<alternatives>
Alternatives For Processing
Container element used to hold a group of processing alternatives, for example, a single
<graphic> that ships in several formats
(tif, gif, and jpeg) or in different resolutions. This element is a physical grouping to contain multiple logically equivalent (substitutable) versions of the same information object. Typically these are processing alternatives, and the reader is expected to see only one version of the object.
Remarks
<alternatives> is neither inherently block nor inline in nature, because the block or inline quality is determined by context and usage. Typical examples for this element are a <graphic> that ships with a document in multiple versions (for example, as a .tif, a .jpeg, and an SVG file); or an <inline-formula> that is available as a .tif (<inline-graphic>), encoded in MathML, as well as encoded in TeX, and as a plain ASCII.
Accessibility: This element, by providing a container for alternative versions of
a graphic or media object, enables providing a textual alternative to any graphic or media object as well as providing an enlarged graphic version for accessibility.
Content Model
<!ELEMENT alternatives %alternatives-model; >
Expanded Content Model
(array | chem-struct | code | graphic | inline-graphic | inline-media | inline-supplementary-material | media | preformat | private-char | supplementary-material | table | textual-form | tex-math | mml:math)+
Description
One or more of any of:
- <array> Array (Simple Tabulation)
- <chem-struct> Chemical Structure (Display)
- <code> Code
- <graphic> Graphic
- Inline Display Elements
- <inline-supplementary-material> Inline Supplementary Material Metadata
- <media> Media Object
- <preformat> Preformatted Text
- <supplementary-material> Supplementary Material Metadata
- <table> Table (NISO JATS table model)
- <textual-form> Textual Form
- Math Elements
This element may be contained in:
<abbrev>, <abbrev-journal-title>, <abstract>, <ack>, <addr-line>, <aff>, <alt-title>, <anonymous>, <app>, <app-group>, <array>, <article-title>, <attrib>, <award-id>, <bio>, <body>, <bold>, <boxed-text>, <chapter-title>, <chem-struct>, <chem-struct-wrap>, <collab>, <comment>, <compound-kwd-part>, <compound-subject-part>, <conf-acronym>, <conf-loc>, <conf-name>, <conf-num>, <conf-sponsor>, <conf-theme>, <copyright-statement>, <corresp>, <def-head>, <degrees>, <disp-formula>, <disp-quote>, <edition>, <element-citation>, <email>, <etal>, <ext-link>, <fax>, <fig>, <fig-group>, <fixed-case>, <floats-group>, <funding-source>, <funding-statement>, <given-names>, <glossary>, <gov>, <history>, <inline-formula>, <inline-supplementary-material>, <institution>, <issue>, <issue-part>, <issue-sponsor>, <issue-title>, <italic>, <journal-subtitle>, <journal-title>, <kwd>, <label>, <license-p>, <meta-name>, <meta-value>, <mixed-citation>, <monospace>, <named-content>, <notes>, <on-behalf-of>, <overline>, <p>, <part-title>, <patent>, <phone>, <prefix>, <preformat>, <product>, <publisher-loc>, <publisher-name>, <rb>, <ref-list>, <related-article>, <related-object>, <role>, <roman>, <sans-serif>, <sc>, <sec>, <see>, <see-also>, <self-uri>, <series>, <series-text>, <series-title>, <sig>, <sig-block>, <source>, <speaker>, <std-organization>, <strike>, <string-conf>, <string-date>, <string-name>, <styled-content>, <sub>, <subject>, <subtitle>, <suffix>, <sup>, <supplement>, <supplementary-material>, <support-source>, <surname>, <table-wrap>, <target>, <td>, <term>, <term-head>, <th>, <title>, <trans-abstract>, <trans-source>, <trans-subtitle>, <trans-title>, <underline>, <unstructured-kwd-group>, <uri>, <verse-line>, <version>, <volume>, <volume-id>, <volume-series>, <xref>
Example 1
Two alternative graphics, differentiated by usage:
...
<fig id="f3" position="float">
<label>FIG. 3.</label>
<caption>...</caption>
<alternatives>
<graphic specific-use="print" xlink:href="1.4821168.figures.highres.f3.zip"/>
<graphic specific-use="online" xlink:href="1.4821168.figures.online.f3.jpg"/>
</alternatives>
</fig>
...Example 2
Three alternatives to a table inside a <table-wrap>, one tagged XML and two graphical:
...
<table-wrap id="pbio-0020328-t003" position="float">
<caption>
<title>Systematic Inactivation of SpoIIID-Activated Genes</title>
</caption>
<alternatives>
<graphic xlink:href="pbio.0020328.t003.tif">
<object-id pub-id-type="doi" content-type="image">10.0020328/2007SS000314(2007)</object-id>
</graphic>
<graphic xlink:href="pbio.0020328.t003.gif">
<object-id pub-id-type="doi" content-type="image">10.0020328a/2007SS000314(2007)</object-id>
</graphic>
<table frame="box" rules="all" cellpadding="5">
<thead>
<tr>
<td>Strain</td>
<td>Description</td>
<td>Sporulation Efficiency (Percent)<sup>a</sup></td>
</tr>
</thead>
<tbody>...</tbody>
</table>
</alternatives>
<table-wrap-foot>
<fn id="nt301">
<p><sup>a</sup> Sporulation efficiency is defined as the
number of heat-resistant spores ...</p>
</fn>
</table-wrap-foot>
</table-wrap>
...Example 3
Three alternatives to a display equation: one MathML-XML-tagged, one graphical, and the third a textual form:
...
<disp-formula>
<alternatives>
<textual-form>(a + 3)<sup>2</sup> - (10 - b) = 24</textual-form>
<graphic xmlns:xlink="http://www.w3.org/1999/xlink"
xlink:href="fors2682.f3">
<object-id>463492</object-id>
</graphic>
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML">
<mml:mrow>
<mml:msup>
<mml:mfenced>
<mml:mrow>
<mml:mi>a</mml:mi>
<mml:mo>+</mml:mo>
<mml:mn>3</mml:mn>
</mml:mrow>
</mml:mfenced>
<mml:mn>2</mml:mn>
</mml:msup>
<mml:mo>−</mml:mo>
<mml:mfenced>
<mml:mrow>
<mml:mi>10</mml:mi>
<mml:mo>−</mml:mo>
<mml:mn>b</mml:mn>
</mml:mrow>
</mml:mfenced>
<mml:mo>=</mml:mo>
<mml:mn>24</mml:mn>
</mml:mrow>
</mml:math>
</alternatives>
</disp-formula>
...Example 4
Three alternatives to a display equation: one MathML-XML-tagged, one tagged in TeX, and one graphical:
...
<disp-formula id="eq_002">
<label>(2)</label>
<alternatives>
<graphic xlink:href="graphic/eq_002.png"/>
<mml:math>
<mml:mstyle displaystyle="true" scriptlevel="0">
<mml:mi mathvariant="normal">Δ</mml:mi>
<mml:mi>x</mml:mi>
<mml:mi mathvariant="normal">Δ</mml:mi>
<mml:mi>p</mml:mi>
<mml:mo>≥</mml:mo>
<mml:mfrac>
<mml:mn>1</mml:mn>
<mml:mn>2</mml:mn>
</mml:mfrac>
<mml:mi class="MJX-variant">ℏ</mml:mi>
</mml:mstyle>
</mml:math>
<tex-math><![CDATA[\displaystyle \Delta x \Delta p \geq \frac{1}{2} \hbar]]></tex-math>
</alternatives>
</disp-formula>
...
Example 5
Three media alternatives inside a paragraph, differentiated by mime subtype:
...
<fig id="f1" orientation="portrait" position="float">
<label>FIG. 1.</label>
<caption>
<p>(a) Schematic of the working principles of HFM, (b) a typical
application scheme for an electric bias in HFM, (c) regulation
the conformations and dynamics (trapping, concentration, and sudden
stretching) of λ-DNA molecules in HFM, and (d) schematic of the trapping location regulation (enhanced online).
[URL: <ext-link ext-link-type="uri" xlink:href="http://dx.doi.org/10.1063/1.4762852.1">
http://dx.doi.org/10.1063/1.4762852.1</ext-link>]
<alternatives>
<media id="v1" mime-subtype="avi" mimetype="video" orientation="portrait"
position="anchor" specific-use="original-format" xlink:href="v1"/>
<media mime-subtype="mpeg" mimetype="video" orientation="portrait"
position="anchor" specific-use="archival-format" xlink:href="v1"/>
<media mime-subtype="x-flv" mimetype="video" orientation="portrait"
position="anchor" specific-use="online-format" xlink:href="v1"/>
</alternatives>
</p>
</caption>
<graphic orientation="portrait" position="float" xlink:href="f1"/>
<graphic id="f1a" orientation="portrait" position="float" xlink:href="dummy1.png"/>
<graphic id="f1b" orientation="portrait" position="float" xlink:href="dummy2.png"/>
<graphic id="f1c" orientation="portrait" position="float" xlink:href="dummy3.png"/>
<graphic id="f1d" orientation="portrait" position="float" xlink:href="dummy4.png"/>
</fig>
...Example 6
An example of a triple bond glyph. To a chemist, a triple bond is
not the same as Unicode x2261, but using alternatives, as shown below, is sometimes
the easiest way to display the character visually and still stay within
Unicode:
...
<alternatives>
<textual-form specific-use="unicode-look-alike">≡</textual-form>
<private-char name="Triple Bond" description="Chemistry Triple Bond">
<glyph-data id="tbond" format="PBM" resolution="300"
x-size="16" y-size="32">
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
0001111111111111111111111100000
0000000000000000000000000000000
0000000000000000000000000000000
0001111111111111111111111100000
0000000000000000000000000000000
0000000000000000000000000000000
0001111111111111111111111100000
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
0000000000000000000000000000000
</glyph-data>
</private-char>
</alternatives>
...