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software:gplates:grot:start [2020/09/17 20:22] – [Dublin Core document metadata] christiansoftware:gplates:grot:start [2021/07/28 16:51] (current) – [Rotation Line Data] christian
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 With the advent of GPlates 1.5 came the ability to read a new version of the rotation file format called ''*.grot''. In analogy to ''JSON'' and ''OGR_GMT'' formats it allows for much more verbose and structured addition of metadata to rotation sequences. With the advent of GPlates 1.5 came the ability to read a new version of the rotation file format called ''*.grot''. In analogy to ''JSON'' and ''OGR_GMT'' formats it allows for much more verbose and structured addition of metadata to rotation sequences.
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-''Revision: 1793 Date: 2012-05-11'' 
  
 ^ Revision      ^ GROT version ^ Date      ^ ^ Revision      ^ GROT version ^ Date      ^
 | 1 (svn: 1793) | 1.0         | 2012-05-11 | | 1 (svn: 1793) | 1.0         | 2012-05-11 |
  
 +For the document revisions, please see the [[https://wiki.paleoearthlabs.org/software/gplates/grot/start?do=revisions|History of this page]].
  
   - [[.:attributenames|GROT format attribute names]]   - [[.:attributenames|GROT format attribute names]]
   - [[.:examplefiles|Example files]]   - [[.:examplefiles|Example files]]
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- 
 ===== Introduction ===== ===== Introduction =====
  
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-====== GROT File format: File header [mandatory] ======+====== File header elements ======
  
 New GPlates rotation files have a mandatory file header which must be present in all rotation files. The file header contains important information on how to processes different parts of the file and also carries important metadata, such as information on the Geological Time Scale used for rotations. The file header contains global metadata which are referenced in the file body. It adheres to specific format and contains mandatory attributes Apart from the mandatory metadata in the header, there are also optional blocks which allow the user to put revision information or any other data the user finds necessary. Future version of GPlates (> 1.3) will include the opportunity to edit this information through a GUI. New GPlates rotation files have a mandatory file header which must be present in all rotation files. The file header contains important information on how to processes different parts of the file and also carries important metadata, such as information on the Geological Time Scale used for rotations. The file header contains global metadata which are referenced in the file body. It adheres to specific format and contains mandatory attributes Apart from the mandatory metadata in the header, there are also optional blocks which allow the user to put revision information or any other data the user finds necessary. Future version of GPlates (> 1.3) will include the opportunity to edit this information through a GUI.
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 </code> </code>
  
-==== Bibliographic and reference section ====+===== Bibliographic and reference section =====
  
 The next mandatory block encompasses the bibliographic or reference data valid for the file globally. The field contain a reference to a bibliographic data base in BibTeX format as well as to the GPlates Information Model (GPGIM) website and a base URL for the [[https://doi.org|Digital Object Identifier (DOI)]]. All these attribute will be referenced from the individual MPRS or rotations. The next mandatory block encompasses the bibliographic or reference data valid for the file globally. The field contain a reference to a bibliographic data base in BibTeX format as well as to the GPlates Information Model (GPGIM) website and a base URL for the [[https://doi.org|Digital Object Identifier (DOI)]]. All these attribute will be referenced from the individual MPRS or rotations.
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 </code>   </code>  
    
-==== Geological time scales ====+===== Geological time scales =====
  
 One of the most important piece of metadata is information about the geological time scales (GTS) used to convert relative geological ages to absolute times.  One of the most important piece of metadata is information about the geological time scales (GTS) used to convert relative geological ages to absolute times. 
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 </code> </code>
  
-==== OPTIONAL: Revision history ====+===== OPTIONAL: Revision history =====
  
 The optional revision history block is used for versioning. The actual list of applicable subattributes depends on the versioning system used.  The optional revision history block is used for versioning. The actual list of applicable subattributes depends on the versioning system used. 
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-====== File body: The rotation sequences ======+====== File body elements: The rotation sequences ======
  
 The file body contains all data outside the file header. These are Moving Plate Rotation Sequences (MPRS) which are in turn composed of individual lines listing rotation parameters. The file body contains all data outside the file header. These are Moving Plate Rotation Sequences (MPRS) which are in turn composed of individual lines listing rotation parameters.
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 ^ Parameter name ^ Description ^ ^ Parameter name ^ Description ^
-|PID1 | Plate ID 1 (moving plate) |+|''PID1'' | Plate ID 1 (moving plate) |
 |''FromAge''| Excuse the french. Start age. | |''FromAge''| Excuse the french. Start age. |
-|POLELAT | Rotation pole latitude | +|''POLELAT'' | Rotation pole latitude | 
-|POLELON | Rotation pole longitude | +|''POLELON'' | Rotation pole longitude | 
-|ANGLE | Rotation pole angle | +|''ANGLE'' | Rotation pole angle | 
-|PID2 | Fixed Plate, plate ID 2 |+|''PID2''| Fixed Plate, plate ID 2 |
  
 New optional meta data attributes from the dictionary can be added to the individual lines. Rotation metadata attributes The optional attributes follow the structure layed out in Sec. FIXME  and can consist of the following elements: New optional meta data attributes from the dictionary can be added to the individual lines. Rotation metadata attributes The optional attributes follow the structure layed out in Sec. FIXME  and can consist of the following elements: