Gap above \placefigure[top] ?

Gap above \placefigure[top] ?

[Steffen Wolfrum]

Hi,

sorry, the next looks so simple, it's probably an often answered thing 
(I just could not find the answer anywhere…)

Why is there a little gap above the figure, though it should be "top".
How to avoid it?

\starttext 
\showframe
\placefigure[top]{}{\externalfigure[../Figures/Test][frame=off]} 
\stoptext 


(With or without figure/path has the same gap)

Steffen

Re: Gap above \placefigure[top] ?

[Taco Hoekwater]

Hi Steffen,

Steffen Wolfrum wrote:
> Hi,
> 
> sorry, the next looks so simple, it's probably an often answered thing 
> (I just could not find the answer anywhere…)
> 
> Why is there a little gap above the figure, though it should be "top".
> How to avoid it?
> 
> \starttext 
> \showframe
> \placefigure[top]{}{\externalfigure[../Figures/Test][frame=off]} 
> \stoptext 

The gap is the difference between the height of a typical line
(\blank) and TeX's \topskip parameter. That explains it, but
I do not see a nice way to correct the behaviour.


Best, Taco

Re: Gap above \placefigure[top] ?

[Hans Hagen]

Taco Hoekwater wrote:
> Hi Steffen,
>
> Steffen Wolfrum wrote:
>   
>> Hi,
>>
>> sorry, the next looks so simple, it's probably an often answered thing 
>> (I just could not find the answer anywhere^[$B!D^[(B)
>>
>> Why is there a little gap above the figure, though it should be "top".
>> How to avoid it?
>>
>> \starttext 
>> \showframe
>> \placefigure[top]{}{\externalfigure[../Figures/Test][frame=off]} 
>> \stoptext 
>>     
>
> The gap is the difference between the height of a typical line
> (\blank) and TeX's \topskip parameter. That explains it, but
> I do not see a nice way to correct the behaviour.
>   
i'll add a switch:

\unprotect

\chardef\topinserttopskipmode=0 % 1 no topskip

\def\OTRONEdotopinsertions
  {\ifvoid\topins\else
     \ifgridsnapping
       \box\topins
       \vskip-\topskip
       \vskip\strutheight % [xx] new: see icare topbleed
     \else
       \ifcase\topinserttopskipmode
         % 0: default, do nothing
       \or
         % 1: no topskip (crossed fingers)
         \vskip-\topskip
         \vskip\strutheight
       \fi
       \unvbox\topins
     \fi
   \fi
   \global\topinserted\zeropoint}

\protect

\starttext
\showframe
\placefigure[top]{}{\externalfigure[dummy][frame=on]}
\stoptext

so, 

\chardef\topinserttopskipmode=1

will remove topskip; undocumented, not interfaced, etc 

Hans  


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