Creating Surfaces of Revolution

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A surface of revolution created by moving one selected entity around an axis (another selected entity). A typical use of surfaces of revolution is to create cones, by sweeping an entity about a vertical axis which shares a common end point.

Surfaces of Revolution can be created using the Revolution (Surface menu) command. The properties of a Surface of Revolution can be altered using the Entity Data (Edit menu) command.

 
To create a surface of revolution

  1. Select the Creating a Surface of Revolution command icon button from the Surface toolbar or the Revolution (Surface menu) command. The dialog box for the command is displayed.

  2. Enter the Start and End Angles. These are the angles of the start and end points on the arc of revolution.

  3. Enter a name for the surface, if required.

  4. Select Display to set the surface display parameters. The Display parameters now appear.

  5. Enter the required number of patches in the U and V directions into the U Patch and V Patch boxes respectively.

  6. Enter the required number of display points in the U and V directions into the U Display and V Display boxes respectively.

  7. Click OK to accept the parameters for the command.

  8. Enter a digitise in response to the ‘Digitise entity to be swept to form surface’ prompt.

  9. Enter a digitise in response to the ‘Digitise entity to form axis or rotation’ prompt.

  10. Continue from step 8 again or perform a finish.

Click here to view an example surface of revolution.