From: Neil Soiffer <NeilS@dessci.com>

Date: Mon, 16 Aug 2010 16:52:10 -0700

Message-ID: <AANLkTimkKrnxSzu=RHE7NT2SzNbAzzbTtRWzXBvtdv0C@mail.gmail.com>

To: Sam Dooley <sam@integretechpub.com>

Cc: Frédéric WANG <fred.wang@free.fr>, "www-math@w3.org" <www-math@w3.org>

Date: Mon, 16 Aug 2010 16:52:10 -0700

Message-ID: <AANLkTimkKrnxSzu=RHE7NT2SzNbAzzbTtRWzXBvtdv0C@mail.gmail.com>

To: Sam Dooley <sam@integretechpub.com>

Cc: Frédéric WANG <fred.wang@free.fr>, "www-math@w3.org" <www-math@w3.org>

I agree with Sam on what he wrote with one exception (it may be that we agree, and that he wasn't completely precise in what he wrote): As Sam wrote, 'rowspacing' does not include the extent of the row above or below. Also, it does *not* include the rowline itself, so if the line is three pixels thick and rowspacing is 0, the line is *not* drawn inside of the adjacent rows. Neil Soiffer Senior Scientist Design Science, Inc. www.dessci.com ~ Makers of MathType, MathFlow, MathPlayer, MathDaisy, Equation Editor ~ On Fri, Aug 13, 2010 at 3:37 PM, Sam Dooley <sam@integretechpub.com> wrote: > Hi Frédéric, > > These responses are my readings only, and may not agree with those > of others in the WG. > > > First, from 3.5.1.2 (after the big attribute table): > > "If there are more rows (resp., columns or gaps) than supplied values, > the __last__ value is repeated as needed. If there are too many values > supplied, the excess are ignored." (emphasis mine) > > So the values should not cycle, as in your schematic, but Y_(n-1) is > the only value that should repeat. > > > Next, since rowspacing specifies the amount of space "between" rows, > my reading is that the row spacing should not belong to the extent of > either the row before it or the row after it, but it should position > between the cells that make up the rows, as in your first diagram. > I would expect the rowlines to draw within the rowspacing, and the > background color of the adjacent cells to extend to the rowlines. > > But nearby CSS declarations could make some cases a bit interesting > to work out. > > So as you suggest, the MathML rowspacing attribute seems not to give > quite the same flexibility as the CSS margin/padding values, and > corresponds exactly to neither, with regard to the bounding box > of the cells in the table. > > > Hope this helps, > Sam > > > > At 04:03 PM 8/13/2010, Frédéric WANG wrote: > > Hi Math WG, > > First I give as attachment an image for the test > Topics/EmbellishedOp/embStretch1 (in the current sample rendering, the > parentheses do not seem to stretch). > > Now, I would like to have some precisions on the way rowspacing works. So > suppose we have a mtable of N rows, framespacing="X,X" and rowspacing="Y0, > Y2, ..., Y_(n-1)". > > I understand that rowspacing applies to each "gap" and so we have the > following: > > ^ > | X > V > ----- > ///// > row0 > ///// > ----- > ^ > | Y_(0 mod n) > V > ----- > ///// > row1 > ///// > ----- > ^ > | Y_(1 mod n) > V > ----- > ///// > ... > ///// > ----- > ^ > | Y_(N-2 mod n) > V > ----- > ///// > row_(N-1) > ///// > ----- > ^ > | X > V > > The problem of my interpretation is that "rowpadding" (i.e. spacing inside > cells) seems undefined. Roger B. Sidje had a different interpretation. IIUC, > he thought that rowspacing applies to each row and so wanted to split the > values before and after: > > ^ > | X > V > ----- > ^ > | Y_(0 mod n)/2 > V > row0 > ^ > | Y_(0 mod n)/2 > V > ----- > ^ > | Y_(1 mod n)/2 > V > row1 > ^ > | Y_(1 mod n)/2 > V > ----- > ^ > | Y_(2 mod n)/2 > V > ... > ^ > | Y_(N-1 mod n)/2 > V > ----- > ^ > | Y_(N-1 mod n)/2 > V > row_(N-1) > ^ > | Y_(N-1 mod n)/2 > V > ----- > ^ > | X > V > > Combining the two ideas, we get another possible interpretation: apply > rowspacing to each gap but split the values inside and outside the cells: > > ^ > | X/2 > V > ----- > ^ > | X/2 > V > row0 > ^ > | Y_(0 mod n)/2 > V > ----- > ^ > | Y_(0 mod n)/2 > V > row1 > ^ > | Y_(1 mod n)/2 > V > ----- > ^ > | Y_(1 mod n)/2 > V > ... > ^ > | Y_(N-2 mod n)/2 > V > ----- > ^ > | Y_(N-2 mod n)/2 > V > row_(N-1) > ^ > | X/2 > V > ----- > ^ > | X/2 > V > > and there are probably more interpretations... > > Thanks by advance for your answer(s). > -- > Frédéric Wang. > Website <http://www.maths-informatique-jeux.com/> - Weblog<http://www.maths-informatique-jeux.com/blog/frederic/> > >Received on Monday, 16 August 2010 23:52:43 GMT

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