April 2015 - Pharo-users - lists.pharo.org

Mapping graphs on a open street map

by Alexandre Bergel

Hi! Several times we were asked how to map chart and graph on top of a geographical map. Here is a short example. Hope it is useful to someone. http://ws.stfx.eu/11NOBLH3SIYO <http://ws.stfx.eu/11NOBLH3SIYO> -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= v := RTView new. map := RTOSM new. e := map element. v add: e. paris := 48.8567 @ 2.3508. newyork := 40.7127 @ -74.0059. london := 51.507222@ -0.1275. v @ RTDraggableView. data := { { paris . { 10 . 5 . 10 . 3 . 10 .6 . 8 } }. {london . { 5 . 3 .3 . -5 } } . {newyork . { 5 . -2 . 10 . 15 . -10 }} }. data do: [ :tupple | | grapher dataSet | grapher := RTGrapher new. grapher extent: 150 @ 100. dataSet := RTStackedDataSet new points: tupple second. dataSet barShape width: 10; color: Color red. grapher add: dataSet. grapher axisY. grapher axisX noLabel; noTick. grapher build. allGraphElements := grapher view elements. v addAll: allGraphElements. allGraphElements translateTo: (map latLonToRoassal: tupple first) ]. v canvas camera translateTo: (map latLonToRoassal: paris). v canvas camera noInitializationWhenOpen. v canvas camera scale: 0.1. v -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

April 7, 2015

happy easter :-)

by Alexandre Bergel

A few days late :-) http://ws.stfx.eu/B8D2V8TO8BIE <http://ws.stfx.eu/B8D2V8TO8BIE> -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

April 7, 2015

Re: [Pharo-users] Metacello GIT methodProperties.json

by Dale Henrichs

and if we remove the method properties from FileTree, then the monticello files stored there could not be transparently copied into and out of a FileTree repo ... and FileTree is SCM neutral ... Personally I use https://github.com/ThierryGoubier/GitFileTree-MergeDriver and never think twice about the properties files ... Dale On 04/07/2015 08:48 AM, Thierry Goubier wrote: > Hi Peter, > > Le 07/04/2015 17:39, Peter UhnÃ¡k a Ã©crit : >> Hi, >> >> are "methodProperties.json" files needed? > > No. > >> Every time someone makes even small changes it is accompanied by ten >> times more json file changes which is a mess. > > Yes, it creates quite some noise on the git logs and diffs. > >> So is it needed with git? Cannot the information be retrieved from git >> commits? > > It is not needed for git. > > GitFileTree retrieves the information via the git logs. > > But, if we remove it entirely, then the repository won't be usable by > filetree. So GitFileTree keeps writing that metadata to stay compatible. > > Thierry >

April 7, 2015

Re: [Pharo-users] String operations

by Peter UhnÃ¡k

> 'BormParticipant' allButFirst: 4 ('BormParticipant' splitOn: 'Borm') last Thank you both, this will work. :) In the Moose configuration, there is a CollectionExtensions that allows you > to do this: > 'BormParticipant' removePrefix: 'Borm' "-> 'Participant'". > 'BormParticipant' removeSuffix: 'Participant' "-> 'Borm'" > > For Pharo 5, we should move these extensions to Pharo. > > Isn't it the case that a remove* methods mostly return what has been > removed? Wouldn't be > > withoutPrefix: > withoutSuffix: > I guess withoutPrefix: would probably makes more sense. Thanks, Peter

April 7, 2015

Re: [Pharo-users] Spec with dynamic tabs

by Peter UhnÃ¡k

Can you add an issue for Pharo 5 so it doesn't get lost? Currently a lot of effort is focused on Pharo 4 release (this week-ish), so nobody might have time to look at this now. Peter On Thu, Apr 2, 2015 at 5:16 PM, Hartmut <krasemann(a)acm.org> wrote: > Hi to all, > > I'm working with Spec and appreciate the modularity a lot. > However, I had some difficulties to discover, how I can have a dynamic > widget in a tab. > > Plugging together the TabsExample and the DynamicWidgetChange didn't work > either. > > In the end I discovered the flaw: > > - In DynamicWidgetChange>>change the last line from "self openWithSpec" > to "self buildWithSpec" . > The DynamicWidgetChange example works as before. > > But now also the following works (I propose to enhance the example): > - Add a method > "dynamicTab > | tab | > tab := self newTab. > tab > label: 'Dynamic'; > icon: Smalltalk ui icons nautilusIcon; > model: (DynamicWidgetChange new). > ^ tab " > to DynamicWidgetChange. > - add a line "addTab: self dynamicTab " to DynamicWidgetChange>> > populateManager > > Now you can dynamically change the widgets in the fourth tab. > > Cheers, Hartmut > > -- > Hartmut Krasemann > KÃ¶nigsberger Str. 41 c > D 22869 Schenefeld > Tel. 040.8307097 > Mobil 0171.6451283 > krasemann(a)acm.org > > >

April 7, 2015

Re: [Pharo-users] ZnClient: getting more that 19 tweet for data scrapping

by Sven Van Caekenberghe

What Paul showed is basically just a hack. What you probably what is full API access to Twitter, that gives you the real thing, but it is more work and you have to understand all the technical details (unless somebody already did it for you, I don't know - I know that Zinc-SSO can connect to Twitter). https://dev.twitter.com/overview/api > On 07 Apr 2015, at 20:23, Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net> wrote: > > Hi, > > Recently Paul DeBruicker taught me how to refine my code for getting tweets properly. Consider this: > > =[1]==================================== > | source anUrl tweet | > > anUrl := 'https://twitter.com/offrayLC'. > source := Soup fromString: (ZnEasy get: anUrl ) contents asString. > tweets := (source findAllTagsByClass: 'ProfileTweet-text') collect:[:ea | ea text]. > ======================================== > > Is working fine, but I would like to get more that 19 tweets, that is what you get by default. There is any way to tell ZnEasy and friends to get more tweets, something similar to what you do when you scroll down into a twitter page? > > And by the way, I would like to make more sense of the Soup I got in the last line. ea text gives me the tweet contents, but how can I interpret the metadata in the soup? (is a retweet, date of publishing and so on). I could make this for most part of the twitter profile page, but the tweet is kind of elusive, for example how to know that "text" is the proper message for getting the tweet content? Any pointer to how to make sense of it by myself is greatly appreciated. > > Cheers, > > Offray >

April 7, 2015

ZnClient: getting more that 19 tweet for data scrapping

by Offray Vladimir Luna CÃ¡rdenas

Hi, Recently Paul DeBruicker taught me how to refine my code for getting tweets properly. Consider this: =[1]==================================== | source anUrl tweet | anUrl := 'https://twitter.com/offrayLC'. source := Soup fromString: (ZnEasy get: anUrl ) contents asString. tweets := (source findAllTagsByClass: 'ProfileTweet-text') collect:[:ea | ea text]. ======================================== Is working fine, but I would like to get more that 19 tweets, that is what you get by default. There is any way to tell ZnEasy and friends to get more tweets, something similar to what you do when you scroll down into a twitter page? And by the way, I would like to make more sense of the Soup I got in the last line. ea text gives me the tweet contents, but how can I interpret the metadata in the soup? (is a retweet, date of publishing and so on). I could make this for most part of the twitter profile page, but the tweet is kind of elusive, for example how to know that "text" is the proper message for getting the tweet content? Any pointer to how to make sense of it by myself is greatly appreciated. Cheers, Offray

April 7, 2015

Re: [Pharo-users] Updating ZeroConf! Please do not use it until new advice!

by Offray Vladimir Luna CÃ¡rdenas

Yep, Thanks a lot Esteban. A memorable future is comming :-) Cheers, Offray El 07/04/15 a las 11:00, Sven Van Caekenberghe escribiÃ³: > Good work, thanks. > >> On 07 Apr 2015, at 17:24, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >> >> okâ¦ success :) >> now, this is the change: >> >> from now, each version is married with one vm. >> >> so, if you download /30+vm it will download the Pharo30 image with its corresponding "vm30" >> >> which means some links do not have sense anymore: >> >> /vm >> /vmLatest >> >> but you have >> >> /vm12 >> ... >> /vm20 >> /vm30 >> /vm40 >> /vmLatest40 >> >> the concept of âlatest vmâ is also now married to development imageâ¦ while an image is being developed (40 now, 50 next week), it will have a âlatestâ vmâ¦ but once releases, release will come with a âblessedâ vmâ¦ the one is good for you to use. >> >> of course, that does not means vmâs are not exchangeable, as usualâ¦ it means we are blessing one version of the vm to be used with one version of the image. >> >> Now, the vm will download just ONE source version (vm30 will download PharoV3.sources)â¦ so we can keep many version without bloating our downloads. >> >> Also, this prepares us to future non compatible VM versions (like Spur), so is a good change. >> >> I hope it is clear for you :) >> >> cheers, >> Esteban >> >> >> >>> On 07 Apr 2015, at 16:56, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >>> >>> Ok, retrying. DO NOT USE THEM! >>> >>> Esteban >>> >>>> On 07 Apr 2015, at 16:20, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >>>> >>>> ok, you can use it now. Update failed and I need to leave for half na hourâ¦. I will retry later. >>>> >>>> cheers, >>>> Esteban >>>> >>>>> On 07 Apr 2015, at 16:03, Esteban Lorenzano <estebanlm(a)gmail.com> wrote: >>>>> >>>>> thatâ¦ we need to change it :P >>>> >>> >> >> > > >

April 7, 2015

Re: [Pharo-users] Showcase of initial support for word clouds and data scrapping (and the usual newbie questions)

by Offray Vladimir Luna CÃ¡rdenas

Thanks Nicolai, you were right. The problem was not on the image format, but on the parsing of the date. It was just that my non working test were located at places where, coincidentally, the images were on jpg format and I was misreading the signals :-). Now both, date scrapping/formating and images in jpeg and png, are working properly. Last version of Dataviz[1] reflect that changes. [1] http://smalltalkhub.com/#!/~Offray/Dataviz Cheers, Offray El 07/04/15 a las 03:18, Nicolai Hess escribiÃ³: > > 2015-04-07 2:12 GMT+02:00 Offray Vladimir Luna CÃ¡rdenas <offray(a)riseup.net > <mailto:offray@riseup.net>>: > > Hi all, > > On [1] you can see a small video showing the support for word clouds and > data scrapping from Twitter for some public profiles (including mine). As > you can see the visualization is embedded on grafoscopio trees/documents > that provide context for the scripts and combine them with other > documentation. You can create your own visualization by running the code at > [2] and changing the profile name. > > [1] https://archive.org/details/__gfcp-wordclouds-initial.mp4 > <https://archive.org/details/gfcp-wordclouds-initial.mp4> > [2] http://ws.stfx.eu/DVG4C8VFON1L > > So here are my usual questions: > > a) The code that puts an image in a name cloud accepts only png images and > when the avatar has jpeg images I got an error. There is any way to make the > RTNameCloud to work with jpg or to convert it to png. I was looking at > Sven's documentation[3], but I can't make it work in my context (jpeg is > taken from the web and converted to png without using the file system). > > > Why do you need a png ? The R TNameCloud does not use a image on its own, its > your code that adds a RTBitmap, and as far as I can see, the RTBitmap > only works with "Form". > > > [3] https://medium.com/concerning-__pharo/elegant-pharo-code-__bb590f0856d0 > <https://medium.com/concerning-pharo/elegant-pharo-code-bb590f0856d0> > > b) There is any way to go beyond 19 tweets. In recent conversations with > Paul[4] he taught me how to extract tweets properly from a page using > ZnClient, but it gets the last 19. There is any way to make ZnClient to go > beyond that initial request and get, lets say 100 or more tweets? > > [4] > http://forum.world.st/Data-__scrapping-in-pharo-Extracting-__tweets-content… > <http://forum.world.st/Data-scrapping-in-pharo-Extracting-tweets-contents-td…> > > Thanks as always for keeping Pharo/Moose and their communities awesome! > > Cheers, > > Offray > >

April 7, 2015

Re: [Pharo-users] Devnology presentation slides

by Stephan Eggermont

On 07/04/15 18:52, Thierry Goubier wrote: > such narratives are important. > >> Pharo uses a very simple and orthogonal language, using a very small >> set of constructs. > > I allways tend to complement with: > >> but this very small set of constructs contains all the needed >> features for building highly complex, understandable and reusable >> software architectures. That's a good addition, thank you Stephan

April 7, 2015