Thanks a lot Eric
The small sise was just there for my experiments to ensure my attributes
were processed
Thanks again i will be able to finish my deck of slides.
I did not know this syntax but I guessed that the workflow was the problem

Kind regards
Le 10 févr. 2015 10:51, "Eric S Fraga" <e.fraga@ucl.ac.uk> a écrit :

> On Monday,  9 Feb 2015 at 21:59, deadbrain wrote:
> > Hi all org-mode gurus,
> > I am trying to generate a deck of slides using Emacs/org-mode /beamer &
> > some companion tools (graphviz & plantuml).
> > I have a problem to set the dimensions for the graphviz (or plantuml)
> > generated pictures.
> > Whatever the version used (tested 8.2.10-30 or 8.3-beta from git) and
> > whatever the option (ATTR_LATEX set) the TEX file generated does not
> > contain the right scaling options.
>
> Two changes are required to get this to work.
>
> 1. you need to have the latex attribute just before the image.  To do
>    this, execute the src block which will generate the results
>    line.  Then move the attribute line to just before the RESULTS
>    directive.
>
> 2. you need to tell the exporter that the results to export are a file.
>
> In summary, I got your example to work with the following snippet:
>
> --8<---------------cut here---------------start------------->8---
> #+name: graph-info-figure
> #+begin_src dot :file graph-intro.png :cmdline -Kdot -Tpng :results file
> digraph G{
> node1 -> node2
> node1 -> node3
> node3 -> node4
> node3 -> node5
> }
> #+end_src
>
> #+ATTR_LATEX: :height 3cm
> #+results: graph-info-figure
> [[file:graph-intro.png]]
> --8<---------------cut here---------------end--------------->8---
>
> I named the src block as I find that it is good practice in general to
> do so...
>
> Note that I changed the size directive to 3cm to see the effect clearly!
>
> HTH,
> eric
>
>
> --
> : Eric S Fraga (0xFFFCF67D), Emacs 25.0.50.1, Org
> release_8.3beta-798-g528b90
>