On 06/09/18 17:25, Stuart Owen wrote:
> 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 a scalable vector format.
Although looking closer, these seem to have a slightly different style
and perspective to them.
>
> 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?
>>
