Examples of ptolemy.data.unit.Solution

ptolemy.data.unit.Solution

An instance of this class contains a "solution" of Unit constraints. In essence, the solution represents the constraints between a set of Unit variables, and a set of Units. The table below illustrates this.

	V1	V2	...	Vl
C1	P11	P12	...	P1l	U1
C2	P21	P22	...	P2l	U2
:	:	:	...	:	:
Ck	Pk1	Pk2	...	Pkl	Uk

Here, the columns V1, V2, ..., Vl represent l variables. The columns C1, C2, ..., Ck represent k constraints. The U1, U2, ..., Uk on the right represent Units. The meaning of the ith row is that V1^Pi1 + V2^pi2 + .. +Vk^pik = Uk.

Generally, this class is used by creating an instance that is derived from the Units specifications of a model. Then, a method is invoked that results in other instances being created that are transformations of the original instance. These transformed instances are equivalent, in a sense, to the original instance. The difference is that they provide a different perspective than that of the original instance. In particular, some of the transformed instances can be used to highlight inconsistencies not apparent in the original instance. @author Rowland R Johnson @version $Id: Solution.java,v 1.27 2007/12/16 07:29:45 cxh Exp $ @since Ptolemy II 4.0 @Pt.ProposedRating Red (rowland) @Pt.AcceptedRating Red (rowland)


            try {
                _uConstraints = new UnitConstraints(_model, _entities,
                        _relations);


                Solution solution = _uConstraints.completeSolution();
                _fullSolutionResult.setText(solution.getShortStateDesc());


                //solution.trace();
            } catch (IllegalActionException e) {
                MessageHandler.error("Full Solver failed: ", e);
                return;

        int index = _solutionsList.getSelectedIndex();


        if (index >= 0) {
            _showComponents();


            Solution solution = (Solution) (_solutions.elementAt(index));
            solution.annotateGraph();


            //solution.trace();
        }
    }

Examples of ptolemy.data.unit.Solution

Related Classes of ptolemy.data.unit.Solution