Hi Urs, Forgive me if saying something you know, but just confirming that PostScript user space coordinate units are 1/72 inch. This is close to one point, but there is no universally accepted definition of one point. Some conventions use 1/72.72 inches (!), for example.
The information confirming this is on p 183 of the 3rd edition Postscript manual (same as the one Karl quotes from). [That manual is freely downloadable from Adobe.] I don't know what 'bp' is, sorry, and I don't know what the size of a point ]\pt in LaTex is either. I don't know if lilypond transforms Postscript user space coordinates into device space coordinates or when it does that. I thought GS would handle that late on, closer to final imaging. Andrew On 2 March 2018 at 18:26, Urs Liska <li...@openlilylib.org> wrote: I think it *is* the smallest box, but truncated to integers. At least I > can't imagine a box that leaves full units empty. > From what I've seen so far I was confident that the numbers correspond to > what LilyPond sees as \pt, and also in LaTeX I have treated the numbers as > pt (as opposed to bp). >
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