Hi Mike,
I am looking forward to exploring this library with you! It might help if you give me call
or set up a quick meeting to go over this further.
-Harlan
----- Original Message -----
From: "mike thompson" <mithomps(a)redhat.com>
To: rhq-devel(a)lists.fedorahosted.org
Cc: "Harlan Douglas" <hdouglas(a)redhat.com>, "Malini Rao"
<mrao(a)redhat.com>, "Catherine Robson" <crobson(a)redhat.com>
Sent: Wednesday, October 31, 2012 3:28:35 PM
Subject: Re: RHQ/JON Chart Types Decision -- Input needed
On Oct 31, 2012, at 11:28 AM, Alan Santos <asantos(a)redhat.com> wrote:
Any chance you could include examples of the four types with the same
data?
Not easily. It is not like GFlot where one can just change the chart type. D3 is not a
charting API it is a low level toolkit for building (coding) visualizations (that is how
it is able to produce such a wide variety of non-traditional graphs). The code has be
tailor fitted to the problem. One of the problems with d3 is that each chart type uses
different data models so that is not so easy.
I have included the attachment of some sample chart types that we are comparing (without
similar data):
On Oct 30, 2012, at 11:59 PM, mike thompson <mithomps(a)redhat.com> wrote:
> Visualizing RHQ Metrics Data
>
> On the issue of chart types... More specifically, how do we want visually depict our
metric data?
>
> We are nearing the end of implementing the RHQ chart replacement (using
http://d3js.org) and want to get our chart types dialed in with input from our community
before they are completely finished.
>
> This isn’t a new issue, here is a link to previous design discussion:
https://docs.jboss.org/author/display/RHQ/Design-NewChartingLib
>
> Future Chart Types under consideration:
>
> 1) Line/Area chart - shows progression over time, needs to be supplemented with
high/low and OOB data (but all these lines become an area graph and easy visual
deciphering is lost)
> 2) Bar chart - familiar, easy to understand, needs high/low and OOB to convey
complete information, not entirely accurate as lower bar near axis depicts values that
were never part of the metric range
> 3) Candlesticks - accurately shows the range but not when values trended or
fluctuated during that time slice; users might need training to understand. OOB data would
need to be supplemented with high/low peak OOB data
> 4) Box Charts with whiskers:
http://en.wikipedia.org/wiki/Box_plot; nice looking,
sophisticated, but might be confusing to users. We could replace the quartiles with
high/low data and whiskers with OOB data
>
> Today, there is several ways of representing various time series metrics throughout
RHQ. We are trying to consolidate these into a couple standardized charts. For reference
to current RHQ Graph types please see attachments
>
> <RHQ Chart Gallery.pdf>
>
>
> There has been many opinions on this issue and we wanted further feedback from the
community on their thoughts. So please, reply back with your thoughts...
>
>
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>
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