Description of and pointer to an external file containing a still image.


content-type Type of Content
id Identifier
mime-subtype Mime Subtype
mimetype Mime Type
orientation Orientation
originator Originator
position Position
specific-use Specific Use
xlink:actuate Actuating the Link
xlink:href Href (Linking Mechanism)
xlink:role Role of the Link
xlink:show Showing the Link
xlink:title Title of the Link
xlink:type Type of Link
xmlns:xlink XLink Namespace Declaration
xml:lang Language

Model Description

Any combination of:

This element may be contained in:

<ack>, <alternatives>, <app>, <app-group>, <array>, <bio>, <body>, <boxed-text>, <chem-struct>, <chem-struct-wrap>, <disp-formula>, <disp-quote>, <fig>, <fig-group>, <glossary>, <license-p>, <named-content>, <non-normative-example>, <non-normative-note>, <notes>, <p>, <ref-list>, <sec>, <sig>, <sig-block>, <styled-content>, <supplementary-material>, <table-wrap>, <td>, <term>, <term-display>, <term-sec>, <th>


In the following example, the <alternatives> element is used to wrap a mathematical expression encoded in MathML with a graphic image of the same expression for use in environments where MathML is not supported.

    <p>The following discussion makes use of
      some properties of the three-by-three identity matrix:</p>
	<mml:mo> ( </mml:mo>
	    <mml:mtd> <mml:mn>1</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>0</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>0</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>0</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>1</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>0</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>0</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>0</mml:mn> </mml:mtd>
	    <mml:mtd> <mml:mn>1</mml:mn> </mml:mtd>
	<mml:mo> ) </mml:mo>
      <graphic xlink:href="images/identity-matrix">
	<alt-text>A three-by-three identity matrix.</alt-text>
	  <copyright-statement>&copy; 1998-2003 W3C &reg; (MIT, ERCIM,
	  Keio); used by permission</copyright-statement>
	  <copyright-holder>W3C &reg; (MIT, ERCIM,
      Analogous observations hold for identity matrices of different sizes.

The graphic rendering of the mathematical expression is:

(MathML example and graphic from Mathematical Markup Language (MathML) Version 2.0 (Second Edition), W3C Recommendation 21 October 2003, ed. David Carlisle et al., © 1998-2003 W3C® (MIT, ERCIM, Keio), all rights reserved. Used by permission.)