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Re: Generate LOD cloud diagram image

From: Christian Chiarcos <christian_chiarcos@freenet.de>
Date: Sun, 20 Apr 2014 08:34:21 +0200
Message-Id: <DEC2584D-5042-4124-B321-B764FC79B10A@freenet.de>
Cc: "public-lod@w3c.org" <public-lod@w3c.org>, "mynarzjindrich@gmail.com" <mynarzjindrich@gmail.com>
Dear all,

at the Open Linguistics Working Group, we faced a similar problem when generating the Linguistic Linked Open Data cloud diagram (http://linguistics.okfn..org/resources/llod/) and we actually tried to use Richard's scripts at some point. However, as we didn't have too many Mac users among the people active in the group, we eventually began developing our own alternative, available under https://github.com/jmccrae/llod-cloud.py.

It creates a GraphML (not layouted, yet) for selected Datahub.io entries, categorized according to domain-specific categories. Using yed's (http://www.yworks.com/en/products_yed_about.html) "organic" layout, a reasonable representation can be achieved which is then manually brought in shape with yed (positioning) and  XML (font adjustment). In yed, we augment it with a legend and text and then export it into the graphic format of choice.

We would have liked to employ Richard's script directly, as its output is visually slightly more appealing, but in order to remain independent from proprietary software that we simply didn't have at the moment, we designed this semiautomatic alternative. In any case, I presume the software and the workflow can be easily adapted for other diagrams of this type.


On 18.04.2014, at 15:28, Jindřich Mynarz <mynarzjindrich@gmail.com> wrote:

Hi Luca,

in an interview I did with Richard Cyganiak last year Richard mentioned that there are automatic scripts to generate the preliminary version of the LOD cloud, which is then manually tweaked to achieve optimal layout. Quote from the interview [1]:

"We’ve now done some work on creating it automatically, so that the graph layout we did manually for the last version is done automatically. We have running code for that but it doesn’t yet work completely."

However, I haven't yet seen these scripts published.



[1] http://lod2.eu/BlogPost/1441-i-like-tables-interview-with-richard-cyganiak.html

Jindřich Mynarz

On Fri, Apr 18, 2014 at 11:32 AM, Luca Matteis <lmatteis@gmail.com> wrote:
Thanks but is there a script that could guide me to the creation of
the same type of diagram? I can't seem to understand how I could build
such diagram even with OmniGraffle installed.

On Wed, Apr 16, 2014 at 11:31 AM, Thomas Steiner <tomac@google.com> wrote:
> http://lod-cloud.net/#workflow :-)
> --
> Thomas Steiner, Employee, Google Inc.
> http://blog.tomayac.com, http://twitter.com/tomayac
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Received on Friday, 25 April 2014 13:24:37 UTC

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