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SUBROUTINE CONYC (Z1,ZE,Z2, MX,MY, NX,NY, PL2) C$ (Y Crosshatching) C$ Mark off the region of a plane in which the array stored C$ function lies within a selected interval. Vertical lines C$ are drawn whose position corresponds to the array points, C$ and whose extent is determined by linear interpolation. C$ The arguments are: C$ C$ (MX,MY).....Actual declared dimensions of ZE(*,*) C$ ZE(NX,NY)...Data array C$ (Z1,Z2).....Interval to be marked C$ PL2.........2-D pen movement subroutine, perhaps PL2CA C$ C$ (04-FEB-82)