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authorHarpreet2015-11-19 15:06:02 +0530
committerHarpreet2015-11-19 15:06:02 +0530
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-/*
- * Quadratic Programming Toolbox for Scilab using IPOPT library
- * Authors :
- Sai Kiran
- Keyur Joshi
- Iswarya
-
-
- * Optimizing (minimizing) the quadratic objective function having any number of variables and linear constraints.
- *
-*/
-
-#ifndef __QuadNLP_HPP__
-#define __QuadNLP_HPP__
-
-#include "IpTNLP.hpp"
-extern "C"{
-#include <sciprint.h>
-
-}
-using namespace Ipopt;
-
-class QuadNLP : public TNLP
-{
- private:
- Index numVars_; // Number of variables.
-
- Index numConstr_; // Number of constraints.
-
- const Number *qMatrix_ = NULL; //qMatrix_ is a pointer to matrix of size numVars X numVars_
- // with coefficents of quadratic terms in objective function.
-
- const Number *lMatrix_ = NULL;//lMatrix_ is a pointer to matrix of size 1*numVars_
- // with coefficents of linear terms in objective function.
-
- const Number *conMatrix_ = NULL;//conMatrix_ is a pointer to matrix of size numConstr X numVars
- // with coefficients of terms in a each objective in each row.
-
- const Number *conUB_= NULL; //conUB_ is a pointer to a matrix of size of 1*numConstr_
- // with upper bounds of all constraints.
-
- const Number *conLB_ = NULL; //conLB_ is a pointer to a matrix of size of 1*numConstr_
- // with lower bounds of all constraints.
-
- const Number *varUB_= NULL; //varUB_ is a pointer to a matrix of size of 1*numVar_
- // with upper bounds of all variables.
-
- const Number *varLB_= NULL; //varLB_ is a pointer to a matrix of size of 1*numVar_
- // with lower bounds of all variables.
-
- const Number *varGuess_= NULL; //varGuess_ is a pointer to a matrix of size of 1*numVar_
- // with initial guess of all variables.
-
- Number *finalX_= NULL; //finalX_ is a pointer to a matrix of size of 1*numVar_
- // with final value for the primal variables.
-
- Number *finalZl_= NULL; //finalZl_ is a pointer to a matrix of size of 1*numVar_
- // with final values for the lower bound multipliers
-
- Number *finalZu_= NULL; //finalZu_ is a pointer to a matrix of size of 1*numVar_
- // with final values for the upper bound multipliers
-
- Number *finalLambda_= NULL; //finalLambda_ is a pointer to a matrix of size of 1*numConstr_
- // with final values for the upper bound multipliers
-
- Number finalObjVal_; //finalObjVal_ is a scalar with the final value of the objective.
-
- int iter_; //Number of iteration.
-
- int status_; //Solver return status
-
- QuadNLP(const QuadNLP&);
- QuadNLP& operator=(const QuadNLP&);
- public:
- /*
- * Constructor
- */
- QuadNLP(Index nV, Index nC, Number *qM, Number *lM, Number *cM, Number *cUB, Number *cLB, Number *vUB, Number *vLB):
- numVars_(nV),numConstr_(nC),qMatrix_(qM),lMatrix_(lM),conMatrix_(cM),conUB_(cUB),conLB_(cLB),varUB_(vUB),varLB_(vLB),finalX_(0), finalZl_(0), finalZu_(0), finalObjVal_(1e20){ }
-
-
- /* Go to :
-
- http://www.coin-or.org/Ipopt/documentation/node23.html#SECTION00053130000000000000
- For details about these below methods.
- */
- virtual ~QuadNLP();
- virtual bool get_nlp_info(Index& n, Index& m, Index& nnz_jac_g,
- Index& nnz_h_lag, IndexStyleEnum& index_style);
- virtual bool get_bounds_info(Index n, Number* x_l, Number* x_u,
- Index m, Number* g_l, Number* g_u);
- virtual bool get_starting_point(Index n, bool init_x, Number* x,
- bool init_z, Number* z_L, Number* z_U,
- Index m, bool init_lambda,
- Number* lambda);
- virtual bool eval_f(Index n, const Number* x, bool new_x, Number& obj_value);
- virtual bool eval_grad_f(Index n, const Number* x, bool new_x, Number* grad_f);
- virtual bool eval_g(Index n, const Number* x, bool new_x, Index m, Number* g);
- virtual bool eval_jac_g(Index n, const Number* x, bool new_x,
- Index m, Index nele_jac, Index* iRow, Index *jCol,
- Number* values);
- virtual bool eval_h(Index n, const Number* x, bool new_x,
- Number obj_factor, Index m, const Number* lambda,
- bool new_lambda, Index nele_hess, Index* iRow,
- Index* jCol, Number* values);
- virtual void finalize_solution(SolverReturn status,
- Index n, const Number* x, const Number* z_L, const Number* z_U,
- Index m, const Number* g, const Number* lambda, Number obj_value,
- const IpoptData* ip_data,
- IpoptCalculatedQuantities* ip_cq);
-
- const double * getX(); //Returns a pointer to a matrix of size of 1*numVar
- // with final value for the primal variables.
-
- const double * getZu(); //Returns a pointer to a matrix of size of 1*numVars
- // with final values for the upper bound multipliers
-
- const double * getZl(); //Returns a pointer to a matrix of size of 1*numVars
- // with final values for the upper bound multipliers
-
- const double * getLambda(); //Returns a pointer to a matrix of size of 1*numConstr
- // with final values for the constraint multipliers
-
-
- double getObjVal(); //Returns the output of the final value of the objective.
-
- double iterCount(); //Returns the iteration count
-
- int returnStatus(); //Returns the status count
-
-
-};
-
-#endif __QuadNLP_HPP__