Re: SVGTransform and SVGMatrix

• From: Jonathan Watt <jonathan.watt@strath.ac.uk>
• Date: Sat, 12 Jun 2004 11:37:46 +0100
• To: www-svg@w3.org
• Message-ID: <40CADCFA.2010703@strath.ac.uk>

Cameron McCormack wrote:
> Hi Jonathan.
> 
> Batik doesn't keep a reference to the SVGMatrix passed in to setMatrix,
> it just uses the SVGMatrix to modify the SVGTransform's internal
> representation of the transformation.  And when the matrix attribute is 
> referred to a new SVGMatrix object is returned.  But modifying this new
> SVGMatrix object still does affect the SVGTransform.
> 
> This sort of thing happens a lot in the Batik code.  In this case, when
> you refer to the matrix attribute of the SVGTransform an instance of an
> anonymous class inheriting from AbstractSVGMatrix is returned, whose
> setA..setF methods affect the SVGTransform.
> 
> Cameron


Hi. Thanks for the clear reply Cameron. It's interesting to know how 
Batik works, as well as how it behaves. :)

Jonathan

Received on Saturday, 12 June 2004 06:37:50 UTC