laser-lovers@uw-beaver (08/07/85)
From: Brian Reid <reid@Glacier> [[Editor's note: I found this somewhat old note sitting in the incoming laser-lovers queue. Apparently I missed it when it came in. Sorry for the delay. --Rick ]] %! % Here is a second version of a PostScript program that maps imagemask % pixels exactly 1:1 onto the marking device. This version works by % adjusting the current transformation (eliminating its translation % component) rather than by using identity matrices. /zstr 300 8 div 1 add cvi string def % define a 300-bit string buffer /c matrix def % scratch matrix storage 2 dup scale 30 rotate % create pathological transformation 120 150 translate 0 0 moveto % go to a random place on the page /Courier findfont 7 scalefont setfont % put down a label (A 300-by-300 raster image: ) show currentpoint translate % move the origin /imageproc { zstr } def 300 300 % print a 1-inch square false % make 0 bits be black c currentmatrix % grab current transformation dup 4 [0 0] putinterval % remove translation part from it imageproc % our null imaging proc imagemask % generate the image showpage