Joseph Berkovitz wrote:
> TIME SIGNATURES
>> >
>> >For the handwritten fonts with protrusions you mention, I would suggest that the digits are supposed to be primarily numerators (so they are positioned still on the 4th line), and the additional metadata file stores the value for the proper leading (expressed in staff spaces).
> I am planning for the metadata file to provide enough information on t/s digits that the current baseline approach (actually, pretty much any baseline approach) would be adequate. I don't see any way to dodge the need for additional metadata if we are to allow arbitrary-height digits. I would expect this data to include:
>
> - recommended baseline placement for numerator digits relative to staff center line
> - recommended baseline placement for denominator digits relative to staff center line
With my suggestion, there would be just one value to store in the
metadata file (the vertical offset of denominator digits), assuming that
the entire time signature is always to be centred to the middle of the
staff.
>> >I am tempted to suggest, that perhaps C and ¢ should be positioned so, that they are placed correctly if font baseline is aligned to the centre of 4th line.
> Under the new approach to clef-like symbols (which these are, in a layout sense), such symbols should be centered on the font baseline since by default they "apply" to the center line of a staff. They are not t/s digits.
I just think about drawing time signatures by apps (perhaps it is easier
to draw all the time signatures using the same position of the text
object). There is also an issue with alla breve symbol mixed with
"fractions", like for alternating time signatures, and with parentheses,
e.g. ¢ (4/2). But I agree that they should be centred on the font baseline.
--
Emil Wojtacki
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