I checked the archives for the list to see if this had been asked
before, but couldn't spot anything obvious (or even semi-obvious).
I am working on an app that I'd like to use Core Image in. I'd also
ideally like to be able to export as SVG (scalable vector graphics)
if possible, in addition to the native file format.
Looking at the SVG format specification, there are a lot of
situations where an Image Unit's parameters could be expressed in the
XML of an SVG document (eg. gradient fills). However, from my initial
reading of the SVG format, it seems like I'd have to do a walk
through each object's Image Units, and if it's one that is
expressible in XML, do that, and if it can't be expressed in XML -
either because the format doesn't cover that type of effect, or
because I don't know what the Image Unit does (eg. 3rd party Image
Units installed by end users, rather than Apple's default Image Units
or my Image Units) - then export a bitmap render for the object, with
rendered Core Image output... which of course is neither scalable or
vector based, but aside from that, would be very suitable for
inclusion in an SVG document!!
Furthermore if (for example) object 3 in my document has 10 image
units, and the 6th image unit to be applied has an effect that can't
be expressed as SVG XML, then I'd effectively have to output steps
1-6 inclusive as the bitmap, in which case only steps 7-10 would be
'editable' by the user in another SVG app (as the first 6 would be
hardwired into the bitmap). Not to mention file sizes etc. which
would presumably grow exponentially per the number of objects that
have to be output as bitmaps.
Has anyone done any work with Core Image <-> SVG... is there a cult
community in existence who I have yet to tap into? I understand that
Core Image is basically bitmap based, and SVG is basically vector
based, but there are definitely some cross overs where the two could
talk.
Please tell me if I'm barking up the wrong tree here... thanks in
advance for any feeders,
Ken
- - - - - - - - - -
Dr. Ken Tabb
Mac & UNIX Developer - Health & Human Sciences
Machine Vision & Neural Network researcher - School of Computer Science
University of Hertfordshire, UK
http://www.health.herts.ac.uk/ken/
Certified non-Microsoft Solution Provider
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