About Selecting Solutions

During the solution of, for example, time-dependent models or parametric sweep models, more than one solution is generated, and in order to do relevant postprocessing the correct set of solutions needs to be selected among them. How many solutions the result features can display vary, the main difference being between single-select and multi-select features. Single solution selection is available when only one solution at a time can be visualized, for example in 2D and 3D plots. In numerical features and 1D plots multi-select is used to be able to display plots relating to more than one parameter value at a time.

There are two ways to select solutions: by solution number and by solution level. COMSOL Multiphysics keeps them synchronized as far as possible.

Selecting solutions by solution number is a method that is tightly linked to the solution representation used by the solvers. The solution level method is structurally similar to the set up of the studies. Setting any one property belonging to either method triggers a synchronization in which all properties of that method are mapped to those of the other method. Mapping to the solution number method always works, since that case is the more general. If, on the other hand, mapping to the solution level method fails, its properties are set to their default settings.

The solrepresentation property is set to "solnum" automatically if the solution number method is the only one able to represent the selection made. On solving it is set to "solutioninfo" if the solution level method can be used to represent the previous selection. The solutionrepresentation property also decides which method is visible in the COMSOL Desktop.