[whatwg] Using X3D in XHTML documents

Thu Jun 2 18:49:57 PDT 2005

    I've just stumbled on to the namespace for X3D:

http://www.web3d.org/specifications/x3d-schema-changelog.txt

    Given this "new" information, I would like to know of the following 
is an acceptable use of X3D within an XHTML document:

| <?xml version="1.0" encoding="UTF-8"?>
| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
| "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
| <html xmlns="http://www.w3.org/1999/xhtml"
| xmlns:x3d="http://www.web3d.org/specifications/x3d-3.0.xsd">
| <head>
|   <title>3D Model</title>
|   <style type="text/css">
|     x3d:X3D {
|       width: 100px;
|       height: 100px;
|     }
|   </style>
| </head>
| <body>
|   <h1>A 3D Cylinder Model</h1>
|   <div>
|     <x3d:X3D profile="MPEG-4 Interactive">
|       <x3d:Scene>
|         <x3d:Shape>
|           <x3d:Appearance>
|             <x3d:Material diffuseColor="0.0 0.5 1.0"/>
|           </x3d:Appearance>
|           <x3d:Cylinder/>
|         </x3d:Shape>
|       </x3d:Scene>
|     </x3d:X3D>
|   </div>
| </body>
| </html>

    If this is acceptable, does this negate the value of a potential 
"3d" context for <canvas> in XHTML?