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(See also S-52, sections 1.2.3 and 1.2.4)
Amendments to the Presentation Library, if available, will be posted on the IHO website (www.iho.int > Standards & Publications > Download > Maintenance Section).
An immediate amendment (but not a deferred amendment) will change the edition number of the Presentation Library.
The edition number of the PresLib installed shall be available to the Mariner on request.
The PSLBmm_n.dai file has a particular internal structure. In the format description (see section 12), several constructs (modules, fields, etc.) are used to convey colour tables, look-up tables, symbols, patterns and linestyles.
The transfer file is formed of one or more modules. Each module is formed of one module record. Each module record is formed of one or more fields which in turn is formed of one or more subfields.
This structure is explained below:
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