[JW Lua] Endpoints offsets of slurs can't be changed ... with a small typo update

Jan Angermüller jan at angermueller.com
Sun Jul 20 17:13:36 CEST 2014


A little typo update:
in the text I wrote leftseg/rightseg:SetControlPoint1OffsetX, but it 
should of course be
leftseg/rightseg:SetEndpointOffsetX as I had written correctly in the 
function code below.
So it's about changing EndpointOffsets of the shape segments and 
CtrlPointOffsets of the ctrlpointadjust.
Jan

Jari,

there may be a bug in JW Lua with changing endpoints of slur smartshapes.
Probably it has to do with FCSmartShapeSegment:SetCustomOffset().

This is what happens:
When I have a smartshape slur with its original endpoint and control 
point offsets
(not custom-defined, but just the way Finale created the slur originally 
- see image 1 in screenshot)
Then in JW Lua I create the ctrlpoint and left/right segments of the 
smartshape slur
and change their offsets  (i.e. leftseg:*SetEndpointOffsetX*(...), 
rightseg:*SetEndpointOffsetX*(..),
ctrlpoint:SetControlPoint1OffsetX(...) etc.)
Then I add:

ctrlpoint:SetCustomShaped(true)
leftseg:SetCustomOffset(false)  -- i.e. not rightside
rightseg:SetCustomOffset(true) -- i.e. rightside
smartshape:Save()

The result is a slur with new controlpoints,
but not with new leftseg/rightseg endpoints (see image 2 in the screenshot).

Then in comparison I do the following:
I go back to the original slur and change one of the endpoints (left or 
right)
by dragging it manually. So Finale internally sets the shape to "custom 
offset=true".
Then I remove the lines   leftseg:SetCustomOffset(false) and 
rightseg:SetCustomOffset(true)
from the code and run the same function again.
Now the results are correct: both ctrlpoint and leftseg/rightseg 
endpoints have changed
according to the new values (see image 3 in screenshot).
So I guess there is a problem with the FCSmartShapeSegment:SetCustomOffset
function.

Below you find the function to test.

Jan


local marks = finale.FCSmartShapeMeasureMarks()
marks:LoadAllForRegion(finenv.Region(), true)
for mark in each(marks) do
     local smartshape = mark:CreateSmartShape()
     if (smartshape ~= nil) and smartshape:IsSlur() then
         local leftseg=smartshape:GetTerminateSegmentLeft()
         local rightseg=smartshape:GetTerminateSegmentRight()
         local ctrlpoint=smartshape:GetCtrlPointAdjust()

         ctrlpoint:SetCustomShaped(true)
         leftseg:SetCustomOffset(false) --i.e. left-side 
adjustment         --2nd time remove this line of code
         rightseg:SetCustomOffset(false) --i.e. right-side adjustment   
--2nd time remove this line of code

         ctrlpoint:SetControlPoint1OffsetX(0)
         ctrlpoint:SetControlPoint1OffsetY(-100)
         ctrlpoint:SetControlPoint2OffsetX(0)
         ctrlpoint:SetControlPoint2OffsetY(-100)

         leftseg:SetEndpointOffsetX(50)
         leftseg:SetEndpointOffsetY(-50)
         rightseg:SetEndpointOffsetX(50)
         rightseg:SetEndpointOffsetY(-50)

         smartshape:Save()
     end
end



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