Paul <p...@paulwmorris.com> writes:

> On 10/01/2016 01:02 PM, Malte Meyn wrote:
>
>> Am 01.10.2016 um 18:39 schrieb Paul:
>>> Thanks for the bug report.  I posted a comment on the issue here:
>>> https://sourceforge.net/p/testlilyissues/issues/4979/#b111
>>
>> This comment says:
>>
>>> When two ledger lines are at the same vertical position, in the
>>> same note column, (as I assume is probably the case with a pitched
>>> trill note?) we apparently can't just assume that they overlap
>>> horizontally (as is most often the case with chords). We will have
>>> to check whether they overlap horizontally or not before merging
>>> them.
>>
>> There are other cases where notes in the same note column are
>> horizontally far away from each other, see
>> f. e. http://lsr.di.unimi.it/LSR/Item?id=505 so this is not a
>> pitchedTrill-only problem ;)
>
> Indeed, that's a good example for this, and if we check whether ledger
> lines overlap horizontally or not before merging them, then we'll have
> solved all these cases.  :-)  Adding some of these cases to the
> regression tests will also help.

Are they even guaranteed to have the same thickness?  If not, merging
will be quite a chore.

-- 
David Kastrup

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