- Pharo-users - lists.pharo.org

Re: [Pharo-users] Openstreetmap on Pharo

by Thierry Goubier

Hi Hilaire, OSM tiles support was added to Roassal, and demonstrated in two videos [1][2]. The context of the work was presented at FOSDEM [3]. In the pillarhub document, I demonstrated how to query the raw OSM data; we made sure that the tile support and georeferenced data could go on the same level, and be precise to the pixel to the underlying tile rendering. I'm sure all this works in Pharo4, just try the RTOSM examples! There is probably a way to make it interactive with data downloading and a playground, using the sample code present in the pillarhub document. [2] is a bit different, it uses a sensor network design tool and simulateur which requires VisualWorks, Occam and/or a Cuda GPU :). But it makes for an interesting demo / talk if it is your field, just contact Onil. Thierry [1] https://www.youtube.com/watch?v=6zoGIsQaGUo [2] https://www.youtube.com/watch?v=sMB7DG-lbiU [3] https://archive.fosdem.org/2015/schedule/event/cirela/ Le 15/07/2015 19:16, Hilaire a Ã©crit : > Hi, > > In a few weeks I will give a speech in Taiwan at NCHC[1] about Pharo, my > intend is to present release 4. I already did speeches there in the past > about Pharo, but I have a hard time to raise interest to the point > people want to jump in. > But I hope to have an angle this time because NCHC recently offers a > server and the hosting for an openstreetmap tile server (the first in > Asia by the way), and there is high interest here in Taiwan about OSM > related stuff. > > I read here, job has been done with Roassal and OSM, but it is not clear > for me how to get in using OSM within Pharo. I am particularly > interested in providing an interactive demo where live programming shows > its value. > > I have found these pointers bellow. I am interested by any additional > tips and url, and particularly the compatibility with Pharo4. > > https://github.com/fstephany/OSMMaps > http://pillarhub.pharocloud.com/hub/ThierryGoubier/5y08m9uu71o8i7a35ijwr766p > > > > Thanks > > Hilaire > > > [1] > https://en.wikipedia.org/wiki/National_Center_for_High-Performance_Computing >

July 15, 2015

GL inspector, editing attribute

by Hilaire

Hello, >From a GL inspector, how am I supposed to change the value of an attribute. When I double click on its value, I have a in place editor, but changing and validating with Enter or Alt-s does not work. Thanks Hilaire -- Dr. Geo http://drgeo.eu http://google.com/+DrgeoEu

July 15, 2015

Openstreetmap on Pharo

by Hilaire

Hi, In a few weeks I will give a speech in Taiwan at NCHC[1] about Pharo, my intend is to present release 4. I already did speeches there in the past about Pharo, but I have a hard time to raise interest to the point people want to jump in. But I hope to have an angle this time because NCHC recently offers a server and the hosting for an openstreetmap tile server (the first in Asia by the way), and there is high interest here in Taiwan about OSM related stuff. I read here, job has been done with Roassal and OSM, but it is not clear for me how to get in using OSM within Pharo. I am particularly interested in providing an interactive demo where live programming shows its value. I have found these pointers bellow. I am interested by any additional tips and url, and particularly the compatibility with Pharo4. https://github.com/fstephany/OSMMaps http://pillarhub.pharocloud.com/hub/ThierryGoubier/5y08m9uu71o8i7a35ijwr766p Thanks Hilaire [1] https://en.wikipedia.org/wiki/National_Center_for_High-Performance_Computing -- Dr. Geo http://drgeo.eu http://google.com/+DrgeoEu

July 15, 2015

Re: [Pharo-users] Fwd: Phratch: System/World Menu instead of phratch menu

by jannik laval

Hi Offray, Could you reproduce the bug ? Or when does it appear ? Best regards, Jannik 2015-07-15 17:39 GMT+02:00 Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> : > He he, sorry sending from the wrong mail address, here comes again. > > > -------- Forwarded Message -------- Subject: Phratch: System/World Menu > instead of phratch menu Date: Wed, 15 Jul 2015 10:35:37 -0500 From: Offray > Vladimir Luna CÃ¡rdenas <offray.luna(a)mutabit.com> <offray.luna(a)mutabit.com> To: > pharo-users(a)lists.pharo.org > > Hi, > > Some of my students are having a problem. For some reason the pharo > world/system menu appears and we don't know how to disable it and go > back to the phratch menu, so we can't use "Save as" and other options to > save/export projects. > > How to get back the default behaviour for Phratch menus? > > Thanks, > > Offray > > > > -- ~~Jannik Laval~~ Ãcole des Mines de Douai Enseignant-chercheur http://www.jannik-laval.eu http://www.phratch.com http://www.approchealpes.info http://car.mines-douai.fr/

July 15, 2015

Fwd: Phratch: System/World Menu instead of phratch menu

by Offray Vladimir Luna CÃ¡rdenas

He he, sorry sending from the wrong mail address, here comes again. -------- Forwarded Message -------- Subject: Phratch: System/World Menu instead of phratch menu Date: Wed, 15 Jul 2015 10:35:37 -0500 From: Offray Vladimir Luna CÃ¡rdenas <offray.luna(a)mutabit.com> To: pharo-users(a)lists.pharo.org Hi, Some of my students are having a problem. For some reason the pharo world/system menu appears and we don't know how to disable it and go back to the phratch menu, so we can't use "Save as" and other options to save/export projects. How to get back the default behaviour for Phratch menus? Thanks, Offray

July 15, 2015

Re: [Pharo-users] PharoJS

by Ben Coman

On Wed, Jul 15, 2015 at 5:28 PM, Torsten Bergmann <astares(a)gmx.de> wrote: > ClÃ©ment Bera wrote: > >>What is PharoJS ? Are you talking about Pharo on top of the Bert's SqueakJS VM ? >>If so, it starts, but some primitives fail making it freeze after a short >>while as you describe. >>It would be fun to have it running even though most of the Pharo folks went >>into the Amber direction for Pharo on Javascript. > > Yes there is SqueakJS from Bert https://bertfreudenberg.github.io/SqueakJS/ > and I would have expected "PharoJS" to be the same for Pharo. > > At least I would "reserve" the name for the case Pharo images work on it > as well. That would be ideal. Otherwise the door is opened for people searching for something like SqueakJS on Pharo to be confused. They get excited they found it, then disappointed it wasn't what they were looking for. An alternative could be PharotoJS :). But maybe that horse has bolted... and open source implies those that do the work get to make the choices. cheers -ben > Unfortunately Noury Bouraqadi now took this "PharoJS" name for his > Pharo -> JavaScript compiler

July 15, 2015

Re: [Pharo-users] NativeBoost and variadic functions

by Ben Coman

On Wed, Jul 15, 2015 at 5:16 PM, Matthieu Lacaton <matthieu.lacaton(a)gmail.com> wrote: > Hello Igor, > > Thanks for your answer. > > I implemented something like that for the printf function: > Basically, it generates a method with matching arguments and executes it. > >> printf: stringFormat args: tab >> >> | argNumber functionArgs functionPrototype methodCorpse methodSelector >> argsArray | >> >> ((tab size % 2) = 0) ifFalse: [ >> Transcript show: 'error'. >> ^self. >> ]. >> >> argNumber := 0. >> functionPrototype := 'printf: stringFormat'. >> functionArgs := ''. >> methodCorpse := ''. >> argsArray := (Array new: (tab size / 2) + 1). >> argsArray at: 1 put: stringFormat. >> >> 1 to: tab size by: 2 do: [ :i | >> functionPrototype := functionPrototype, ' arg', argNumber >> asString, ': ', (tab at: i) asString, argNumber asString. >> functionArgs := functionArgs, ' ', (tab at: i) asString, ' ', (tab >> at: i) asString, argNumber asString, ','. >> argsArray at: argNumber + 2 put: (tab at: i + 1). >> argNumber := argNumber + 1. >> ]. >> functionArgs := functionArgs allButLast. >> >> methodCorpse := functionPrototype, Character cr asString, ' >> <primitive: #primitiveNativeCall module: #NativeBoostPlugin>', Character cr >> asString, Character cr asString, ' ^self nbCall: #( void printf ( String >> stringFormat,', functionArgs asString, ' ) )', Character cr asString, ' >> module: NativeBoost CLibrary'. >> >> methodSelector := self class compile: methodCorpse. >> >> self perform: methodSelector withArguments: argsArray. > > > > Then you can call it like that : > > MyClass printf: 'Test of printf. String: %s, Int : %d, Long: %ld, Char: %c, > Double: %lf' args: { 'String'. 'This is a string'. 'int'. 100. 'long'. > 10000000. 'char'. 89. 'double'. 3.14159 }. > > > I also tried it for some other variadic functions and, on my computer (I am > running archlinux), it seemed to work for every type of argument except > "float". Maybe NativeBoost does not do implicit type conversions that a C compiler would do? [1] "Because C will promote floats to doubles for functions that take variable arguments" More info search [2] for: * "implicit type conversion" * "guess wrongly when the program uses floating-point formats in scanf() or printf()" [1] http://stackoverflow.com/questions/210590/why-does-scanf-need-lf-for-double… [2] http://www.electroons.com/8051/ebooks/expert%20C%20programming.pdf cheers -ben > It works fine for "double" though. > For "char" you need to pass the integer ASCII value directly for it to work. > I tried with "Character value: xxx" but it didn't work. > > I know that this is very hackish and very bad, and I am aware it has some > drawbacks. Moreover I am not even sure it will work everytime. > But for now it seems to work ... > > 2015-07-13 19:24 GMT+02:00 Igor Stasenko <siguctua(a)gmail.com>: >> >> >> >> On 10 July 2015 at 10:18, Matthieu Lacaton <matthieu.lacaton(a)gmail.com> >> wrote: >>> >>> Hello, >>> >>> Is it possible with NativeBoost to create a binding for a variadic >>> function ? >>> >>> I've seen the printf example in NBCPrinter but this implementation is >>> kind of cheating since it always pass just a %s as format and one already >>> formatted string to the C function. >>> >>> I've written a simple variadic function which adds every integer it >>> receives as argument (first argument is for the number of following >>> arguments) : >>> >>> int add(int number,...); >>> >>> In Pharo I've tried something like this : >>> >>>> add: number arg1: first arg2: second >>>> <primitive: #primitiveNativeCall module: #NativeBoostPlugin> >>>> >>>> ^ self nbCall: #( int add (int number, int first, int second)) >>>> module: 'libMyLib.so' >>> >>> >>> and it works fine with two arguments. >>> >>> Basically, doing so, I would need one method per number of arguments so >>> it's not very cool. >>> >>> I thought that maybe I could pass an array as argument to my Pharo method >>> but I didn't really find a way to figure out how to define the nbCall >>> without having a "Generic failure". >>> >>>> add: number args: anArray >>>> <primitive: #primitiveNativeCall module: #NativeBoostPlugin> >>>> >>>> ^ self nbCall: #( int add (int number, ??? anArray)) >>>> module: 'libMyLib.so' >>> >>> >>> Do you have an idea ? >>> >> >> In short, there's no marshaller for converting an array of items, to same >> number of things on stack. That could solve the problem with your example: >> passing array of objects of *same* type. But in general, it is not what C >> variadic function(s) standing for. Because they stand for any number of >> arguments, of any type. >> In C, since all program is compiled statically, compiler knows the number >> of passed arguments and their types through compiling each particular call >> site(s) to variadic function. Which means that in fact, you are still >> supplying all information needed by compiler *before* run time. >> >> In variadic functions, you can pass any arguments of any type, >> but for converting each of them, you must tell NB what kind of marshaller >> should be used for it , which means, that it is impossible to know before >> run time, since you cannot know how many arguments you may pass, not >> speaking about their types. >> >> >> >>> >>> Thanks, >>> >>> Matthieu >>> >>> >> >> >> >> -- >> Best regards, >> Igor Stasenko. > >

July 15, 2015

Re: [Pharo-users] PharoJS

by Andy Burnett

Hi Noury, Thanks for the link to the documentation. I have managed to get up and running now - very cool! One question. When I execute 1+1 on the Pharo (pink) playground, I see the code appearing in the web browser log, but it doesn't appear to execute. Is it supposed to, or at this stage is it just showing that it made it over to the web browser? Cheers Andy

July 15, 2015

Re: [Pharo-users] PharoJS

by Noury Bouraqadi

Thanx Torsten for the fix. I integrated it :-) Noury > On 15 Jul 2015, at 12:42, Torsten Bergmann <astares(a)gmx.de> wrote: > > Hi Noury, > > thanks for the feedback. For windows to open a URL one can use: > > NBWin32Shell shellOpen: 'http://www.google.de' > > I adopted the > > startJavaScriptInterpreter > |url| > url := 'http://localhost:', self port asString. > Smalltalk os isWindows ifTrue: [ ^NBWin32Shell shellOpen: url ]. > OSProcess command: 'open ', url > > and run > > workspace := JbWorkspaceForWeb open. > > It basically runs (still throwing some Zinc errors - but I can push some eval scripts to the browser > (Chrome). No time today to look deeper today. > > Please add me as a contributor so I can provide the fix/fixes or make the repo public (if possible). > > Thanks > T. > > > Gesendet: Mittwoch, 15. Juli 2015 um 12:19 Uhr > Von: "Noury Bouraqadi" <bouraqadi(a)gmail.com> > An: "Torsten Bergmann" <astares(a)gmx.de> > Cc: "Pharo users users" <pharo-users(a)lists.pharo.org> > Betreff: Re: PharoJS > Hi Torsten, > > Thanks for the feedback. > I have been pushed to make it public right before ESUG. > I'm trying my best to make it clean and documented. > > If you are using a Mac, the examples I provide on http://car.mines-douai.fr/pharojs/ <http://car.mines-douai.fr/pharojs/> should work out of the box. > > For other platforms (Windows & Linux) I need the command line to open a web browser on a specific URL. > Any hint? > > Regarding the naming PharoJS is more than a bridge. It allows: > -Develop and test apps in Pharo > -Generate a javascript file for a standalone app > > Noury > > On 15 Jul 2015, at 11:28, Torsten Bergmann <astares(a)gmx.de <x-msg://8/astares@gmx.de>> wrote: > > ClÃ©ment Bera wrote: > > What is PharoJS ? Are you talking about Pharo on top of the Bert's SqueakJS VM ? > If so, it starts, but some primitives fail making it freeze after a short > while as you describe. > It would be fun to have it running even though most of the Pharo folks went > into the Amber direction for Pharo on Javascript. > > Yes there is SqueakJS from Bert https://bertfreudenberg.github.io/SqueakJS/ <https://bertfreudenberg.github.io/SqueakJS/> > and I would have expected "PharoJS" to be the same for Pharo. > > At least I would "reserve" the name for the case Pharo images work on it > as well. > > > Unfortunately Noury Bouraqadi now took this "PharoJS" name for his > Pharo -> JavaScript compiler > > http://car.mines-douai.fr/2015/07/develop-in-pharo-run-on-javascript/ <http://car.mines-douai.fr/2015/07/develop-in-pharo-run-on-javascript/> > > leading a little bit to this confusion. > > I would have called the project "Pharo JavaScriptBridge" like the config and the > repo http://smalltalkhub.com/#!/~noury/JavaScriptBridge <http://smalltalkhub.com/#!/~noury/JavaScriptBridge> > > I loaded the config from the SmalltalkHub repo and then: > > ConfigurationOfJavaScriptBridge loadBleedingEdge > > tried JbClientControllerBridge startOn:80 > > but were hit by several errors. > > In my opinion a minimal HOWTO would be required. > > Thanks > Torsten

July 15, 2015

Re: [Pharo-users] PharoJS

by Noury Bouraqadi

> On 15 Jul 2015, at 12:34, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > > Noury Bouraqadi-2 wrote >> Regarding the naming PharoJS is more than a bridge. It allows: >> -Develop and test apps in Pharo >> -Generate a javascript file for a standalone app > > How does it compare to Amber? Similar use case? > The main difference is that with PharoJS we develop and test in Pharo, with the confort of all cool tools such as the GT inspector, spotter :-) Noury

July 15, 2015