[vtkusers] VTK code swarm movie

[Bill Lorensen]

Love it!

On Tue, Oct 20, 2009 at 11:14 AM, Marcus D. Hanwell
<marcus.hanwell at kitware.com> wrote:
> On Tuesday 20 October 2009 11:05:49 David Doria wrote:
>> On Tue, Oct 20, 2009 at 10:33 AM, Marcus D. Hanwell
>>
>> <marcus.hanwell at kitware.com> wrote:
>> > Hi,
>> >
>> > Prompted by some recent interest in code swarm to visualize the history
>> > of VTK I created a few movies from the Git tracking repository (now
>> > available on GitHub). Thanks to Andrew Wilson for supplying config files
>> > with extra colors for different components of VTK.
>> >
>> > http://www.vimeo.com/7048785
>> >
>> > Thanks,
>> >
>> > Marcus
>>
>> Marcus,
>>
>> It looks neat, but I'm not that clear about what it is showing. Maybe
>> it is obvious to git users, but I've never seen a visualization like
>> this before. I found the legend for the colors, but maybe you could
>> put a little paragraph with the video explaining the dots: what each
>> dot indicates, what their size indicates, and what it means for them
>> to be flying around?
>
> Fair point, I added the following paragraph,
>
> The names are those of developers that made commits to the repository, their
> name fades out as the time since their last commit increases. Files swarm
> around the developers as they commit changes to them, gravitating towards the
> developers that last committed changes to those files (dots). The histogram
> along the bottom shows the number of files in each category that were changed
> on a given day.
>
> I hope that makes the visualization clearer, Code swarm is nothing directly to
> do with git, it just allowed me to extract real names rather than CVS
> usernames. If you would like more details you can also check out the
> developers web site. I think this is an interesting way of visually
> summarizing the history of a version controlled code base.
>
> http://vis.cs.ucdavis.edu/~ogawa/codeswarm/
>
> Let me know if the explanation is not clear.
>
> Thanks,
>
> Marcus
> --
> Marcus D. Hanwell, Ph.D.
> R&D Engineer, Kitware Inc.
> (518) 881-4937
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