dvipdfvm, xdvipdfmx: wrong @xpos and @ypos under rotation

[Shunsaku Hirata]

Hi Alexander,

I will fix this soon.
Thank you for reporting.


Thanks,
Shunsaku Hirata

2019年5月3日(金) 6:40 Alexander Grahn <A.Grahn at hzdr.de>:
>
> Hello all,
>
> while implementing a command for the creation of PDF destinations for the
> [x]dvipdfmx backends, I noticed that @xpos and @ypos are substituted with
> wrong coordinate values if they are placed into a box that is subject to
> rotation. Both variables are used to mark anchors and rectangles of PDF
> destinations.
>
> Rotation becomes relevant if page content is typeset onto landscape pages using
> the `landscape' environment provided by the lscape and pdflscape packages.
>
> On the other hand, @xpos and @ypos behave correctly if they are subject to
> scaling.
>
> The example code below demonstrates the problem. Would it be possible to fix
> it?
>
> Thank you in advance! Kind regards,
>
> Alexander
> --
>
> \documentclass{article}             %xelatex
> %\documentclass[dvipdfmx]{article}  %latex + dvipdfmx
>
> \usepackage[a4paper]{geometry}
> \usepackage{graphicx} % \scalebox \rotatebox
>
> \protected\long\def\pdflink#1#2{%
>   \special{pdf:bann<</Type/Annot/Subtype/Link/A<</S/GoTo/D(#1)>>>>}#2%
>   \special{pdf:eann}%
> }
>
> \protected\long\def\pdfdestrect#1#2{%
>   \leavevmode%
>   \begingroup%
>     \setbox0=\hbox{#2}%
>     \lower\dp0\hbox{%
>       \special{pdf:obj @dest@#1 at llx @xpos}%
>       \special{pdf:obj @dest@#1 at lly @ypos}%
>     }%
>     \copy0%
>     \raise\ht0\hbox{%
>       \special{pdf:dest (#1)
>         [@thispage /FitR @dest@#1 at llx @dest@#1 at lly @xpos @ypos]}%
>     }%
>   \endgroup%
> }
>
>
> \begin{document}
>   \pdflink{plain}{\strut Goto `Plain Text'}
>   \pdflink{scaled}{\strut Goto `Scaled Text'}
>   \pdflink{rotated}{\strut Goto `Rotated Text'}\\[10ex]
>
>   \pdfdestrect{plain}{\fbox{Plain Text}}
>   \scalebox{2}{\pdfdestrect{scaled}{\fbox{Scaled Text}}}
>   % not working in (x)dvipdfmx
>   \rotatebox{90}{\pdfdestrect{rotated}{\fbox{Rotated Text}}}
> \end{document}