May 2013 - Pharo-users - lists.pharo.org

test
by DeNigris Sean May 13, 2013

May 13, 2013

please ignore

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pharo-users Mailinglist moved
by Marcus Denker May 13, 2013

May 13, 2013

Hi, As the old setup stopped working last week, we decided to move the mailing list to a new server. New Address: pharo-users(a)lists.pharo.org Web: http://lists.pharo.org/mailman/listinfo/pharo-users_lists.pharo.org -> digest option is preserverd -> others we will fix by hand later this morning (or you can do it yourself now We unsubscribed all users with the "Nomail" option set before retrieving the list of users. Marcus

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Welcome to our new mailing list
by StÃ©phane Ducasse May 13, 2013

May 13, 2013

Hello Pharoers We are moving to a new and much stable mailing-list. Sorry for the inconvenience. Stef

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Sockstream vs ZnSocketStream
by Luc Fabresse May 11, 2013

May 11, 2013

Hi all, I am *experimenting* with the replacement of the current network layer with OCEAN. My current plan is to make Zinc tests green while working on the top of OCEAN. And investigate the removal of all the current Network classes (does it play?). After looking at Zinc code, there are few dependencies. Basically, I implemented an OCNSOcketStream (inheriting from SocketStream) and redefined some methods of ZnNetworkingUtils. It seems to play so far (green tests). But then, I discovered that Zodiac introduces a new SocketStream hierarchy (ZdcAbstractSocketStream). Now remember the mails of Sven. So my questions are: 1) Is the intent of ZdcSocketStream to be a future replacement for SocketStream? 2) why ZnNetworkingUtils>>initialize makes use of SocketStream instead of ZdcSocketStream? why the code isn't something like that: ZnNetworkingUtils>>initialize super initialize. self socketStreamClass: (Smalltalk globals at: #ZdcSocketStream ifAbsent: [ SocketStream ]) . self secureSocketStreamClass: (Smalltalk globals at: #ZdcSecureSocketStream ifAbsent: [ nil ]) Moreover, I guess that ZdcSocketStream should speed up things (it says optimized version in the name of the superclass ;-)). So probably, my OCNSOcketStream should better inherit from ZdcSocketStream. Thanks for giving me some light here, Luc

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[ANN] ConfigurationOfOpenDBXDriver in MetaRepoForPharo20
by Guillermo Polito May 8, 2013

May 8, 2013

Hi! I just took some time to load and test opendbx in 2.0, with the latest fixes to be able to load ffi. The configuration stable version loads cleanly in Pharo 2.0 and the configuration is available in the configuration browser. I'll continue with Glorp & friends following :) Guille

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"Modern" mathematics with Morphic
by Alain Busser May 7, 2013

May 7, 2013

Hi, when I was a child the times were to what was called "modern mathematics". It was quite strange, and we children had to draw Venn diagrams around pentagons (amongst other polygons) or the like. Now modern mathematics have become quite ancient (much like me) and everybody forgot about these "patatoids" (that's how we used to call them in french). Yet nowadays with tablets, exercises can be designed where, instead of drawing a Venn diagram *around* pentagons, the pupil could *move* the pentagons *inside* their Venn diagram (for a linguistic example, imagine moving the letters here: http://en.wikipedia.org/wiki/File:Venn_diagram_gr_la_ru.svg) These exercises where the pupil is to categorize objects or concepts, would be useful also in biology or grammar, if only... Well, ahem, I found out how to devise such exercises in JavaScript with jQuery UI (just declare any element as "draggable", then the sets as "droppable"). But I found out that it seems easy to drop a Morph (element) to another one (set), then make some set theory with "serious games". After all, that's what is shown in "Pharo by example" (drag and drop, and devise one's own method as to what can be dropped or not). Hence my question: Am I the first "genius" to think about this (doubtful) or (more probably) who did already this kind of exercises about set theory? Maybe in Etoys? Maybe not in mathematics but linguistics or other? A short bibliography on the subject: *http://www.cut-the-knot.org/LewisCarroll/tridiagram.shtml (was actually sold in wood with checkers pieces and an instruction book) * http://www.college-de-france.fr/site/stanislas-dehaene/course-2013-01-29-09… the baby learns to speak: There is classification to grasp vocabulary) * http://www.college-de-france.fr/site/stanislas-dehaene/course-2013-02-12-09… following: The baby uses bayesian inference to solve these kind of problems). If I understand well, the minimum age to play to these games is, after Dehaene, 6 months (!) Alain

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[ANN] RFB for pharo 2.0
by Norbert Hartl May 7, 2013

May 7, 2013

I moved the sources for RFB from Lukas' site to smalltalkhub http://smalltalkhub.com/#!/~PharoExtras/RFB/ I also copied the ConfigurationOfRFB from MetacelloRepository to smalltalkhub. There I applied the changes for RFB to be runnable in pharo 2.0. To load it use Gofer it smalltalkhubUser: 'PharoExtras' project: 'RFB'; configuration; load. (Smalltalk at: #ConfigurationOfRFB) load Norbert

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Re: [Pharo-users] [ANN] BabyMock 1.0
by Paul Davidowitz May 6, 2013

May 6, 2013

I think this could be a problem with SmalltalkHub in general, but http://smalltalkhub.com/#!/~zeroflag/BabyMock does not load in InternetExplorer -- it just hangs with 'Loading...' in upper right -- but it does work fine in Chrome, Firefox, and Opera browsers.

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Kinematic Templates implemented in Pharo
by Carla F. Griggio May 6, 2013

May 6, 2013

Hello! Some months ago GermÃ¡n Leiva and I did a project for the course "Introduction to Human Computer Interaction" at UniversitÃ© Paris-Sud where we had to implement an interaction technique, and we chose to implement Kinematic Templates in Pharo (or well, at least a little prototype). Maybe it's useful for somebody, so here's some info :) The Kinematic Templates interaction technique suggests adjusting the user's mouse input to it tends to match a drawing template. That allows the user to draw in free-hand mode and obtain a "beautified" version of it's hand drawing. You can watch the original Kinematic Templates demo<http://www.youtube.com/watch?v=5lseh9ghhJ4>and read the paper <http://dl.acm.org/citation.cfm?id=1449725>. This is a video of our implementation in Pharo<http://www.youtube.com/watch?v=p2AmU4nqnLw>. And here you have the report<https://docs.google.com/document/d/18gXYdhhPQlXUNGCqbEEBRgb2NRyKLgYcIeURoAQ…>that we handed in for our evaluation too, which can be useful as documentation. In the report you can find links to videos that show the progress of the project. BTW, it only works on MacOS, sorry for that :$ It's because we only dealt with the FFI calls to that OS in order to manipulate the mouse position. You can get the code from: http://ss3.gemstone.com/ss/KinematicTemplates To open the window for drawing with Kinematic Templates evaluate in a workspace: KinematicWindow openExample Cheers! Carla

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Re: [Pharo-users] Kinematic Templates implemented in Pharo
by Carla Florencia May 6, 2013

May 6, 2013

Oops, good point! As we handed in the image for our project I didn't realize that. I'll fix it later! Thanks Sent from my Windows Phone ------------------------------ From: Guillermo Polito Sent: 5/6/2013 10:15 AM To: A friendly place where any question about pharo is welcome Cc: GermÃ¡n Leiva Subject: Re: [Pharo-users] Kinematic Templates implemented in Pharo Hi Lider! The video is cooool :). Congratulations! Some feedback :). I could not use it :$. - I needed to download FFI first (and I did it and it loaded :), - and then it needed a lot of image files I do not have in my disk, so it explodes while loading the icons, and the background images of the templates... Maybe then can be packaged somewhere... Saludos! On Mon, May 6, 2013 at 3:00 AM, Carla F. Griggio <carla.griggio(a)gmail.com>wrote: > Hello! > Some months ago GermÃ¡n Leiva and I did a project for the course > "Introduction to Human Computer Interaction" at UniversitÃ© Paris-Sud where > we had to implement an interaction technique, and we chose to implement > Kinematic Templates in Pharo (or well, at least a little prototype). Maybe > it's useful for somebody, so here's some info :) > > The Kinematic Templates interaction technique suggests adjusting the > user's mouse input to it tends to match a drawing template. That allows the > user to draw in free-hand mode and obtain a "beautified" version of it's > hand drawing. You can watch the original Kinematic Templates demo<http://www.youtube.com/watch?v=5lseh9ghhJ4>and read > the paper <http://dl.acm.org/citation.cfm?id=1449725>. > > This is a video of our implementation in Pharo<http://www.youtube.com/watch?v=p2AmU4nqnLw>. > And here you have the report<https://docs.google.com/document/d/18gXYdhhPQlXUNGCqbEEBRgb2NRyKLgYcIeURoAQ…>that we handed in for our evaluation too, which can be useful as > documentation. In the report you can find links to videos that show the > progress of the project. > > BTW, it only works on MacOS, sorry for that :$ It's because we only dealt > with the FFI calls to that OS in order to manipulate the mouse position. > > You can get the code from: http://ss3.gemstone.com/ss/KinematicTemplates > > To open the window for drawing with Kinematic Templates evaluate in a > workspace: > > KinematicWindow openExample > > Cheers! > Carla > > > > >

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