Copyright 2001 David Dodds
Example. Multiple capabilities are demonstrated in one SVG file:
(the SVG XML structure is signed, changes are detectable;
  graphical objects in the picture react to mouse clicks;
  an external (to SVG) namespace is used to contain Topic Maps material;
  each graphical object has an id, making them referencable "XML fragments";
  metadata provides named "group" capability, logically relating objects;
  metadata provides "fidelity" assertions, author may declare "immutable" 
information;
  metadata provides signing capability for fidelity and group assertions
  RDF metadata associated with clickable buttons (in the picture), each 
button also has xlink;
  MathML and Topic Map assertions inside RDF structures
  )

<?xml version="1.0" standalone="yes" ?>
<svg width="9in" height="7in"
      xmlns = 'http://www.w3.org/Graphics/SVG/SVG-20000629.dtd'>
      <defs>
         <script type="text/ecmascript"><![CDATA[
                /* Every time you click, increase radius by 10. */
               //function MouseClickHandler(MouseEvent event) { 
event.target.r+=10; }
               ]]>
         </script>
      </defs>
      <title>SVG struct sign 25070522816739A53D</title>
      <text x="550" y="475" style="font-size: 12;font-family: 
Arial;fill:orange">
          This is the xtm base definition
          </text>
          <text x="550" y="490" style="font-size: 12;font-family: 
Arial;fill:orange">
          <topic>
          </text>
          <text x="550" y="505" style="font-size: 12;font-family: 
Arial;fill:orange">
            <t-basedef-1-2000-03-07>
            </text>
          <text x="550" y="520" style="font-size: 12;font-family: 
Arial;fill:orange">
          </topic>
      </text>
      <desc xmlns:myxtm="http://openmeta.org/SVG/dir-myxtm-ns">
          <myxtm:title>This is the xtm base definition</myxtm:title>
          <myxtm:from>t-basedef-1-2000-03-07</myxtm:from>
          <myxtm:facettype>ft-birth-date</myxtm:facettype>
          <myxtm:fvaltype>t-1940-09-10</myxtm:fvaltype>
          <myxtm:fvalue>t-lennon-john</myxtm:fvalue>
          <myxtm:fvaltype>t-1942-06-18</myxtm:fvaltype>
          <myxtm:fvalue>t-mccartney-paul</myxtm:fvalue>
          <myxtm:fvaltype>t-1943-02-25</myxtm:fvaltype>
          <myxtm:fvalue>t-harrison-george</myxtm:fvalue>
          <myxtm:fvaltype>t-1940-07-07</myxtm:fvaltype>
          <myxtm:fvalue>t-starr-ringo</myxtm:fvalue>
      </desc>
<g id="object0"><text x="550" y="375" style="font-size: 12;font-family: 
Arial;fill:green">
                 $Fidelity{idname:Object1 fill:orange 
stroke:blue}$Fidelity{idname:Object3 stroke:purple}
            </text>
            <text x="550" y="405" style="font-size: 12;font-family: 
Arial;fill:green">
                 $Group{gname:Group1 group:Object1 Object2 Object3 Object4}
            </text>
            <desc>
                 $Fidelity{idname:Object1 fill:orange stroke:blue 
fractal:1.379152 lacunarity:0.32719}
                 $Fidelity{idname:Object3 stroke:purple}
                 $Fidelity{sign:93761822507052D35A}
                 $Group{gname:Group1 group:Object1 Object2 Object3 Object4 
leftof:Object2 Object3}
            </desc>
</g>
<g id="object1">
      <title>
          Object 1, topic map component associated with a lime filled, blue 
stroked star-shaped polygon
      </title>
      <text x="10" y="230" style="font-size: 12;font-family: 
Arial;fill:green">
          <topic id="t-starr-ringo" types="tt-person">
          </text>
          <text x="10" y="245" style="font-size: 12;font-family: 
Arial;fill:green">
          <topname><basename>Ringo Starr</basename>
          </text>
          <text x="10" y="260" style="font-size: 12;font-family: 
Arial;fill:green">
            <sortname>Starr, Ringo</sortname></topname>
            </text>
          <text x="10" y="275" style="font-size: 12;font-family: 
Arial;fill:green">
          </topic>
      </text>
      <desc xmlns:myxtm="http://openmeta.org/SVG/dir-myxtm-ns">
          <myxtm:topicid>t-starr-ringo</myxtm:topicid>
          <myxtm:types>tt-person</myxtm:types>
          <myxtm:tnbname>Ringo Starr</myxtm:tnbname>
          <myxtm:tnsname>Starr, Ringo</myxtm:tnsname>
          <myxtm:tnbname>Richard Starkey</myxtm:tnbname>
          <myxtm:tnsname>Starkey, Richard</myxtm:tnsname>
      </desc>
      <polygon style="fill:orange; stroke:blue; stroke-width:10"
         points="350,75 379,161 469,161 397,215
                       423,301 350,250 277,301 303,215
                       231,161 321,161 350,75"/>
</g>
<g id="object2">
      <title>
          Object 2, topic map component associated with a red filled, blue 
stroked circle
      </title>
      <text x="70" y="30" style="font-size: 12;font-family: 
Arial;fill:green">
      <topic id="t-lennon-john" types="tt-person">
      </text>
      <text x="70" y="45" style="font-size: 12;font-family: 
Arial;fill:green">
      <topname><basename>John Lennon</basename>
      </text>
      <text x="70" y="60" style="font-size: 12;font-family: 
Arial;fill:green">
      <sortname>Lennon, John</sortname></topname>
      </text>
      <text x="70" y="75" style="font-size: 12;font-family: 
Arial;fill:green">
      </topic>
      </text>
      <desc xmlns:myxtm="http://openmeta.org/SVG/dir-myxtm-ns">
          <myxtm:topicid>t-lennon-john</myxtm:topicid>
          <myxtm:types>tt-person</myxtm:types>
          <myxtm:tnbname>John Lennon</myxtm:tnbname>
          <myxtm:tnsname>Lennon, John</myxtm:tnsname>
      </desc>
      <circle xonclick="MouseClickHandler(event)" cx="1cm" cy="1cm" r="30"
               style="fill:red;stroke:blue;stroke-width:0.1cm"/>
</g>
<g id="object3" transform="translate(100,270);rotate(-30)">
      <title>
         Object 3, topic map component associated with an unfilled, purple 
stroked tilted rectangle
      </title>
      <text x="100" y="130" style="font-size: 12;font-family: 
Arial;fill:green">
          <topic id="t-mccartney-paul" types="tt-person">
          </text>
          <text x="100" y="145" style="font-size: 12;font-family: 
Arial;fill:green">
          <topname><basename>Paul McCartney</basename>
          </text>
          <text x="100" y="160" style="font-size: 12;font-family: 
Arial;fill:green">
            <sortname>McCartney, Paul</sortname></topname>
            </text>
          <text x="100" y="175" style="font-size: 12;font-family: 
Arial;fill:green">
          </topic>
      </text>
      <desc xmlns:myxtm="http://openmeta.org/SVG/dir-myxtm-ns">
          <myxtm:topicid>t-mccartney-paul</myxtm:topicid>
          <myxtm:types>tt-person</myxtm:types>
          <myxtm:tnbname>Paul McCartney</myxtm:tnbname>
          <myxtm:tnsname>McCartney, Paul</myxtm:tnsname>
      </desc>
      <rect x="0" y="100" width="400" height="200" rx="50"
           style="fill:none; stroke:purple; stroke-width:21"/>
</g>
<g id="object4">
      <title>
         Object 4, topic map component associated with an image, named 
myimage.jpg
      </title>
      <text x="70" y="30" style="font-size: 12;font-family: 
Arial;fill:green">
          <topic id="t-lennon-john" types="tt-person">
          </text>
          <text x="70" y="45" style="font-size: 12;font-family: 
Arial;fill:green">
          <topname><basename>John Lennon</basename>
          </text>
          <text x="70" y="60" style="font-size: 12;font-family: 
Arial;fill:green">
            <sortname>Lennon, John</sortname></topname>
            </text>
          <text x="70" y="75" style="font-size: 12;font-family: 
Arial;fill:green">
          </topic>
      </text>
      <desc xmlns:myxtm="http://openmeta.org/SVG/dir-myxtm-ns">
          <myxtm:topicid>t-harrison-george</myxtm:topicid>
          <myxtm:types>tt-person</myxtm:types>
          <myxtm:tnbname>George Harrison</myxtm:tnbname>
          <myxtm:tnsname>Harrison, George</myxtm:tnsname>
      </desc>
      <image x="590" y="50" width="350px" height="200px"
                 xmlns:xlink="http://www.w3.org/2000/xlink/namespace"
                 xlink:type="simple" xlink:show="embed" 
xlink:actuate="onLoad"
                 xlink:href="myimage.jpg">
      </image>
</g>
<g id="object5">
      <title>
         Object 5, RDF metadata associated with a button, named 
greentopbutton.jpg
      </title>
      <image x="650" y="275" width="55px" height="25px"
                       xmlns:xlink="http://www.w3.org/2000/xlink/namespace"
                       xlink:type="simple" xlink:show="embed" 
xlink:actuate="onRequest"
                       xlink:href="greentopbutton.jpg">
      </image>
</g>
<g id="object6">
      <title>
         Object 6, RDF metadata associated with a button, named 
greentopbutton.jpg
      </title>
      <image x="750" y="275" width="55px" height="25px"
                       xmlns:xlink="http://www.w3.org/2000/xlink/namespace"
                       xlink:type="simple" xlink:show="embed" 
xlink:actuate="onRequest"
                       xlink:href="greentopbutton.jpg">
      </image>
</g>
<g id="object7">
      <title>
         Object 7, RDF metadata associated with a button, named 
greentopbutton.jpg
      </title>
      <image x="850" y="275" width="55px" height="25px"
                       xmlns:xlink="http://www.w3.org/2000/xlink/namespace"
                       xlink:type="simple" xlink:show="embed" 
xlink:actuate="onRequest"
                       xlink:href="greentopbutton.jpg">
      </image>
</g>

       <metadata>
         <rdf:RDF
                 xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
                 xmlns:rdfs="http://www.w3.org/TR/. ..-schema#"
                 xmlns:dc="http://purl.org/metadata/dublin_core#"
                 xmlns:s="http://description.org/schema/">
                 xmlns:daxsvg="http://www.openmeta.org/daxschema/">
           <rdf:Description
  xmlns="http://www.w3.org/TR/REC-mathml"
  rdf:about="http://myfoo.com/papers/NobelPaper27">
  <dc:Title rdf:parseType="Literal">
    Ramifications of QSpace Bosons for Free Energy
       <apply>
      <power/>
      <apply>
    <plus/>
    <ci>x</ci>
    <ci>y</ci>
      </apply>
      <cn>3</cn>
    </apply>
    between infinitely closely-spaced plates
  </dc:Title>
  <dc:Creator>Alfred Newman</dc:Creator>
</rdf:Description>

<rdf:Description
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  xmlns:dc="http://purl.org/metadata/dublin_core#"
  rdf:about="http://myfoo.com/metadata/TM/tmbase1">
  <dc:Title rdf:parseType="Literal">
<topic id="tt-music">
    <topname><basename>Music</basename></topname>
  </topic>

  <topic id="tt-pop-music" types="tt-music">
    <topname><basename>Pop music</basename></topname>
  </topic>
  <topic id="tt-rock" types="tt-music">
    <topname><basename>Rock 'n roll</basename></topname>
  </topic>

  <!-- a scoping topic -->

  <topic id="st-music">
    <topname><basename>Music</basename></topname>
  </topic>
  </dc:Title>
    <dc:Creator>Alfred Newman</dc:Creator>
</rdf:Description>

<rdf:Description
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  xmlns:dc="http://purl.org/metadata/dublin_core#"
  rdf:about="http://myfoo.com/metadata/TM/tmbase2">
  <dc:Title rdf:parseType="Literal">
   <!-- ===============================================
         Associations: The Beatles
                                                         -->

    <topic id="at-member-of">
      <topname><basename>Member of</basename></topname>
    </topic>

    <topic id="at-played-instrument-in">
      <topname><basename>Played instrument</basename></topname>
    </topic>

    <topic id="at-born-in">
      <topname><basename>Born in</basename></topname>
    </topic>

    <topic id="at-located-in">
      <topname><basename>Located in</basename></topname>
    </topic>

    <assoc type="at-member-of" scope="st-music">
      <assocrl type="tt-band" anchrole="band">t-the-beatles</assocrl>
      <assocrl anchrole="member">t-lennon-john t-mccartney-paul 
t-harrison-george t-starr-ringo</assocrl>
    </assoc>

    <assoc type="at-played-instrument-in">
      <assocrl type="tt-band">t-the-beatles</assocrl>
      <assocrl type="tt-vocalist" anchrole="vocalist">t-lennon-john 
t-mccartney-paul</assocrl>
      <assocrl type="tt-guitarist">t-harrison-george t-lennon-john</assocrl>
      <assocrl type="tt-bassist">t-mccartney-paul</assocrl>
      <assocrl type="tt-drummer">t-starr-ringo</assocrl>
    </assoc>

    <assoc type="at-born-in">
      <assocrl type="tt-city">t-liverpool</assocrl>
      <assocrl type="tt-person">t-lennon-john t-mccartney-paul 
t-harrison-george t-starr-ringo</assocrl>
    </assoc>

    <assoc type="at-located-in">
      <assocrl type="tt-country">t-england</assocrl>
      <assocrl type="tt-city">t-liverpool</assocrl>
    </assoc>

    <!-- ================================================================
         Facets: The Beatles
                                                                      -->

    <topic id="tt-time">
      <topname><basename>Time</basename></topname>
    </topic>
    <topic id="tt-julian-date" types="tt-time">
      <topname><basename>Julian date</basename></topname>
    </topic>
    <topic id="ft-birth-date" types="tt-time">
      <topname><basename>Birthdate</basename></topname>
      <topname><basename>Date of birth</basename></topname>
    </topic>

    <facet type="ft-birth-date">
      <fvalue type="t-1940-09-10">t-lennon-john</fvalue>
      <fvalue type="t-1942-06-18">t-mccartney-paul</fvalue>
      <fvalue type="t-1943-02-25">t-harrison-george</fvalue>
      <fvalue type="t-1940-07-07">t-starr-ringo</fvalue>
    </facet>

    <topic id="t-1940-09-10" type="tt-julian-date">
      <topname><basename>September 10th 1940</basename></topname>
    </topic>

    <topic id="t-1942-06-18" type="tt-julian-date">
      <topname><basename>June 6th 1942</basename></topname>
    </topic>

    <topic id="t-1943-02-25" type="tt-julian-date">
      <topname><basename>February 25th 1943</basename></topname>
    </topic>

    <topic id="t-1940-07-07" type="tt-julian-date">
      <topname><basename>July 7th 1940</basename></topname>
    </topic>
</dc:Title>
  <dc:Creator>Michel Biezunski</dc:Creator>
</rdf:Description>



  <rdf:Description
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:dc="http://purl.org/metadata/dublin_core#"
  rdf:about="http://myfoo.com/metadata/TM/tmbase2">
<rdf:Description about="#object5">
  <s:Creator>Moe</s:Creator>
</rdf:Description>
<rdf:Description about="#object6">
  <s:Creator>Larry</s:Creator>
</rdf:Description>
<rdf:Description about="#object7">
  <s:Creator>Curly</s:Creator>
</rdf:Description>

<rdf:Description aboutEach="#docpages">
  <s:Copyright>© 2000, The Fubar Organization</s:Copyright>
</rdf:Description>
<rdf:Bag ID="docpages">
  <rdf:li resource="http://fubar.org/doc/page1"/>
  <rdf:li resource="http://fubar.org/doc/page2"/>
</rdf:Bag>
</rdf:RDF>
<!-- note:  this illustration of the content of the XTM metadata element is 
temporarily incomplete -->
          <!-- note: the xmlns for svgmetadata has been moved to 
openmeta.org. -->
           <xtm:XTM
                             xmlns:xtm = 
"http://openmeta.org/SVG/dir-xtm-syntax-ns"
                             xmlns:xtms = 
"http://openmeta.org/SVG/XTMS/dir-schema"
                             xmlns:svgmetadata = 
"http://openmeta.org/SVG/dir-meta" >
                             <xtm:points>
                                mydrawing.svg#xpointer(id('object1'))
                             </xtm:points>
                             <xtm:svgmetadata>
                                 General Contains="true"
                                         object1 leftof object3
                             </xtm:svgmetadata>
           </xtm:XTM>

                    <rdf:Description about="#circle4">
		         <daxsvg:Containz resource="#circle3" />
		     </rdf:Description>
		    <rdf:Description about="#circle3">
		    		         <daxsvg:Containz resource="#circle2" />
		     </rdf:Description>
		     <rdf:Description about="#circle2">
		     		         <daxsvg:Containz resource="#circle1" />
		     </rdf:Description>
		     <rdf:Description about="#circle1">
		     		         <daxsvg:Center resource="#circle2" />
		     </rdf:Description>
		     <rdf:Description about="#line1">
		     		         <daxsvg:AtRight resource="#line2" />
		     </rdf:Description>
		     <rdf:Description about="#line2">
		     		         <daxsvg:AtRight resource="#line3" />
		     </rdf:Description>
		     <rdf:Description about="#line3">
		     		         <daxsvg:AtRight resource="#line4" />
		     </rdf:Description>
		     <rdf:Description about="#line4">
		     		         <daxsvg:AtRight resource="#line5" />
		     </rdf:Description>
		     <rdf:Description about="#line5">
		     		         <daxsvg:AtRight resource="#line6" />
		     </rdf:Description>
		     <rdf:Description about="#line6">
		     		         <daxsvg:AtRight resource="#line7" />
		     </rdf:Description>
		     <rdf:Description about="#line7">
		     		         <daxsvg:AtRight resource="#line8" />
		     </rdf:Description>
		     <rdf:Description about="#line8">
		     		         <daxsvg:AtRight resource="#line9" />
		     </rdf:Description>
		     <rdf:Description about="#line9">
		     		  	  <daxsvg:AtRight resource="#line10" />
		     </rdf:Description>
		     <rdf:Description about="#line10">
		     		          <daxsvg:AtRight resource="#line11" />
		     </rdf:Description>
		     <rdf:Description about="#line11">
		     		          <daxsvg:AtRight resource="#line12" />
		     </rdf:Description>

                  </metadata>

                  <circle id="circle4" cx="550" cy="400" r="75" 
style="fill:blue; stroke:navy; stroke-width:2" />
		  <circle id="circle3" cx="550" cy="400" r="50" style="fill:green; 
stroke:navy; stroke-width:2" />
		    <circle id="circle2" cx="550" cy="400" r="25" style="fill:yellow; 
stroke:navy; stroke-width:2" />
		    <circle id="circle1" cx="550" cy="400" r="5" style="fill:red; 
stroke:navy; stroke-width:2" />


<rect x="37" y="490" width="280" height="1" style="stroke:black; 
stroke-width:1" />
<text x="317" y="494"
   style="font-family:Verdana; font-size:12.333; fill:indigo">
18
</text>
<rect x="333" y="500" width="1" height="-104" style="stroke:black; 
stroke-width:1" />
<rect x="37" y="500" width="1" height="-104" style="stroke:black; 
stroke-width:1" />
<rect id="line1" x="40" y="500" width="20" height="-40" style="stroke:green; 
fill:green; stroke-width:1" />
<rect id="line2" x="60" y="500" width="20" height="-60" 
style="stroke:yellow; fill:yellow; stroke-width:1" />
<rect id="line3" x="80" y="500" width="20" height="-89" style="stroke:red; 
fill:red; stroke-width:1" />
<rect id="line4" x="100" y="500" width="20" height="-70" 
style="stroke:yellow; fill:yellow; stroke-width:1" />
<rect id="line5" x="120" y="500" width="20" height="-27" 
style="stroke:green; fill:green; stroke-width:1" />
<rect id="line6" x="140" y="500" width="20" height="-09" 
style="stroke:green; fill:green; stroke-width:1" />
<rect id="line7" x="160" y="500" width="20" height="-60" 
style="stroke:yellow; fill:yellow; stroke-width:1" />
<rect id="line8" x="180" y="500" width="20" height="-33" 
style="stroke:green; fill:green; stroke-width:1" />
<rect id="line9" x="200" y="500" width="20" height="-25" 
style="stroke:green; fill:green; stroke-width:1" />
<rect id="line10" x="220" y="500" width="20" height="-71" 
style="stroke:yellow; fill:yellow; stroke-width:1" />
<rect id="line11" x="240" y="500" width="20" height="-50" 
style="stroke:green; fill:green; stroke-width:1" />
<rect id="line12" x="260" y="500" width="20" height="-61" 
style="stroke:yellow; fill:yellow; stroke-width:1" />
<rect x="280" y="500" width="20" height="-75" style="stroke:yellow; 
fill:yellow; stroke-width:1" />
<text x="37" y="510"
   style="font-family:Verdana; font-size:12.333; fill:black">
87  88  89  90  91  92  93  94  95  96  97  98  99
</text>
<text x="37" y="530"
   style="font-family:Verdana; font-size:12.333; fill:brown">
Mean High Ratings August 1999
</text>
</svg>