Geometric Primitives

The geometric primitives supported within CUBIT are pre-defined templates of three-dimensional geometric shapes. Users can create specific instances of these shapes by providing values to the parameters associated with the chosen primitive. Primitives available in CUBIT include the brick, cylinder, torus, prism, frustum, pyramid, and sphere. Each primitive, along with the command used to generate it and the parameters associated with it, are described next. For some primitives, several options can be used to generate them, and are described as well.

The following Primitives can be generated with CUBIT:

	Brick
	Cylinder
	Prism
	Frustum
	Pyramid
	Sphere
	Torus

General Notes

• Primitives are created and given an ID equal to one plus the current highest body ID in the model.
• Primitive solids are created with their centroid at the origin or the world coordinate system.
• For primitives with a Height or Z parameter, the axis going through these primitives will be aligned with the Z axis.
• For primitives with a Major Radius and a Minor Radius, the Major Radius will be along the X axis, the Minor Radius along the Y axis.
• For primitives with a Top Radius, this radius will be that along the X axis; the Y axis radius will be computed using the Major, Minor and Top Radii given.