Subject: 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 with 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 with 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).

To create a torus as an ACIS solid

   1   Do one of the following to choose Torus ():

   On the ribbon, choose Draw 3D > Torus (in Draw 3D Solids).

   On the menu, choose Draw > 3D Solids > Torus.

   On the Draw 3D 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.

To create a torus as a Facet Model mesh

   1   Do one of the following to choose Torus ():

   On the ribbon, choose Draw 3D > Torus (in Facet Model Meshes).

   On the menu, choose Draw > Facet Model Meshes > Torus.

   On the Draw Facet Model toolbar, click the Torus tool.

   Type fmtorus 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.

To create a torus as a 3D mesh

   1   Do one of the following to choose Torus ():

   On the ribbon, choose Draw 3D > Torus (in Draw 3D Meshes).

   On the menu, choose Draw > 3D Meshes > Torus.

   On the Draw 3D Meshes 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.

 

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

Creating_tori
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