Gives invisible stems point extents.

Gives invisible stems point extents.

[Keith, 2013-03-14 07:05:47]

So then the convention for an extent is
'(+inf.0 . -inf.0) is empty, but for skylines in the cross direction it is an
infinite wall;
'(0 . 0) is a point, but ignored for skylines;
'(-inf.0 . +inf.0) is an infinite wall all the time.

Could you filter out this effect on RhythmicStaves ?

My heavy-metal band uses a flame-shaped glyph for some Stems, and it needed zero
X-extent for some spacing reason.  While fixing another MIDI bug I had the
Midi_performer listen for Stems and send a message, if on channel 10, when it
sees a zero-width Stem, by convention.  That message fires the flamethrowers, so
if you push this change I have to remind the boys to avoid that part of the
stage in case the drummer has any beamed rests.

[mike7, 2013-03-14 10:28:08]

On 14 mars 2013, at 08:05, k-ohara5a5a@oco.net wrote:

> So then the convention for an extent is
> '(+inf.0 . -inf.0) is empty, but for skylines in the cross direction it
> is an infinite wall;
> '(0 . 0) is a point, but ignored for skylines;
> '(-inf.0 . +inf.0) is an infinite wall all the time.
> 
> Could you filter out this effect on RhythmicStaves ?
> 
> My heavy-metal band uses a flame-shaped glyph for some Stems, and it
> needed zero X-extent for some spacing reason.  While fixing another MIDI
> bug I had the Midi_performer listen for Stems and send a message, if on
> channel 10, when it sees a zero-width Stem, by convention.  That message
> fires the flamethrowers, so if you push this change I have to remind the
> boys to avoid that part of the stage in case the drummer has any beamed
> rests.
> 
> https://codereview.appspot.com/7762049/

New patch up that doesn't get in the way of your band!

Cheers,
MS