🚀 go-pugleaf

c:\telix\upload\image.txt
ay I have an image operation like this:



/picstr 8 string def

278 200 4 [ 278 0 0 -200 0 200 ]

{ currentfile picstr readhexstring pop } image

. . . data . . .



Everything works fine.  But say I do this:



/picstr 8 string def

278 200 4 [ 278 0 0 -200 0 200 ]

{ currentfile picstr readhexstring pop

/place 0 def

{ picstr place 3 -1 roll put /place place 1 add def } forall }

picstr image

. . . data . . .



Or this:



/picstr 1 string def

278 200 4 [ 278 0 0 -200 0 200 ]

{ currentfile picstr readhexstring pop

0 get picstr 0 3 -1 roll put picstr } image

. . . data . . .



As far as I can tell, these changes should do nothing; but, when they are

added, the image is printed but *shifted* -- that is, if a line was, say,



AAAAAAAABBBBBBBBCCCCCCCC



it is now



AABBBBBBBBCCCCCCCCAAAAAA



I do not understand.  Any thoughts would be appreciated.  -- Steve