default left/right page margins seem to be opposite of what they should be
In my case, the default page size is "Letter". In "Layout" -> "Page Settings...", the odd page margin left/right is "10.00mm" and "15.90mm" respectively. The even page margin left/right is "15.90mm" and "10.00mm".
However, this seems to be the opposite of what it should be. The binding (or hole punches) would generally be on the left edge of odd pages and the right edge of even pages, but the default values put the extra space on the wrong edge of the pages.
Unless I am misunderstanding something about the reasoning for the default values...
I am using MuseScore nightly 791625f on Kubuntu 14.04 64-bit.
Comments
You are of course right with assuming that if left and right margins are different, left magin on odd and right margin on even pages should be larger, but...
Seems this issue exists for Letter, but not A4: in A4 it is a 10mm margin either side, and irrespective of even/odd.
The additional 5.90mm are probably the result of Letter being wider than A4 by that amount.
The constructor for PageFormat initializes size to A4, left/right/top margins to 10mm, bottom margin to 20mm, two sided to true
See also #46371: default page margins not applied on creation of new score
BTW; I see the same issue even with A4, but to a much lesser extent, as the values used in the constructor apparently are off by 0.06mm. So I get 10.06mm right margin on odd and 10.06mm left margin on odd pages.
It is not necessarily true that, when left and right margins are different, the inner margin is the wider and the outer margin the thinner; in books designed with some care, it is usually true the opposite (this Wikipedia article provides some background).
Now, it is also true that scores tend to occupy all the available page real estate and reserve (almost) only the margin strictly needed, particularly performing editions which did generalize on smaller page sizes (usually A4; or 8.5" x 11" for the 4% of world population still using this format) than it was customary half a century ago. This might force a wider inner margin precisely to accommodate the binding.
This of course does not at all imply that, whatever margins have been set, they should not be followed by the programme, even at initial score creation: they should indeed.
It does indeed seem it was a bug they were not 10mm on both sides for Letter in the first place, and that is fixed now.
Automatically closed -- issue fixed for 2 weeks with no activity.