Meta Info Handling

Class List

see also: InfoViewer

Intro

The image interface purposefully provides only a minimal set of information about the image, namely size, origin, sampling, domain, and data-type. All additional information (such as instrument details, experimental batch number, etc) is considered meta-information, and is organized in a hierarchical tree.

As indicated by the following diagram, the InfoHandle provides the root of the tree, whose nodes may be accessed via InfoGroups, and whose leafs may be accessed via InfoItems. A group is characterized by a name, and an item is characterized by a name/value pair, plus an arbitrary amount of Attributes, each in themselves a name/value pair.

Ultimately, all three info classes are implemented by thin-wrappers on top of a XML-DOM representation, provided in this case by Xerces-C

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