[Pharo-project] Roassal Survey

Ciprian Teodorov ciprian.teodorov at gmail.com
Wed Sep 26 14:49:20 EDT 2012

Hello everybody,

During the weekend I had a look at the Roassal project and I found it very
good. Moreover I find that asking around the community for good ideas to
drive the future of the project a cool initiative.

About that, I completely agree with Ben's first 3 directions. Other cool
ideas in terms of ergonomy can be found in the
Yed<http://www.yworks.com/en/products_yed_about.html>graph drawing

>From my experience working on computer-aided design tools for the
electrical (electronical) industry i can say that one very important
feature that these kind of tools need is the ability to create/edit large
hierarchical graphs. From my perspective a electrical circuit is nothing
more than a large graph of interconnected elements with each node
representing a physical device. Hierarchical composition of such structures
is necessary to ease the understanding of the system. In consequence IMHO
being able to easily dive-in and get-out of hierarchical components is the
most important feature that Roassal is missing right now. Just imagine
looking at a layed-out graph of ten interconnected nodes, then just by
clicking on one of these nodes the view is replaced by another graph
representing the inner components. Furthermore I believe that such an
approach can be abstracted away to more complex interactions (opening a
view with an editor window on that particular instance of the node, etc).

Another feature that I think it is missing in most (if not all) graph
viewers/layout systems/editors is the possibility to have connection ports
on the hierarchical nodes in order to preserve the connections passing
through the hierarchy.

some pointers:




Ciprian Teodorov

On Sep 26, 2012 6:16 PM, "Vanessa Peña Araya" <van.c.pena at gmail.com> wrote:

> Thank you, Ben. And yes, this is the kind of things that are very useful.
>  3. Electrical Software Development Platform - CRITICAL priority
>> Of course, my own project to complete my masters within the next couple
>> of months!! This is implementing a model browser for the IEC 61970 Common
>> Information Model.  I showed this to Alex a while ago and am just now
>> getting back to the point I was at before switching from Mondrian to
>> Roassal.  While this has taken a while I am very happy with the additional
>> control I have with Roassal (and a lot of this time has been too many
>> demands by my day job). Perhaps a rough early release is not too far away.
> I'm sorry but I don't know this, so I don't understand really. Is there
> some place I can see it?
> As yes, the features you mentioned are interesting. You are not the first
> to mention features 4, for example.
> Thank you very much :)
> Vanessa.
>> Alexandre Bergel wrote:
>>> This is not that we do not have ideas :-)
>>> Our todo list includes:
>>>   - book chapter on Roassal
>>>   - exporters (e.g., HTML, SVG, JavaScript)
>>>   - semantic zooming
>>>   - way to compose shapes
>>>   - scalability
>>> We obtained this list from our personal needs and the need of the Moose
>>> and VW communities.
>>> Vanessa is working on a proposal for ESUG to help us on the development
>>> of Roassal. We are therefore surveying the Pharo community in case of there
>>> is a wished feature that we did not see or did not put high on our
>>> todolist. We are currently maintaining Roassal (i.e., fixing bugs) and
>>> pursuing our innovation effort (i.e., implementing cool ideas). The ESUG
>>> support will help us increase our productivity.
>>> And yes, we would love to see someone use Roassal to visualize genome,
>>> DNA and other biological data. We are ready to provide a strong support.
>>> Cheers,
>>> Alexandre
>>> On Sep 25, 2012, at 12:33 PM, Hernán Morales Durand <
>>> hernan.morales at gmail.com> wrote:
>>>  I don't know your project scope, but these pointers may help you to
>>>> grab some features to implement:
>>>> http://www.tm4.org/mev/**features <http://www.tm4.org/mev/features>
>>>> Also take a look into the Circular Genome Viewer:
>>>> http://wishart.biology.**ualberta.ca/cgview/gallery.**html<http://wishart.biology.ualberta.ca/cgview/gallery.html>
>>>> specially the browsable maps
>>>> http://wishart.biology.**ualberta.ca/BacMap/cgview_**
>>>> linked_maps/NC_003198/index.**html<http://wishart.biology.ualberta.ca/BacMap/cgview_linked_maps/NC_003198/index.html>
>>>> check out the Expand+ and Rotate+ operations
>>>> Other very nice engine is Circos
>>>> http://circos.ca/
>>>> which contains plots that has been published in Science, Nature and
>>>> PLOS.
>>>> Cheers,
>>>> Hernán
>>>> On 25/09/2012 11:48, Vanessa Peña Araya wrote:
>>>>> Hello!
>>>>> As you probably know, Roassal was presented at ESUG. We received a lot
>>>>> of positive feedback from you and also a lot of request for features.
>>>>> Thank you very much!
>>>>> We want to start working on this, but also prioritize what seems to be
>>>>> more urgent.
>>>>> For this, we would like to survey the community about
>>>>>  1 - what are the features you would like to see in Roassal. Please,
>>>>> provide a list of features requests and tell us about their priority
>>>>>  2 - scenarios where you would like to use Roassal.
>>>>> Thank you very much,
>>>>> Vanessa.
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