From: Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>
To: ntg-context@ntg.nl
Subject: Re: checking whether file is landscape or portrait
Date: Tue, 28 Jan 2020 17:15:35 +0100 [thread overview]
Message-ID: <20200128171535.94c6957676153a9d977406e6@gmail.com> (raw)
In-Reply-To: <6cd7f189-5582-4da4-819b-34bea4bb9278@gmx.es>
On Tue, 28 Jan 2020 16:51:35 +0100
Pablo Rodriguez <oinos@gmx.es> wrote:
> Dear list,
>
> I have to check whether an external PDF document is portrait or
> landscape (in order to manipulate it in different ways).
>
> From what I understand of grph-inc.mkiv, I came with the following sample:
>
> \unprotect
> \def\figureXSize{\clf_figurestatus{width}{}}
> \def\figureYSize{\clf_figurestatus{height}{}}
> \protect
>
> \setupexternalfigures[location=default]
> \starttext
> \getfiguredimensions[cow.pdf]
> \figuresize\\
> \figurelabel\\
> \figureXSize\\
> \figureYSize\\
> \ifnum\figureXSize<\figureYSize portrait\else landscape\fi
> \stoptext
>
> I feel bad of abusing the ConTeXt source in such a miserable way. But
> I’m afraid this is the best I can.
>
> Is there no standard way to check portrait or landscape on a given
> figure? A conditional for that would be useful.
>
> At least, I would like to know how to get image dimension numbers
> suitable to be deployed with \ifnum.
Use \ifdim to compare dimensions.
\setupexternalfigures[location=default]
\starttext
\getfiguredimensions[mill.png]
\ifdim\figurewidth>\figureheight
landscape%
\else
portrait%
\fi
\getfiguredimensions[cow.pdf]
\ifdim\figurewidth>\figureheight
landscape%
\else
portrait%
\fi
\stoptext
Wolfgang
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next prev parent reply other threads:[~2020-01-28 16:15 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 15:51 Pablo Rodriguez
2020-01-28 16:04 ` Taco Hoekwater
2020-01-28 16:39 ` Pablo Rodriguez
2020-01-28 16:46 ` Wolfgang Schuster
2020-01-28 16:15 ` Wolfgang Schuster [this message]
2020-01-28 16:43 ` Pablo Rodriguez
2020-01-29 13:31 ` Arthur Reutenauer
2020-01-29 15:44 ` Pablo Rodriguez
2020-01-30 12:08 ` context
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