Re: D3 as a possible use case

Hi guys,

D3 is very flexible so you can use things like raw arrays of integers for
visualisations, but the most common way of formatting data is to have an
array of JSON/JavaScript objects, e.g:
[
  {
    "Field1": 50,
    "Field2": 55
  },
  {
    "Field1": 99,
    "Field2": 90
  }
]

When you use the D3 CSV parsing, it will generate a list of Javascript
objects like the above by default.

D3 has data accessor functions which let you specify how to pull figures
out of your data, e.g for the data above you might use something like the
following to access the figures in Field1:

function(d) { return d.Field1; }

The parameter 'd' represents a row of data, so you can use any javascript
expressions to access and prepare the data.

I've been meaning to drop an email to the list. This is one of the areas
I'm interested in. I'm currently working on a project that puts a Grammar
of Graphics layer on top of D3. I'm modelling this layer in RDF so it
connects to my data pipeline processing vocabulary (which in turn connects
to DCAT).

I've been reusing elements of RDF Data Cube for my metadata specifications
at the moment, but naturally I'm very interested in the work coming out of
CSV WG.

Thanks,

Kev

On 11 September 2014 17:03, Ivan Herman <ivan@w3.org> wrote:

> Jeremy, guys,
>
> I had a chat today with a colleague who uses D3[1]. What he told me that,
> in fact, D3 can also directly input CSV data. We were wondering (and
> neither of us knew) whether D3 has or not some extra requirements on the
> type of data they use, the way they convert the CSV data in whatever format
> they use internally (I think it is JSON). I realize this is not the usual
> use case, but we were wondering whether this would be a very special but
> nevertheless useful use case.
>
> The two persons that seem to be good resources here are:
>
> Scott Murray <scott.murray@alignedleft.com>
> Mike Bostock <mbostock@gmail.com>
>
> Cheers
>
> Ivan
>
>
> [1] http://d3js.org
>
> ----
> Ivan Herman, W3C
> Digital Publishing Activity Lead
> Home: http://www.w3.org/People/Ivan/
> mobile: +31-641044153
> GPG: 0x343F1A3D
> WebID: http://www.ivan-herman.net/foaf#me
>
>
>
>
>
>


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