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SUBROUTINE INQPA (PARRAY) C$ (Inquire Viewing Parameters) C$ Return the current values of all viewing parameters in C$ PARRAY(*), as follows: C$ C$ 1-3.....View Reference Point in world coordinates. C$ 4-6.....View Plane Normal in world coordinates. C$ 7.......View Plane Distance in world coordinates. C$ 8.......Front Distance in world coordinates. C$ 9.......Back Distance in world coordinates. C$ 10......Projection type (0.0 = parallel, else perspective). C$ 11-13...Projective point in world coordinates relative to C$ View Reference Point. C$ 14-17...Window boundaries in world coordinates. C$ 18-20...View Up Vector in world coordinates relative to C$ View Reference Point. C$ 21-26...Viewport boundaries in NDC space. C$ C$ Users should normally not enter values in PARRAY(*) C$ themselves. The purpose of this routine is primarily for C$ saving viewing parameters when a temporary change in a few C$ of them is required locally. The original values can then C$ be restored by a call to SETPA. C$ (01-APR-82)