mailing-list for TeXmacs Users

[Corcelle <address@hidden>]

Norbert Nemec a écrit :
> Corcelle wrote:
> > To sum up, the TeXgraph plugin will provide two kinds of exports :
> > 1.  direct export to eps (compiled or not)
> >     -> with a good screen display, a good printing and a good export 
> > to pdf - but with no transparency at all.
> > 2.  export to pdf (compiled or not) then convert to ps
> >     -> with a bad screen display, a good printing and a good export 
> > to pdf - but with a "flattened" transparency
> As I said in my previous mail: post-script does not know about 
> alpha-transparency, so any raster image that is converted via PS is 
> flattened. PDF can handle alpha-transparency, but TeXmacs does not 
> support direct PDF export. When you export to PDF, TeXmacs actually 
> writes to PS and calls ps2pdf internally, so all alpha transparency is 
> flattened. Currently, there is no way to export from TeXmacs to PDF 
> retaining transparency.
In fact, I meant an export to pdf from TeXgraph (produced by 
CmdTeXgraph) then a conversion from this pdf to ps within TeXmacs. And 
my "flattened" transparency is a "false" transparency.

To see what I mean, please have a look a the file : 
http://dl.getdropbox.com/u/246467/TeXgrah/texgraph.pdf
or http://dl.getdropbox.com/u/246467/TeXgrah/texgraph.tm
There are two illustrations of the two kinds of exports.

Emmanuël