June 2018 - Pharo-users - lists.pharo.org

StCAD is open source
by askoh June 25, 2018

June 25, 2018

Hi: I have just open source StCAD (MIT license) which has the code for freeCAD. http://askoh.com/stcad Although written in VisualWorks, I hope Pharo developers can port it in part or whole. All the best, Aik-Siong Koh What is 'StCAD'? 'StCAD' is a basic 3D CAD framework in Smalltalk (VisualWorks 8.x). It extends the GF/ST 2D drawing framework into 3D. It also include 'StCAD-Geo' which is the 3D geometric domain, 'StCAD-Math' which provides the mathematical support for 3D CAD and motion simulation computations, and 'StCAD-Doc' which is a simple word processor. 'StCAD-Math' is also suitable for engineering, scientific and business computing. The parcels are open source using MIT License. Users can use these parcels with other private software to create 3D applications like motion simulation, finite element analysis, CAD, scientific visualization, etc. 'StCAD' allows users to create and manipulate assemblies, which are collections of 3D parts. The parts are 3D solids, which can be connected by joints, constraints, contacts, actuators, springs, dampers or forces. The parts and connections define the structure or mechanism that the assembly is meant to represent. Animation is possible, if the user can provide time series of position and orientation data for the parts. Users can also obtain output data in the form of plots and tables. XY plots can be zoomed and set to equal scales. Data series available include linear and angular displacements, velocities, accelerations and other user generated data. 'StCAD' has been used to create a freeware called 'freeCAD' which is a 3D CAD with Motion Simulation. For more information visit: http://www.askoh.com -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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[ANN] Pharo Launcher v1.2 release
by Christophe Demarey June 24, 2018

June 24, 2018

Hi all, I just released PharoLauncher 1.2. It includes a new windows installer that you can use without administrator privileges as well as binary signing for OS X and Windows. Also, Pharo Launcher is not anymore identified as âPharoâ application and comes with its own icon. Here is the changelog (details on https://github.com/pharo-project/pharo-launcher/issues <https://github.com/pharo-project/pharo-launcher/issues>): New features: #21 Bless the DMG #46 sign pharo launcher app for windows #103 No way to rename a local template #107 Unable to add a description for the image using the Launcher UI #121 You can't see/sort images by last modified date Improvements: #69 Import command should also import pharo-local directory #70 Import command should delete origin folder if empty #73 Managers of Download of VMs and images should be in their own packages #76 Use https instead of http to requests the pharo file server #82 Official Distributions loads 32bit versions on 64bit System (i.e. provide better information on templates architecture) #86 Sort Existing Images Case-Insensitive #98 Copy and subfolders problem (contents no copied) #101 Templates from a local image are listed in "downloaded". "local" would be a better name #102 Template Cleared at Startup setting is enabled, making it weird when trying to use the template feature #106 Import could work if we select the parent folder of an image #109 Use latest pre-Spur VM to determine the image version #122 The Run without settings icon looks like a funny grey/which blob (missing alpha correction) Bux fixes: #41 #selectedMorphList was sent to nil #67 bash is not a command usable under windows #68 Does not launch images on Windows #85 Double click on an existing image open a file selector #88 Pharo Launcher on Windows > Failing #104 GUI bug makes Launcher unusable #110 Image launch not reliable on Windows #119 MessageNotUnderstood exception on launch #123 The status bar of the Launcher is broken, so can't easily show image descriptions Big thanks to all contributors: code, issues report, comments, advices. You can get platform bundles from pharo download page or files.pharo.org <http://files.pharo.org/>: http://files.pharo.org/pharo-launcher/1.2/ <http://files.pharo.org/pharo-launcher/1.2/> Regards, Christophe.

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Strange Result - OmniBase bug or Date feature?
by PBKResearch June 24, 2018

June 24, 2018

Retransmit with additional information: All tests with Windows 10 with all recent updates Hello All I am experimenting with the version of OmniBase which Esteban Lorenzano posted a few days ago. With corrections posted by Matias Moretto, who is working on the same track, I have got the first five tests all green. On the sixth test, OmniBaseTest>>#testEquality, I have run into a strange failure. I don't know whether it shows that OmniBase is not recovering data correctly, or whether it is a feature of the way Date is implemented in Pharo. (I still have Dolphin 6 on my machine, including OmniBase, and there the same test passes.) The test simply constructs a collection of various types of object, stores the whole collection on the database, retrieves it and compares each retrieved element with the corresponding element of the original collection. One element is obtained by evaluating 'Date today', and that is the one that fails. The test failure description is: 'Got 23 June 2018 instead of 23 June 2018.' Using the inspector, I can see that the retrieved date differs from the original in that the instvar 'start' has a Julian Day Number which is one greater, but seconds as zero instead of 82800 and an offset of zero instead of 1:00:00. In fact 82800 seconds is 23 hours, so all these add up to the same start time, just differently represented. To get round the failure, I changed the constructor of the test collection to use 'Date today printString', which of course meant it worked perfectly. My worry is whether in some other context the change of the innards of the object might have an adverse effect. I don't understand why the Date constructor represents the start of today as 23 hours after 1 a.m. yesterday. Is the change something OmniBase has done in storing and retrieving, or is it due to the way the Date is reconstructed? Just for fun, I used Fuel to serialize and re-materialize Date today; it did not make any changes. Does this reinforce Todd's suggestion that OmniBase is not reliable, or is it just a quirk? Any ideas gratefully received Peter Kenny

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Strange Result - OmniBase bug or Date feature?
by PBKResearch June 23, 2018

June 23, 2018

Hello All I am experimenting with the version of OmniBase which Esteban Lorenzano posted a few days ago. With corrections posted by Matias Moretto, who is working on the same track, I have got the first five tests all green. On the sixth test, OmniBaseTest>>#testEquality, I have run into a strange failure. I don't know whether it shows that OmniBase is not recovering data correctly, or whether it is a feature of the way Date is implemented in Pharo. (I still have Dolphin 6 on my machine, including OmniBase, and there the same test passes.) The test simply constructs a collection of various types of object, stores the whole collection on the database, retrieves it and compares each retrieved element with the corresponding element of the original collection. One element is obtained by evaluating 'Date today', and that is the one that fails. The test failure description is: 'Got 23 June 2018 instead of 23 June 2018.' Using the inspector, I can see that the retrieved date differs from the original in that the instvar 'start' has a Julian Day Number which is one greater, but seconds as zero instead of 82800 and an offset of zero instead of 1:00:00. In fact 82800 seconds is 23 hours, so all these add up to the same start time, just differently represented. To get round the failure, I changed the constructor of the test collection to use 'Date today printString', which of course meant it worked perfectly. My worry is whether in some other context the change of the innards of the object might have an adverse effect. I don't understand why the Date constructor represents the start of today as 23 hours after 1 a.m. yesterday. Is the change something OmniBase has done in storing and retrieving, or is it due to the way the Date is reconstructed? Just for fun, I used Fuel to serialize and re-materialize Date today; it did not make any changes. Does this reinforce Todd's suggestion that OmniBase is not reliable, or is it just a quirk? Any ideas gratefully received Peter Kenny

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Workflow aka Aare status?
by PAUL DEBRUICKER June 23, 2018

June 23, 2018

I read this thread: http://forum.world.st/Aare-questions-td5063745.html And it seems a lot of work has been done since Max/NetStyle posted the code here: https://github.com/Netstyle/Workflow In Stef's repo here: https://github.com/Ducasse/Workflow Is anyone else working on it / publishing code for it? Thanks Paul

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How do you clone Calypso to contribute to it?
by Tim Mackinnon June 22, 2018

June 22, 2018

Ok - I give up - how do you add Calypso as a project to help contribute to it? Iâve downloaded the latest Pharo 7 image (1081), and Iâve tried to use the Github template to load my fork of Calypso. After several read herrings where I was getting a Github timeout (it turns out that Calypso isnât in a src directory but in a root directory) I have gotten further, in that it loads the code, but at the end of the operation I always get âfailed to connect to GitHub.com : Operation timed outâ. It looks to have loaded all of the code and but then it looks to be doing a remote fetch to (pharo-ide (git://github.com/pharo-ide/Calypso.git)) - which isnât the fork Iâm cloning, and then it gets its knickers in a knot? Iâm using https (which has worked so far for everything else) What is going on? Tim

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Is there an easy way to create a test class in Calypso?
by Tim Mackinnon June 22, 2018

June 22, 2018

Hi - In nautilus there was a handy menu item on a class to jump to its test class (and create it if need by) - Is there any easy way to do this in Calypso? I know it was a simple thing - but I found it did encourage me to write testsâ¦ Tim

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Project dependency management with Iceberg
by Vitor Medina Cruz June 22, 2018

June 22, 2018

Hello, How do I do project dependency management with Iceberg? I tried sometime ago but I was unable to understand how it work together with Metacello, is there some tutorial available? Regards, Vitor

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Lost in stream
by Hilaire June 22, 2018

June 22, 2018

Hi, I have issue when moving away from the deprecated File API to save PNG image: This fromer code to save file (xml or PNG file): "Â Â Â |streamOnDisk| Â Â Â [streamOnDisk := MultiByteFileStream forceNewFileNamed: (self absolutePath: filename). Â Â Â streamOnDisk nextPutAll: stream contents] ensure: Â Â Â Â Â Â [streamOnDisk close]" and the newer one: Â Â Â (locationÂ asFileReference / filename) binaryWriteStreamDo: [ :fileStream | Â Â Â Â Â Â fileStream nextPutAll: stream contents] The new one produce both wrong XML file and PNG file. The file looks short cuted at the end. The XML document contents itself a chunk of binary data (a bitmap dropped in the drgeo sketch), and the fragility seems to come from there. I already met fragilities with some file when loading older drgeo document, but I have not fully tracked the issue. What is wrong? The enclosed archive contains both files saved with the former and newer methods, both XML and PNG documents. Thanks Hilaire -- Dr. Geo http://drgeo.eu

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In Pharo 7 - are the Browsers in any particular order in the new menu?
by Tim Mackinnon June 22, 2018

June 22, 2018

Hi - in the new menu system (which I kind of like, and certainly see the value for new user, but worry about the loss of screen space for advanced users) - is the order of browsers specified for any particular reason? I ask, because the 2 main one System and Playground should both be at the top (in my opinion) but Iâm wondering if its in some specific order? Tim

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