, 6 );
  for( unsigned bdy_idx = 0; bdy_idx < num_bodies; ++bdy_idx )
  {
    m_primal->M.insertBack( bdy_idx, bdy_idx ) = Eigen::MatrixXd::Map( &masses( 36 * bdy_idx ), 6, 6 );
  }
  m_primal->M.finalize();

  // E
  m_primal->E.reserve( num_contacts );
  m_primal->E.setRows( num_contacts );
  m_primal->E.setCols( num_contacts );
  for( unsigned cntct_idx = 0; cntct_idx < num_contacts; ++cntct_idx )
  {
    m_primal->E.insertBack( cntct_idx, cntct_idx ) = contact_bases.block<3,3>( 0, 3 * cntct_idx );
  }
  m_primal->E.finalize() ;
  m_primal->E.cacheTranspose() ;

  // Build H
  m_primal->H.reserve( 2 * num_contacts );
  m_primal->H.setRows( num_contacts );
  m_primal->H.setCols( num_bodies, 6 );
  #ifndef BOGUS_DONT_PARALLELIZE
  #pragma omp parallel for
  #endif
  for( unsigned cntct_idx = 0; cntct_idx < num_contacts; ++cntct_idx )
  {
    if( obj_a( cntct_idx ) >= 0 && obj_b( cntct_idx ) >= 0 )
    {
      m_primal->H.insert( cntct_idx, obj_a( cntct_idx ) ) =   HA.block<3,6>( 3 * cntct_idx, 0 );
      m_primal->H.insert( cntct_idx, obj_b( cntct_idx ) ) = - HB.block<3,6>( 3 * cntct_idx, 0 );
    }
    else if( obj_a( cntct_idx ) >= 0 && obj_b( cntct_idx ) == -1 )
    {
      m_primal->H.insert( cntct_idx, obj_a( cntct_idx ) ) = HA.block<3,6>( 3 * cntct_idx, 0 );
    }
    #ifndef NDEBUG
    else
    {
      std::cerr << "Error, impossible code path hit in Balls2DSobogus::fromPrimal. This is a bug." << std::endl;
      std::exit( EXIT_FAILURE );
    }
    #endif
  }
  m_primal->H.finalize();

  m_primal->f = f_in.data();
  m_primal->w = w_in.data();
  m_primal->mu = mu.data();
}

// Parse right hand side arguments for a matlab mex function.
//
// Inputs:
//   nrhs  number of right hand side arguments
//   prhs  pointer to right hand side arguments
// Outputs:
//   V  n by dim list of mesh vertex positions
//   F  m by dim list of mesh face indices
//   s  1 by dim bone source vertex position
//   d  1 by dim bone dest vertex position
// "Throws" matlab errors if dimensions are not sane.
void parse_rhs(
  const int nrhs, 
  const mxArray *prhs[], 
  Eigen::MatrixXd & V,
  Eigen::MatrixXi & F,
  Eigen::VectorXd & s,
  Eigen::VectorXd & d)
{
  using namespace std;
  if(nrhs < 4)
  {
    mexErrMsgTxt("nrhs < 4");
  }
  const int dim = mxGetN(prhs[0]);
  if(dim != 3)
  {
    mexErrMsgTxt("Mesh vertex list must be #V by 3 list of vertex positions");
  }
  if(dim != (int)mxGetN(prhs[1]))
  {
   mexErrMsgTxt("Mesh facet size must equal dimension");
  }
  if(dim != (int)mxGetN(prhs[2]))
  {
   mexErrMsgTxt("Source dim must equal vertex dimension");
  }
  if(dim != (int)mxGetN(prhs[3]))
  {
   mexErrMsgTxt("Dest dim must equal vertex dimension");
  }
  // set number of mesh vertices
  const int n = mxGetM(prhs[0]);
  // set vertex position pointers
  double * Vp = mxGetPr(prhs[0]);
  // set number of faces
  const int m = mxGetM(prhs[1]);
  // set face index list pointer
  double * Fp = mxGetPr(prhs[1]);
  // set source and dest pointers
  double * sp = mxGetPr(prhs[2]);
  double * dp = mxGetPr(prhs[3]);
  // resize output to transpose
  V.resize(n,dim);
  copy(Vp,Vp+n*dim,V.data());
  // resize output to transpose
  F.resize(m,dim);
  // Q: Is this doing a cast?
  // A: Yes.
  copy(Fp,Fp+m*dim,F.data());
  // http://stackoverflow.com/a/4461466/148668
  transform(F.data(),F.data()+m*dim,F.data(),
    bind2nd(std::plus<double>(),-1.0));
  // resize output to transpose
  s.resize(dim);
  copy(sp,sp+dim,s.data());
  d.resize(dim);
  copy(dp,dp+dim,d.data());
}

void JointTrajGeneratorRML::computeTrajectory(
    const ros::Time rtt_now,
    const Eigen::VectorXd &init_position,
    const Eigen::VectorXd &init_velocity,
    const Eigen::VectorXd &init_acceleration,
    const ros::Duration duration,
    const Eigen::VectorXd &goal_position,
    const Eigen::VectorXd &goal_velocity,
    boost::shared_ptr<ReflexxesAPI> rml,
    boost::shared_ptr<RMLPositionInputParameters> rml_in,
    boost::shared_ptr<RMLPositionOutputParameters> rml_out,
    RMLPositionFlags &rml_flags) const
{
  // Update RML input parameters
  rml_in->SetMaxVelocityVector(&max_velocities_[0]);
  rml_in->SetMaxAccelerationVector(&max_accelerations_[0]);
  rml_in->SetMaxJerkVector(&max_jerks_[0]);

  // Set initial params
  for(size_t i=0;i<n_dof_;i++) {
    rml_in->SetSelectionVectorElement(true,i);
  }

  // Override initial state if necessary
  rml_in->SetCurrentPositionVector(init_position.data());
  rml_in->SetCurrentVelocityVector(init_velocity.data());
  rml_in->SetCurrentAccelerationVector(init_acceleration.data());

  // Set goal params
  rml_in->SetTargetPositionVector(goal_position.data());
  rml_in->SetTargetVelocityVector(goal_velocity.data());

  // Compute the trajectory
  if(verbose_) RTT::log(RTT::Debug) << ("RML Recomputing trajectory...") << RTT::endlog();

  // Set desired execution time for this trajectory (definitely > 0)
  rml_in->SetMinimumSynchronizationTime(std::max(0.0,duration.toSec()));

  // Verbose logging
  if(verbose_) RTT::log(RTT::Debug) << "RML IN: time: "<<rml_in->GetMinimumSynchronizationTime() << RTT::endlog();
  if(verbose_) RMLLog(RTT::Info, rml_in);

  // Compute trajectory
  int rml_result = rml->RMLPosition(
      *rml_in.get(),
      rml_out.get(),
      rml_flags);

  // Get expected time
  if(verbose_) RTT::log(RTT::Debug) << "RML OUT: time: "<<rml_out->GetGreatestExecutionTime() << RTT::endlog();

  // Throw exception on result
  this->handleRMLResult(rml_result);
}

Eigen::VectorXd TargetTrackingController::getControl(const EKF *ekf, const MultiAgentMotionModel *motionModel, const std::vector<const SensorModel*> &sensorModel, double *f) const {
  Evaluator evaluator(ekf, motionModel, sensorModel, params);

  Eigen::VectorXd p = Eigen::VectorXd::Zero(motionModel->getControlDim());
  Eigen::VectorXd lowerBound = Eigen::VectorXd::Constant(motionModel->getControlDim(), params("multi_rotor_control/controlMin").toDouble());
  Eigen::VectorXd upperBound = Eigen::VectorXd::Constant(motionModel->getControlDim(), params("multi_rotor_control/controlMax").toDouble());

  nlopt_opt opt = nlopt_create(NLOPT_LN_COBYLA, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LN_BOBYQA, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LN_NEWUOA_BOUND, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LN_PRAXIS, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LN_NELDERMEAD, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LN_SBPLX, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_GN_ORIG_DIRECT, p.size()); // failed
//  nlopt_opt opt = nlopt_create(NLOPT_GN_ORIG_DIRECT_L, p.size()); // very good: p    0.0118546 -6.27225e-05  6.27225e-05 -2.09075e-05  2.09075e-05 -8.51788e-06 -2.09075e-05           10
//  nlopt_opt opt = nlopt_create(NLOPT_GN_ISRES, p.size()); // rather bad
//  nlopt_opt opt = nlopt_create(NLOPT_GN_CRS2_LM, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LD_MMA, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LD_CCSAQ, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LD_SLSQP, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LD_LBFGS, p.size());
//  nlopt_opt opt = nlopt_create(NLOPT_LD_TNEWTON_PRECOND, p.size()); // bad
//  nlopt_opt opt = nlopt_create(NLOPT_LD_TNEWTON_PRECOND_RESTART, p.size()); // bad
//  nlopt_opt opt = nlopt_create(NLOPT_LD_VAR2, p.size());

  nlopt_set_min_objective(opt, f_evaluate, &evaluator);
  nlopt_set_lower_bounds(opt, lowerBound.data());
  nlopt_set_upper_bounds(opt, upperBound.data());
  nlopt_set_ftol_abs(opt, 1E-6);
  nlopt_set_xtol_rel(opt, 1E-3);
  nlopt_set_maxeval(opt, 1E8);
  nlopt_set_maxtime(opt, 7200);
  double pa[p.size()];
  memcpy(pa, p.data(), p.size()*sizeof(double));
  double cost = 0;
//  std::string tmp; std::cerr << "Press enter to start optimization\n"; std::getline(std::cin, tmp);
  nlopt_result ret = nlopt_optimize(opt, pa, &cost);
  Eigen::VectorXd p_res = Eigen::Map<Eigen::VectorXd>(pa, p.size());
  if (f)
    *f = cost;

  std::cerr << "\nInitial guess:\n";
  std::cerr << "  p " << p.transpose() << "\n";
  std::cerr << "  value " << evaluator.evaluate(p) << "\n";

  std::cerr << "Optimization result (return code " << ret << "):\n";
  std::cerr << "  p " << p_res.transpose() << "\n";
  std::cerr << "  value " << evaluator.evaluate(p_res) << "\n";
  nlopt_destroy(opt);
  return p_res;
}

//==============================================================================
void Function::evalGradient(const Eigen::VectorXd& _x,
                            Eigen::Map<Eigen::VectorXd> _grad)
{
  // TODO(MXG): This is for backwards compatibility
  Eigen::Map<const Eigen::VectorXd> temp(_x.data(), _x.size());
  evalGradient(temp, _grad);
}

//==============================================================================
double Function::eval(const Eigen::VectorXd& _x)
{
  // TODO(MXG): This is for backwards compatibility. This function should be
  // made pure abstract with the next major version-up
  Eigen::Map<const Eigen::VectorXd> temp(_x.data(), _x.size());
  return eval(temp);
}

bool AnchoredRectangleHandler::init(FactorGraphFilter* f, const string &name,
    const Eigen::VectorXd & T_OS, const Eigen::VectorXd & K) {

  _filter = f;
  _sensorName = name;

  // TODO: currently FHP works only if system is camera-centric, i.e., T_OS = I

  _filter->addConstantParameter("Camera_SOx", T_OS(0), true);
  _filter->addConstantParameter("Camera_SOy", T_OS(1), true);
  _filter->addConstantParameter("Camera_SOz", T_OS(2), true);

  _filter->addConstantParameter("Camera_qOSx", T_OS(4), true);
  _filter->addConstantParameter("Camera_qOSy", T_OS(5), true);
  _filter->addConstantParameter("Camera_qOSz", T_OS(6), true);

  _filter->addConstantParameter(Matrix3D, "Camera_CM", K, true);

  Eigen::Map<const Eigen::Matrix<double, 3, 3, Eigen::RowMajor> > KasMatrix(
      K.data());
  _K = KasMatrix;

  _fx = _K(0, 0);
  _fy = _K(1, 1);

  return true;

}

bool BlockSparseMatrix::ConjugateGradientSolve(const Eigen::VectorXd& rhs, Eigen::VectorXd& sol)
{
	//sol = mMatrix.llt().solve(rhs);
	return LltSolve(rhs, sol);

	MatrixSolver* solver = new PCGSolver();
	int vectorLength = static_cast<int>(rhs.size());
	double* result = new double[vectorLength];
	double* rhsData = new double[vectorLength];
	memcpy(rhsData, rhs.data(), vectorLength * sizeof(double));

	if (mbCSRDirty)
	{
		mCSREquivalent.ConvertFromBlockSparseMatrix(*this);
		mbCSRDirty = false;
	}

	solver->SetMatrix(&mCSREquivalent);
	solver->SetRHS(rhsData);
	solver->Solve(result, true);
	sol.resize(vectorLength);
	for (int i = 0; i < vectorLength; ++i)
		sol[i] = result[i];

	delete[] rhsData;
	delete[] result;
	delete solver;
	return true;
}

 bool ExpMapQuaternion::isInM_(const Eigen::VectorXd& val, const double& )
 {
   bool out(val.size()==4);
   double norm = toConstQuat(val.data()).norm();
   out = out && (fabs(norm - 1) < prec);
   return out;
 }

/**
 * @function getNearestNeighbor
 */
int JG_RRT::getNearestNeighbor( const Eigen::VectorXd &qsample )
{
    struct kdres* result = kd_nearest( kdTree, qsample.data() );
    uintptr_t nearest = (uintptr_t) kd_res_item_data( result );

    activeNode = nearest;
    return nearest;
}

void save( Archive & ar,
           const Eigen::VectorXd & t,
           const unsigned int file_version )
{
    int n0 = t.size();
    ar << BOOST_SERIALIZATION_NVP( n0 );
    ar << boost::serialization::make_array( t.data(),
                                            t.size() );
}

void CodeAtlas::FuzzyDependBuilder::buildChildDepend( QMultiHash<QString, ChildPack>& childList , 
													 Eigen::SparseMatrix<double>& vtxEdgeMat,
													 Eigen::VectorXd&             edgeWeightVec,
													 QList<FuzzyDependAttr::DependPair>& dependPair)
{
	QStringList codeList;
	QVector<ChildPack*> childPackPtr;
	for (QMultiHash<QString, ChildPack>::Iterator pChild = childList.begin();
		pChild != childList.end(); ++pChild)
	{
		codeList.push_back(pChild.value().m_code);
		childPackPtr.push_back(&pChild.value());
	}

	std::vector<Triplet> tripletArray;
	QVector<double>		 edgeWeightArray;

	// add dependency edges between child nodes
	int ithSrc = 0;
	for (QMultiHash<QString, ChildPack>::Iterator pChild = childList.begin();
		pChild != childList.end(); ++pChild, ++ithSrc)
	{
		// for each child, find number of occurrences of this child's name
		ChildPack& srcChild = pChild.value();
		const QString& srcName = pChild.key();
		QVector<int> occurence;
		WordExtractor::findOccurrence(srcName, codeList, occurence);

		for (int ithTar = 0; ithTar < childPackPtr.size(); ++ithTar)
		{
			int nOccur = occurence[ithTar];
			if (nOccur == 0 || ithTar == ithSrc)
				continue;

			ChildPack& tarChild = *childPackPtr[ithTar];

			SymbolEdge::Ptr pEdge = SymbolTree::getOrAddEdge(srcChild.m_pNode, tarChild.m_pNode, SymbolEdge::EDGE_FUZZY_DEPEND);
			pEdge->clear();
			pEdge->strength() = nOccur;

			int nEdge = tripletArray.size()/2;
			tripletArray.push_back(Triplet(srcChild.m_index, nEdge ,1.0));
			tripletArray.push_back(Triplet(tarChild.m_index, nEdge ,-1.0));

			edgeWeightArray.push_back(nOccur);
			dependPair.push_back(FuzzyDependAttr::DependPair(srcChild.m_pNode, tarChild.m_pNode, nOccur));
		}
	}

	if (int nEdges = tripletArray.size()/2)
	{
		vtxEdgeMat.resize(childList.size(),nEdges);
		vtxEdgeMat.setFromTriplets(tripletArray.begin(), tripletArray.end());
		edgeWeightVec.resize(nEdges);
		memcpy(edgeWeightVec.data(), edgeWeightArray.data(), sizeof(double)* nEdges);
	}
}

void load( Archive & ar,
           Eigen::VectorXd & t,
           const unsigned int file_version )
{
    int n0;
    ar >> BOOST_SERIALIZATION_NVP( n0 );
    t.resize( n0 );
    ar >> make_array( t.data(), t.size() );
}