PreRefinements

Type:Vector<int> Range:[v_1, …] Default:[0] Appearance:simple

Causes one or several uniform pre-refinements of the initial mesh as contained in the file grid.jcm.

This parameter allows to improve the approximation quality in an a-priori way, i.e., before computing the solution. When the initial mesh is known to be too coarse to reach the desired accuracy, this parameter will help to speed up the computation. However, in most cases it is preferable to enforce a finer initial mesh by tuning the mesh generator JCMgeo, using, e.g., the meshing parameter MaximumSideLength.