Перевод "SMIL 3.0 Animation"

SMIL 3.0 Animation

12.1 Overview and Summary of Changes for SMIL 3.0

This section is informative.

The SMIL 3.0 specification leaves the SMIL 2.1 Animation Modules [SMIL21-animation] mostly unchanged. The only changes are that normative text is added that clarifies the ability of a host language designer to override the event base default element, and that several typos and some examples have been corrected.

12.2 Introduction

This section is informative.

This section defines the SMIL 3.0 Animation Modules, which are composed of a BasicAnimation module and a SplineAnimation module. These modules contain elements and attributes for incorporating animation onto a time line, and a mechanism for composing the effects of multiple animations. Since these elements and attributes are defined in modules, designers of other markup languages may choose whether or not to include this functionality in their languages. Language designers incorporating other SMIL modules do not need to include the animation modules if animation functionality is not needed.

The examples in this document that include syntax for a host language use SMIL 3.0, [SVG], [HTML4] and [CSS2]. These are provided as an indication of possible integrations with various host languages.

While this document defines a base set of animation capabilities, it is assumed that host languages may build upon the support to define additional or more specialized animation elements. Animation only manipulates attributes and properties of the target elements, and so does not require any knowledge of the target element semantics beyond basic type information. Basic type information includes such information as whether a type supports addition, and whether a list of numbers is just that, or whether it represents e.g. a set of coordinates.