Beginners February 2015

beginners@lists.squeakfoundation.org

20 participants
12 discussions

Feedback: Using Output as the Next Input
by Dan 03 May '15

03 May '15

Howdy, A class is instantiated and produces output in a data structure (array, collection, dictionary, ...). Upon each later (maybe months later) instantiation, the previous output is needed as input. What is the best way to do this for modest (not huge) output? Some possibilities: Externally - file out and file in Within the class - compile class methods containing the output; save with Montecello I'm interested in how to dynamically compile a class method. Can Browser be invoked dynamically? In studying Browser and friends, it looks complicated. Am I missing something or attempting something foolish or ...? - Dan

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Re: [Newbies] Feedback: Using Output as the Next Input
by Dan 01 May '15

01 May '15

On 5 Dec 2014 at 1:13, Bert Freudenberg wrote: > > > On 05.12.2014, at 00:49, Dan <dnorton(a)mindspring.com> wrote: > > > > On 4 Dec 2014 at 23:22, Bert Freudenberg wrote: > > > >> > >>> On 04.12.2014, at 23:14, Dan <dnorton(a)mindspring.com> wrote: > >>> > >>> Howdy, > >>> > >>> A class is instantiated and produces output in a data > structure > >> (array, collection, dictionary, > >>> ...). Upon each later (maybe months later) instantiation, the > >> previous output is needed as > >>> input. What is the best way to do this for modest (not huge) > >> output? Some possibilities: > >>> Externally - file out and file in > >>> Within the class - compile class methods containing the > output; > >> save with Montecello > >>> > >>> I'm interested in how to dynamically compile a class method. > Can > >> Browser be invoked > >>> dynamically? In studying Browser and friends, it looks > >> complicated. Am I missing something > >>> or attempting something foolish or ...? > >> > >> Why wouldn't you just keep the "output" in the image and save > it? > >> When you restart it months later, it will be there. > >> > >> - Bert - > >> > > That surely is simpler than trying to compile a method. > > Not that compiling a method is hard. > That is encouraging. Is it something similar to "Dynamic Message Calling" described in the Terse Guide to Squeak? > > I might put something like this in a package. > > I'm not sure what you mean by that. > I mean a package on SqueakMap where one can download it and try it out. I see there are over 700 packages out there for the choosing. A great variety. It's unfortunate that not all run on the current release of Squeak but maybe with a little work... ;) > > Would users find saving the image as... to be the expected way of > doing things? > > > > - Dan > > Depends on who your users are. If you were the user ... you're > saving your image all the time, right? > Um, not exactly. But more often than in the past. I feel most comfortable saving with Montecello. > Maybe you should be more specific in what data you want to store, > how you want to distribute it, and who is going to use it. > I have in mind a list of names which are matched randomly in pairs then filtered according to a set of rules. The output is a dictionary and the rules specify that no pair can be the same as previous (up to 3) instances. There are other rules and often hundreds of iterations take place before all pairs obey all the rules. It might be used, as it is in our family, to draw names for Christmas. The person who runs the program distributes the results to those on the list. - Dan

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How to round a float?
by Chuck Hipschman 23 Feb '15

23 Feb '15

7 / 8.0 roundTo: 2 I expect 0.88, I get 0 What am I doing wrong, or this a bug? TIA Chuck

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Is there a preference setting to block automatic parentheses?
by Kirk Fraser 22 Feb '15

22 Feb '15

The automatic supply of the right parenthesis when a left parenthesis is typed appears to cost me more time in deleting the extra than it saves in the more rare events when I can use the feature. How can I safely stop it for all the p, brackets, and curly braces? Thanks. Kirk W. Fraser w <http://freetom.info/TrueChurch>ww.JesusGospelChurch.com <http://www.JesusGospelChurch.com> - Replace the fraud churches with the true church. http://freetom.info - Example of False Justice common in America

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Re: [Newbies] Is there a preference setting to block automatic parentheses?
by Dan 21 Feb '15

21 Feb '15

> On Sat, 21 Feb 2015, Bert Freudenberg wrote: >I love the feature (in other editors), but hate its current behavior. If that one is >better, why don't we use that? +1 -but retain the preference so it can be turned off.

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How do I start Squeak on Raspberry Pi ?
by Kirk Fraser 19 Feb '15

19 Feb '15

I have Squeak 4.5 All-In-One working in Kbuntu Linux after downloading, unzipping, and executing Squeak.sh Attempting the same on a Raspberry Pi with the default OS, it downloads, unzips, and says squeak.sh is an executable file, do I want to execute? I click execute then it does nothing. What is needed to make it work? I am working to hopefully get eToys video to work on Squeak 4.5 on a Pi 1 or 2, the cheapest computer I know about. Thanks. Kirk W. Fraser

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How to run Squeak on Raspberry Pi
by Kirk Fraser 19 Feb '15

19 Feb '15

Thanks Tim for this help. 1) Download squeak and extract it. 2) Copy these three files from contents/resources to squeak folder A '.image' file - you'll find Squeak4.5-13860.image A '.changes' file - you'll find Squeak4.5-13860.changes A '.sources' file - should be Squeak4.1.sources 3) open a terminal type in squeak or 4) make a desktop file "squeak" with the content "squeak" and it works. Kirk W. Fraser w <http://freetom.info/TrueChurch>ww.JesusGospelChurch.com <http://www.JesusGospelChurch.com> - Replace the fraud churches with the true church. http://freetom.info - Example of False Justice common in America

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What PATH makes Squeak work on Raspberry Pi?
by Kirk Fraser 18 Feb '15

18 Feb '15

Amazingly I'm sending this email from my Pi. I made this squeak.sh file for my Pi desktop. Double click produces nothing after the request to execute pop-up menu. Entering each line in a Terminal on the last statement closes the terminal. Suggestions please? Thanks. PATH=/home/pi/Squeak-4.5-All-In-One/Squeak-4.5-All-in-One.app/Contents/ VM="/home/pi/Squeak-4.5-All-In-One/Squeak-4.5-All-in-One.app/Contents/LinuxAndWindows/Linux-i686/bin/squeak" IMAGE="/home/pi/Squeak-4.5-All-In-One/Squeak-4.5-All-in-One.app/Contents/Resources/Squeak4.5-13680.image" exec "$VM" "$IMAGE" Kirk W. Fraser w <http://freetom.info/TrueChurch>ww.JesusGospelChurch.com <http://www.JesusGospelChurch.com> - Replace the fraud churches with the true church. http://freetom.info - Example of False Justice common in America

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How to doubble sort a collection
by Raymond Asselin 17 Feb '15

17 Feb '15

I have this kind of sorting on anOrderedCollection BlocNotes >>sortedNotes ^notes sorted:[:a :b | a date > b date] This sort my notes on date but I want them sort by date AND inside a date by hours and I don't khow how to do this. Some insights? aNote = 'med com date temps' instancesVariables what I call hours = temps witch is a number like 2123 for 21h23 Some insights?

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Video4Squeak
by Kirk Fraser 06 Feb '15

06 Feb '15

How do I get started with Video4Squeak from Physical Etoys? I have moved the video and audio .dll'[s and code to Squeak 4.5 but I don't know how to start a camera displaying. I want to work with the video to do machine vision like will be done in the DARPA Robotics Challenge. I know the first step after getting the software to work with a camera is to calculate contours. But I cannot find the Video4Squeak author or how to make it work and access the video frames to recognize visual objects. I looked at all the Smalltalk code but I don't even understand where the code access the CameraPlugin.dll to be sure it's looking in the correct directory or working at all. Suggestions? Thank you. Kirk W. Fraser w <http://freetom.info/TrueChurch>ww.JesusGospelChurch.com <http://www.JesusGospelChurch.com> - Replace the fraud churches with the true church. http://freetom.info - Example of False Justice common in America

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Beginners February 2015