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Creating tori

You can create a three-dimensional donut or ring-shaped entity known as a torus. The diameter of a ring is always parallel to the xy plane of the current UCS. A torus is constructed by revolving a circle about a line drawn in the plane of the circle and parallel to the z-axis of the current UCS. You position a torus by specifying its center point. You determine the size of a torus by specifying its overall diameter or radius and the diameter or radius of the tube (the circle being revolved).


NOTE The torus is created as a three-dimensional ACIS solid.


To create a torus

  1. Do one of the following:
    • Choose Insert > 3D Entities > Torus.
    • On the Solids toolbar, click the Torus tool ().
    • Type torus and then press Enter.
  2. Specify the center of the whole torus.
  3. Specify the radius or diameter of the whole torus.
  4. Specify the radius or diameter of the body of the torus.

 

Center (A) and radius of the whole torus (B), and the radius of the body (C).

To create a torus as a three-dimensional surface

  1. Do one of the following:
    • To create a torus as a surface instead of as a solid, the procedure is similar.

    • On the Draw 3D toolbar, click the Torus tool ().
    • Type ai_torus and then press Enter.
  2. Specify the center of the whole torus.
  3. Specify the radius or diameter of the whole torus.
  4. Specify the radius or diameter of the body of the torus.
  5. Specify the number of longitudinal sections that are perpendicular to the xy plane.
  6. Specify the number of latitudinal sections that are parallel to the xy plane.

Creating boxes

Creating cones

Creating cylinders

Creating dishes

Creating domes

Creating pyramids

Creating spheres

Creating three-dimensional entities

Creating wedges

Create a box

Create a cone

Create a cylinder

Create a dish

Create a dome

Create a sphere

Create a tetrahedron

Create a wedge

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