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Direction operators in event-function
From: |
Urs Liska |
Subject: |
Direction operators in event-function |
Date: |
Sun, 21 Oct 2018 16:21:33 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
I'm scratching my head thanks to some weird behaviour (at least it
looks like that for me). In a simple event-function any explicit
direction operator used when calling the event will be propagated to the
created objects:
\version "2.19.82"
propagate-direction =
#(define-event-function (text)(markup?)
#{
-\markup #text
#})
{
g'1 ^\propagate-direction "Up"
}
When I use explicit tweaks I can specify directions for multiple
elements as well (but independently from any direction operators):
propagate-direction =
#(define-event-function (text)(markup?)
#{
-\tweak direction #UP
-(
-\tweak direction #UP
-\markup #text
#})
{
g'1 \propagate-direction "Up" g' )
}
But if I simply create two elements in the event-function the explicit
direction operator takes no effect:
propagate-direction =
#(define-event-function (text)(markup?)
#{
-(
-\markup #text
#})
{
g'1 ^\propagate-direction "Up" g' )
}
(here both the slur and the text are printed below the staff.
Why is that?
And more importantly: how can I achieve the goal of creating more than
one element in an event-function and still have the explicit directions
from the calling code be applied?
And why can't I access the explicit direction operator from within the
event-function? I understand that the *generated* direction isn't
accessible at that moment, but an explicit setting should be known at
that point, isn't it?
Thanks
Urs
- Direction operators in event-function,
Urs Liska <=
Re: Direction operators in event-function, David Kastrup, 2018/10/29