2. MODELING

CHAPTER 2 "MODELLING" 23 4. Surface The "Surface" command group contains the commands to model: -Surface 2D and - Surface 3D Each command includes the corresponding sub-commands describing, defining, editing and calculating the meshes. OBSERVATION: 3D surfaces offer greater possibilities than 2D surfaces which are more limited. You can simulate surfaces with both but be aware that with 2D surfaces with common boundaries are not automatically connected, which is the case with 3D (see EXAMPLE: MULTIPLE SURFACES MULTIPLE SURFACES)