This section explains how to use the Package
Document collection element to create such previews: from defining the necessary role to the requirements for a manifest of resources, as well as which (parts of) Content Documents can be viewed.
The metadata for embedded previews is largely the same as what we just looked at for standalone publications, but where it's expressed differs, as embedded previews are defined in the new package
document collection element.
Not exact matches
To facilitate interoperability of custom roles across Reading Systems, implementers are strongly encouraged to
document their use of the
collection element at http://www.idpf.org/epub/extensions/roles.
No time to explain it today — I'll expand this post later — but if you've followed the Distributable Objects or Scriptable Components specs, it's a quick and dirty XSLT that will convert a package
document to a
collection element for embedding.
If a single index is distributed across multiple content
documents, the index content must be identified using the
collection element of the package
document with the role attribute set to index [DCMIType].
In addition, there is no standard way for a Web site to define that a sequence of pages make up a larger publication, which is precisely what EPUB's spine [Publications301]
element does (i.e., it provides an external declarative means to explicitly specify navigation through a
collection of
documents).
In addition, there is no standard way for a Web site to define that a sequence of pages make up a larger publication, which is precisely what EPUB's spine
element [Packages 3.1] does (i.e., it provides an external declarative means to explicitly specify navigation through a
collection of
documents).
The Package
Document also includes a
collection [Publications301]
element, which allows grouping of logically - related Publication Resources.
The Package
Document also includes a
collection element [Packages 3.1], which allows grouping of logically - related Publication Resources.
The role of each
collection element in the Package
Document must be identified in its role attribute, whose value must be one or more NMTOKENs [XSD - DATATYPES] and / or absolute IRIs [RFC3987].
To facilitate interoperability of custom roles across Reading Systems, implementers are strongly encouraged to
document their use of the
collection element in [Role Extensions].
The
collection element allows resources to be assembled into logical groups for a variety of potential uses: enabling content that has been split across multiple EPUB Content
Documents to be reassembled back into a meaningful unit (e.g., an index split across multiple documents), identifying resources for specialized purposes (e.g., preview content), or collecting together resources that present additional information about the given R
Documents to be reassembled back into a meaningful unit (e.g., an index split across multiple
documents), identifying resources for specialized purposes (e.g., preview content), or collecting together resources that present additional information about the given R
documents), identifying resources for specialized purposes (e.g., preview content), or collecting together resources that present additional information about the given Rendition.
If the
collection contains Nested Objects, each of those Distributable Object
collection elements becomes a top - level distributable - object
collection in the resulting Package
Document.
For more information about the use of the
collection element as a Package
Document, refer to [CollectionPkgInfo].
Each EPUB Dictionary is identified by a
collection element, with its own source - language and target - language properties, and including its own Search Key Map
Document.
The order of child link
elements in a preview
collection represents the order in which the
documents are to be rendered.
The following list provides the general set of steps necessary to translate the
elements of an Embedded Object's distributable - object
collection to a Package
Document.
In this state, the Distributable Object is inseparable from the rest of the content it has been integrated with, and only a
collection element in the Package
Document identifies the metadata and resources necessary to extract it.
Every EPUB Dictionary must contain a dedicated Search Key Map
Document; in other words, two different
collection elements with the role dictionary must not contain link
elements referencing the same Search Key Map
Document.
This exhibition will feature key works from the Museum's
collection, including sculptures in stone, a selection
documenting Noguchi's experimentation with stainless steel and aluminum sculptures from the 1950s, as well as rarely shown pieces from the early 1940s incorporating string and wood
elements.
The archive also
documents his studio at Butler's Wharf in a series of photographs, which was overflowing with a variety of found objects and scrap, from a fighter plane cockpit to a
collection of gongs, all of which were potential
elements of his work.
The second
element of upfront work involves tagging each
document in the
collection with the relevant items from each list.