Entity grid_modification

• A set of adjacent grid elements, defined by two bounding elements, that are modified by another grid. This may be grid refinement (large cells replaced by small cells) or grid coarsening (small cells replaced by large cells).

Subtypes:

grid_coarsening_modification, grid_refinement_modification

Attribute                                 Flags   Data Type

From transient_association:
   data_collection                        IV      set[0 .. N] of (data_collection)

                                          Indicates the data collections that include this
                                          instance of E and P data. 

   graphical_element                      IV      set[0 .. N] of (graphical_element)

                                          Specifies one or more graphical elements which
                                          are depicting this data item. 

   description                            I       ndt_comment

                                          A description of the transient association. 

   duration                               IN      ndt_time

                                          Defines the duration of the association expressed
                                          in any valid units of time. 

   end_time                               IN      ndt_date_tod

                                          End time of the association. 

   start_time                             IN      ndt_date_tod

                                          Start time of the association. 

   caused_by                              I       activity

                                          Specifies the activity which establishes this
                                          association. 

   terminated_by                          I       activity

                                          Specifies the activity which established the
                                          termination of a transient association between
                                          two objects. 


first_element                             M       ndt_pint4

                                          The element of the target grid that is the lower
                                          bound of the portion being modified. 

ref_element_kind                          M       ref_element_kind

                                          The kind of element being used to delimit the
                                          refined portion of the target grid. 

second_element                            M       ndt_pint4

                                          The element of the target grid that is the upper
                                          bound of the portion being modified. 

target_grid                               M       grid_structured

                                          Indicates the grid for which this modification
                                          is created to modify. 

source_grid                               M       grid_structured

                                          Indicates the grid that is being used as the
                                          modification to the target grid. The source grid
                                          replaces the portion of the target grid designated
                                          by this modification. 

End of entity grid_modification

M - mandatory, U - unique, I - inherited, V - inverse, N - named type