#include <qpalm.hpp>

Detailed Description

Stores the matrices and vectors that define the problem.

\begin{align*} & \operatorname*{\mathrm{minimize}}_x & & \tfrac{1}{2}x^\top Q x + q^\top x + c \\ & \text{subject to} & & b_\mathrm{min} \leq Ax \leq b_\mathrm{max} \end{align*}

Examples: examples/cxx/qpalm_demo.cpp.

Definition at line 39 of file qpalm.hpp.

Collaboration diagram for qpalm::Data:

Public Member Functions
	Data (index_t n, index_t m)
	Construct a problem of dimension `n` with `m` constraints.

	Data (index_t n, index_t m, index_t nnz_Q, index_t nnz_A)
	Construct a problem of dimension `n` with `m` constraints, allocating an uninitialized upper-triangular Q matrix (with implicit symmetry) of `nnz_Q` entries, and an uninitialized A matrix of `nnz_A` entries.

void	set_Q (const sparse_mat_ref_t &Q)
	Set the sparse Q matrix. Creates a copy.

void	set_A (const sparse_mat_ref_t &A)
	Set the sparse A matrix. Creates a copy.

const ::QPALMData *	get_c_data_ptr () const
	Get a pointer to the underlying C data structure.

sparse_mat_view_t	get_Q () const
	Get a view on the Q matrix of the problem.

sparse_mat_view_t	get_A () const
	Get a view on the A matrix of the problem.

Data Fields
index_t	n
	Problem dimension (size of x and q, number rows and columns of Q, number of columns of A).

index_t	m
	Number of constraints (size of bmin and bmax, number of rows of A).

ladel_sparse_matrix_ptr	Q = ladel_sparse_create(n, n, 0, UPPER)

ladel_sparse_matrix_ptr	A = ladel_sparse_create(m, n, 0, UNSYMMETRIC)

c_float	c = 0

vec_t	q = vec_t::Zero(n)

vec_t	bmin = vec_t::Zero(m)

vec_t	bmax = vec_t::Zero(m)

Constructor & Destructor Documentation

◆ Data() [1/2]

qpalm::Data::Data	(	index_t	n,
		index_t	m
	)

inline

Construct a problem of dimension n with m constraints.

Definition at line 56 of file qpalm.hpp.

◆ Data() [2/2]

qpalm::Data::Data	(	index_t	n,
		index_t	m,
		index_t	nnz_Q,
		index_t	nnz_A
	)

inline

Construct a problem of dimension n with m constraints, allocating an uninitialized upper-triangular Q matrix (with implicit symmetry) of nnz_Q entries, and an uninitialized A matrix of nnz_A entries.

Definition at line 60 of file qpalm.hpp.