See http://cs.sru.edu/~ddailey/svg/V1.svg
This represents two Venn diagrams illustrating the additive and subtractive color models. (using 3 circles rather than the seven paths used at http://en.wikipedia.org/wiki/File:SubtractiveColor.svg ) Because of the way feImage is used with feBlend, only Opera seems to display these in a way consistent with my expectations. The filtering I've used ended up being a bit more complex than I would have hoped, so I have a question (Q) and a statement (S): -------------- Q. Can anyone think of a simpler way to do this than they way I've done it? It works and I think this is how it should be, though I have a pair of filters defined for each Venn diagram while it seems like one should suffice.( I consider the solution at Wikipedia to be simply wrong for any of a zillion reasons that I realize do not appeal to some people, but most of those reasons have to do with "accessibility" broadly defined.) --------------- S. My experiments with feComposite to try to accomplish the same thing were remarkably unsuccessful, with the exception being the additive color model shown here: http://cs.sru.edu/~ddailey/svg/V2.svg The inconsistency of Opera, ASV, and the spec (as noted somewhat at http://lists.w3.org/Archives/Public/www-svg/2011Nov/0096.html ) I will hope to make some of those experiments visible to the SVG WG sometime soon. Cheers David [Non-text portions of this message have been removed] ------------------------------------ ----- To unsubscribe send a message to: [email protected] -or- visit http://groups.yahoo.com/group/svg-developers and click "edit my membership" ----Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/svg-developers/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/svg-developers/join (Yahoo! ID required) <*> To change settings via email: [email protected] [email protected] <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

