February 2014 - Pharo-users

Re: [Pharo-users] Xs&Os game

by kilon alios

well done , now you only need to add a computer opponent, since playing against myself is boring because I win and lose every single time :D On Mon, Feb 3, 2014 at 12:40 PM, ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com> wrote: > To play it just type in workspace following: XsAndOsGame new openInWorld > > > 2014-02-03 ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com>: > > Hello, everyone! >> >> I'm working on Xs&Os game (or tic tac toe) to learn pharo. Already >> uploaded a first version. Game is boring and very simple, but if somebody >> is interested here is a link: >> >> http://smalltalkhub.com/#!/~MarkRizun/XsAndOsGame/ >> >> As a novice in pharo, waiting for comments and advice. >> Ð¡ritique is welcome too ;) >> >> Regards, Mark. >> > >

Feb. 3, 2014

Re: [Pharo-users] Could Pharo be more idiot-proof?

by PBK Research

Ben Brilliant! Many thanks, it's all there! I just need to find my way around Pharo - there is so much there. Peter _____ From: Pharo-users [mailto:pharo-users-bounces@lists.pharo.org] On Behalf Of Benjamin Sent: 03 February 2014 10:38 To: Any question about pharo is welcome Subject: Re: [Pharo-users] Could Pharo be more idiot-proof? Open a new workspace. In the title bar there is a small black triangle (Window menu). Close to the end, you should find 'Previous contents' With a bit of luck, it should be there Ben On 03 Feb 2014, at 11:35, PBK Research <peter(a)pbkresearch.co.uk> wrote: I have just done something stupid, so this is just letting off steam (and maybe looking for someone else to blame!). I have been playing with Moose (version 4.8), mainly because I want to experiment with PetitParser. I am struggling a bit, but getting somewhere I think. I have been trying out a lot of snippets in a workspace, before getting down to producing proper code. In a fit of madness, thinking I was closing a debugger window, I closed the workspace window. It looks as though I have lost the contents, though I can probably reconstruct them from the changes file. My main Smalltalk experience is with Dolphin Smalltalk, and there, if you try to close a workspace, it asks if you want to save the contents first. Could Pharo have something similar? - or am I the only idiot to do this? As a supplementary point, I am trying to use PetitParser to parse natural language. From the examples it is clear that PP is designed with formal languages in mind. Am I wasting my time using it on natural languages? Has anyone else tried this? Thanks for any advice Peter Kenny

Feb. 3, 2014

Re: [Pharo-users] Xs&Os game

by ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½

To play it just type in workspace following: XsAndOsGame new openInWorld 2014-02-03 ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com>: > Hello, everyone! > > I'm working on Xs&Os game (or tic tac toe) to learn pharo. Already > uploaded a first version. Game is boring and very simple, but if somebody > is interested here is a link: > > http://smalltalkhub.com/#!/~MarkRizun/XsAndOsGame/ > > As a novice in pharo, waiting for comments and advice. > Ð¡ritique is welcome too ;) > > Regards, Mark. >

Feb. 3, 2014

Xs&Os game

by ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½

Hello, everyone! I'm working on Xs&Os game (or tic tac toe) to learn pharo. Already uploaded a first version. Game is boring and very simple, but if somebody is interested here is a link: http://smalltalkhub.com/#!/~MarkRizun/XsAndOsGame/ As a novice in pharo, waiting for comments and advice. Ð¡ritique is welcome too ;) Regards, Mark.

Feb. 3, 2014

Re: [Pharo-users] Could Pharo be more idiot-proof?

by Benjamin

Open a new workspace. In the title bar there is a small black triangle (Window menu). Close to the end, you should find âPrevious contents' With a bit of luck, it should be there Ben On 03 Feb 2014, at 11:35, PBK Research <peter(a)pbkresearch.co.uk> wrote: > I have just done something stupid, so this is just letting off steam (and maybe looking for someone else to blame!). > > I have been playing with Moose (version 4.8), mainly because I want to experiment with PetitParser. I am struggling a bit, but getting somewhere I think. I have been trying out a lot of snippets in a workspace, before getting down to producing proper code. In a fit of madness, thinking I was closing a debugger window, I closed the workspace window. It looks as though I have lost the contents, though I can probably reconstruct them from the changes file. My main Smalltalk experience is with Dolphin Smalltalk, and there, if you try to close a workspace, it asks if you want to save the contents first. Could Pharo have something similar? - or am I the only idiot to do this? > > As a supplementary point, I am trying to use PetitParser to parse natural language. From the examples it is clear that PP is designed with formal languages in mind. Am I wasting my time using it on natural languages? Has anyone else tried this? > > Thanks for any advice > > Peter Kenny

Feb. 3, 2014

Could Pharo be more idiot-proof?

by PBK Research

I have just done something stupid, so this is just letting off steam (and maybe looking for someone else to blame!). I have been playing with Moose (version 4.8), mainly because I want to experiment with PetitParser. I am struggling a bit, but getting somewhere I think. I have been trying out a lot of snippets in a workspace, before getting down to producing proper code. In a fit of madness, thinking I was closing a debugger window, I closed the workspace window. It looks as though I have lost the contents, though I can probably reconstruct them from the changes file. My main Smalltalk experience is with Dolphin Smalltalk, and there, if you try to close a workspace, it asks if you want to save the contents first. Could Pharo have something similar? - or am I the only idiot to do this? As a supplementary point, I am trying to use PetitParser to parse natural language. From the examples it is clear that PP is designed with formal languages in mind. Am I wasting my time using it on natural languages? Has anyone else tried this? Thanks for any advice Peter Kenny

Feb. 3, 2014

Re: [Pharo-users] Hyperion (vector graphics editor and GUI designer using Athens)

by kilon alios

Thank you Bob . I almost completely missed your post cause Pharo-dev has exploded with messages lately. Sorry for the late reply. Its awesome that you land the solution to my plate, cant thank you enough.The books you recommended are exactly what I needed. I see also there is even a github repo here -> https://github.com/erich666/GraphicsGems . I am definitely going to study them. Unfortunately I am new to coding graphics and completely unfamiliar with GIS and CAD. I plan to use Ephestos for interfacing with Blender though ( I have been developing Blender python addons before using Pharo) . What kind of assistance you are looking for ? On Sat, Feb 1, 2014 at 4:27 PM, Bob Williams <rwilliams19(a)cox.net> wrote: > Kilon > > I can probably help you as it was in a Smalltalk application that I > developed in the early 1990s, ObjectiveFM, for my doctoral dissertation and > later was a commercial product. The method is below and it is for a cubic > Bezier spline. I am considering add a GIS package to Pharo and would like > to have assistance. I would also note that you should look at the series of > books called Graphics Gems (5 books) that are a great resource. > > Bob Williams > > > correlatesTo: testPoint within: correlationDistance > > | dz index point return singleSpline aPoint testReturn | > "self halt." > aPoint := testPoint. > return := nil. > dz := self controlPoints first - aPoint. > ((dz dotProduct: dz) < self minimumDistance) > ifTrue: [ > ^ self controlPoints first ]. > > dz := self controlPoints last - aPoint. > ((dz dotProduct: dz) < self minimumDistance) > ifTrue: [ > ^ self controlPoints last]. > > index := -2. > ((controlPoints size) // 3) timesRepeat: [ > index := index + 3. > "eliminate segments from consideration if the bounding box about them > does not contain aPoint" > singleSpline := OFMSingleBezierSpline createFrom: > (Array > with: (controlPoints at: index) > with: (controlPoints at: index +1) > with: (controlPoints at: index +2) > with: (controlPoints at: index +3) > > point := singleSpline nearestPointOnCurveFor: aPoint. > (point notNil) > ifTrue: [ > ((point distanceFrom: aPoint) <= correlationDistance) > ifTrue: [ testReturn := true ] > ifFalse: [ testReturn := false ] ] > ifFalse: [ > point := ((singleSpline z1 distanceFrom: aPoint) < > (singleSpline z2 distanceFrom: aPoint)) > ifTrue: [ singleSpline z1 ] ifFalse: [singleSpline z2 ]. > ((point distanceFrom: aPoint) < correlationDistance) > ifTrue: [ testReturn := true ] > ifFalse: [ testReturn := false ] ]. > (testReturn) > ifTrue: [ > (return isNil) > ifTrue: [ > return := point ] > ifFalse: [ > ((point distanceFrom: aPoint) < (return > distanceFrom: aPoint)) > ifTrue: [return := point] ]]]. > ^return >

Feb. 3, 2014

Re: [Pharo-users] creating a png filereference in memory

by Tudor Girba

I see. However, I still do not understand two things: 1. Why does it work if I read and write to the file system? f := FileSystem disk workingDirectory / 'pharoicon.png'. f writeStreamDo: [ :stream | PNGReadWriter putForm: ThemeIcons current pharoIcon onStream: stream ]. f readStreamDo: [ :stream | PNGReadWriter formFromStream: stream binary ] 2. Why is binaryReadStreamDo: not equivalent to: f := FileSystem memory workingDirectory / 'pharoicon.png'. f writeStreamDo: [ :stream | PNGReadWriter putForm: ThemeIcons current pharoIcon onStream: stream ]. f *readStreamDo:* [ :stream | PNGReadWriter formFromStream: stream *binary*] Cheers, Doru On Sun, Feb 2, 2014 at 11:23 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > On 02 Feb 2014, at 22:13, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > > Thanks! That worked. > > > > What is the difference? > > It's a complicated story ;-) > > > https://pharo.fogbugz.com/f/cases/12259/FileSystem-memory-reads-writes-usin… > > > Doru > > > > > > > > > > On Sun, Feb 2, 2014 at 9:19 PM, Sven Van Caekenberghe <sven(a)stfx.eu> > wrote: > > Doru, > > > > I think you will need the new #binaryReadStream or #binaryReadStreamDo: > > > > Sven > > > > On 02 Feb 2014, at 20:15, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > > > > Hi, > > > > > > I have troubles creating a PNG file in memory. > > > > > > I can create a PNG file on disk and load it back without problems: > > > f := FileSystem disk workingDirectory / 'pharoicon.png'. > > > f writeStreamDo: [ :stream | > > > PNGReadWriter > > > putForm: ThemeIcons current pharoIcon > > > onStream: stream ]. > > > f readStreamDo: [ :stream | PNGReadWriter formFromStream: stream > binary ] > > > > > > But, when I try the same thing in memory, I get an exception for > incorrect format: > > > f := FileSystem memory workingDirectory / 'pharoicon.png'. > > > f writeStreamDo: [ :stream | > > > PNGReadWriter > > > putForm: ThemeIcons current pharoIcon > > > onStream: stream ]. > > > f readStreamDo: [ :stream | PNGReadWriter formFromStream: stream > binary ] > > > > > > Can anyone point me to what am I doing wrong? > > > > > > Doru > > > > > > > > > -- > > > www.tudorgirba.com > > > > > > "Every thing has its own flow" > > > > > > > > > > > > -- > > www.tudorgirba.com > > > > "Every thing has its own flow" > > > -- www.tudorgirba.com "Every thing has its own flow"

Feb. 3, 2014

Re: [Pharo-users] creating a png filereference in memory

by Sven Van Caekenberghe

On 02 Feb 2014, at 22:13, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Thanks! That worked. > > What is the difference? It's a complicated story ;-) https://pharo.fogbugz.com/f/cases/12259/FileSystem-memory-reads-writes-usin… > Doru > > > > > On Sun, Feb 2, 2014 at 9:19 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Doru, > > I think you will need the new #binaryReadStream or #binaryReadStreamDo: > > Sven > > On 02 Feb 2014, at 20:15, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > > Hi, > > > > I have troubles creating a PNG file in memory. > > > > I can create a PNG file on disk and load it back without problems: > > f := FileSystem disk workingDirectory / 'pharoicon.png'. > > f writeStreamDo: [ :stream | > > PNGReadWriter > > putForm: ThemeIcons current pharoIcon > > onStream: stream ]. > > f readStreamDo: [ :stream | PNGReadWriter formFromStream: stream binary ] > > > > But, when I try the same thing in memory, I get an exception for incorrect format: > > f := FileSystem memory workingDirectory / 'pharoicon.png'. > > f writeStreamDo: [ :stream | > > PNGReadWriter > > putForm: ThemeIcons current pharoIcon > > onStream: stream ]. > > f readStreamDo: [ :stream | PNGReadWriter formFromStream: stream binary ] > > > > Can anyone point me to what am I doing wrong? > > > > Doru > > > > > > -- > > www.tudorgirba.com > > > > "Every thing has its own flow" > > > > > > -- > www.tudorgirba.com > > "Every thing has its own flow"

Feb. 2, 2014

Re: [Pharo-users] iStoa, some new

by Carlo

Hi Hillaire I pulled the code from smalltalhub and the resources, into pharo3. The LEDMorph dependency was resolved by pulling it from PharoExtras. I couldnât find a starting point for demo so I tried the following in a workspace: Stoa beUnix. StoaApp current show. But not having much luck. Do you have any workspace scripts you use to test your app? Thanks Carlo On 01 Feb 2014, at 9:16 PM, Hilaire Fernandes <hilaire.fernandes(a)gmail.com> wrote: Hello, Some newer screenshots about iStoa. To try, some instructions there [2] Hilaire [1] https://launchpad.net/istoa [2] http://bazaar.launchpad.net/~hilaire-fernandes/istoa/trunk/view/head:/README -- Dr. Geo http://drgeo.eu <sshot1.jpeg><sshot2.jpeg><sshot3.jpeg><sshot4.jpeg><sshot5.jpeg><score.jpeg>

Feb. 2, 2014