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- < >< >1 currenttransfer exec 0 eq{exch pop{1 exch sub}}{pop{}}ifelse settransfer
- /patspot {1 add 4 mul cvi exch 1 add 4 mul cvi exch patstr exch get exch 7 exch sub 1 exch bitshift and 0 ne{1}{0}ifelse}bind def
- /setpat {/patstr exch def 9.375 1 0 dtransform exch atan /patspot load systemdict begin setscreen end}bind def
- setpat
-