At this stage, DimensionMG rearranges the tetrahedrons around these missing triangles so that they eventually do exist within the 3D mesh. This stage usually doesn't have problems, but if the surface mesh is defined strange, this stage could have some problems and not be able to re-construct all surface elements. At Stage 4, DimensionMG automatically creates all interior points within the mesh. If the surface mesh is very refined, so will be the final 3D mesh. This stage usually doesn't have any problems, but sometimes trouble can occur and are usually caused by numerical precision errors.
Improvement is accomplished by local rearrangements of the elements, and slight nodal repositioning.
Improvement in aspect-ratios is usually accomplished, but the amount of improvement can be varied. When the program finishes, and a successful mesh was created, it writes out 4 files. During the mesh generation process, the program asks a few questions about how to generate the mesh. Most if not all of these questions can be answered with command-line options, as well as some other options that help in successfully generating a 3D mesh. If this option is not used, the program will prompt the user for this information when it runs.