Algorithm (Workflow)

The function SGdumbbell generates a dumbbell-shaped solid geometry. It accepts an optional input parameter type which determines the design method. The default value for type is 'rot'. The function returns a solid geometry object SG.

Input Parameters

• type: A string that specifies the design method. It can be 'bool' or 'rot'.

Output

• SG: The resulting solid geometry object.

Algorithm Steps

1. The function starts by retrieving the type parameter using getfuncparams, defaulting to 'rot' if not provided.
2. A switch statement is used to handle different design methods based on the type parameter.
3. Case 'bool':
   • The function creates a solid geometry using SGofCPLcommand with a specific command string that defines the shape.
   • The geometry is then processed with SGsurfacemeltbool to modify its surface.
4. Case 'rot':
   • A control point list CPL is defined to outline the shape.
   • SGofCPLrot is used to create a solid geometry by rotating the control points.
   • The geometry is grown using SGgrow and combined with the original using SGcat2.
5. Otherwise:
   • The same steps as in the 'rot' case are executed.
6. The resulting geometry is optimized using SGshortopti.
7. If no output is requested, the geometry is visualized using SGfigure and SGplotsurfaces.
8. The function checks for errors with SGcheckmeshlab and rechecks if any errors are found.