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Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/26/2015 5:27 PM (GMT -6)

I'm writing my first JW Lua script, to put double barlines at key- and time-signature changes.

allmeasures = finale.FCMeasures()
allmeasures:LoadAll()
lastmeasure = finale.FCMeasure()
for measure in each(allmeasures) do
    if measure.ItemNo > 1 then
        if not measure.TimeSignature:IsIdentical(lastmeasure.TimeSignature)
        or not measure.KeySignature:IsIdentical(lastmeasure.KeySignature)
        then
            lastmeasure.Barline = finale.BARLINE_DOUBLE
            lastmeasure:Save()
        end
    end
    lastmeasure = measure
end

It's getting the error

[string "allmeasures = finale.FCMeasures() ..."]:6: attempt to index field 'TimeSignature' (a userdata value)

What am I doing wrong?

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

Post Edited (Motet) : 3/26/2015 5:59:32 PM (GMT-5)

Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/26/2015 6:08 PM (GMT -6)

If I try this instead

if not measure.GetTimeSignature():IsIdentical(lastmeasure.TimeSignature)

I get "[string "allmeasures = finale.FCMeasures() ..."]:6: bad argument #1 to 'GetTimeSignature' (FCMeasure expected, got table)"

Does "each()" produce a table rather than a FCMeasure?

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

Jari Williamsson
Registered Member

Date Joined Dec 1998
Total Posts : 3246

Posted 3/27/2015 3:31 AM (GMT -6)

Your script was almost correct. each() indeed produces FCMeasure objects in your script.

TimeSignature is a property and should be preceeded with a '.'

GetTimeSignature() and IsIdentical() are method calls and should be preceeded with a ':'

This version should work:

local allmeasures = finale.FCMeasures()
allmeasures:LoadAll()
lastmeasure = finale.FCMeasure()
for measure in each(allmeasures) do
    if measure.ItemNo > 1 then
        if not measure.TimeSignature:IsIdentical(lastmeasure.TimeSignature)
        or not measure.KeySignature:IsIdentical(lastmeasure.KeySignature)
        then
            lastmeasure.Barline = finale.BARLINE_DOUBLE
            lastmeasure:Save()
        end
    end
    lastmeasure = measure
end

Jari Williamsson

Windows XP, Pentium 4
2.40 GHz, 4 GB RAM

www.finaletips.nu - The Finale Productivity Tips site

Post Edited (Jari Williamsson) : 3/27/2015 3:34:36 AM (GMT-5)

Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/27/2015 10:55 AM (GMT -6)

Except for the "local", that's what I had in my original posting, and I still get

[string "local allmeasures = finale.FCMeasures() ..."]:6: attempt to index field 'TimeSignature' (a userdata value).

I suspect I don't have the latest versions of everything. Will investigate.

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

Post Edited (Motet) : 3/27/2015 11:00:49 AM (GMT-5)

Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/27/2015 12:00 PM (GMT -6)

D-oh! I just needed the latest JW Lua. Since JW Plug-in Manager doesn't manage it I had never updated it. Thanks for your help and sorry for the false alarm. I am excited to be learning this and predict great things to be gained.

Is there access to the displayed time signature, by the way? Since I rarely use that, it's no big deal if not, but ideally these double barlines are based on what the player sees, not the underlying Finale time signatures. Conceivably, one could have a split measure or something.

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

Post Edited (Motet) : 3/27/2015 12:04:04 PM (GMT-5)

Jari Williamsson
Registered Member

Date Joined Dec 1998
Total Posts : 3246

Posted 3/27/2015 5:48 PM (GMT -6)

Motet said...
Is there access to the displayed time signature, by the way? Since I rarely use that, it's no big deal if not, but ideally these double barlines are based on what the player sees, not the underlying Finale time signatures. Conceivably, one could have a split measure or something.

These FCMeasure properties should work:
FCMeasure.UseTimeSigForDisplay (boolean)
FCMeasure.TimeSignatureForDisplay (FCTimeSignature object)

Jari Williamsson

Windows XP, Pentium 4
2.40 GHz, 4 GB RAM

www.finaletips.nu - The Finale Productivity Tips site

Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/27/2015 8:07 PM (GMT -6)

Thanks, Jari!

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/29/2015 4:33 PM (GMT -6)

Jari,

Looks like FCNote:GetString() doesn't observe "simplify key" in the transposition. For example, in the concert key of F# major, the Bb Clarinet's key signature would be Ab major, and GetString() returns "E#" for a written F. Any work-around?

(If you would prefer I take my questions to the mailing list, I'm happy to do so.)

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

Charles Lawrence
Registered Member

Date Joined Dec 2009
Total Posts : 3638

Posted 3/30/2015 10:05 AM (GMT -6)

Motet said...

(If you would prefer I take my questions to the mailing list, I'm happy to do so.)

That would be better, as it is the de facto clearing house for all things JW Lua related, not this forum. Besides, there are list members who do not look at this forum.

"Anything is possible if you don't know what you are talking about!"

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Microsoft Windows 8.1 Professional with Media Center x64 Edition, (06.03.9600.00)
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Motet
Isorhythmic

Date Joined Dec 2002
Total Posts : 12849

Posted 3/30/2015 12:17 PM (GMT -6)

I have done so.

Finale 2011b, 2005, TGTools
Windows 7, MIDI input
Finale Transposition Chart

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