Re: captions in float combinations

[Aditya Mahajan <adityam@umich.edu>]

On Sun, 8 Sep 2013, Robert Blackstone wrote:

>
> On 8 sep. 2013, at 17:01,  Marco Patzer <lists@homerow.info wrote:
>
>>
>> On 2013?09?08 Robert Blackstone wrote:
>>
>>> In my project I have all figure captions located above the figure.
>>> How can I move also these subcaptions to the top, to a position
>>> just below the main caption?
>>
>> As far as I can see, this is not supported by the combination
>> mechanism because the captions in combinations are not implemented
>> using the float captions mechanism.
>>
>> What you can do instead, is using a float caption and a float
>> combination, which will respect the global caption setups.
>>
>> \useMPlibrary [dum]
>>
>> \definefloat
>>  [combinationfloat]
>>  [combinationfloats]
>>  [figure]
>>
>> \setupcaption
>>  [combinationfloat]
>>  [number=no]
>>
>> \setupcaptions
>>  %% [location=bottom]
>>  [location=top]
>>
>> \starttext
>>  \startplacefigure [title=Foobar]
>>    \startfloatcombination [2*2]
>>      \startplacecombinationfloat [title=alpha] \externalfigure \stopplacecombinationfloat
>>      \startplacecombinationfloat [title=beta]  \externalfigure \stopplacecombinationfloat
>>      \startplacecombinationfloat [title=gamma] \externalfigure \stopplacecombinationfloat
>>      \startplacecombinationfloat [title=delta] \externalfigure \stopplacecombinationfloat
>>    \stopfloatcombination
>>  \stopplacefigure
>> \stoptext
>>
>> Marco
>
> Hi Marco,
>
> Thanks for your solution. It took me a while to harmonize your new float with my other floats in my document setups. These are all placed on the left side of the page and that caused yor float to move almost off the page.
> So I added:
>
> \setupfloat[combinationfloat][location=middle,spacebefore=medium,spaceafter=medium,sidespacebefore=medium,sidespaceafter=medium]
>
> and now it works beautifully.
>
> There is, however, another complication which makes that unfortunately I cannot use your solution "out of the box" in all situations.
> The paired figures in my particular project are often of different size, in particular of different height, (but small enough to be placed side by side).
> The author wants not only the figure captions at the top, but also the figures themselves.
> I did not mention this complication because, a) I had found a hack to place both figures at the top, and b) I had not expected that the solution for the problem I posted would be a new type of float instead of a new type of combination.
>
> So now the captions are at the top but the figures are not. (Law of Conservation of Misery)

You can try playing around with the location parameter of \externalfigure. 
For example:

\useMPlibrary [dum]

\definefloat
   [combinationfloat]
   [combinationfloats]
   [figure]

\setupcaption
   [combinationfloat]
   [number=no]

\setupcaptions
   %% [location=bottom]
   [location=top]

\starttext
   filler text \input ward
   \startplacefigure [title=Foobar]
     \startfloatcombination [4*1]
       \startplacecombinationfloat [title=alpha] \externalfigure[dummy][width=1cm, height=2cm, location=top] \stopplacecombinationfloat
       \startplacecombinationfloat [title=beta]  \externalfigure[dummy][width=1cm, height=3cm, location=top] \stopplacecombinationfloat
       \startplacecombinationfloat [title=gamma] \externalfigure[dummy][width=1cm, height=4cm, location=top] \stopplacecombinationfloat
       \startplacecombinationfloat [title=delta] \externalfigure[dummy][width=1cm, height=5cm, location=top] \stopplacecombinationfloat
     \stopfloatcombination
   \stopplacefigure

   More text \input knuth
\stoptext


Aditya
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