<arc> Arc

Specifies the rules for traversal among the participating resources in an extended link. Arc uses the attributes to and from to define the traversal between named pairs of resources. It may occur within <daogrp> and <linkgrp>.


  • ALTRENDER – not required. Use if the content of the element should be displayed or printed differently than the rendering established in a style sheet for other occurrences of the element.
  • AUDIENCE – not required. Use to set whether the element’s contents will be visible to external users or to internal ones. Possible values are: “internal” and “external.”
  • ID – not required. Creates an ID for element. Can be used for linking.
  • ACTUATE – not required. Controls whether the link occurs automatically or requires user request. Values are: “onload” (automatically), “onrequest” (if user requests), “actuateother” (some other action occurs), and “actuatenone” (no action occurs).
  • ARCROLE – not required. URI preference that identifies a resource that describes some property of an arc-type or simple-type linking element.
  • FROM – not required. Resource from which traversal may be initiated, that is, a starting resource, in an extended link. Name token.
  • LINKTYPE – fixed. Value must be “arc.”
  • SHOW – not required. Used in conjunction with ACTUATE to define whether a remote resource that is the target of a link appears at the point of the link, replaces the existing link, or appears in a new window. Possible values are: “embed” (target displays at point of link), “new” (target appears in new window), “replace” (target resource replaces currently-displayed resource), “showother” (take some other action), and “shownone” (no target resource displays).
  • TITLE – not required. A viewable caption.
  • TO – not required. Specification of a resource that may be traversed to, that is, an ending resource, in an extended link. Name.




<c02 level="file">
		<unittitle>Photographs of John Smith and family members</unittitle>
		<unitdate type="inclusive" normal="1895/1928">1895-1928</unitdate>
		<daogrp linktype="extended">
				<p>Sample digitized image from this file: John Smith graduation
				portrait, <date normal="18950528">28 May 1895</date>.</p>
			<resource linktype="resource" label="start"/>
			<daoloc entityref="f0042_1tmb" linktype="locator" label="thumb"/>
			<daoloc entityref="f0042_1ref" linktype="locator" label="reference"/>
			<arc linktype="arc" show="embed" actuate="onload" from="start" to="thumb"/>
			<arc linktype="arc" show="new" actuate="onrequest" from="thumb" to="reference"/>

EAD tag library entry for <arc>.