Hi Andrea,

I'm inclined to agree with Tom - there is no default that will work in all
instances.  That being said, you can use an #ATTR_LATEX line to modify the
placement for each image - see here:
http://orgmode.org/org.html#Images-in-LaTeX-export

Alternatively, (and this is very much a hack, which I can't guarantee will
work) you could make the org-mode default behaviour be [ptb] by replacing
the =(floatp "[htb]")= line with =(floatp "[ptb]")= in the
=org-export-latex-format-image= function definition in the file
org/lisp/org-latex.el ... you would have to do something similar to the
=org-export-latex-tables= function for tables.

HTH,
Chris


On Thu, Jan 27, 2011 at 11:53 AM, Thomas S. Dye <tsd@tsdye.com> wrote:

> Hi Andrea,
>
> There is no default that will work in all situations.  A default of [ptb]
> will typically generate some pages with just a figure and lots of white
> space.  I make a lot of latex documents and I find the path of least
> resistance is to use a default of [htb!] and pay attention to the large
> figures so they don't float to the end and take the other figures with them.
>
> All the best,
> Tom
>
> On Jan 27, 2011, at 4:04 AM, Andrea Crotti wrote:
>
>  I could not understand why on earth my pdf had all the images after the
>> whole document.
>> Then I found this:
>>
>> http://www.eng.cam.ac.uk/help/tpl/textprocessing/float_hint.html
>>
>> and found out that the default for a figure was
>> \begin{figure}[ptb]
>>
>> while in the generated latex file from org I had
>> \begin{figure}[htb]
>>
>> So I changed to the default and now it works fine...
>> Isn't that default maybe a bit dangerous?
>>
>> The fact is that if the first image doesn't fit "here" it will be
>> printed late and all the others after.
>>
>> I might also just use the latex code here for these things, I don't care
>> to export to other formats, it's just nicer to look if it's in org syntax
>>
>>
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