Analysis > Options > Renumber

Renumber surfaces so the volume is positive – during file load.

Map3D surfaces are defined with a top and bottom to enable distinction between the inside and outside of excavations, alternate material zones, etc. Other CAD packages may specify surfaces in a manner inconsistent with the Map3D convention. This option renumbers all surfaces with the Map3D convention such that they form zones with a positive volume.

Notes

This function must be checked before loading the model file

Analysis > Load Model.

It is strongly recommended that you check this option.