Re: [boost] Proposal for new variants of the Boost logo.

Subject: Re: [boost] Proposal for new variants of the Boost logo.
From: Patrick Horgan (phorgan1_at_[hidden])
Date: 2010-02-09 16:27:02

Paul A. Bristow wrote:
> PS svg versions will be useful for preparing pdf versions of docs - png don't
> seem to render as well with RenderX, the preferred tool.  This can easily be
> done with Inkscape I believe.
>   
I don't know what you mean by, "This can easily be done with Inkscape I 
believe."

I know one issue with mis-rendering of bitmap graphics in pdfs is using 
an inappropriate pixel width image.  If it has to be expanded by RenderX 
you'll get bad jaggies and if it needs to be scales smaller, you'll get 
aliasing issues.  From the svg you can generate the same pixel width 
that the pdf will use.  (It can be calculated if you know the right 
stuff, or trial and error will do as well.)

Of course you can just use the svg since it scales without those sorts 
of problems.  You need to open the svg file in an editor, such as 
inkscape, and turn on the visibility of the layer with the added text 
desired, and turn off the visibility of the others, since all of them 
are combined in one svg.  Similarly, you need to turn on the visibility 
of either a clear (alpha) background, or a white background.  The alpha 
background exists (even though you don't see it), to make the image the 
same size as with the white background.  They're each rectangles.

If you want, you don't even need a svg editor, since svg is an xml 
file.  You can find the appropriate layers with vi or emacs and change 
the first style after the label that names the background or text to 
either display:none, to hide, or display:inline, to show.

The label of the pertinent layers are "Powered By" (not the text itself, 
I just chose a layer label that reminded you of the layer's purpose), 
"Proposed For" (which I think is going away), and "For Use With".

The label of the layers for the alternate backgrounds are "Alpha 
Background", and "White Background".

Patrick