Date: Thu, 6 Aug 2009 17:19:32 +0200
Message-ID: <176841933.20090806171932@w3.org>
To: Anthony Grasso <anthony.grasso@cisra.canon.com.au>
CC: public-svg-wg@w3.org
On Thursday, August 6, 2009, 7:41:04 AM, Anthony wrote: AG> Hi Cameron, AG> Cameron McCormack wrote: >> Consider the following document: >> <svg xmlns="http://www.w3.org/2000/svg"> >> <rect width='200' height='100'/> >> <g fill='white' fill-opacity='0.5'> >> <rect width='100' height='100'/> >> <rect x='100' width='100' height='100' color-interpolation='linearRGB'/> >> </g> >> </svg> >> Should the right half of the rectangular region be a different colour >> from the left half? IIUC, the use of ‘color-interpolation’ should >> affect how the right white <rect> is composited into the black <rect> in >> the background. AG> Yes. The should be different colours because the 'color-interpolation' affects AG> how the right <rect> is composited on to the background. Right. (it also affects things like gradients). >> Batik, Opera and Firefox all show a uniform #808080 colour in the >> rectangular region, which makes me wonder if I’ve used the >> ‘color-interpolation’ correctly. AG> Opera 10 shows a uniform #7E7E7E for me. AG> To my understanding: AG> - the left <rect> should be #7F7F7F AG> - the right <rect> should be #BBBBBB Yes. So, lets have that slapped into a test. I added all the other values for color-interpolation to the attached. -- Chris Lilley mailto:chris@w3.org Technical Director, Interaction Domain W3C Graphics Activity Lead Co-Chair, W3C Hypertext CG
(image/svg+xml attachment: color-interp-01.svg)