Text on path: How can I calculate the text length?

Hi
I have a text on path (spline item). Now I need the length of this text and the length of the spline item.
I try to calculate the text length using IWaxLine::GetWidth(), but this is always 0.
- How can I calculate the length of this text?
- How can I calculate the length of the spline item?
Thanks
Hans

It would be interesting if you could describe the purpose of your "length", but I don't have an answer anyway. Would the bounding box be sufficient?
Considering that TOP may be combined with arbitrary spline paths, this could become an exercise in higher math. I haven't yet encountered a function that returns the mathematical length of such a spline.
Otherwise it could be solved if you iterate and sum up the relevant points of the bounding box (ascender, descender, baseline?) of individual glyphs.
Be warned that the whole TOP looks alien, as if it were a transplant from a different program. Experience also shows that documented and actually used interfaces / commands are completely different animals ...
Dirk

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--{code}
--[SCRIPT write_vertically]
Enregistrer le script en tant que Script : write_vertically.scpt
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the clipboard as text
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--{code}
--[SCRIPT rotate_cell_contents]
Enregistrer le script en tant que Script : rotate_cell_contents.scpt
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L’Utilitaire AppleScript permet d’activer le Menu des scripts :
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aller dans le panneau “Général” du dialogue Préférences de l’Éditeur Applescript
puis cocher la case “Afficher le menu des scripts dans la barre des menus”.
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The Finder’s Help explains:
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2011/06/26 -- No longer use an auxiliary text box. Now keep the text attributes.
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                              tell sheet 1 to click button 2
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          tell application "Numbers" to tell document dName to tell sheet sName to tell table tName
-- just reset the focus on the table
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Paste in the cell *)
          my raccourci("Numbers", "v", "c")
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set { dName, sName, tName, rowNum1, colNum1, rowNum2, colNum2} to my get_SelParams()
tell application "Numbers" to tell document dName to tell sheet sName to tell table tName
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                                        error "Aucune feuille ne contient une table ayant au moins une cellule sélectionnée !"
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