May 2014 - Pharo-dev - lists.pharo.org

Re: [Pharo-dev] Pharo 3.0 Released!

by stepharo

Thanks you all. I love this page http://www.pharo.org/about especially the contributors list :)

May 1, 2014

Re: [Pharo-dev] Pharo 3.0 / Roassal2 / Ubuntu

by Marcus Denker

On 01 May 2014, at 09:36, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Nice, let's copy that to the Pharo YouTube channelâ¦ > Done: https://www.youtube.com/watch?v=8wQjFzy8tj0 > On 01 May 2014, at 03:31, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > >> Hi Volkert, >> >> You need to install the true type font. Unfortunately, Pharo3 does not do it for you. I guess this will be fixed in the next release of Pharo. >> >> I have made a very short video on how to install Roassal2 from scratch: >> https://dl.dropboxusercontent.com/u/31543901/TMP/InstallingTrueTypeFont.mov >> >> Let us know how it goes. >> >> Alexandre >> >> >> On Apr 30, 2014, at 2:53 PM, volkert(a)nivoba.de wrote: >> >>> Dear all, >>> >>> i just downloaded Pharo 3.0 and installed Roassal2 via Configuration Manager (Stable Version). >>> When trying the "Roassal examples" (from Tool-Menu) i got an red screen. >>> >>> Platform Ubuntu 14.04LTS >>> Pharo3.0 Latest update: #30846 >>> >>> Need some help :-) >>> >>> BW, >>> Volkert >>> >> >> -- >> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: >> Alexandre Bergel http://www.bergel.eu >> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. >> >> >> >> > >

May 1, 2014

Re: [Pharo-dev] 13204 Hard to see Morph halo label

by stepharo

OK I understand. Stef On 18/4/14 01:12, Sean P. DeNigris wrote: > pharo4Stef(a)free.fr wrote >> Why not just a StringMorph with correct background? > That doesn't look possible with the current implementation. It just draws > the string with no background: > StringMorph>>#drawOn: aCanvas > ... > "super drawOn: aCanvas. <- This line doesn't exist" > aCanvas drawString: contents in: bnd font: self fontToUse color: color. > > >From the "... color: color" above, it looks like StringMorph is hijacking > the instVar it inherited from Morph, which usually means background color, > to use for the text color. > > If you hack drawOn: to > ... > self color: Color white. > super drawOn: aCanvas. > aCanvas drawString: contents in: bnd font: self fontToUse color: Color > black. > you get the halo label you're looking for but of course break everything > else. > > So I think that if we want StringMorphs to have backgrounds, we have to add > a textColor instVar, initialize color to Color transparent, and rewrite all > color assignments in StringMorph to set textColor. > > In short: not for 3.0. > > > > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/13204-Hard-to-see-Morph-halo-label-tp4755115p4755242.… > Sent from the Pharo Smalltalk Developers mailing list archive at Nabble.com. > >

May 1, 2014

About fonts

by stepharo

Hi pharoers I found the problems with the fonts and now I understand one of the possible way Roassal got broken. Imagine the following FT is on -> roassal works perfectly (using vectorial fonts) the standard fonts (default, code and others) are using vector graphics font. I deselect FT -> defaults and other are now in strike fonts like vera I reselect FT -> the defaults are still in strike fonts and this will then lead to errors in roassal. So I think that we should have a real object handling the restore and others. I will try to have a look in the end of the week. stef

May 1, 2014

Re: [Pharo-dev] Pharo 3.0 / Roassal2 / Ubuntu

by volkert＠nivoba.de

Yes yes yes ... it works. I quickly jumped through some examples. Roassal2 looks so nice. Thank you. BW, Volkert Am 01.05.2014 03:31, schrieb Alexandre Bergel: > Hi Volkert, > > You need to install the true type font. Unfortunately, Pharo3 does not do it for you. I guess this will be fixed in the next release of Pharo. > > I have made a very short video on how to install Roassal2 from scratch: > https://dl.dropboxusercontent.com/u/31543901/TMP/InstallingTrueTypeFont.mov > > Let us know how it goes. > > Alexandre > > > On Apr 30, 2014, at 2:53 PM, volkert(a)nivoba.de wrote: > >> Dear all, >> >> i just downloaded Pharo 3.0 and installed Roassal2 via Configuration Manager (Stable Version). >> When trying the "Roassal examples" (from Tool-Menu) i got an red screen. >> >> Platform Ubuntu 14.04LTS >> Pharo3.0 Latest update: #30846 >> >> Need some help :-) >> >> BW, >> Volkert >>

May 1, 2014

Re: [Pharo-dev] Pharo 3.0 / Roassal2 / Ubuntu

by Sven Van Caekenberghe

Nice, let's copy that to the Pharo YouTube channel... On 01 May 2014, at 03:31, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Hi Volkert, > > You need to install the true type font. Unfortunately, Pharo3 does not do it for you. I guess this will be fixed in the next release of Pharo. > > I have made a very short video on how to install Roassal2 from scratch: > https://dl.dropboxusercontent.com/u/31543901/TMP/InstallingTrueTypeFont.mov > > Let us know how it goes. > > Alexandre > > > On Apr 30, 2014, at 2:53 PM, volkert(a)nivoba.de wrote: > >> Dear all, >> >> i just downloaded Pharo 3.0 and installed Roassal2 via Configuration Manager (Stable Version). >> When trying the "Roassal examples" (from Tool-Menu) i got an red screen. >> >> Platform Ubuntu 14.04LTS >> Pharo3.0 Latest update: #30846 >> >> Need some help :-) >> >> BW, >> Volkert >> > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > >

May 1, 2014

Re: [Pharo-dev] [Pharo-users] Pharo 3 minor issue

by Esteban Lorenzano

thanks for reporting, I will look at it (super weird that it did not arise before :( ) Esteban On 30 Apr 2014, at 20:54, giorgio ferraris <giorgio.ferraris(a)gmail.com> wrote: > Hi, > > started looking at Pharo after many years. > First of all, you all did an awesome works, thank you! > There is a small problems on System Browser > open image > open system browser > choose one class > select group > The class side checkbox is enabled, if you check it, you get a wall bak . > Giorgio > > <Screen Shot 2014-04-30 at 20.42.03.jpg>

May 1, 2014

Pharo 3 and Sound

by jannik laval

I remember that the VM+ plugin were fixed. But these changes seems not present in Pharo3-win (installer zip). After loading PharoSound from ConfigurationBrowser, I execute this line: SoundPlayer boinkScale On MacOS it works, not on Windows Cheers -- ~~Jannik Laval~~ Ãcole des Mines de Douai Enseignant-chercheur http://www.jannik-laval.eu http://www.phratch.com http://car.mines-douai.fr/

May 1, 2014

Re: [Pharo-dev] how can I have a working roassal 3d ?

by ClÃ©ment Bera

OK, I didn't know it was that complex, I've always used 2D or 3D isometric until now. So I can't do it it would take me too much time :-( I can't wait to see your fractal terrain demo. Keep us in touch. 2014-04-30 18:37 GMT-07:00 Ronie Salgado <roniesalg(a)gmail.com>: > You don't draw a shape with an array of points, unless you are using a > voxel engine or a volumetric renderer. In 3D graphics you usually are > drawing surfaces composed of triangles. There's R3MeshBuilder and > R3MeshShape for drawing generic meshes. I believe there examples are a bit > hidden. For each vertex in a triangle you have specify: > - Position > - Surface normal value at position > - Color > - Texture coordinates. Used if the material has a texture. > > In 3D, the problem of fractals is what kind of fractal you want make. A > rough classification is like this: > - 2D textures > - Solid textures > - Displacement maps. This is used for terrain heights. > - Hyper-textures > > For images of them, this talk of Ken Perlin > http://www.noisemachine.com/talk1/ is really good. > The first three ones are easy to make, but to do them efficiently and > animated in real-time you need offload the computation to the GPU by using > shaders or OpenCL. > > A hyper texture defines a density function for each point in the space. > This requires a volumetric renderer. which is really hard to make in > OpenGL. But you get volumetric smoke, clouds and very cool things. > > I actually have to make a demo with fractal/multifractal terrains, for a > course about computational geometry I am taking, and I choose to use Pharo. > But I want to use OpenCL for the computation because I can make things more > flexible easily but in the expense of complicating the synchronization. I > am starting this personal project to start making a 3D game engine in Pharo > and also for as an opportunity to take all the low-level graphics out of > Roassal 3D. > > When I have something to show, I will be posting it. > > Regards > Ronie > > 2014-04-30 19:43 GMT-04:00 ClÃ©ment Bera <bera.clement(a)gmail.com>: > > >> >> 2014-04-30 11:32 GMT-07:00 Ronie Salgado <roniesalg(a)gmail.com>: >> >> Hi ClÃ©ment, >>> >>> There is not a stable version available, in fact Roassal3D requires the >>> bleeding edge version of NBOpenGL to work, which is producing your error. >>> Try loading Roassal3D using the following Gofer script, which is available >>> in the Roassal3D smalltalk hub >>> http://smalltalkhub.com/#!/~ronsaldo/roassal3d : >>> >>> Gofer new smalltalkhubUser: 'ronsaldo' project: 'roassal3d'; package: >>> 'ConfigurationOfRoassal3d'; load. (Smalltalk at: #ConfigurationOfRoassal3d) >>> loadDevelopment >>> >>> For 3D fractals, I haven't added support for them. That sounds like an >>> interesting idea. >>> >> >> What do you mean there is no support for fractals ? Can you draw a 3D >> shape based on an Array of Point3D ? >> >> Fractals are nice because they impress people on demos and they are fun >> to implement, however I don't know if they represent a common use case for >> business applications. >> >> Regards >> Clement >> >>> >>> Greetings, >>> Ronie >>> >>> >>> 2014-04-30 14:09 GMT-04:00 Sven Van Caekenberghe <sven(a)stfx.eu>: >>> >>> The 2D stuff works for me, but there seems to be a problem with the 3D >>>> stuff. >>>> >>>> I hope the Rossal developers can fix this soon, since we're showing off >>>> Rossal with the 3.0 release.... >>>> >>>> On 30 Apr 2014, at 18:53, ClÃ©ment Bera <bera.clement(a)gmail.com> wrote: >>>> >>>> > Hello, >>>> > >>>> > I wanted to show some 3D visualization with Pharo to some people >>>> (because you know, non IT people are only impressed by robots and 3d, so I >>>> cannot show them a compiler). >>>> > >>>> > On the Pharo 3 release, in the configuration browser, I clicked on >>>> Roassal3d then 'Install stable version'. >>>> > >>>> > Then I was not able to run a single example of R3Example, I always >>>> got: >>>> > >>>> > <Screen Shot 2014-04-30 at 9.51.42 AM.png> >>>> > >>>> > How can I have an image with Roassal3D working ? >>>> > >>>> > I would like to try to draw a 3D fractal too (I love fractals). >>>> > >>>> > Thanks ! >>>> >>>> >>>> >>> >> >

May 1, 2014

Unix interop (was: a Pharo talk from a ruby conference)

by David T. Lewis

On Tue, Apr 29, 2014 at 07:15:30AM -0700, Sean P. DeNigris wrote: > > Same goes with Unix interop. REPL is easy, but is it documented and > marketed? What would it take to easily pipe output of other programs to > Pharo? Maybe be able to sourceCodeString exportAsUnixCommand: > '/usr/bin/my_cool_command' That's what CommandShell/OSProcess is for. For example: sourceCodeString := 'ls -l | cat | cat | cat'. (ProxyPipeline command: sourceCodeString) upToEndOfFile Dave

May 1, 2014