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Creating spheres

You can create a sphere. The latitude lines of a sphere are always parallel to the xy plane of the current UCS; the central axis is always parallel to the z-axis. You position a sphere by specifying its center point. You determine the size of a sphere by specifying either its radius or its diameter.

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

To create a sphere

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



Center (A) and radius (B) of the sphere.

The resulting sphere.

To create a sphere as a three-dimensional surface

To create a sphere as a surface instead of as a solid, the procedure is similar.

  1. Do one of the following:
    • On the Draw 3D toolbar, click the Sphere tool ().
    • Type ai_sphere and then press Enter.
  2. Specify the center of the sphere.
  3. Specify the radius or diameter.
  4. Specify the number of longitudinal sections that are perpendicular to the xy plane.
  5. 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 three-dimensional entities

Creating tori

Creating wedges

Create a box

Create a cone

Create a cylinder

Create a dish

Create a dome

Create a tetrahedron

Create a torus

Create a wedge

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