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Re: [Pharo-users] Another post about our experience with Pharo at OSOCO

by Stephane Ducasse

Hi Rafael Thanks a lot for sharing that with us. This is super interesting to see the process. I wish you a lot of other Pharo microservices and systems :) Stef On Tue, Jan 2, 2018 at 3:30 PM, Rafael Luque <rafael.luque.leiva(a)gmail.com> wrote: > Not at the moment, but we have plans to release both the code generator and > the EDA framework shortly, so I will back to you when we publish them. > > Rafa. > > 2018-01-02 14:26 GMT+00:00 HernÃ¡n Morales Durand <hernan.morales(a)gmail.com>: >> >> Hi Rafael, >> >> Did you published your code generator somewhere? >> I would like to check since I am writing a code generator for Pharo >> http://www.smalltalkhub.com/#!/~hernan/CodeGenerator >> Cheers, >> >> HernÃ¡n >> >> 2018-01-02 8:48 GMT-03:00 Rafael Luque <rafael.luque.leiva(a)gmail.com>: >> > Hi all, >> > >> > We've published the second part of our experiences introducing Pharo at >> > OSOCO. >> > >> > The post is in spanish: >> > https://osoco.es/thoughts/2017/12/pharo-en-osoco-parte-2/ >> > >> > However, I've checked that Google Translate does a good job with it: >> > >> > https://translate.google.com/translate?sl=es&tl=en&js=y&prev=_t&hl=es&ie=UT… >> > >> > Cheers, >> > Rafael Luque >> > >> > >> > >> > >> >

Jan. 2, 2018

[ANN] PoLYgon file format parser/model

by Julien

Hello again, Last announcement for today. 1 year ago I created a PLY (PoLYgon file format [1] ) parser/model in Pharo [2] using PetitParser. I took some time to remove the dust it accumulated and to create a baseline so I announce it. To install it: Metacello new baseline: 'PLY'; repository: 'github://juliendelplanque/PLY/repository'; load. It has tests and an example of usage in the README. Regards, Julien Links: [1]: https://en.wikipedia.org/wiki/PLY_(file_format) <https://en.wikipedia.org/wiki/PLY_(file_format)> [2]: https://github.com/juliendelplanque/PLY <https://github.com/juliendelplanque/PLY> --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40

Jan. 2, 2018

Re: [Pharo-users] [ANN] Orientation

by Julien

> Le 2 janv. 2018 Ã 17:26, Henrik Sperre Johansen <henrik.s.johansen(a)veloxit.no> a Ã©crit : > > Julien wrote >> Hello, >> >> I developed a small framework to model orientation (north, east, south, >> west). It defines some common operations that can be done on such objects >> (turning, getting the opposite orientation, moving on n steps on a >> discrete grid from a given position following certain orientation, etcâ¦). >> Also, it supporte composed orientations (e.g. north-east). >> >> This is not a lot but it is tested and I think it does its job well. So if >> you need to model orientation, consider to use it. :-) >> >> If any ideas of what I could add to this API, Iâm interested. > > A special class for holding a set of Orientations with associated value(s) > <https://en.wikipedia.org/wiki/Wind_rose> could be a useful addition. > In addition to the orientations/data itself, such a set would benefit from > specifying both > - An interpolation method to use * > - An offset from physical orientation to set-local orientations. > > From my experience, the following can be bug-prone scenarios if the above > two are not part of such a model: > - Querying a dataset for orientations not part of the original set**. > Example: Your source data consists of 6 equally spaced data points, but in > use, values for 8 equally spaced orientations are queried. > - Representing/converting different types in a good way. > Example: You model some entity where North(0@1) in design, is WSW in > physical terms (presumably, because it makes the entity align more nicely > with x/y axis), but source datasets are received in terms of Physical > directions.*** > - Redefine logical north of datasets with a preexisting logical north, while > maintaining toPhysical(preRotDataset) = toPhysical(postRotDataset) **** > Example: The physical orientation of the entity should be rotated, and you > update the logical north to compensate, but the data should remain the same > wrt. physical orientations. > > Cheers, > Henry > > * Both for converting to a different set of orientations, and when queried > for the value of a non-specified orientation > ** With an interpolation method specified, you have the choice of tradeoff > between speed (convert internal set to queried orientation, direct lookup), > and adherence to original data set (keep internal set, interpolate each > query) > *** And avoiding physical -> model local orientation translation on each > query can be nice, performance-wise > **** Obviously, this is only troublesome if one does convert physical -> > model local orientations > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > It looks like a big additionâ¦ :-) Iâll open an issue on the GitHub in case someone has some time to implement it (I may not do it myself since I do not need this feature for now). Thanks for the idea. Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40

Jan. 2, 2018

Re: [Pharo-users] Metacello with Git

by Stephane Ducasse

Hi Alistair About pillar, we are working on a new pipeline and lot of cleaning compared to the version available on smalltalkhub. The new version Branch new pipeline seems broken (I will check it tomorrow it cannot handle internal references). I want to be able to build the old books with the new version. Now it is not working. Stef On Tue, Jan 2, 2018 at 6:08 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: > Hi Sean, > > On 2 January 2018 at 18:00, Sean P. DeNigris <sean(a)clipperadams.com> wrote: >> EstebanLM wrote >>> if you have iceberg metacello integration enabledâ¦ Then it works on >>> baselines, etc. >> >> Strange. I did `Iceberg enableMetacelloIntegration: true.` first and still >> got the error. I can't easily test in 7 because it depends on Magritte which >> depends on Grease which doesn't seem to load yet. Maybe I can cobble >> together a simpler test case. > > This may not help, but... > > Pharo 7.0 > Build information: > Pharo-7.0+alpha.build.398.sha.52a28a857deec25612d302aba8ab09bdd6212b31 > (32 Bit) > > I have Pillar loaded, which in turn loads: > > ConfigurationOfMagritte3-topa.126 > Magritte-Model-SeanDeNigris.465 > Magritte-Morph-SeanDeNigris.95 > Magritte-Pharo3-Model-JohnCBorden.4 > ConfigurationOfGrease-StephanEggermont.348 > Grease-Core-JohanBrichau.97 > Grease-Pharo30-Core-PavelKrivanek.22 > > The image was built about 4 days ago. > > HTH, > Alistair > > > >> The Git error I mentioned in my OP was caused because `LGitRepository >> >> clone:options:to:` is trying to clone >> 'git@bitbucket.org:nDeNigris/Quote-Me.git' based on >> `gitlab://SeanDeNigris/Quote-Me:master/repository` from the baseline spec. >> Earlier in the stack, `IceProviderRepositoryType >> mcRepository` is using >> `MCBitbucketRepository` which is hardcoded. >> >> All of the above is with iceberg metacello integration enabled. >> >> >> >> ----- >> Cheers, >> Sean >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >

Jan. 2, 2018

Examples of Garage for DB2

by Andrei Stebakov

I need to be able to navigate DB2 connection. As we discussed it a few days ago on the mailing list, the suggestion was to use Garage. I downloaded Garage to my Pharo 6.1 on windows. But in Garage I only see drivers for MySql, Postgres and Sqlite3. Does it mean that for DB2 I should look somewhere else or there is a way to create a connection for DB2 using existing Garage functionality? If there is a way, could you send some example? Thanks! Andrei

Jan. 2, 2018

Re: [Pharo-users] [ANN] Orientation

by Stephane Ducasse

Julien can you remind me to show you what Laura/Maximilliano did in MetaBorg? Stef On Mon, Jan 1, 2018 at 10:27 PM, Julien <julien.delplanque(a)inria.fr> wrote: > Hello, > > I developed a small framework to model orientation (north, east, south, > west). It defines some common operations that can be done on such objects > (turning, getting the opposite orientation, moving on n steps on a discrete > grid from a given position following certain orientation, etcâ¦). Also, it > supporte composed orientations (e.g. north-east). More details on GitHub > [1]. > > To install it: > > Metacello new > baseline: 'Orientation'; > repository: 'github://juliendelplanque/Orientation/repository'; > load > > This is not a lot but it is tested and I think it does its job well. So if > you need to model orientation, consider to use it. :-) > > If any ideas of what I could add to this API, Iâm interested. > > Regards, > > Julien > > [1]: https://github.com/juliendelplanque/Orientation > > --- > Julien Delplanque > Doctorant Ã lâUniversitÃ© de Lille 1 > http://juliendelplanque.be/phd.html > Equipe Rmod, Inria > BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq > NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40 >

Jan. 2, 2018

Solver for the Stable Marriage problem in Pharo

by Julien

Hello, Continuing to announce what I have. Some time ago I implemented a solver for the Stable Marriage problem [1] in Pharo [2]. Basically, in the stable marriage problem, you have two list of n element: a list of men and a list of women. Each person rank people of the other gender according to its preferences. The stable marriage algorithm find the best matches between men and women according to all rankings. It can be installed using: Metacello new baseline: 'StableMarriage'; repository: 'github://juliendelplanque/StableMarriage/repository'; load Regards, Julien --- Julien Delplanque Doctorant Ã lâUniversitÃ© de Lille 1 http://juliendelplanque.be/phd.html Equipe Rmod, Inria BÃ¢timent B 40, avenue Halley 59650 Villeneuve d'Ascq NumÃ©ro de tÃ©lÃ©phone: +333 59 35 86 40

Jan. 2, 2018

Re: [Pharo-users] Is there a way to stop arrays sorting automatically?

by Andy Burnett

Henry said >>>> It's not broken, but certainly deserves a comment as to why it operates inline; In the general case, one should not use/care about any given permutation outside the block. Allocating n! instances of an n-sized array by default, is a bad tradeoff considering performance degradation for uses where n >> 3. In the first case, a user can add a simple #copy, while in the second case, a user would probably want/have to reimplement the method entirely. <<< Thanks, that makes perfect sense. I will have a go at adding a suitable comment. Cheers Andy >

Jan. 2, 2018

Re: [Pharo-users] Metacello with Git

by Esteban Lorenzano

> On 2 Jan 2018, at 18:00, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > > EstebanLM wrote >> if you have iceberg metacello integration enabledâ¦ Then it works on >> baselines, etc. > > Strange. I did `Iceberg enableMetacelloIntegration: true.` first and still > got the error. I can't easily test in 7 because it depends on Magritte which > depends on Grease which doesn't seem to load yet. Maybe I can cobble > together a simpler test case. > > The Git error I mentioned in my OP was caused because `LGitRepository >> > clone:options:to:` is trying to clone > 'git@bitbucket.org:nDeNigris/Quote-Me.git' based on > `gitlab://SeanDeNigris/Quote-Me:master/repository` from the baseline spec. > Earlier in the stack, `IceProviderRepositoryType >> mcRepository` is using > `MCBitbucketRepository` which is hardcoded. > > All of the above is with iceberg metacello integration enabled. yep. that seems to be a bug. Esteban > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Jan. 2, 2018

Re: [Pharo-users] Metacello with Git

by Alistair Grant

Hi Sean, On 2 January 2018 at 18:00, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > EstebanLM wrote >> if you have iceberg metacello integration enabledâ¦ Then it works on >> baselines, etc. > > Strange. I did `Iceberg enableMetacelloIntegration: true.` first and still > got the error. I can't easily test in 7 because it depends on Magritte which > depends on Grease which doesn't seem to load yet. Maybe I can cobble > together a simpler test case. This may not help, but... Pharo 7.0 Build information: Pharo-7.0+alpha.build.398.sha.52a28a857deec25612d302aba8ab09bdd6212b31 (32 Bit) I have Pillar loaded, which in turn loads: ConfigurationOfMagritte3-topa.126 Magritte-Model-SeanDeNigris.465 Magritte-Morph-SeanDeNigris.95 Magritte-Pharo3-Model-JohnCBorden.4 ConfigurationOfGrease-StephanEggermont.348 Grease-Core-JohanBrichau.97 Grease-Pharo30-Core-PavelKrivanek.22 The image was built about 4 days ago. HTH, Alistair > The Git error I mentioned in my OP was caused because `LGitRepository >> > clone:options:to:` is trying to clone > 'git@bitbucket.org:nDeNigris/Quote-Me.git' based on > `gitlab://SeanDeNigris/Quote-Me:master/repository` from the baseline spec. > Earlier in the stack, `IceProviderRepositoryType >> mcRepository` is using > `MCBitbucketRepository` which is hardcoded. > > All of the above is with iceberg metacello integration enabled. > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >

Jan. 2, 2018