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Fix the svg:use. For a svg:use, it is a group which include the content it reference. It means that we can not tween it to its origin object directly. Instead, we need to ungroup it and then use the result matrix to generate the tweened transformation matrix. Therefore, we need to concate its matrix to the referenced object. Ad center object when the bbox-x is not available.
author wycc
date Sat, 02 Apr 2011 05:36:36 +0800
parents 8d97455811a8
children
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/*! \page mb_clutter What is MadButterfly different from Clutter?
 *
 * Maybe some people would ask, "why don't you just use Clutter?"
 * The anwser is the author of MadButterfly know name of Clutter,
 * but he don't know what is Clutter exactly when he start the project.
 * The author of MadButterfly is some kind of cowboy, he make things
 * just because he have some ideas.  Actually, he know what Clutter
 * just one week after starting the project.  Some guy send him a
 * video from Andre Schmidt.  Andre implements a software to control
 * volumne of sound card as a concept proving for idea of using
 * SVG as a media to connect UI designers and application programmers.
 * The work of Andre is based on Clutter.  It is first time the author
 * of MadButterfly know what Clutter is exactly.
 *
 * Although, they are so similar.  We can also find some thing different.
 * Clutter is heavily depend on OpenGL/OpenGL ES.  Most embedded systems
 * do not have OpenGL included.  MadButterfly have a static/compile time
 * SVG to C translator.  MadButterfly is focus on implementing mechanism
 * to adapt SVG to C and other languages.  Clutter is about more and more
 * heavy.
 *
 * MadButterfly is supposed to be a light-weight GUI toolkit for embedded
 * or small devices.
 */