taverna-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Stuart Owen <stuart.o...@manchester.ac.uk>
Subject Re: Taverna logo as SVG?
Date Thu, 06 Sep 2018 16:22:19 GMT
I have copies in my email archives as 480x480:
https://www.dropbox.com/s/s47txe4qnpfvi60/taverna-wheel-large.png?dl=0

and also as EPS (Illustrator) format:
https://www.dropbox.com/s/6lu842ighnj92lr/taverna-wheel.eps?dl=0. I
think the EPS should be scalable vector format.

regards,

Stuart.


On 05/09/18 12:07, Stian Soiland-Reyes wrote:
> Hi,
>
> The ASF Community folks were asking for SVG or high-res versions of
> product logos, and I realized Taverna didn't really have one, as we only
> have a 256x256 PNG:
>
> https://taverna.incubator.apache.org/img/taverna-logo-256x256.png
>
> For years I have been looking for the original vector version of our
> logo, but this is the best I've found so far.  Anyone else have
> something in their email archives..?
>
>
> A bitmap format like PNG is bad because it can't scale well with web
> pages, particularly relevant for mobile/tablet phones or if scaled up on
> a poster printout. A vector format like SVG should be preferable and is
> now supported in all major browsers.
>
>
> Now I had a quick trace of the png in Inkscape and managed to come up with:
>
> http://taverna.staging.apache.org/img/apache-taverna-logo.svg
>
>
> Comments?
>
>
> Vectorizing by tracing the bitmap is a bit of cheating, so you will
> notice this file is actually larger in file size (216 kB) than the PNG
> (72 kB). This is basically the coastline measuring paradox. If I click
> "Simplify" in Inkscape I can reduce the details to a managable 32 kB,
> but then the cogs turn into wobbly circles!
>
>
> Here you can see what the svg might look like used in larger size:
>
> http://taverna.staging.apache.org/
>
>
> Try zooming in on a high-res tablet or screen to check the details. 
>
> For comparison if we use the old PNG:
>
> http://taverna.staging.apache.org/tmp/logo-png.html
>
> or even a PNG (56 kB) exported from the new SVG
>
> http://taverna.staging.apache.org/tmp/logo-png2.html
>
> .. then we see a clear difference in the SVG. For the logo in the top
> corner there is practically no visual difference as it's so tiny.
>
>
> Comparing the SVG with the original PNG will show information lost in
> the trace, e.g. the inner edges of the cog.
>
> An alternative might be to try to recreate some cogs in Inkscape or
> Adobe Illustrator, this should bring back the details and probably
> shrink the SVG size. But that would take more time... any volunteers?
>
>
> I've updated the banner which should then be better for print:
> http://taverna.staging.apache.org/img/apache-taverna-banner.svg
>
> I've not played with removing the gradient to a single-color, that can
> reduce file size, but makes it harder to pick the right orange..
>
>
> What do you think? Just keep the SVG as a side-resource for anyone
> interested?
>


Mime
View raw message