A ZoomMap is a Mapping which "
zooms"
a set of points about the origin by
multiplying all coordinate values by the same scale factor (the inverse
transformation is performed by dividing by this scale factor).
’
s Zoom attribute. It may be positive or
negative, but should not be zero. "
printf"
format specifiers identified by "
%"
symbols in the
normal way. "
options"
string contains "
%"
format specifiers,
then an optional list of additional arguments may follow it in order to supply
values to be substituted for these specifiers. The rules for supplying these are
identical to those for the astSet function (and for the C "
printf"
function). A null Object pointer (AST__NULL) will be returned if this function is invoked with the AST error status set, or if it should fail for any reason.
"
int
status"
.