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Donut

Use Donut to create closed shapes from two concentric circles. Each circle is made of four vertices.

  • Create panel > (Shapes) > Splines > Object Type rollout > Donut
  • Default menu: Create menu > Shapes > Donut
  • Alt menu: Objects menu > Shapes > Donut

Example of donut

Tip: While creating a Donut spline, you can use the mouse to pan and orbit the viewport between steps. To pan the viewport, drag with the middle mouse button or scroll the mouse wheel. To orbit the viewport, hold down Alt and drag with the middle mouse button or scroll the mouse wheel.

Procedures

To create a donut:

  1. Go to the Create panel and click (Shapes).
  2. Click Donut.
  3. Choose a creation method.
  4. Drag and release the mouse button to define the first donut circle.
  5. Move the mouse and then click to define the radius of the second concentric donut circle.

    The second circle can be larger or smaller than the first.

Interface

Rendering and Interpolation rollouts

Most spline-based shapes share these parameters. For details, see Rendering rollout and Interpolation rollout.

Creation Method rollout

The Donut shape offers the standard creation-method choice: Center or Edge. For details, see Creation Method rollout.

Keyboard Entry rollout

Creates a Donut spline from the keyboard. Use the X/Y/Z settings to specify the center point and the remaining parameters to specify the radii, then click Create. After creating the spline, you can use the Parameters rollout controls to adjust the settings (see following).

Parameters rollout

Once you have created a donut, you can make changes using the following parameters:

Radius 1

The radius of the first circle.

Radius 2

The radius of the second circle.

Parent topic: Splines

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