Albertina Lourenci lourenci@lsi.usp.br wrote:
And artists only feel attracted towards friendly things.
Don't you find Squeak friendly and cute?
Could you please tell me where I can read more about this (MVC + Morphic)?
Maybe a good place to start is John Maloney's paper
http://coweb.cc.gatech.edu/squeakbook/35
(this is the chapter from
Squeak: Open Personal Computing and Multimedia edited by Mark Guzdial and Kim Rose Prentice-Hall)
On the Squeak list, John recently wrote:
Morphic is a graphical object system that's completely independent of MVC; you can even remove MVC from a Morphic Squeak image entirely.
The biggest difference is that Morphic has an incremental display update system that allows many graphical objects to be animating or updating at the same time, whereas in MVC only one window (controller) is active at any given time.
Morphic and MVC both have their strengths. MVC is better when memory or processor cycles are in short supply. It is smaller, simpler, and more efficient, but it doesn't do as many cool things. Morphic makes it easy to have a lot of things happening at once, and it helps the programmer create window contents that goes beyond text and list panes.
Which is a pretty fair (albeit brief!) summary from the horse's mouth.
Cheers
John
John Hinsley wrote: Dear John:
Heartfelt thanks for your cool message!!
Albertina Lourenci lourenci@lsi.usp.br wrote:
And artists only feel attracted towards friendly things.
Don't you find Squeak friendly and cute?
Seen it through Jecel's eyes it is amazing!!! Anyhow I am drowning here in a flood of nice papers. I am awfully excited with the next OOPSLA'01 program. The invited talks are amazing but see this one Peter Deutsch: Software transparency and object technologies! He says: We define software as transparent to the extent it is conceived, developed, documented, licensed, distributed, and cared for to intentionally facilitate reading, understanding analysis, validation, confidence; repair, adaptation, extension evolution; interoperation, integration, incorporation; sharing; and use.
I am excited about X-Programming and all the agile software! Here they talk and talk and talk and never say how they implement their stuff!!Now I am going to Vienna to the European Conference on Software Evolution and Sigsoft Symposium on Foundations of Software Evolution. I will attend a tutorial about X-programming extended to complex software. I hope I will come back enlightened!!! My software hopes to be transparent. So transparent that I will only start teaching when I can teach even a five-year-old child to handle it! This is why I need a very expressive and friendly language!!!
I am reading right now about the presentation-abstraction-control
architectural pattern (PAC). Frank Buschman et al define a structure for interactive software systems in the form of a hierarchy of cooperating agents. Here I can feel what an agent is, although it is not as musical as the paper on agent based approach from CACM< April 2001. But both do not show the implementation code!!!!!Nick , the author says I can implement it in any language, C Fortran Cobol and so on!!!!!
I get extremely disgusted when I hear such a statement!!!Why do nice conceptual papers hide views about implementation? Maybe because they are aware of their contradictions and do not want to face them!!! Experts do not really strive to be faithful to their source of inspiration.
Could you please tell me where I can read more about this (MVC + Morphic)?
Maybe a good place to start is John Maloney's paper
Pretty nice!!!
(this is the chapter from
Squeak: Open Personal Computing and Multimedia edited by Mark Guzdial and Kim Rose Prentice-Hall) Sounds great!
On the Squeak list, John recently wrote:
Morphic is a graphical object system that's completely independent of MVC; you can even remove MVC from a Morphic Squeak image entirely.
but if they have both I believe it is possible to make them interact! Buschman says design and architectural patterns are language independent! It is strange my ecodesign model is not language independent!Of course I can start implementing part of it in a language, other part in another language and so on.
But this does not rhyme with transparence!!! For me this is bad solution!!!
I hope X-programming is not something like this!!If it is I will hate it from the very deep of my heart!!!
The biggest difference is that Morphic has an incremental display update system that allows many graphical objects to be animating or updating at the same time, whereas in MVC only one window (controller) is active at any given time.
Of course I am fond of it! But I would like it to be like Pascal, Fortran C and so on where I studied by myself and managed to program better than the mathematicians and computer science graduate students!! I read hundreds of pages of the Self manual and yet if Jecel were next to me I would not be able to program a single line!!!! Beta and the Mjolner Beta system sound better! But I did not program in it!!
Morphic and MVC both have their strengths. MVC is better when memory or processor cycles are in short supply. It is smaller, simpler, and more efficient, but it doesn't do as many cool things. Morphic makes it easy to have a lot of things happening at once, and it helps the programmer create window contents that goes beyond text and list panes.
Which is a pretty fair (albeit brief!) summary from the horse's mouth.
Thanks again!! I do need to work with lots of experts. By October I will attempt to begin a joint thematic project here at Electrical Engineering uniting Departments of Energy and Automation and Electronic Systems Engineering. The electronic engineers here do not care at all if at the end I will have a running program or not. They just want to advance the domain model about energy installations to build an ecobuilding, the electrical systems to control temperature and so on. Of course I am excited with this in-depth incremental contribution to enhance my domain model but I want to be sure they will learn to model, I am sure I can teach them this but I want to see it implemented in a program similar to Self or better. All the people involved with Self is concerned with lots of things, less in making an intelligible tutorial!!!! Sigh!!!
And this situation is all around the world!!I have no chance of working with other people unless I make up my mind to lower my level and start behaving like architects just concerned with theory!!!My ideas are efficient and transparent if implemented! In a friendly language!!If not, they are sophisticated and hence worthless and unsustainable!!!
And soon I would feel like the Dutch graphical artist Maurits C. Escher who inspired my methodology!!!Alone and useless!!Yet he enchants the world now!!!And finally I am transforming his tilings into architecture as he wished when he was seventeen years old!!! Isn't it magic? Is it enough that I can understand this myself?
You see the prototile concept of Escher is the revolutionary thing in the tiling theory! Simply because he creates unique tiles that adapts to each other, birds into fishes, butterflies into snails and so on!!This the gist of the prototype!!It is fundamental for me! Classes are meaningless as are meaningless all the eight hundred pages of the beautiful book Tilings and Patterns from Gruenbaum and Shepphard!!Their only contribution to my research was to show mathematically that indeed Escher's prototiles made sense in mathematics!!!Moreover Jablan, an Jugoslavian mathematician translated all Escher's tilings into mathematical concept!!And I continue extending this further through the subgroup relationships of the plane!! In 1995 I would never dream of this!! Now I have it all!!
So will it happen the same with my pursuit in prototype based programming? I hope so!!!
Best wishes Albertina
Cheers
John
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John Hinsley wrote:
Could you please tell me where I can read more about this (MVC + Morphic)?
Maybe a good place to start is John Maloney's paper
http://coweb.cc.gatech.edu/squeakbook/35
(this is the chapter from
Squeak: Open Personal Computing and Multimedia edited by Mark Guzdial and Kim Rose Prentice-Hall)
Well John, in his next invited talk at OOPSLA'01 in Florida, Alistair Cockburn will say: in developing software, we swim in and depend on a sea of information, trying to find the bit we need to continue!! Well at the site above I found the right bit of information I needed!! Then I became enlightened as I wanted!!!Now I will proceed to the writing of my Scientific REport, presentation of paper at IWPSE in Vienna and another lecture at plenary session of a Semiotics Congress in Brazil held by Beaux Arts Schools of SÃo Paulo as if I were composing music!! I am tuned!!!
Having downloaded Embracing Change with Squeak: Extreme Programming by Sarkela, McDonough and Caster You see I bought the book extreme programming explained by Kent Beck in Budapest. I read through it and made up my mind I would learn nothing there!!And now this short paper brought me all I needed!!A pearl of knowledge indeed!!! In this example they test an event mechanism, an application similar to the Observer Pattern! The mechanism allows a model object to trigger synchronous event notifications, and observer objects may register an action which they will perform when that model object triggers a particular event notification- conceptually akin to a broadcast form of message send and so on... In this test he programs in Squeak and clearly explain why a basic tenet in X-programming is testing, why testing is the cornerstone of all coding activities!!!
Well then it dawned on me that all I have been doing is X-programming!!
This story of testing applies to any phase in the development of a knowledge system. For example I had to design a group of houses for families with children until 6 years old applying my ecodesign model to check the expressiveness of my method!! It worked superbly but made evident I needed to work with a geometry different from Euclidean geometry. I had no geometric modeling at the time but I applied without knowing the cyclic group concept to design them. And made a superb integration of structural plan with architectural plan and all aspects you can imagine, such as landscape planning, and so on!!! All this in 45 days!!! When Jecel and I simulated free sketch (I work in pair or more always!!) Jecel created a morph called ScreenDraft to test if our ideas would work before proceeding to their coding. It worked then he implemented ecoDesignpolygonMorph, tilingMorph, Diagram Morph and so on....
Just amazing!!!I wonder whether you can imagine how extremely grateful to you I am!!! This is precise, concise, holistic information as an artist appreciates!!! Yes, cute and friendly! Yes, I am surprised that I managed to read all code written in Smalltalk and Squeak!!Is it Self's influence?
Have a good night's sleep!!!
Albertina
(XP) I became enlightened as I wanted!!!
On the Squeak list, John recently wrote:
Morphic is a graphical object system that's completely independent of MVC; you can even remove MVC from a Morphic Squeak image entirely.
The biggest difference is that Morphic has an incremental display update system that allows many graphical objects to be animating or updating at the same time, whereas in MVC only one window (controller) is active at any given time.
Morphic and MVC both have their strengths. MVC is better when memory or processor cycles are in short supply. It is smaller, simpler, and more efficient, but it doesn't do as many cool things. Morphic makes it easy to have a lot of things happening at once, and it helps the programmer create window contents that goes beyond text and list panes.
Which is a pretty fair (albeit brief!) summary from the horse's mouth.
Cheers
John
-- Can't cope anymore? Desperate for help? Join the 12 step program for those who yearn to give up Microsoft: http://home.earthlink.net/~penguinrox/index.html
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
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Albertina Lourenci -
John Hinsley