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Eng ID Term Definition
6141
Electronic Navigational Chart (ENC)
The data base, standardized as to content, structure and format, issued for use with ECDIS on the authority of government authorized hydrogr... more
The data base, standardized as to content, structure and format, issued for use with ECDIS on the authority of government authorized hydrographic offices. The ENC contains all the chart information necessary for safe navigation and may contain supplementary information in addition to that contained in the paper chart (e.g. sailing directions) which may be considered necessary for safe navigation.
6142
ENC cell structure
See CELL
6143
ENC test data set
In ECDIS, a standardized data set supplied on behalf of the INTERNATIONAL HYDROGRAPHIC ORGANIZATION (IHO) that is necessary to accomplish al... more
In ECDIS, a standardized data set supplied on behalf of the INTERNATIONAL HYDROGRAPHIC ORGANIZATION (IHO) that is necessary to accomplish all IEC testing requirements for ECDIS.
6144
encapsulation
In ECDIS, the identification of FIELDS and RECORDS and the grouping of fields and records and the data syntax rules used.
6145
exchange format
In ECDIS, a specification for the structure and organization of data to facilitate exchange between computer systems.
6146
exchange set
In ECDIS, the set of FILES representing a complete, single purpose (i.e. product specific) data transfer. The ENC PRODUCT SPECIFICATION def... more
In ECDIS, the set of FILES representing a complete, single purpose (i.e. product specific) data transfer. The ENC PRODUCT SPECIFICATION defines an exchange set which contains one Catalogue file and at least one data set file.
6147
feature
In ECDIS, a representation of a real world phenomenon.
6148
feature object
In ECDIS, an OBJECT which contains the non-locational information about real world ENTITIES.
6149
field
In ECDIS, a named collection of labelled subfield(s). For example, IHO ATTRIBUTE LABEL/CODE and IHO ATTRIBUTE VALUE are collected into a fi... more
In ECDIS, a named collection of labelled subfield(s). For example, IHO ATTRIBUTE LABEL/CODE and IHO ATTRIBUTE VALUE are collected into a field named Feature Record Attribute.
6150
file
In ECDIS, an identified set of S-57 records collected together for a specific purpose. The file content and structure must be defined by a ... more
In ECDIS, an identified set of S-57 records collected together for a specific purpose. The file content and structure must be defined by a PRODUCT SPECIFICATION.
6151
full topology
In ECDIS, a 2-dimensional DATA STRUCTURE in which the geometry is described in terms of NODES, EDGES and FACES which are all TOPOLOGICALLY l... more
In ECDIS, a 2-dimensional DATA STRUCTURE in which the geometry is described in terms of NODES, EDGES and FACES which are all TOPOLOGICALLY linked. A PLANAR GRAPH with faces.
6152
geo object
In ECDIS, a FEATURE OBJECT which carries the descriptive characteristics of a real world ENTITY.
6153
ground stabilization
In ECDIS, a display whereby own ship position is referenced to the ground. It is usually performed in conjunction with radar/ARPA, it can b... more
In ECDIS, a display whereby own ship position is referenced to the ground. It is usually performed in conjunction with radar/ARPA, it can be determined by computing set and drift or by the use of GPS/DGPS.
6154
head-up display
In ECDIS, information shown on a display in such a fashion so that the vessel’s HEADING is always pointing upward. This ORIENTATION corre... more
In ECDIS, information shown on a display in such a fashion so that the vessel’s HEADING is always pointing upward. This ORIENTATION corresponds to the visual view from the bridge in the direction of the ship’s heading. This orientation may require frequent rotations of the display contents. Changing the ship’s course or yawing of the vessel may render this non stabilized orientation mode unreadable. (See COURSE-UP DISPLAY).
6155
IHO Transfer Standard for Digital Hydrographic Data
In ECDIS, a “THEORETICAL DATA MODEL”, “DATA STRUCTURE”, “OBJECT CATALOGUE”, “ENC PRODUCT SPECIFICATION”, “USE OF THE OBJEC... more
In ECDIS, a “THEORETICAL DATA MODEL”, “DATA STRUCTURE”, “OBJECT CATALOGUE”, “ENC PRODUCT SPECIFICATION”, “USE OF THE OBJECT CATALOGUE for ENC” and an “Object Catalogue DATA DICTIONARY Product Specification” for use in the exchange or transfer of digital hydrographic data.
6156
IHO test data set
See ENC test data set.
6157
Issuing Authority
In ECDIS, the official agency which issues nautical chart and updates including ENC’s and ENC UPDATES.
6158
key
In ECDIS, an identifier which establishes linkages, e.g. between different LAYERS, or FEATURES and ATTRIBUTES.
6159
layer
In ECDIS, a group of related information displayed as a who­le.
6160
leg
In ECDIS, a line connecting two WAYPOINTS.