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[Vincent Douce Mathoscope <address@hidden>]

thanks Philip for this answer, i come back to get a bit forward in this topic 
because i will soon need to works on the graphics for my book
here a png file that both Geogebra, mac os X's Finder and Gimp announce to be 
456 × 369

here a pdf version of this file

Attachment: grille2.pdf
Description: Adobe PDF document

i insert it in a blanck TeXmacs document with "insert->image->link image"
the result is :

Attachment: texmacs.tm
Description: Binary data

here screenshot :

the png is not by default inserted with the right size
the pdf is not inserted at all...

i was starting to guess, reading your message, that forall size i choose ine 
Geogebra for the pdf export, the size of the characters will be constant, as 
defined in GeoGebra ? it may work for a pdf export but in this case the pdf 
does not work...

Vincent

> Le 8 sept. 2017 à 23:32, Philippe Joyez <address@hidden> a écrit :
> 
>> any LaTeX typed in GeoGebra become an element of a pdf image and i can put
>> the siez of the resulting image to something where the LaTeX formulas seem 
>> to
>> fit to the TeXmacs formulas, but that's not automatic.
> 
> Although pdf images are perfectly scalable, they are generated with a well-
> specified size. When you insert such image in TeXmacs, the default is to 
> keep
> the original size of the image (at least in linux and windows, I can't say 
> for
> sure in MacOS where things might be slightly different). So if your source
> application generates 12pt size font, if you do not change the default image
> size upon import, it should appear in Texmacs at 12pt size...  This works 
> fine
> for instance if you generate a pdf image from Inkscape.
> 
> As for Geogebra, my quick experiments (with an outdated v.4, current is 5.x)
> shows that the actual size of the images it generates differs from what it
> claims in the export window... In other words the image size is wrong (too
> large in my case).  If that is your problem, it is not a texmacs issue (you
> would experience the same problem anywhere you import that image, e.g. in
> LibreOffice) and you should ask for a solution at Geogebra's forums.
> 
> Concerning tikz, I've never used it and can't say.
> 
> Philippe

––––––––––––––––––––––––––
Vincent Douce
Mathoscope, éveilleur de mathématiques
http://mathoscope.xyz
06~13~11~07~26
Bagnères de Bigorre 65200