\setuplayout parameters

[John Culleton <john@wexfordpress.com>]

I want to set up a book 5.5 x 8.5 with .5in margins left and right. 
During the development process I want to be able to print it on
US standard 8.5 x 11 sheet of paper.

Here is my current prologue (I have tried several):
\setupoutput[pdftex]
\definepapersize[bok][width=5.5in,height=8.5in]
\setuppapersize[bok][letter]
\setuplayout[marginwidth=.5in,location=middle]
\showframe

When the resultant pdf is printed via Acrobat Reader I find the 
following anomalies:

Total width of page outline: 5 7/16 in.
Width of actual text block: 4.5 in approx. (this is OK.)
Width of text block outline: 3 29/32 in (text overlaps block outline.)
And so on. There are gaps between the margin outlines and the text 
block outline. The margin outlines are the wrong size. 

When I put the document in final form with
\setuppapersize{bok][bok]
and comment out \showframe
Then the text block is not quite centered: the left margin is smaller 
than the right margin. 

Using Xpdf instead of Acrobat Reader shows the same anomalies.
Changing marginwidth to margin shows the same anomalies. and so on.



-- 
John Culleton
Able Typesetters and Indexers
http://wexfordpress.com