On 2/10/2017 2:56 PM, Peter Rolf wrote:
Hi,

I tried to set some PDF boxes properly, but no luck (setupcanvas).
After searching the mailing archive from 2015 I found this (broken)
example. Is this still the official method to set the crop|trim|bleed boxes?

controlled by:

\setupinteractionscreen
   [width=max,height=max]

to be wikified

-----
\showframe

\setuplayout
   [location=middle,
    width=middle,
    height=middle,
    cropoffset=auto,
    trimoffset=1bp,
    bleedoffset=2bp,
    artoffset=2bp]

 \setupbackend
   [level=0]

\starttext

\definepapersize[TestA][width=100bp,height=200bp]
\definepapersize[TestB][width=150bp,height=250bp]

\setuppapersize[TestA][TestB]

test

\stoptext
-----

ConTeXt version 2017.01.27 gives

[..]
10 0 obj
<</Type/Page/Contents 11 0 R/Resources 9 0 R/MediaBox[0 0 150
250]/CropBox [ 0 0 150 250 ] /TrimBox [ 0 0 150 250 ]/Parent 13 0 R>>
endobj
[..]



One additional note. The Mediabox precision seems to be 5 now (and not
4). Taken from my latest table using TeXpage (/MediaBox[0 0 1655.39105
969.22291]). The precision value for the other boxes should be adjusted
to avoid rounding problems (?Box < MediaBox).

[lpdf-mis.lua]
[..]
-- temp hack: the mediabox is not under our control and has a precision
of 4 digits

local factor  = number.dimenfactors.bp
local f_value = formatters["%0.4F"]
[..]


Not in a hurry, fix (or advice) is welcome at any time :D


Best wishes,  Peter



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