[JW Lua] Hairpins

[Robert Patterson]

The endpoints used for FCSmartShapeSegment:EndpointOffsetX are EVPUs.
(Graphical units, not metric units.) However, you may be running into
issues with horizontal stretching due to the spacing. A safer approach
would probably be to update the MeasurePos to be the full duration of the
measure, *then* apply the EVPU offset.

On Fri, Dec 25, 2020 at 5:48 AM Martin Marris <mmarris at notecraft.com> wrote:

> Just a quick note that I've disabled the hairpin code for the moment.
>
> I had forgotten the obvious point that the units used for the offsets are
> duration units, not absolute units. What this means is that a brute-force
> approach that subtracts a fixed number of units from the Y offset of the
> end-point will yield a horizontal shift that depends on the time signature.
> I was just working on a piece that is in 3/8 and it was pulling back the
> endpoint far too much. (The original code was only tested on a piece that
> was in 4/4.)
>
> So the offset needs to be calculated contextually, depending on the time
> signature, which should be easy to implement. Unless one of you thinks my
> reasoning is off-base.
>
> Merry Christmas.
>
> Martin
>
>
>
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