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Re: Making Sudoku Puzzles Using PDF::API2

by danderson (Beadle)
on Feb 24, 2006 at 21:16 UTC ( #532674=note: print w/replies, xml ) Need Help??

in reply to Making Sudoku Puzzles Using PDF::API2

As has been pointed out, PDFs are based on postscript (PS). Postscript's line drawing functions (lineto, curveto etc) do "act like LOGO" in that the cursor moves; it surprises me that PDF line drawing functions have changed this.

Some excellent PS references are: The PS tutorial and cookbook:

The PS language reference manual:

And perhaps best of all, Bill Casselman's "Mathematical Illustrations," which isn't amazingly cheap but is available free online at
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