[Scribus] ISO page sizes
Fri Feb 4 19:59:19 CET 2005
I don't know how much work is involved here, but I agree with this. The
same applies to any "standard" format for which any round trip into
other units should always give the same result back. I already filed a
note in a (somewhat) related issue. Scribus has a different precision
depending upon the unit used and I think this needs attention.
Here is the note:
> There is still an accuracy issue when transposing from one unit to
> When in the Paragraph Style dialog, here is how precise Scribus is
for each unit:
> 0.0000 in
> 0.0 pt
> 0.0 mm
> 0.0 p
> Accurate transposition from one unit to another is, thus, difficult.
> BTW, Scribus is more precise when in the Properties palette:
> 0.0000 in
> 0.00 pt
> 0.000 mm
> 0.00 p
But is this possible at all?
Maybe the best way to achieve this is having Scribus remember what was
set on the first place. So if we change the unit for any reason, when we
get back, we still have, for instance, the *real* A4 and not a converted
BTW, Scribus transposes Letter format correctly into mm (215.9 mm x
279.4 mm), as does Quark.
A4 is 210 mm X 297 mm in Quark.
A4 is 209.903 mm X 297.039 mm in Scribus, untransposed (default unit set
to mm and A4)
Peter Nermander a ?crit :
>>We should make the program usable by people who aren't professional DTP people
>>and know only the meter and its power of 10 multiples as units of length. See
>>http://www.cl.cam.ac.uk/~mgk25/metric-typo/ for more details.
> I really don't care what unit Scribus uses internally, but if I set a paper size to A4 I would want it to be A4. Not "almost A4". Since the A series papers are defined in mm I think Scribus should use the size in mm, not use the size in points and then convert to mm. The conversion should be from the user's set values into Scribus internal units, not the other way.
> I mean, If you set a page width to 10 inches, would you really like it to be changed to 9.9987 inches just because the program doesn't internally use inches?
> Even if Scribus uses points interally, does it use integer points? No fractions? Using 1/10 or 1/100 pt as resolution would make rounding errors neglible.
> 210 mm (A4 width) makes 595.3 points (rounded). 595.3 points is 210.0 mm (rounded).
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