Solid of Revolution (SREV )

This primitive is generated by rotating a user-defined 2D shape, known as a Loop (SLOO), whose outline is defined by a set of member elements called Vertices (SVER), through an angle about an axis. The swept angle must be in the range -360 to +360 degrees, 360 degrees giving a solid which is axially symmetrical.

In addition to the attributes defining its position, each SVER can have a radius which applies a convex or concave fillet to the loop at that point.

SREV has particular attributes as follows:

• PX, PY, PZ - coordinates of origin of SLOO

• PAAX, - directions of axes of SLOO

• PBAX - (these will define coordinate system for SVERs)

• PANGLE - angle through which 2D SLOO is rotated to form 3D SREV

SLOO has no special attributes.

SVER has particular attributes as follows:

• PX, PY - coordinates of vertex

• PRAD - fillet radius of loop at vertex position

  

  Solid of Revolution Catalog Primitive