On 04/29/2015 03:03 PM, Kieren MacMillan wrote:
Hi Francisco,To achieve a whiteout that is useful for music, I think a thick default 'middle' stroke in white on a lower layer would work. See example.YES! This is exactly the kind of thing I’m hoping for.
+1.
Do you think this “function” (bad choice of words here, I know) could be made to handle arbitrary [music] grobs, or would one always have to manually work through all 4 (?) steps of the process for each grob?
I guess Francisco's example was handmade in Inkscape or similar software, but it should be possible to automize it. AFAIK, all output from Lilypond is laid out in Postscript first, which offers support for these operations (at least for text) - see the attached example and, e.g., the following page.
http://paulbourke.net/dataformats/postscript/ The Postscript code for this is as follows: %!PS-Adobe-3.0 /Times-Bold findfont 30 scalefont setfont 100 400 moveto (Hello World!) true charpath 5 setlinewidth 0.5 setgray stroke 100 400 moveto (Hello World!) 0 setgray show showpageThe main idea is to typeset the object/path/glyph/grob, you name it, twice: once in white, non-filled, with thick stroke, and once in the actual color. IIUC, this could be achieved by some stencil which is on top of the PS-output-stencil. Unfortunately, I could not make it work with glyphshow, which is what is used for the embedded fonts (at least by Lilypond)...
Best, Alexander
hello.ps
Description: PostScript document
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