A few natural table issues

["Brian R. Landy" <landy@alumni.caltech.edu>]

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Hi, I've noticed a few issues with natural tables.

1. Embedding images into tables do not scale correctly using recent  
ConTeXt releases.  They do using the TeXLive 2007 version  
(2007.01.12).  It does not matter whether I use factor=max or fit.  I  
find I need to use the \vbox{\noindent{...}} structure to make the  
picture obey table's align= setups.  test1.tex and weight.eps/pdf  
demonstrate this behavior.  I attached pdf's to show the "good"  
behavior.


2. Background colors & frames -- bottomframe on a cell is obscured by  
a background color on the cell below.  Similarly, a rightframe is  
obscured by a backgroundcolor to the cell to the right.  test2.tex  
demonstrates this behavior.


3. Using \chardef\characteralignmentmode=2 widens columns and doesn't  
quite center the data.  It appears as if the decimal is centered, but  
this does not necessarily center the text.  The top row shows tables  
without setting the alignment mode, the second row of tables show  
what happens when it is set equal to 2.  It would be nice if the left- 
hand tables looked the same, and the bottom right were centered  
better.  test3.tex demonstrates this.


4. I was wondering if anyone had any pointers on improving  
performance and reducing memory usage with natural tables. Are there  
particular options or settings to avoid, and so on?  I'm using Perl  
scripts to generate the ConTeXt code, so tend to output many  
setupTABLE commands.  I have some tables which can take a minute or  
two to render for one page, and might have a document with 15 pages,  
so it takes some time.  I saw some recent postings regarding  
linetables; I did not use them initially given they did not seem  
actively used and natural tables provide all the features I need; but  
I would be willing to give them a try if I understood what  
limitations they might have relative to natural tables.

Many thanks!
Brian

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[-- Attachment #1.2.2: test1.tex --]
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\newdimen\pageleft%
\starttext%
\start%
\bTABLE[align={middle,lohi},frame=on,width=3.0in,height=1.0in]%
\bTR%
\bTD{1-1}\eTD%
\bTD{2-1}\eTD%
\eTR%
\bTR%
\bTD{1-2}\eTD%
\bTD{\vbox{\noindent\externalfigure[./weight][factor=max,,location=middle]}}\eTD%
\eTR%
\eTABLE%
\stop%
\par
\start%
\bTABLE[align={middle,lohi},frame=on,width=1.0in,height=2.0in]%
\bTR%
\bTD{1-1}\eTD%
\bTD{2-1}\eTD%
\eTR%
\bTR%
\bTD{1-2}\eTD%
\bTD{\vbox{\noindent\externalfigure[./weight][factor=max,,location=middle]}}\eTD%
\eTR%
\eTABLE%
\stop%
\stoptext%

[-- Attachment #1.2.3: weight.pdf --]
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[-- Attachment #1.2.4: test1-good.pdf --]
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[-- Attachment #1.2.6: test2.tex --]
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\setupcolors[state=start]%
\definecolor[ice][r=0.867, g=0.945, b=0.973, s=0.9]%
\starttext
\bTABLE[align=middle,background=color,frame=off]%
\bTR[bottomframe=on]%
\bTH{test1}\eTH%
\bTH{test2}\eTH%
\eTR%
\bTR%
\bTH[rightframe=on]{test1}\eTH%
\bTH{test2}\eTH%
\eTR%
\eTABLE%
\crlf%
\crlf%
\bTABLE[align=middle,background=color,frame=off]%
\bTR[bottomframe=on]%
\bTH{test1}\eTH%
\bTH{test2}\eTH%
\eTR%
\bTR%
\bTH[rightframe=on]{test1}\eTH%
\bTH[backgroundcolor=ice]{test2}\eTH%
\eTR%
\eTABLE%
\crlf%
\crlf%
\bTABLE[align=middle,background=color,frame=off]%
\bTR%
\bTH{test1}\eTH%
\bTH{test2}\eTH%
\eTR%
\bTR[topframe=on]%
\bTH{test1}\eTH%
\bTH[backgroundcolor=ice,leftframe=on]{test2}\eTH%
\eTR%
\eTABLE%
\stoptext%

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[-- Attachment #1.2.8: test3.tex --]
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\starttext
\hbox{
\framed[width=1.5in,frame=off,align=flushleft]{
\bTABLE
\setupTABLE[column][1][align=right]
\setupTABLE[column][2][alignmentcharacter={.},aligncharacter=yes,align=middle]
\bTR \bTH A \eTH \bTH B \eTH \eTR
\bTR \bTD First \eTD \bTD 71 \eTD \eTR
\bTR \bTD Second \eTD \bTD 43 \eTD \eTR
\bTR \bTD Total \eTD \bTD 115 \eTD \eTR
\eTABLE
}
\framed[width=1.5in,frame=off,align=flushleft]{
\bTABLE
\setupTABLE[column][1][align=right]
\setupTABLE[column][2][alignmentcharacter={.},aligncharacter=yes,align=middle]
\bTR \bTH A \eTH \bTH B \eTH \eTR
\bTR \bTD First \eTD \bTD 71.0 \eTD \eTR
\bTR \bTD Second \eTD \bTD 43 \eTD \eTR
\bTR \bTD Total \eTD \bTD 115 \eTD \eTR
\eTABLE
}
}
\crlf

\hbox{
\framed[width=1.5in,frame=off,align=flushleft]{
\bTABLE
\setupTABLE[column][1][align=right]
\setupTABLE[column][2][alignmentcharacter={.},aligncharacter=yes,align=middle]
\chardef\characteralignmentmode=2
\bTR \bTH A \eTH \bTH B \eTH \eTR
\bTR \bTD First \eTD \bTD 71 \eTD \eTR
\bTR \bTD Second \eTD \bTD 43 \eTD \eTR
\bTR \bTD Total \eTD \bTD 115 \eTD \eTR
\eTABLE
}
\framed[width=1.5in,frame=off,align=flushleft]{
\bTABLE
\setupTABLE[column][1][align=right]
\setupTABLE[column][2][alignmentcharacter={.},aligncharacter=yes,align=middle]
\chardef\characteralignmentmode=2
\bTR \bTH A \eTH \bTH B \eTH \eTR
\bTR \bTD First \eTD \bTD 71.0 \eTD \eTR
\bTR \bTD Second \eTD \bTD 43 \eTD \eTR
\bTR \bTD Total \eTD \bTD 115 \eTD \eTR
\eTABLE
}
}
\stoptext

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