Hi Vikas,
Vikas Rawal wrote:
> I am trying to use textpos to position images at specific location on
> a frame.
I now use TikZ to do that. I have the impression it is easier. Though, I have
the real impression of writing LaTeX inside an Org buffer... which I dislike.
I'd like to write text as text, and still get the ability to convert that to
HTML, for review, even if the layout wouldn't be (at all) the same.
> I would like something like this in the beamer export:
>
> \begin{textblock}{10}(3,3) \visible <2-> {
> \includegraphics[width=.9\linewidth]{scatterplot2.png}
> } \end{textblock}
>
> I have defined the following beamer environment.
>
> (add-to-list 'org-beamer-environments-extra
> '("textpos1" "w" "\\begin{textblock}{%h}(3,3) \\visible %a {" "}
> \\end{textblock}"))
You normally could use such a block (the old "org-special-blocks", now
integrated in Org 8 -- thanks Nicolas):
--8<---------------cut here---------------start------------->8---
#+begin_textblock
Contents
#+end_textblock
--8<---------------cut here---------------end--------------->8---
> The problem is (3,3) is fixed in the above specification. How can I
> specify it for a given headline? I have tried various ways of
> generalising this but nothing seems to work.
>
> For example, if I use the following:
>
> (add-to-list 'org-beamer-environments-extra
> '("textpos1" "w" "\\begin{textblock}%h \\visible %a {" "}
> \\end{textblock}"))
>
> and write the headline as {10}(3,3), I get \{10\}(3,3) in beamer
> export rather than {10}(3,3).
Though, the problem stays the same with what I think is the right way to do
it...
See how Org gets converted to LaTeX:
--8<---------------cut here---------------start------------->8---
#+begin_myenvironment \begin{myenvironment}
Test of a new Test of a new
environment. environment.
#+end_myenvironment \end{myenvironment}
--8<---------------cut here---------------end--------------->8---
That's OK. But the environment had no parameters.
--8<---------------cut here---------------start------------->8---
#+begin_myenvironment{3} \#+begin\_myenvironment\{3\}
Test of a new Test of a new
environment. environment.
#+end_myenvironment \#+end\_myenvironment
--8<---------------cut here---------------end--------------->8---
That's completely invalid LaTeX.
--8<---------------cut here---------------start------------->8---
#+begin_myenvironment {3} \begin{myenvironment}
Test of a new Test of a new
environment. environment.
#+end_myenvironment \end{myenvironment}
--8<---------------cut here---------------end--------------->8---
That's valid LaTeX, but the arguments of the environment have been ignored!
IIRC, that's how we did before, with the original `org-special-blocks' file.
> How does one use the escape %o? I have looked through ox-beamer.el,
> worg and mailing list archives, but could not find a clear
> explanation. Will be grateful for a pointer.
I've no idea. I wonder as well how we do this.
Best regards,
Seb
--
Sebastien Vauban
