Valentin Petzel <[email protected]> writes: > Hm, you’re right. But if you replace this by something directly drawn with > PostScript commands, you’ll see that Lilypond does not have any idea about > what’s there.
About what's *there*. Namely in images drawn by *user-written* PostScript code. > So I guess Lilypond is able to handle stencil it knows very well. And it knows by far most of them very well. > And yes, Skylines are a concept of Lilypond, but Lilypond does not > really „know” how the score looks. Lilypond thinks in objects that > physically bounded by a skyline box. As you have shown, Lilypond is > able to refine this into polygons for the standard symbols (for which > we can quite easily find ways to get this actual information, as these > things are eighter glyphs or lines). > > But this still does not solve the Problem that Lilypond is not > actually able to „see” where there is black stuff in an arbitrary > stencil. Is there a particular purpose in shifting the goalposts until we have an insoluble problem unrelated to what Harm is asking about? -- David Kastrup
