https://sourceforge.net/p/libpninx/wiki/The%2520Basic%2520Concepts/Recent changes to The Basic ConceptsenTue, 06 Mar 2012 15:00:09 -0000https://sourceforge.net/p/libpninx/wiki/The%2520Basic%2520Concepts/<pre>--- v1 +++ v2 @@ -1,1 +1,16 @@ # The Basic Concepts behind Nexus # + +This section gives an rough overview over the Nexus file format and how its components are mapped onto C++ classes. Clearly, this is not a full description of Nexus. For more detailed information see the [Nexus web site](http://www.nexusformat.org). + + +## Low level objects ## +Nexus organizes data in a tree like structure within a single file. The concept is pretty much the same as for HDF5. For those not familiar with HDF5 think about a file-system. Data is stored in fields which can be imagined as multidimensional arrays where all elements share the same data-type. In the file-system picture such a field would correspond to a file and in the HDF5 world it would be a dataset. The fields are organized within groups which can be imagined as directories (if you like file-systems) or - well - as a group from an HDF5 programmers point of view. It is possible to create symbolic links between objects within a single file or even between objects in different files. +Thus groups and fields are the most important objects in the Nexus world. +Attributes can be attached to these objects to store some metadata. + +To be finished ... + + + + + </pre>Eugen WintersbergerTue, 06 Mar 2012 15:00:09 -0000https://sourceforge.netce8864c996623db58c819c9ffca9b7c9d7a095aahttps://sourceforge.net/p/libpninx/wiki/The%2520Basic%2520Concepts/# The Basic Concepts behind Nexus #Eugen WintersbergerTue, 06 Mar 2012 14:42:27 -0000https://sourceforge.net36cf7656c3c9eb58e0fc21725d6a4137bd804c52