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Re: Feature request: Gradients: contours, matrices and...

From: ddailey <ddailey@zoominternet.net>
Date: Sat, 13 Nov 2010 12:00:29 -0500
Message-ID: <453AB3C1CCCB4E508518C2A6268B2A25@disxgdg31szkx7>
To: "Jonathan Chetwynd" <j.chetwynd@btinternet.com>, "www-svg" <www-svg@w3.org>
Cc: "Eric Elder" <ericjelder@gmail.com>, "Israel Eisenberg" <owlgems@yahoo.com>
Agreed, Jonathan,

There seems to be a large number of different things being considered in 
this light: diffusion curves, mesh gradients, contour (sort of like tweening 
that has been part of Illustrator since 1987), tubefy and allied concepts, 
vector effects, some of the ideas presented by Andrei Matseevsky, and 
<replicate>. I think that having mathematicians as invited experts is a good 
idea, for a variety of issues in computational graphics, but the "easy to 
understand and implement" criterion would (in my opinion, wearing either a 
mathematician's or a cognitive psychologist's hat) tend to be,  <replicate> 
since it is a) based on technologies already implemented by most viewers b) 
easily understood, being a simple extension of basic cognitive styles 
already ubiquitous within SVG  c) superordinate (feature-wise) to some of 
the others and d) extensible into other realms (like 2.5D effects, 
animations, patterning and texturing). 
http://srufaculty.sru.edu/david.dailey/svg/SVGOpen2010/replicate.htm 
contains our early work on this. We're preparing a more formal proposal on 
the subject, having received positive feedback from several of the SVG WG 
members and lukewarm reception by others. The lukewarmness emanated, as I 
hear it, from two issues: "interesting graphical effects but what's the 
point?" and "well... given that you can do this already pretty well in 
JavaScript, why implement it natively in the browser?" Both of those are 
issues that we intend to address.

cheers
David


See some of what can b
----- Original Message ----- 
From: "Jonathan Chetwynd" <j.chetwynd@btinternet.com>
To: "www-svg" <www-svg@w3.org>
Sent: Saturday, November 13, 2010 10:40 AM
Subject: Feature request: Gradients: contours, matrices and...


> Feature request: Gradients: contours, matrices and...
>
> The current gradient options linear and radial are somewhat  restrictive, 
> and I would like to encourage discussion on this list of  possible 
> extensions such as contours or matrices.
>
> It has been suggested that it might be helpful to have mathematicians 
> contribute as invited experts,
> would Akexey Balakin  be an appropriate person to contact?
> mathGL:  http://mathgl.sourceforge.net/
>
> It would be helpful if any such extensions conform to SVG harness,  being 
> reasonably easy to understand and implement.
>
> regards
>
> Jonathan Chetwynd
> http://www.peepo.com
>
>
>
> 
Received on Saturday, 13 November 2010 17:01:05 GMT

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