- From: Dean Jackson <dean@w3.org>
- Date: Thu, 30 Aug 2001 13:26:59 +1000
- To: www-svg@w3.org
Again, you have to be subscribed to post. Hmmm.... maybe I'll try a different approach to these. From now on I'll bounce the message to the sender rather than forward it to the list. Dean ----- Forwarded message from Sai Ramanath <saipr@engineer.com> ----- X-Envelope-From: www-svg-request@tux.w3.org Wed Aug 29 17:43:19 2001 From: "Sai Ramanath" <saipr@engineer.com> To: www-svg@w3.org Old-Date: Thu, 30 Aug 2001 05:42:44 +0800 X-Diagnostic: Not on the accept list Subject: [Moderator Action] 'Accumulate' attribute for animateTransform X-Diagnostic: Mail coming from a daemon, ignored X-Envelope-To: www-svg X-UIDL: 48b2459b142d8d112b13726d9c51411e Dear SVG Team I have this following question regarding how to calculate new values for animateTransform when 'accumulate' attribute is set to "sum". I looked into the spec which directed me to section 3.3 of "SMIL Animation". Under the heading: "Computing Cumulative Animation Values", it states that the new values are calculated with the following formula: fi(t) = (ve * i) + f(t) However, it is quite hard to understand what exactly f(t) stands for. Also you did not provide examples for "animateTransform" with respect to 'accumulate="sum"'. You provided only simple examples for "animate". After trying few trial examples using Adobe viewer I have arrived at the following conclusion - at least in the case of "translate": NewFromX = (i - 1) * OriginalToX + OriginalFromX NewToX = i * OriginalToX where 'i' is the current iteration value. Same formula can be used for Y values too. I need you to verify my conclusions. More importantly please send me the correct formulae (all of them - scale, rotate, translate - x, y and angle). Please also update your specification to show the formulae. Your assistance will be most appreciated. Sai Ramanath -- _______________________________________________ FREE Personalized E-mail at Mail.com http://www.mail.com/?sr=signup Talk More, Pay Less with Net2Phone Direct(R), up to 1500 minutes free! http://www.net2phone.com/cgi-bin/link.cgi?143 ----- End forwarded message -----
Received on Wednesday, 29 August 2001 23:28:08 UTC