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VIEWPOINT Command

A Dialog to Define ViewPoints is invoked in the Projection Menu.

VIewpoint

Images are drawn as if the eye is at the viewpoint looking towards the spatial window. Up to 10 viewpoints may be defined; the current one is used.

User RVIEW to retrieve previously defined viewpoints. Use VUANG to set the viewpoint by angle.

VIewpoint

When no arguments are present, the current and defined viewpoints are listed.

VIewpoint VX VY VZ

Set current viewpoint at location (VX, VY, VZ)

VIewpoint N VX VY VZ

Set viewpoint N at location (VX, VY, VZ) and make it the current viewpoint. 1 ( N ( 10

VIewpoint [ N ] { Down | Up | Left Right } [ T ]

Rotate Viewpoint N (or current viewpoint if N omitted) T degrees in specified direction. T defaults to 5 degrees unless set by VIEWPOINT ANGLE.

VIewpoint N VX VY VZ { DOWN | UP | LEFT | RIGHT } [ T ]

Obsolete form of the command

VIewpoint Angle A

Set default rotation angle to A degrees. When line-drawing with TRACE ON or when ray-tracing, the viewpoint cannot be located on a surface or in a non-transparent cell. Use RVIEWPOINT to retrieve previously defined viewpoints. Use VUANG to set the viewpoint by angle .

When ray tracing or line drawing with TRACE ON, the viewpoint cannot be located on a surface or in a non-transparent cell. Ray tracing and line drawing with TRACE ON also require the viewpoint to be in a defined (i.e., contained in a cell) region of space. This requirement can be ignored for ray tracing in solid body geometry mode by the command

VIewpoint Undefined Ok

To return to the orignal state, use

VIewpoint Undefined Notok