Re: Inconsistent behaviour of placefigure[left] for math and text

[Aditya Mahajan <adityam@umich.edu>]

On Fri, 14 Apr 2006, Hans Hagen wrote:

> Hans Hagen wrote:
>> Aditya Mahajan wrote:
>>
>>> Hi,
>>>   When I use \placefigure[left] with some test, the text wraps around
>>> the figure. But if the paragraph, contains some formula, it does not
>>> wrap even after the figure is complete. How can I prevent such a
>>> behaviour.
>>>
> btw, can you make three (or more) examples: (yes|nocheck|text) with 
> left/bottom/fallback placement for the testsuits (see other threads)

I tried playing around with the fallback option, but had unexpected 
results. When I give fallback=left (does that make sense?) I get text 
in the right margin!! See example below.


% first a new key

\unprotect
\startconstants            dutch                     english
                            german                    czech
                            italian                   romanian
                            french

                  fallback: terugval                  fallback
                            fallback                  fallback
                            fallback                  fallback
                            fallback
\stopconstants

% use that key

\long\def\dofloat#1#2#3#4%
   {\dosetfloatbox{#1}{#2}{#3}{#4}%
    \doifelsevaluenothing{\??fl#4\c!criterium}
      {\dogetfloatbox{#1}\empty}
      {\ifdim\wd\floatbox>\getvalue{\??fl#4\c!criterium}\relax
         \postcenterfloatbox{\wd\floatbox}% else we get left aligned
         %dogetfloatbox{#1}\v!here        % see details/pascal
\dogetfloatbox{#1}{\executeifdefined{\??fl#4\c!fallback}\v!here}% 
PATCHED
       \else
         \dogetfloatbox{#1}\empty
       \fi}}

% pass the new location (will be done differently, hack

\def\dogetfloatbox#1#2%
   {\ifvisible
      \doifelsenothing{#2}
        {\getfromcommalist[#1][1]%
         \@EA\beforesplitstring\commalistelement\at:\to\floatmethod
         \@EA\aftersplitstring \commalistelement\at:\to\floatcolumn
         \@EA\aftersplitstring \floatcolumn\at*\to\floatrow
         \@EA\beforesplitstring\floatcolumn\at*\to\floatcolumn
         % todo: nog algemeen otr
         \ifx\OTRSETsetpreferedcolumnslot\undefined\else
           \OTRSETsetpreferedcolumnslot\floatcolumn\floatrow
         \fi}
        {\let\floatcolumn\empty
         \let\floatrow\empty
         \edef\floatmethod{#2}}%
      \doifundefined{\string\floatmethod\floatmethod}
        {\let\floatmethod\v!here}%
      \getvalue{\string\floatmethod\floatmethod}[\floatmethod,#1]% 
PATCHED
    \fi}


  \def\redofloatorder#1%
    {\doifnotinset\@@bknumbering{\v!nocheck,\v!text}
       {\doglobal\increment\nofplacedfloats\relax
        \gettwopassdata\s!float
        \iftwopassdatafound
          \doifnot\composedsectionnumber\twopassdata
            {\edef\oldcomposedsectionnumber{\composedsectionnumber}%
             \xdef\composedsectionnumber{\twopassdata}%
             \showmessage\m!floatblocks1{\nofplacedfloats,#1
  \oldcomposedsectionnumber,\composedsectionnumber}}%
        \fi}}

\protect


\setupfloats[numbering=text]

  % we use the marginwidth as criterium

\setupfloat[figure][criterium=\marginwidth,fallback=left]

  \starttext

  \placefigure[bottom]{1}{\framed[width=.9\marginwidth]{}} \input tufte
  \placefigure[bottom]{2}{} \input tufte
  \placefigure[left]{3}{} \input tufte
  \placefigure[left]{4}{\framed[width=.9\marginwidth]{}} \input tufte

  \stoptext

Aditya

-- 
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008