Complex Surfaces

Revolved Surfaces
Regenerates a three-dimensional model with hidden lines
1. Type Revsurf at the command prompt.
Command: revsurf
Current wire frame density: SURFTAB1=6 SURFTAB2=6
Select object to revolve: pick path curve
Select object that defines the axis of revolution: pick line
Specify start angle <0>: enter
Specify included angle (+=ccw, -=cw) <360>: enter


2.Surftab Variables
Sets the number of tabulations for both directions to be generated for
RULESURF and TABSURF. Also sets the mesh density in ROTATE3D
the M direction for REVSURF and EDGESURF commands.
1. Type Surftab1 at the command prompt.
Command: surftab1
Enter new value for SURFTAB1 <6>: 30
2. Type Surftab2 at the command prompt.
Command: surftab2
Enter new value for SURFTAB2 <6>: 30
3. Type Revsurf at the command prompt.
Command: revsurf
Current wire frame density: SURFTAB1=30 SURFTAB2=30
Select object to revolve: pick path curve
Select object that defines the axis of revolution: pick line
Specify start angle <0>: enter
Specify included angle (+=ccw, -=cw) <360>: enter


3.Tabulated Surfaces1. Type TABSURF at the command prompt.
Command: tabsurf
Select object for path curve: Select object for direction vector:



4 Ruled Surfaces
1. Type RULESURF at the command prompt.
Command: rulesurf
Current wire frame density: SURFTAB1=6
Select first defining curve: P1
Select second defining curve: P2



5.Edge SurfacesRegenerates a three-dimensional model with hidden lines
1. Type EDGESURF at the command prompt.
Command: edgesurf
Current wire frame density: SURFTAB1=20 SURFTAB2=10
Select object 1 for surface edge: P1
Select object 2 for surface edge: P2
Select object 3 for surface edge: P3
Select object 4 for surface edge: P4