Re: How-to set resolution for png export?

[Lars Clausen <lars raeder dk>]

On Apr 2, 2009, at 6:31 PM, Richard Moll wrote:

> Lars Clausen wrote:
> > On Apr 2, 2009, at 5:12 PM, Richard Moll wrote:
> > > Hello,
> > > I would like to export some of my Dia diagrams as .png's to  
> > > include them in a OOo Impress presentation.
> > >
> > > When exporting via GUI no resolution can be set (here on WinXP  
> > > with v0.97-pre2) and the default (?) resolution ~400x180 is way  
> > > too "pixelig".
> > > In the help I found the command line syntax, which unfortunately  
> > > doesn't work either:
> > > C:\...>dia --export=test.png --size=600x --filter=png test.dia
> > > Notice: User Interface type settings change will take after restart
> > >
> > > ** (dia.exe:2948): WARNING **: --size parameter unsupported for  
> > > cairo-png filter
> > > test.dia --> test.png
> > You will need to compile Dia with libart support (if the Windows  
> > version isn't already), and then use the PNG(Libart) export a.k.a -- 
> > filter=png-libart
> Seems that currently there is no libart support:
> ** (dia.exe:5628): CRITICAL **: Can't find output format/filter png- 
> libart
>
> Unfortunately I don't know how to compile anything...
>
> Maybe Steffen would be so kind? :-)
> I (and I guess many other Win user too) would be very grateful!

That'd be where it'd have to happen - if libart even compiles on  
Windows.

> PS:
> In the GUI I can also choose pixbuf[png]. However, I couldn't figure  
> out the format option (png-pixbuf doesn't work) and I also don't  
> know if it does support the size option.
Same as cairo-png, does not support size. Shouldn't bee too hard for  
an incoming programmer to snatch the size code from libart-png and  
apply it elsewhere.

-Lars