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DCL:GRPH2:UWPACK: Grid Point Information Handling Routines: Explanation of Subroutines

11.2.3 UWQGXZ/UWQGYZ

1.

Function

Inquires whether or not grid points are defined.

2.

Call

CALL UWQGXZ(LSETX)
CALL UWQGYZ(LSETY)

3.

Explanation of Parameters

LSETX, LSETY

(L)

Inquires whether or nor grid points are defined. A logical variable. If defined, then returns .TRUE., if not defined, .FALSE..

4.

Notes

(a)

To make the current grid point ineffective, 

CALL UWSGXZ(.FALSE.)
CALL UWSGYZ(.FALSE.)

and the grid points are considered to be not defined.