X3D and HTML5 examples

From Web3D.org
Jump to: navigation, search

Here are several examples that show different ways of combining HTML web pages and X3D scenes.

Contents

HelloWorld.x3d standalone scene

HelloWorld.x3d shows a simple standalone example (.html and .png)

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE X3D PUBLIC "ISO//Web3D//DTD X3D 3.2//EN" "http://www.web3d.org/specifications/x3d-3.2.dtd">
 <X3D profile='Immersive' version='3.2' xmlns:xsd='http://www.w3.org/2001/XMLSchema-instance' 
   xsd:noNamespaceSchemaLocation='http://www.web3d.org/specifications/x3d-3.2.xsd'>
   <head>
     <meta name='title' content='HelloWorld.x3d'/>
     <meta name='identifier' content='http://www.web3d.org/x3d/content/examples/HelloWorld.x3d'/> 
   </head>
   <Scene>
     <Group>
       <Viewpoint centerOfRotation='0 -1 0' 
         description='Hello world!' position='0 -1 7'/>
       <Transform rotation='0 1 0 3'>
         <Shape>
           <Sphere/>
           <Appearance>
             <Material diffuseColor='0 0.5 1'/>
             <ImageTexture url='"earth-topo.png"' />
           </Appearance>
         </Shape>
       </Transform>
       <Transform translation='0 -2 0'>
         <Shape>
           <Text solid='false' string='"Hello" "world!"'>
             <FontStyle justify='"MIDDLE" "MIDDLE"'/>
           </Text>
           <Appearance>
             <Material diffuseColor='0.1 0.5 1'/>
           </Appearance>
         </Shape>
       </Transform>
     </Group>
   </Scene>
 </X3D>

HTML Anchor link to X3D document

HTML anchor links allow an HTML page to load the contents of an X3D scene.

HTML source:

      Here is my
      <a href='HelloWorld.x3d' title='Link to a new X3D document'>HelloWorld example</a> in X3D.

HTML result:

       Here is my HelloWorld example in X3D.

Typically Web browser responses to a user selecting the link:

  • Show X3D scene, if an X3D plugin is installed or native support for X3D is provided
  • If X3D file format is unrecognized, browser might save file or else provide the user a choice to launch an external application (such as an X3D viewer or editor)
  • Show source (if http server X3D MIME type settings are incorrect)

X3D embedded in HTML page using object tag

HTML Object Tag for X3D shows how to place X3D objects within an HTML page

newHtmlPageWithX3dObject.html is an example HTML scene with X3D object tag to copy, edit and reuse.

<html>
 <body>
  <object data="http://www.web3d.org/x3d/content/examples/HelloWorld.x3d"
    type="model/x3d+xml" height="360" width="	
    <param name="src" value="http://www.web3d.org/x3d/content/examples/HelloWorld.x3d"/>
    <param name="DASHBOARD" value="FALSE"/>
    <param name="SPLASHSCREEN" value="
    <!-- the following anchor-link text is only displayed to user if no X3D plugin is already installed -->
    <div class="noX3dPluginInstalled">
      <a href="http://www.web3d.org/x3d/content/examples/X3dResources.html#Applications" target="helpPage"> 
      Select an X3D plugin to see this example...</a>
    </div>
  </object>
 </body>
</html>

X3D embedded using HTML5 object element

    <object name='x3dBlock' type='model/x3d+xml' allow-same-origin allow-scripts>
      <param name='src' value='aScene.x3d'>
        <-- fallback HTML here -->
    </object>
  • Goal for this example is to show some HTML5-specific attributes
  • Opens nested browsing context in parent block element
  • Set of negotiated <param> pairs for initialization and runtime
  • TODO: check XHTML syntax for this example

X3D served as text/html (no namespace prefix)

      <!DOCTYPE html>
      <html>
        <head>
          <style type=text/css'>
            X3D { height:100%;width:100%; }
            svg { height:100%;width:100%; }
          </style>
        </head>
        <body>
          <X3D name='x3dBlock' type='model/x3d+xml' 
            version='3.3' profile='Interchange'
            allow-same-origin allow-scripts>
            <Scene>
              <Viewpoint description='Start' />
              <Shape>
                <Box size="4 4 4" />
              </Shape>
              <Shape>
                <Text string='"This is X3D Text"' />
              </Shape>
            </Scene>
          </X3D>
          <svg type='image/svg+xml' version="1.1">
            <ellipse cx="2cm" cy="4cm" rx="2cm" ry="1cm" />
          </svg>
          <mathml>
            <mrow><mi> x </mi><mo> + </mo>
            <mrow><mi> a </mi><mo> / </mo><mi> b </mi>
            </mrow></mrow>
          </mathml>
          <ruby> WWW <rt>World Wide Web</rt>
          </ruby>
        </body>
      </html>

X3D served as application/xhtml+xml (with namespace prefix)

      <?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">
        <head>
          <style type=text/css'>
            x3d:X3D { height:200px;width:200px; }
          </style>
        </head>
        <body>
          <x3d:X3D name='x3dBlock'
            xmlns:x3d=
            "http://www.web3d.org/specifications/x3d-3.2.xsd">
            <Scene>
              <Shape>
                <Box size="4 4 4" />
              </Shape>
              <Shape>
                <Text string='"This is X3D Text"' />
              </Shape>
          </Scene>
        </x3d:X3D>
      </body>
      </html>

Possible future X3D extension - Box has added html onclick event

      <?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">
        <head>
          <style type=text/css'>
            x3d:X3D { height:200px;width:200px; }
          </style>
        </head>
        <body>
          <x3d:X3D name='x3dBlock' xmlns:x3d="http://www.web3d.org/specifications/x3d-3.2.xsd">
            <Scene>
              <Shape>
                <Box size="4 4 4" onclick="alert('box picked at position ' + hitPnt);" />
              </Shape>
              <Shape>
                <Text string='"This is X3D Text"' />
              </Shape>
          </Scene>
        </x3d:X3D>
      </body>
      </html>
  • Note that addition of onclick attribute is not standard X3D
  • Preferred approach is probably to use X3D TouchSensor instead

X3D - Making direct updates on the tree

      <?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">
        <head>
          <style type=text/css'>
            x3d:X3D { height:200px;width:200px; }
          </style>
        </head>
        <body>
          <x3d:X3D name='x3dBlock' xmlns:x3d="http://www.web3d.org/specifications/x3d-3.2.xsd">
            <Scene>
              <Shape>
                <Appearance>
                  <Material diffuseColor="1 0 0"  />
                </Appearance>
                <Box size="4 4 4" />
              </Shape>
              <Shape>
                <Text string='"This is X3D Text"' />
              </Shape>
          </Scene>
        </x3d:X3D>
        <script type="text/javascript"><! CDATA
        var colSel = true;
        function toggleRendering()
        {
           var button = document.getElementById("color");	
           colSel = !colSel;		
              if (colSel)
                 button.value = "Blue";
              else
                 button.value = "Red";		
           var mat = document.getElementsByTagName("Material");
           var n = mat.length;		
           var aMat = mat[0];
           aMat.setAttribute("diffuseColor", (!colSel ? "0 0 1" : "1 0 0"));		
           return false;
        }	
        ></script>	
         <p class="case">   
           Dynamic material update
           <input type="button" id="color" value="Change Color" onclick="toggleRendering();" />
         </p>	
         </body>
       </html>
Personal tools