Often we create a 3D model from 2D drawings by extruding (giving height) to planar entities or closed areas. For instance, in architecture, we may construct walls from plan views. The following sections present the commands for extrusion.
Probably the most used command for modeling in 3D is
EXTRUDE, which is presented next.
EXTRUDE command (alias
EXT) allows for extruding or giving height to planar entities, thus creating volumes. The command starts by showing information about the wire frame density and the MOde default option; it then asks for the objects to be extruded:
Command: EXTRUDE Current wire frame density: ISOLINES=4, Closed profiles creation mode =