Re: background of DIA diagram

[Vedran Vucic <vedran vucic gmail com>]

Hello,

Exporting to Cairo png with alpha produced shapes with transparent
bakcground while export to svg produced image with white background
and shapes on it.
However, I am satisfied with Cairo png with alpha format.
I need it in teh following scenarion.:
1. I create diagram that should be put in the doucment with specific
bakground. Thus, diagram should be transparent so the shapes (black
lines) do have good contrast on existing document.  That is all I
need.

However, Cairo png with alpha is good solution for now.

Thanks,

VV

On Sun, Nov 16, 2014 at 5:41 PM, Hans Breuer <hans breuer org> wrote:
> Am 16.11.2014 um 11:26 schrieb Vedran Vucic:
> > Hello,
> >
> > I found how can I change color of DIA diagram background. But,  how to
> > make it transparent?
> As Michael and Thomas already said transparency kind of depends on the
> context. If you want to look through your diagram window to your desktop
> that's even not possible with the current development version, which
> otherwise has much improved transparency support.
>
> But if you want to export your diagram with a transparent background that's
> already possible with Dia 0.97.x, if you choose the right format. There is
> for example "Cairo PNG (with alpha)". Also the vector format filters (SVG,
> WMF, WPG, etc. pp.) usually don't draw the background.
>
> If you want something else, please be more specific.
> See also https://bugzilla.gnome.org/show_bug.cgi?id=591525#c16 about the
> reason to exclude transparency from the diagram background color.
>
> Regards,
>         Hans
>
> -------- Hans "at" Breuer "dot" Org -----------
> Tell me what you need, and I'll tell you how to
> get along without it.                -- Dilbert
>
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