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http://www.openoffice.org/issues/show_bug.cgi?id=113276
Issue #|113276
Summary|Math: Greek symbols and new OpenSymbol font
Component|Formula editor
Version|DEV300m83
Platform|All
URL|
OS/Version|All
Status|NEW
Status whiteboard|
Keywords|
Resolution|
Issue type|TASK
Priority|P3
Subcomponent|code
Assigned to|tl
Reported by|tl
------- Additional comments from t...@openoffice.org Tue Jul 20 09:50:16 +0000
2010 -------
==========================
Problem:
Previously (up to, and including OOo 3.2) a formula like:
%MU %PI " " nitalic {%MU %PI} " " italic {%MU %PI} newline
%eta %kappa " " nitalic {%eta %kappa} " " italic {%eta %kappa}
would have been rendered as in 'mathOSF_OOo3.2.png'.
Please notice that you can't get a straight %PI it is slanted or even
more slanted. :-( This however did not apply to %MU since the first
comes from the StarSymbol/OpenSymbol font and the latter actually from
TimesNewRoman since the old OpenSymbol font did only feature those
non-Latin-looking Greek characters. That of course was a bug of the old
font.
This problem (and others) are now fixed in the new OpenSymbol font that
will come with OOo 3.3.
Currently(!) with a developers build like DEV300_m84 the above formula
will be rendered as in 'mathOSF_OOo3.3.png'. You can easily see that
'italic' and 'nitalic' commands now have the proper effect on the
characters.
Also the non-altered charatcer (see first column) are defined as slanted
by default right now since that is visually the best equivalent to the
old look.
Now in every formula at least one of the sample cases
'%PI'
'nitalic PI' or
'italic PI'
will look different compared to OOo 3.2 if rendered anew in OOo 3.3!
(And it can't be fixed on import.) Also changing the default for Greek
symbols to straight will not solve this since then only one of the other
cases will turn out different.
==========================
Having asked the users on the UX discussion list they majority wants that the
Greek symbols (like %KAPPA, %kappa, ...) should not be slanted by default and
that for each of them there should be a additional symbols, prefixed with 'i'
(like %iKAPPA, %ikappa, ...) that are the slanted versions of the former ones.
Implementation wise the new italic versions (%iKAPPA, %ikappa, ...) should go
into a symbol set named iGreek. That should be done purely programmatically be
prefixing each symbol in the 'Greek' symbol set with 'i', setting it to 'italic'
and put them into the set 'iGreek'.
The advantage of this solution is that no additional translation is required and
thus consistency is guaranteed.
The 'iGreek' symbol set should be calculated once per office start only when
Math is used the first time.
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