RE: Large square brackets for modern notation

[Nick Payne]

As an aside, jpedal as included with LilypondTool renders these brackets
incorrectly if you use mitred corners. If I have

#(define lbracket "0.25 setlinewidth 
        0 setlinejoin 
        0 setlinecap 
        0.5 -2 moveto
        -2 0 rlineto
        0 8.8 rlineto 
        2 0 rlineto 
        stroke")
#(define rbracket "0.25 setlinewidth 
        0 setlinejoin 
        0 setlinecap 
        0.5 -2 moveto
        2 0 rlineto
        0 8.8 rlineto 
        -2 0 rlineto 
        stroke")

\relative c' {
        c4-\markup { \postscript #lbracket } c c c-\markup { \postscript
#rbracket }
}

jPedal shows the brackets as having bevelled corners rather than mitred
corners. If I load the PDF into Adobe reader, the corners correctly display
as mitred.

Nick

> -----Original Message-----
> From: Mark Polesky [mailto:address@hidden
> Sent: Sunday, 21 June 2009 10:37 AM
> To: Francisco Vila
> Cc: Nick Payne; address@hidden; Qian Li
> Subject: Re: Large square brackets for modern notation
> 
> 
> Francisco Vila wrote:
> 
> > 2009/6/20 Mark Polesky :
> > > If the line joints are round here, that's luck, and it won't
> > > always work. You need to explicitly state setlinejoin to 1:
> >
> > Well, you're right, but it's also true that with independent segments
> > no line joints were possible at all.
> 
> True, the problem is when the wrong solution appears to work in a
> particular situation.
> 
> Without testing, I'm pretty sure that
> 
> 1 setlinecap
> 0 0 moveto 0 1 lineto stroke
> 0 1 moveto 1 1 lineto stroke
> 1 1 moveto 1 0 lineto stroke
> 1 0 moveto 0 0 lineto stroke
> 
> would produce the same result as
> 
> 1 setlinejoin
> 0 0 1 1 rectstroke
> 
> and
> 
> 2 setlinecap
> 0 0 moveto 0 1 lineto stroke
> 0 1 moveto 1 1 lineto stroke
> 1 1 moveto 1 0 lineto stroke
> 1 0 moveto 0 0 lineto stroke
> 
> would produce the same result as
> 
> 0 setlinejoin
> 0 0 1 1 rectstroke
> 
> Easy for beginners to get tricked sometimes.
> Hope this helps.
> - Mark
> 
> 
> 
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