bad number formatting in svg path output
There may be a bug in scm/output-svg.scm, in the function that processes stencil expressions created with "(ly:create-stencil '(path ...))". If a coordinate in the path expression happens to be the result of a Scheme computation that is a fractional rational number, it will be written into the SVG output literally as a Scheme fraction (e.g. "3/2"). SVG does not understand this format. Test snippet: \once \override NoteHead.stencil = #(ly:make-stencil `(path 0.2 '(moveto 0 0 rlineto 0 ,(/ 3 2)) 'round 'round #f) '(-0.1 . 0.1)'(0 . 1.5)) c4 This stencil will not display in SVG output, though it does display fine in PS and PDF. A possible fix may be to change line 86 of /scm/output-svg.scm to force output as a decimal number. Change from: (cons (format #f "~S ~S" (car lst) (- (cadr lst))) to: (cons (ly:format "~4f ~4f" (car lst) (- (cadr lst))) Lukas -- View this message in context: http://lilypond.1069038.n5.nabble.com/bad-number-formatting-in-svg-path-output-tp160185.html Sent from the Bugs mailing list archive at Nabble.com. ___ bug-lilypond mailing list bug-lilypond@gnu.org https://lists.gnu.org/mailman/listinfo/bug-lilypond
Re: bad number formatting in svg path output
On Thu, Mar 6, 2014 at 1:50 PM, lpietsch wrote: > There may be a bug in scm/output-svg.scm, in the function that processes > stencil expressions created with "(ly:create-stencil '(path ...))". If a > coordinate in the path expression happens to be the result of a Scheme > computation that is a fractional rational number, it will be written into > the SVG output literally as a Scheme fraction (e.g. "3/2"). SVG does not > understand this format. > > Test snippet: > > \once \override NoteHead.stencil = >#(ly:make-stencil `(path 0.2 > '(moveto 0 0 > rlineto 0 ,(/ 3 2)) > 'round 'round #f) > '(-0.1 . 0.1)'(0 . 1.5)) > c4 > > This stencil will not display in SVG output, though it does display fine in > PS and PDF. > > A possible fix may be to change line 86 of /scm/output-svg.scm to force > output as a decimal number. Change from: > > (cons (format #f "~S ~S" (car lst) (- (cadr lst))) > > to: > > (cons (ly:format "~4f ~4f" (car lst) (- (cadr lst))) > > Lukas Greetings, Lukas - Thanks for the email. This has been submitted as Issue 3880 : https://code.google.com/p/lilypond/issues/detail?id=3880 Ralph ___ bug-lilypond mailing list bug-lilypond@gnu.org https://lists.gnu.org/mailman/listinfo/bug-lilypond
