Hi Pierre,
just looking shortly at your files this seems really great!
Do you think you'd ever be able to write a blog post tutorial about this
stuff?
And one thing I've been wondering for a while: Would it be possible to
expand on this approach to create slurs with more than four
control-points? I.e. more arbitrarily shaped curves?
Urs
Am 15.04.2015 um 22:13 schrieb Pierre Perol-Schneider:
Hi List,
Tonight I'd like to share with you some tools I'm experimenting for a
couple of weeks that can ease to make drawings with the 'path' command.
Almost everyone here uses postscript images when a new glyph is
needed. But it may causes some issues (no svg, some overrides are not
possible e.g. color...)
So why not using 'path'?
For sure, when I first put my eyes here (scroll down until
'samplePath'):
http://lilypond.org/doc/v2.18/Documentation/notation/graphic.fr.html
with its weird fight glove glyph it looked a little mysterious. But
after many trials and with some self-made tools to help me finding the
right coordinates it revealed that it's a pretty powerful toy.
And a recent conversation made me think that maybe I could re-think
and enhanced those tools and shared them with you. So, here we go!
The idea is to use LP and your favorite editor as a cad.
So please find herewith "graphPaper.ily" and an unfinished example to
show you how my glyphs are constructed.
Basically, all you need is knowing how to find coordinates on a graph,
combining an original glyph behind the graph paper and follow the
lines with the specific path commands: moveto, lineto, curveto,
closepath (note that I only use absolute coordinates).
"graphPaper.ily" includes a graph paper ("1" equivalent to the
distance between 2 staff lines) and ready to use tangents to help you
to choose the right Bézier coordinates.
I also put lots of comments in the example. Please feel free to ask if
anythings' unclear or badly explained.
Waiting for your comments,
Cheers,
Pierre
PS. Recent path examples added to the LSR:
- http://lsr.di.unimi.it/LSR/Item?id=991
- http://lsr.di.unimi.it/LSR/Item?id=989
- http://lsr.di.unimi.it/LSR/Item?id=988
- http://lsr.di.unimi.it/LSR/Item?id=987
- http://lsr.di.unimi.it/LSR/Item?id=986
- http://lsr.di.unimi.it/LSR/Item?id=984
- http://lsr.di.unimi.it/LSR/Item?id=982 (with absolute coordinates,
LP has already one with relatives')
- http://lsr.di.unimi.it/LSR/Item?id=973 (pseudo stems)
- http://lsr.di.unimi.it/LSR/Item?id=904
- http://lsr.di.unimi.it/LSR/Item?id=900
- http://lsr.di.unimi.it/LSR/Item?id=890
If you're still interested after this toooo-long list, Paul's specific
snippet are very helpful too:
- http://lsr.di.unimi.it/LSR/Item?id=891
- http://lsr.di.unimi.it/LSR/Item?id=623
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