[xep-support] Aligning numbers in tables

[Gabriel Birke]

Hi, 

here is the sample for the alignment problem, a table with four cells. Zoom
in to the table and you will see in the upper left cell that the whitespace
is bigger at the bottom than at the top - because the renderer (correctly)
takes the descender height into consideration when centering. You can see
that in the lower left cell: The whitespace distance between the top border
and the "M" is the same as the distance between the bottom border and the
"gj".

In the right cells I have tried various means of optically aligning the
numbers by shifting the baseline by 10% or adding a 3pt padding at the top.
But the values come from experimentation and not from the font metrics. So
my question is this: Is there a way to vertically center text in a cell,
that takes only the font metrics above the baseline into consideration?

Greetings,

Gabriel
 

> -----Original Message-----
> From: owner-xep-support at renderx.com 
> [mailto:owner-xep-support at renderx.com] On Behalf Of Karl Stubsjoen
> Sent: Tuesday, January 26, 2010 6:17 PM
> To: xep-support at renderx.com
> Subject: RE: [xep-support] Aligning numbers in tables
> 
> Gabriel,
> Would you mind sending a sample FO?  If none is available, 
> maybe a sample
> XML and XSL source.  A small snippet would be fine, and possibly a PDF
> sample demonstrating the alignment issue.
> Thanks,
> Karl..
> 
> 
> Karl Stubsjoen
> Senior Sales Engineer / Professional Services RenderX, Inc. 
> (Phoenix, AZ)
> 
> Got XML?
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> stubsjoen at renderx.com   http://www.renderx.com   
> 
>   
> 
> -----Original Message-----
> From: owner-xep-support at renderx.com 
> [mailto:owner-xep-support at renderx.com]
> On Behalf Of Gabriel Birke
> Sent: Tuesday, January 26, 2010 9:19 AM
> To: xep-support at renderx.com
> Subject: [xep-support] Aligning numbers in tables
> 
> Hi all,
> 
> We have some tables that only contain numbers. The number 
> must be vertically
> centered. However, in our font, Franklin Gothic, all the 
> numbers start on
> the baseline and have the same height as the caps. This gives 
> the optical
> effect that vertically centered numbers have more whitespace 
> below them than
> above. 
> 
> I must confess that I am utterly confused by all the 
> alignment properties in
> the XSL-FO specification. Can someone point out to me how I 
> can center the
> numbers based on the cap height of the font and not based on 
> overall the
> font height? 
> 
> Greetings,
> 
> Gabriel Birke
> 
> 
> 
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