this
Pointer to the Moc to be modified.
cmode
Indicates how
the Moc and data are to be combined. Any of the following values may be supplied:

AST__AND: The modified Moc is the intersection of the original Moc and the
data.

AST__OR: The modified Moc is the union of the original Moc and the data.

AST__XOR: The modified Moc is the exclusive disjunction of the original Moc and the
data.
negate
If nonzero, the cells added to the Moc will be those included in
the supplied data array. If zero, the cells added to the Moc will be those not included
in the supplied data array.
maxorder
The maximum HEALPix order to use. If a
negative value is supplied, the maximum order will be determined by searching the data
array (this will take extra time). In either case, if a value has already been set
for the
MaxOrder attribute in the Moc, then the attribute value is used in
preference to the value supplied for this parameter. Any HEALPix cells in the data
array that refer to an order greater than
"
maxorder
"
are ignored.
len
The
length of the supplied array (i.e. the number of 4 or 8 byte integer values it
contains). Note, this class only supports binary MOCs with lengths that can
be represented in a 4 byte signed integer.
nbyte
The number of bytes in
each integer value stored in the supplied array. Must be 4 or 8.
data
Pointer to the data array holding a description of a MOC in the form used by
FITS binary tables. See the IVOA MOC recommendation for details. The values in
this array are signed integers, each with the number of bytes specified by
parameter "
nbyte"
. The number of bytes in this array should be at least "
len$\ast $nbyte"
.