[NTG-context] Strange behaviour of \start/stopplacefigure

Wolfgang Schuster schuster.wolfgang at gmail.com
Mon Apr 2 16:03:49 CEST 2018



> Tomas Hala <mailto:tomas.hala at mendelu.cz>
> 30. März 2018 um 19:01
> Hi,
>
> in the example below I came across the very strange behaviour of key
> location: if I use values none or top, the following paragraph is indented
> according to the settings whereas if I use the value bottom,
> the first line of the following paragraph starts just on the left,
> without any indentation.
>
> What am I doing wrong?
>
> Thanks for a help,
>
> Tomáš
>
> %%%%%%%%%%%%%%%%%%%%%% TL2017
>
> \starttext
> \indenting[yes,2em,first]
> \setupfloat[indentnext=yes]
>
> 1none. \input knuth
>
> \startplacefigure[location={none,}]
> \setupcaption[width=0.45\makeupwidth,align={nothyphenated,middle},textcommand=\crlf,distance=0cc]
> \startfloatcombination[2*1]
> \placefigure{caption left}{\externalfigure[cow.pdf][height=5cm]}
> \placefigure{caption right}{\externalfigure[cow.pdf][height=5cm]}
> \stopfloatcombination
> \stopplacefigure
>
> 1top. \input knuth
>
> \startplacefigure[location={top,none,}]
> \setupcaption[width=0.45\makeupwidth,align={nothyphenated,middle},textcommand=\crlf,distance=0cc]
> \startfloatcombination[2*1]
> \placefigure{caption left}{\externalfigure[cow.pdf][height=5cm]}
> \placefigure{caption right}{\externalfigure[cow.pdf][height=5cm]}
> \stopfloatcombination
> \stopplacefigure
>
> 1bottom. \input knuth
>
> \startplacefigure[location={bottom,none,}]
> \setupcaption[width=0.45\makeupwidth,align={nothyphenated,middle},textcommand=\crlf,distance=0cc]
> \startfloatcombination[2*1]
> \placefigure{caption left}{\externalfigure[cow.pdf][height=5cm]}
> \placefigure{caption right}{\externalfigure[cow.pdf][height=5cm]}
> \stopfloatcombination
> \stopplacefigure
>
> 1end. \input knuth !!! NOT INDENTED
>
> \stoptext
>
> %%%%%%%%%%%%%%%%%%%%%%
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> Hans Hagen <mailto:j.hagen at xs4all.nl>
> 2. April 2018 um 15:41
>
> That key only is for regular (here) floats

The problem is that float with the “bottom” or “auto” positions don’t 
indent the paragraph
which appears after the float while “top” does it.


%%%% begin example
\setupindenting[yes,6cm]
\setupfloat[figure][indentnext=yes]

\starttext

\setupbodyfont[modern]

{\bf NONE:} \input lorem

\placefigure[here]{HERE}{\blackrule[width=6cm,height=2cm]}

{\bf HERE:} \input lorem

\placefigure[top]{TOP}{\blackrule[width=6cm,height=2cm]}

{\bf TOP:} \input lorem

\placefigure[bottom]{BOTTOM}{\blackrule[width=6cm,height=2cm]}

{\bf BOTTOM:} \input lorem

\placefigure[auto]{AUTO}{\blackrule[width=6cm,height=2cm]}

{\bf AUTO:} \input lorem

\stoptext
%%%% end example


The reason for this are these line in page-one.mkiv:

\def\page_one_place_float_auto       {\page_one_place_float_otherwise}
\def\page_one_place_float_top        
{\page_one_place_float_otherwise\nonoindentation}
\def\page_one_place_float_bottom     {\page_one_place_float_otherwise}


Wolfgang
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