Re: [Qgis-developer] Will be submitting new QGIS D3 Chart plugin - experimental or not

[C Hamilton]

Thanks so much for everyone who has commented. I like the idea of being
able to interactively move the position of the rings so that the inner
becomes the outer or any other ring for that matter.

There is always a trade off on how you visualize data. I plan on adding the
rectangular graph as well but I started with the circular graph because I
had a request to do so. There are several other items that I plan on adding.

1. Select the beginning and ending colors.
2. Use any color ramp and select the number of bins.
3. Rectangular chart.

I used an existing circular heatmap to get started, but will need to either
extend it or write something new because it doesn't do exactly what I will
need.

On Thu, Jul 21, 2016 at 5:31 AM, Tom Chadwin 
wrote:

> Barry Rowlingson wrote
> > the inner ring should connect to the outer ring,
> > forming a doughnut in 3d!
>
> Feature request.
>
>
>
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Re: [Qgis-developer] Will be submitting new QGIS D3 Chart plugin - experimental or not

[Tom Chadwin]

Barry Rowlingson wrote
> the inner ring should connect to the outer ring,
> forming a doughnut in 3d!

Feature request.



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Re: [Qgis-developer] Will be submitting new QGIS D3 Chart plugin - experimental or not

[Barry Rowlingson]

[bit off-topic, more about the viz itself than the plugin repo policy
on "experimental" status]

On Wed, Jul 20, 2016 at 3:39 PM, Neumann, Andreas  wrote:

> It looks like a very nice plugin - thank you for developing and submitting
> it! Definitely useful for people doing time analysis. I will recommend it to
> my local police, who already is doing crime analysis with QGIS.

 I'm not convinced the graphics are particularly honest. The innermost
cells are so much smaller than the outer ones, and this distorts our
perception of what is important. That might be fixable by varying the
radius non-linearly but that might look weird.

 A straightforward rectangular heat map with square cells doesn't have
this problem. I appreciate you lose the wraparound when plotting hours
of the day over many days, or days of the week over many weeks, but
this circular plot can only do that in one dimension anyway. For
instance in the examples on the plugin page I can't easily compare
Sunday to Monday - the inner ring should connect to the outer ring,
forming a doughnut in 3d!

 You can put a rectangular heatmap inside 8 copies of itself if you
want to emphasise the periodic repeating nature of a dimension, or
even make an interactive heatmap the user can drag infinitely, with
the image repeating - basically mapping the 3d doughnut onto a 2d
sqare!

 Barry
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Re: [Qgis-developer] Will be submitting new QGIS D3 Chart plugin - experimental or not

[Neumann, Andreas]

Hi, 

You can submit it as non-experimental right away, if you think it is
already mature enough. I think this flag is self-declared - up to the
developer to decide. Paolo, who checks new plugins may suggest to the
plugin author to mark it as experimental if he thinks it is not yet
mature enough. 

Reasons for experimental: 

- still under early development (initial version) 

- may fail in a lot of cases (unsuitable for production use) 

- no documentation at all - not obvious for the user how to use it 

It looks like a very nice plugin - thank you for developing and
submitting it! Definitely useful for people doing time analysis. I will
recommend it to my local police, who already is doing crime analysis
with QGIS. 

Greetings, 

Andreas 

On 2016-07-20 16:22, C Hamilton wrote:

> I am planning on submitting a new D3 plugin to the QGIS plugins repo. This 
> generates a circular heatmap D3 web page that has some similarities to the 
> ArcGIS data clock. This is the github link.
> 
> https://github.com/NationalSecurityAgency/qgis-d3datavis-plugin
> 
> I have done a write up that shows what it does. The question that I have is 
> when should a plugin be marked experimental? Are their advantages in marking 
> it experimental? I think what I have done so far is fairly solid and the only 
> changes will be to improve upon it and perhaps add some other charts.
> 
> I would appreciate your thoughts before I submit the plugin. 
> 
> Thanks,
> 
> Calvin 
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Re: [Qgis-developer] Will be submitting new QGIS D3 Chart plugin - experimental or not

[Paolo Cavallini]

Hi Calvin,

Il 20/07/2016 16:22, C Hamilton ha scritto:
> I am planning on submitting a new D3 plugin to the QGIS plugins repo.
> This generates a circular heatmap D3 web page that has some similarities
> to the ArcGIS data clock. This is the github link.
> 
> https://github.com/NationalSecurityAgency/qgis-d3datavis-plugin
> 
> I have done a write up that shows what it does. The question that I have
> is when should a plugin be marked experimental? Are their advantages in
> marking it experimental? I think what I have done so far is fairly solid
> and the only changes will be to improve upon it and perhaps add some
> other charts.
> 
> I would appreciate your thoughts before I submit the plugin.

Thanks for that. IMHO the experimental flag is useful if you want to
have a first test from a restricted community of, possibly more skilled,
users before submitting it to a worlwide audience of potentially
hundreds of thousands users. It is imperative if you suspect your plugin
might mess up user data or cause other inconveniences.
Please note that other efforts are underway to use graphical js libs
from within QGIS, so you may find convenient to join forces.
Looking forward to see your plugin, and publish it.
All the best.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
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