May 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] A Logo Proposal for Smalltalk

by Thierry Goubier

Hi Richard, 2017-05-02 12:57 GMT+02:00 horrido <horrido.hobbies(a)gmail.com>: > I have A Logo Proposal for Smalltalk > <https://medium.com/@richardeng/a-logo-proposal-for-smalltalk-e78180f3ec02 > > > I like it. > . But there is one huge (insurmountable?) obstacle. > > If you refer to a standard 'org' that would force the use / change of a logo, then I see no obstacle. I like it that the multiple shapes Smalltalk has have left space for creativity and freedom. If your logo is nice and creative enough, and that it can be freely used, then it will raise through the community and replace / displace the old one. Regards, Thierry > > > -- > View this message in context: http://forum.world.st/A-Logo- > Proposal-for-Smalltalk-tp4945122.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

May 2, 2017

A Logo Proposal for Smalltalk

by horrido

I have A Logo Proposal for Smalltalk <https://medium.com/@richardeng/a-logo-proposal-for-smalltalk-e78180f3ec02> . But there is one huge (insurmountable?) obstacle. -- View this message in context: http://forum.world.st/A-Logo-Proposal-for-Smalltalk-tp4945122.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

May 2, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Stephane Ducasse

Indeed we were not connected. Sorry too many things to do. On Mon, May 1, 2017 at 5:55 PM, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Hi Doru, > > Thanks for asking. I think it went well, but not many participated in the > sprint. > We had 3 users of the App, and frankly, it is a real added value I believe. > > But maybe Juraj can say more... > > Cheers, > Alexandre > > > > On May 1, 2017, at 3:17 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > > > Unfortunately, I could not participate. How did it go with the App? > > > > Cheers, > > Doru > > > > > >> On Apr 27, 2017, at 10:25 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> > wrote: > >> > >> Hi, > >> > >> Marcus and I have updated the contribute page: > http://pharo.org/contribute-events > >> And I have just released Pharo Sprint App version 0.2.0: > http://bit.ly/PharoSprintApp (Discord sprint channel includes the link) > >> To run it, you need Pharo 6.0 VM > >> > >> Thanks everyone for the early feedback. I was able to include some of > them to the release. > >> > >> Have a fun. I will join you at 9:00 UTC-4 time. > >> Juraj > >> > >>> On Apr 27, 2017, at 11:03, Luc Fabresse <luc.fabresse(a)gmail.com> > wrote: > >>> > >>> Nice Juraj! ;-) > >> > >> Thanks Luc :-) > >> > >>> > >>> #Luc > >>> > >>> 2017-04-24 20:51 GMT+02:00 K K Subbu <kksubbu.ml(a)gmail.com>: > >>> On Monday 24 April 2017 08:00 PM, Juraj Kubelka wrote: > >>> > >>> Please, can you send me a screenshot? Or submit the screenshot > >>> here https://github.com/JurajKubelka/PharoSprint/issues/new > >>> > >>> Done. I think the error appears because when a login fails, the > message causes a horiz scroll bar to be added to the panel pushing the > fields beyond the top edge. I stumbled on this error because I tried using > my fogbugz id whereas the login field needs the registered email id for > login. > >>> > >>> Regards .. Subbu > >>> > >>> > >> > > > > -- > > www.tudorgirba.com > > www.feenk.com > > > > "Every thing has its own flow." > > > > > > > > > > > > > > >

May 1, 2017

Re: [Pharo-users] improving audio/video quality of pharo days recordings

by Ben Coman

I've been reading around this topic, and just picked out some good bits... The big question is, do you want presenters to be tethered? http://www.micreviews.com/guides/top-10-best-wireless-microphones But wireless can have problems... http://www.instructables.com/id/Problems-with-Wireless- Microphones-And-How-To-Fix-/ https://www.quora.com/Whats-the-best-affordable-audio- video-setup-for-filming-conferences-and-events So an alternative can be to use a pocket recorder and mix the audio in later... https://www.youtube.com/watch?v=nITukcOL44M https://www.youtube.com/watch?v=NgAVcHGMGiA Screen capture can be via any software. Make sure it can also capture audio so everything can be synchronised later. This looks like an interesting option... https://obsproject.com/ cheers -ben On Fri, Apr 28, 2017 at 6:58 PM, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Ok we will have a mic now I do not know how to record it. > > > On Thu, Apr 27, 2017 at 5:18 AM, Sean P. DeNigris <sean(a)clipperadams.com> > wrote: > >> Peter Uhnak wrote >> > clip-on microphone >> >> Yes! Even a cheap lapel mic like the Sony ECM-CS3 would make a world of >> difference >> >> >> >> ----- >> Cheers, >> Sean >> -- >> View this message in context: http://forum.world.st/improvin >> g-audio-video-quality-of-pharo-days-recordings-tp4944070p4944334.html >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >

May 1, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Alexandre Bergel

Hi Doru, Thanks for asking. I think it went well, but not many participated in the sprint. We had 3 users of the App, and frankly, it is a real added value I believe. But maybe Juraj can say more... Cheers, Alexandre > On May 1, 2017, at 3:17 AM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > Unfortunately, I could not participate. How did it go with the App? > > Cheers, > Doru > > >> On Apr 27, 2017, at 10:25 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >> >> Hi, >> >> Marcus and I have updated the contribute page: http://pharo.org/contribute-events >> And I have just released Pharo Sprint App version 0.2.0: http://bit.ly/PharoSprintApp (Discord sprint channel includes the link) >> To run it, you need Pharo 6.0 VM >> >> Thanks everyone for the early feedback. I was able to include some of them to the release. >> >> Have a fun. I will join you at 9:00 UTC-4 time. >> Juraj >> >>> On Apr 27, 2017, at 11:03, Luc Fabresse <luc.fabresse(a)gmail.com> wrote: >>> >>> Nice Juraj! ;-) >> >> Thanks Luc :-) >> >>> >>> #Luc >>> >>> 2017-04-24 20:51 GMT+02:00 K K Subbu <kksubbu.ml(a)gmail.com>: >>> On Monday 24 April 2017 08:00 PM, Juraj Kubelka wrote: >>> >>> Please, can you send me a screenshot? Or submit the screenshot >>> here https://github.com/JurajKubelka/PharoSprint/issues/new >>> >>> Done. I think the error appears because when a login fails, the message causes a horiz scroll bar to be added to the panel pushing the fields beyond the top edge. I stumbled on this error because I tried using my fogbugz id whereas the login field needs the registered email id for login. >>> >>> Regards .. Subbu >>> >>> >> > > -- > www.tudorgirba.com > www.feenk.com > > "Every thing has its own flow." > > > > > >

May 1, 2017

Re: [Pharo-users] Geocoder Services in Pharo?

by Stephane Ducasse

Ok I will let you know when the template is ready. Right now I'm trying to see and I will talk with damien. On Mon, May 1, 2017 at 3:25 PM, HernÃ¡n Morales Durand < hernan.morales(a)gmail.com> wrote: > > Yes Stef, it would be really cool for Territorial to be included there. > Cheers, > > HernÃ¡n > > > 2017-05-01 6:02 GMT-03:00 Stephane Ducasse <stepharo.self(a)gmail.com>: > >> - sven reddit >> - Smacc doc >> - Glorp >> - Magritte >> >> We will have a nice look and make sure that people can print them in >> spiral format. >> if you want Territorial to be in let me know. >> >> On Mon, May 1, 2017 at 11:01 AM, Stephane Ducasse < >> stepharo.self(a)gmail.com> wrote: >> >>> Hi hernan >>> >>> I'm starting a booklet collection for Pharo. I should shape the web site >>> and I'm working like a mad producing the first items: >>> >>> >>> On Mon, May 1, 2017 at 10:36 AM, volkert <volkert(a)nivoba.de> wrote: >>> >>>> Dear HernÃ¡n, >>>> >>>> cool, really nice work. will have a closer look :-) >>>> >>>> It really is too bad, that it is so hard to find such cool packages. i >>>> im really missing a kind currated list of all the cool pharo packages >>>> around. somthing like awesome python, f.e. >>>> "https://github.com/vinta/awesome-python" >>>> <https://github.com/vinta/awesome-python> >>>> BW, >>>> Volkert >>>> PS: Btw, loading the OSM support package failed (following the >>>> instruction on Page 45 of your docu). >>>> >>>> >>>> Am 01.05.2017 um 06:18 schrieb HernÃ¡n Morales Durand: >>>> >>>> Hi Volkert >>>> >>>> Territorial (https://github.com/hernanmd/Territorial) is a library >>>> for geographical information retrieval. GADM is included in Territorial but >>>> is mainly for boundaries. The feature you ask for is not there yet, but if >>>> you want to try out other features or look for integration you can install >>>> it by doing: >>>> >>>> Metacello new >>>> smalltalkhubUser: âhernanâ project: âTerritorialâ; >>>> configuration: âTerritorialâ; >>>> version: #âdevelopmentâ; >>>> load. >>>> >>>> Cheers, >>>> >>>> HernÃ¡n >>>> >>>> >>>> >>>> >>>> 2017-04-30 5:17 GMT-03:00 volkert <volkert(a)nivoba.de>: >>>> >>>>> of course :-) >>>>> >>>>> yes, i am trying to load the package GADM in Pharo 5, but it failed >>>>> ... :-( >>>>> >>>>> Volkert >>>>> >>>>> Am 30.04.2017 um 09:57 schrieb Stephane Ducasse: >>>>> >>>>> volkert >>>>> >>>>> Then what would be good is to code it as open-source so that people >>>>> can join effort. >>>>> Did you check the packages of geolocalisation developed by Hernan >>>>> Morales? >>>>> Stef >>>>> >>>>> On Sat, Apr 29, 2017 at 4:18 PM, volkert <volkert(a)nivoba.de> wrote: >>>>> >>>>>> Hi Sven, >>>>>> >>>>>> thanks for your fast response and the snippets. I scanned the >>>>>> different geocoder classes from "geopy" and also the OSM Nominatim docs. >>>>>> Indeed, it is not hard, ..... but if there is already a package, why not >>>>>> using it :-) >>>>>> >>>>>> maybe i start to write such a lib. >>>>>> >>>>>> Thanks, >>>>>> Volkert >>>>>> >>>>>> >>>>>> Am 29.04.2017 um 15:54 schrieb Sven Van Caekenberghe: >>>>>> >>>>>>> Hi Volkert, >>>>>>> >>>>>>> On 29 Apr 2017, at 15:01, volkert <volkert(a)nivoba.de> wrote: >>>>>>>> >>>>>>>> Dear all, >>>>>>>> >>>>>>>> do we have a package to access the a geocoder service? Something >>>>>>>> similar to "geopy". >>>>>>>> >>>>>>>> Volkert >>>>>>>> >>>>>>> As far as I know there is no such library. >>>>>>> >>>>>>> We have it internally, but that part is not open source. But it is >>>>>>> not so hard to do yourself. >>>>>>> >>>>>>> Here is an example for forward geocoding (address -> coordinates): >>>>>>> >>>>>>> ZnClient new >>>>>>> url: 'http://nominatim.openstreetmap.org/search'; >>>>>>> queryAt: #format put: 'json'; >>>>>>> queryAt: #addressdetails put: '1'; >>>>>>> queryAt: #q put: 'Villerspark 5, 3500 Hasselt'; >>>>>>> queryAt: #countrycodes put: 'be'; >>>>>>> accept: ZnMimeType applicationJson; >>>>>>> contentReader: [ :entity | STONJSON fromString: entity >>>>>>> contents ]; >>>>>>> get. >>>>>>> >>>>>>> Here is an example for reverse geocoding (coordinates -> address): >>>>>>> >>>>>>> ZnClient new >>>>>>> url: 'http://nominatim.openstreetmap.org/reverse'; >>>>>>> queryAt: #format put: 'json'; >>>>>>> queryAt: #lon put: 5.33732 asString; >>>>>>> queryAt: #lat put: 50.926 asString; >>>>>>> accept: ZnMimeType applicationJson; >>>>>>> contentReader: [ :entity | STONJSON fromString: entity >>>>>>> contents ]; >>>>>>> get. >>>>>>> >>>>>>> These are against the OpenStreetMap Nomatim service, others are >>>>>>> similar. >>>>>>> >>>>>>> HTH, >>>>>>> >>>>>>> Sven >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>> >> >

May 1, 2017

Re: [Pharo-users] Geocoder Services in Pharo?

by HernÃ¡n Morales Durand

Yes Stef, it would be really cool for Territorial to be included there. Cheers, HernÃ¡n 2017-05-01 6:02 GMT-03:00 Stephane Ducasse <stepharo.self(a)gmail.com>: > - sven reddit > - Smacc doc > - Glorp > - Magritte > > We will have a nice look and make sure that people can print them in > spiral format. > if you want Territorial to be in let me know. > > On Mon, May 1, 2017 at 11:01 AM, Stephane Ducasse <stepharo.self(a)gmail.com > > wrote: > >> Hi hernan >> >> I'm starting a booklet collection for Pharo. I should shape the web site >> and I'm working like a mad producing the first items: >> >> >> On Mon, May 1, 2017 at 10:36 AM, volkert <volkert(a)nivoba.de> wrote: >> >>> Dear HernÃ¡n, >>> >>> cool, really nice work. will have a closer look :-) >>> >>> It really is too bad, that it is so hard to find such cool packages. i >>> im really missing a kind currated list of all the cool pharo packages >>> around. somthing like awesome python, f.e. >>> "https://github.com/vinta/awesome-python" >>> <https://github.com/vinta/awesome-python> >>> BW, >>> Volkert >>> PS: Btw, loading the OSM support package failed (following the >>> instruction on Page 45 of your docu). >>> >>> >>> Am 01.05.2017 um 06:18 schrieb HernÃ¡n Morales Durand: >>> >>> Hi Volkert >>> >>> Territorial (https://github.com/hernanmd/Territorial) is a library for >>> geographical information retrieval. GADM is included in Territorial but is >>> mainly for boundaries. The feature you ask for is not there yet, but if you >>> want to try out other features or look for integration you can install it >>> by doing: >>> >>> Metacello new >>> smalltalkhubUser: âhernanâ project: âTerritorialâ; >>> configuration: âTerritorialâ; >>> version: #âdevelopmentâ; >>> load. >>> >>> Cheers, >>> >>> HernÃ¡n >>> >>> >>> >>> >>> 2017-04-30 5:17 GMT-03:00 volkert <volkert(a)nivoba.de>: >>> >>>> of course :-) >>>> >>>> yes, i am trying to load the package GADM in Pharo 5, but it failed >>>> ... :-( >>>> >>>> Volkert >>>> >>>> Am 30.04.2017 um 09:57 schrieb Stephane Ducasse: >>>> >>>> volkert >>>> >>>> Then what would be good is to code it as open-source so that people can >>>> join effort. >>>> Did you check the packages of geolocalisation developed by Hernan >>>> Morales? >>>> Stef >>>> >>>> On Sat, Apr 29, 2017 at 4:18 PM, volkert <volkert(a)nivoba.de> wrote: >>>> >>>>> Hi Sven, >>>>> >>>>> thanks for your fast response and the snippets. I scanned the >>>>> different geocoder classes from "geopy" and also the OSM Nominatim docs. >>>>> Indeed, it is not hard, ..... but if there is already a package, why not >>>>> using it :-) >>>>> >>>>> maybe i start to write such a lib. >>>>> >>>>> Thanks, >>>>> Volkert >>>>> >>>>> >>>>> Am 29.04.2017 um 15:54 schrieb Sven Van Caekenberghe: >>>>> >>>>>> Hi Volkert, >>>>>> >>>>>> On 29 Apr 2017, at 15:01, volkert <volkert(a)nivoba.de> wrote: >>>>>>> >>>>>>> Dear all, >>>>>>> >>>>>>> do we have a package to access the a geocoder service? Something >>>>>>> similar to "geopy". >>>>>>> >>>>>>> Volkert >>>>>>> >>>>>> As far as I know there is no such library. >>>>>> >>>>>> We have it internally, but that part is not open source. But it is >>>>>> not so hard to do yourself. >>>>>> >>>>>> Here is an example for forward geocoding (address -> coordinates): >>>>>> >>>>>> ZnClient new >>>>>> url: 'http://nominatim.openstreetmap.org/search'; >>>>>> queryAt: #format put: 'json'; >>>>>> queryAt: #addressdetails put: '1'; >>>>>> queryAt: #q put: 'Villerspark 5, 3500 Hasselt'; >>>>>> queryAt: #countrycodes put: 'be'; >>>>>> accept: ZnMimeType applicationJson; >>>>>> contentReader: [ :entity | STONJSON fromString: entity >>>>>> contents ]; >>>>>> get. >>>>>> >>>>>> Here is an example for reverse geocoding (coordinates -> address): >>>>>> >>>>>> ZnClient new >>>>>> url: 'http://nominatim.openstreetmap.org/reverse'; >>>>>> queryAt: #format put: 'json'; >>>>>> queryAt: #lon put: 5.33732 asString; >>>>>> queryAt: #lat put: 50.926 asString; >>>>>> accept: ZnMimeType applicationJson; >>>>>> contentReader: [ :entity | STONJSON fromString: entity >>>>>> contents ]; >>>>>> get. >>>>>> >>>>>> These are against the OpenStreetMap Nomatim service, others are >>>>>> similar. >>>>>> >>>>>> HTH, >>>>>> >>>>>> Sven >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>> >>>> >>> >>> >> >

May 1, 2017

Re: [Pharo-users] Process scheduling

by Ben Coman

On Mon, May 1, 2017 at 4:42 AM, <raffaello.giulietti(a)lifeware.ch> wrote: > On 30/04/17 17:01, Ben Coman wrote: > > > > > > On Sun, Apr 30, 2017 at 10:11 PM, <raffaello.giulietti(a)lifeware.ch > > <mailto:raffaello.giulietti@lifeware.ch>> wrote: > > > > Hi, > > > > I can't find a description on how ProcessorScheduler in Pharo (i.e., > > Cog) is supposed to do context switches in absence of other > > synchronization points. > > > > Is it following the BlueBook spec? Just to recall that model, the VM, > > when about to execute the current bytecode instruction of the current > > Process, checks whether a strictly higher priority Process is ready > to > > run and if so, switches to (one of) the highest priority among them. > > > > Thanks in advance for clarifications. > > > > > > This topic is probably a bit advanced pharo-users list. > > You'll likely get better answers in vm-dev list of pharo-dev list. > > Can you post any follow ups there? > > > > ProcessScheduler doesn't have much to do with context switching, > > except providing the #yield primitive for a user to invoke manually. > > As you noted, the actual context switching happens in the VM. > > > > The charts here [1] might be useful to get an overview of the execution > > loop. > > Keep in mind though Its a very rough view of a novice exploring the Cog > > execution engine > > and may not be entirely accurate. But it will give you a starting point. > > > > For another example, look at > > CoInterpreterPrimitives>>primitiveEnterCriticalSection > > in VMMaker (http://source.squeak.org/VMMaker) > > > > cheers -ben > > Hi Ben, > > of course, I can post the question on the pharo-dev mailing list and > certainly will if nobody on this one can answer my question. > > However, Process is a Pharo user level class, I was responding to your literal question about ProcessScheduler and what part of the system does the context switching. Now I'm guessing your interest is more about user-level multi-threaded behaviour of Processes, so I hunted down some discussions you may find be interesting * http://forum.world.st/The-Trunk-Kernel-mt-1009-mcz-td4887889.html (search for preemptionYields) * http://forum.world.st/threading-in-Pharo-td4750534.html * http://forum.world.st/threading-in-Pharo-td4750534.html * http://forum.world.st/VM-Maker-VMMaker-oscog-eem-942-mcz-td4790993.html However I didn't quite follow where you said... "in absence of other synchronization points." Do you mean without suspend/resuming Processes or waiting/signalling Semaphore and something else? I'm not sure if this is what your looking for, but in summary... Processes at the same priority are scheduled cooperatively. they must deliberately yield or sleep to be put at the back of their priority's run-queue.before another process of same priority can run. Higher priority processes pre-empt lower priority processes only when they are woken (i.e. signalled or resumed). The pre-empted process stays at the front of its priority's run-queue so that the higher-priority-preemption is transparent to the same-priority-cooperative scheduling. not something private to > the implementation of the vm. Any programmer should know what to expect > and what to not expect when different Processes are started, and how > they behave and interact. It's part of the general knowledge of the > Smalltalk programming model, on par with Object, Class and Behavior. > So, before I switch to the pharo-dev list, let's wait and see... > > BTW, it seems that reference [1], containing the charts you mention, > could not find its way in your reply. Can you please make it available? > > Whoops. [1] http://forum.world.st/CogVM-Execution-Flow-td4900675.html#a4900676 -------------------- Now a follow up question of my own, for [pharo-dev]. The Process comment says "When any one of several paths of control can be advanced, the single instance of ProcessorScheduler named Processor **determines** which one will actually be advanced partly using the value of priority." Did I misunderstand how this works? I thought determination of which process next ran occurred in the VM by StackInterpreter>>wakeHighestPriority and ProcessorScheduler seems more a place to just get values associated scheduling. cheers -ben

May 1, 2017

What is flags in UpdateOperation in MongoTalk

by chrismihaylyk

Hello! Can anyone explain to me, please, what is it flags in the following method of MongoDatabase class? update: origDictionary with: newDictionary collection: aString flags: aFlag root update: origDictionary with: newDictionary collection: name , '.' , aString flags: aFlag Thanks, Khrystyna. -- View this message in context: http://forum.world.st/What-is-flags-in-UpdateOperation-in-MongoTalk-tp49450… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

May 1, 2017

Re: [Pharo-users] PMMatrix vs Matrix

by Stephane Ducasse

I have been working on Grid in the context of the Container library. Now Array2d was the previous name of Matrix so let us keep it simple. On Mon, May 1, 2017 at 5:40 AM, Ben Coman <btc(a)openinworld.com> wrote: > > > On Mon, Apr 24, 2017 at 8:15 PM, Serge Stinckwich < > serge.stinckwich(a)gmail.com> wrote: > >> Yes this what I was going to answer as well. Matrix in Pharo does not >> implement the usual mathematical operators like PMMatrix. >> Maybe should be rename as Array2D in order to avoid confusion in the >> future. >> > > What about "Table" as an alternative? > > cheers -ben > > >> Regards, >> >> On Mon, Apr 24, 2017 at 1:54 PM, Stephane Ducasse >> <stepharo.self(a)gmail.com> wrote: >> > the matrix class is not really a matrix more a 2dArray >> > no eigen values and the rest >> > >> > stef >> > >> > On Mon, Apr 24, 2017 at 12:04 PM, frankl1_miky < >> mike1corporation(a)gmail.com> >> > wrote: >> >> >> >> Hi, >> >> Polymath come with PMMatrix class . what is the difference between >> this >> >> class and the native Matrix class. >> >> >> >> >> >> >> >> -- >> >> View this message in context: >> >> http://forum.world.st/PMMatrix-vs-Matrix-tp4943819.html >> >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >> > >> >> >> >> -- >> Serge Stinckwich >> UCN & UMI UMMISCO 209 (IRD/UPMC) >> Every DSL ends up being Smalltalk >> http://www.doesnotunderstand.org/ >> >> >

May 1, 2017