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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <pmset.h>
include <plio.h>
# PM_POINT -- Perform a rasterop operation on a single point in a line of a
# 2-dimensional plane of a mask. If the dimensionality of the mask exceeds 2,
# the pm_setplane() procedure should be called first to define the plane of
# the mask to be modified.
procedure pm_point (pl, x, y, rop)
pointer pl #I mask descriptor
int x #I pixel to be modified
int y #I line to be modified
int rop #I rasterop defining operation
errchk pl_getplane
include "pmio.com"
begin
if (PM_MAPXY(pl) == YES) {
call pl_getplane (pl, v1)
v1[1] = x; v1[2] = y
call imaplv (PM_REFIM(pl), v1, v2, PM_MAXDIM)
call pl_point (pl, v2[1], v2[2], rop)
} else
call pl_point (pl, x, y, rop)
end
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