cool I really want to see how we can get a nice momentum on that front :) Stef On May 31, 2010, at 4:45 PM, Juan Vuletich wrote:

Hi Stef, Igor,

(copied Igor too)

Stéphane Ducasse wrote:

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On May 30, 2010, at 10:57 PM, Igor Stasenko wrote:

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On 30 May 2010 23:08, Stéphane Ducasse <stephane.ducasse@inria.fr> wrote:

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cool post

Yeah, these things are quite interesting. Except that not much people actually interested in it :)

I do not think so. Good posts are read more that you believe. Now in mailing-list the numbers of mails cut the knowledge after a point.

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Here's another thing, which can be done right (if we want).

Rome/OpenVG Paths is actually nothing else than a special kind of more general thing - shape.

So, at very basis, we should have only two components for painting: shape and paint. And in fact we need to support only a single operation: fill the shape with given paint. (The path stroke could be seen as a special kind of fill)

So the question is: Really. Why we should constrain ourselves with specific things from a very starting, by cutting out a most basic (and abstact ideas) behind?

There are infinite number of ways, how one could define a shape. While paths is only a small, yet effective representation of shapes. In same way there are infinite number of ways how one could define a paint.

Then this looks like a strong basis for building-up a powerful & flexible graphics engine :)

I do not know. Do the other frameworks outside smalltalk use something else than paths? I think that we should start - making rome working. We are nearly there - test it - refactor it. - I would like to see the canvas for morphic30 too. - refactor the system to use that. stef

The current Morphic 3 canvas is based on SVG / OpenVG. The main element is the path. But the fundamental building block is a trajectory of a pen that defines shapes, and fills. So it is easy to extend to ways to define shapes other than paths.

BTW, the Morphic 3 canvas is separated from the Morphs and their geometry. This means that Morphic 3 morphs could be used with Athens / Rome / Cairo, or even with Balloon. It also means that the Morphic 3 canvas could be used with Morphic 2, Tweak or any other framework that can call an OpenVG like api.

I'm working on an update to the Morphic 3 web page right now. Will be ready today or tomorrow, and it will include some actual samples of rendering.

Cheers, Juan Vuletich