Re: overhead projection of lilypond scores

[Jonathan Kulp]

It's not hard to create a .png file with transparent background from 
lilypond source, and with this bit of scheme Trevor linked to you can 
easily make all the objects on the page yellow.  If you can merge the 
transparent-background music image with a blank blue image, then you 
will have what you want.  I imagine it's not hard to do with Gimp if you 
have some basic skills. (Or maybe paint the wall blue where you want to 
project it!?! ;-) ).  The lily2image script that Patrick Horgan and I 
wrote is what I use for making png images with transparent backgrounds. 
 It's posted here:

http://www.mail-archive.com/lilypond-user@gnu.org/msg40940.html
I've attached an image created with the script and using the scheme 
Trevor mentioned to make everything yellow.

Jon

Trevor Daniels wrote:
Gerry

It's possible, but not trivial.

This snippet shows how to color the foreground of a score:

http://lsr.dsi.unimi.it/LSR/Item?id=443

and this -user mail which I posted shows a very messy way of coloring 
the background:

http://lists.gnu.org/archive/html/lilypond-user/2008-09/msg00083.html

No one came up with a better way :(

HTH

----- Original Message ----- From: "Gerry Prosser" <[EMAIL PROTECTED]>
To: <lilypond-user@gnu.org>
Sent: Monday, October 13, 2008 6:01 PM
Subject: overhead projection of lilypond scores


when teaching a congregation a new worship song, it would be rather 
nice to project the melody line onto the screen as well as the words. 
But black-on-white is a projection disaster. It really needs to be 
yellow staff/text on a blue background. And probably a thicker text 
font than times new roman.  Is this achievable, please ?


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Jonathan Kulp
http://www.jonathankulp.com
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