[libreoffice-users] anchoring frame to character - problems positioning

I've been banging my head against this one off and on for quite a while, 
and either I'm totally misunderstanding what's supposed to happen, or 
there's a problem in LO. I'd appreciate advice please.

The goal is to print music lyrics with chord (text) appropriately 
aligned above the lyrics. The ultimate goal is to create the .odt 
document programmatically: I'm most of the way there, but the way 
positioning works in conjunction with 'anchor to character' has me baffled.

I'm using a frame to hold the chord text, and trying to attach the frame 
to a given character below in the lyric line, using 'anchor to 
character'. Horizontal position is no bother at all - with the text 
centred in the frame, and the frame centred on the lyrics character, 
things look good.

However, vertical positioning is another matter. It's not at all clear 
what 'bottom', 'top', 'from bottom' (etc) are supposed to do (the help 
file is lamentably lacking here). I had supposed that "from bottom" 
might allow the distance from the bottom of the frame to some reference 
point on the character to be specified, but as I've experimented I've 
found little logical relationship. Indeed the character-to-frame 
distance can vary with paragraph line spacing even when apparently 
nominally "locked" to the character -- not at all what I expected, nor 
what I need! What actually happens appears so ill-determined, it's not 
even easy to describe.

So, to cut to the real question: how do I "lock" a frame to float just 
above a given character in some text, and keep the same relative 
position as that character moves and text line spacing changes?

Or have I missed a better (easier!) way of achieving my goal?


I hope that makes some sort of sense!

Thanks!



(Addendum - the GUI only allows up to 200% proportional line spacing in 
a paragraph style which isn't enough for my purpose. A quick tweak to 
the styles.xml file shows this is purely a gui limitation, and that the 
basic LO rendering seems to deal with arbitrarily large ratios - I tried 
up to 500%. Any particular reason for the GUI's low limit??)


--
Mike Scott (unet2 <at> [deletethis] scottsonline.org.uk)
Harlow Essex England

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