graPHIGS Programming Interface: Subroutine Reference

The graPHIGS Programming Interface : Subroutine Reference

GPVR - Set View Reference Point

GPVR (point)

Purpose

Use GPVR to set the View Reference Point in the USL (Utility State List) to the value specified.

When the Compute View Matrix (GPCVMT) subroutine is called, this point serves as the origin of the Viewing Coordinate (VC) system and is specified in World Coordinates (WC) For more information on the Viewing Coordinate system, see The graPHIGS Programming Interface: Understanding Concepts

Parameters

point -- specified by user, 3 short floating-point numbers (WC)

View reference point.

Error Codes

None

Related Subroutines

None

RCP code

201331201 (X'0C001201')