fi.smaa.libror.LinearConstraintHelper.java Source code

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Here is the source code for fi.smaa.libror.LinearConstraintHelper.java

Source

/*
 * This file is part of libror.
 * libror is distributed from http://smaa.fi/libror
 * Copyright (C) 2011-15 Tommi Tervonen.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package fi.smaa.libror;

import java.util.List;

import org.apache.commons.math.optimization.linear.LinearConstraint;

public class LinearConstraintHelper {

    public static String constraintToString(LinearConstraint c) {
        StringBuffer sb = new StringBuffer();
        for (int i = 0; i < c.getCoefficients().getData().length; i++) {
            if (i > 0) {
                sb.append(" + ");
            }
            sb.append(c.getCoefficients().getData()[i]);
            sb.append("*x");
            sb.append(i);
        }
        sb.append(" ");
        sb.append(c.getRelationship().toString());
        sb.append(" ");
        sb.append(c.getValue());
        return sb.toString();
    }

    public static void printConstraint(LinearConstraint c) {
        System.out.println(constraintToString(c));
    }

    public static void printConstraints(List<LinearConstraint> consts) {
        int index = 1;
        for (LinearConstraint c : consts) {
            System.out.print("[C" + index + "] ");
            printConstraint(c);
            index++;
        }
    }
}