Converter from S57 format

Task is intended for execution of converting of the information from S57 format into format of a vector map of Map 2011 system.

The given version of converter processes the input data for EN profile of S57 standard.

Created vector map will correspond to Transverse Mercator projection.

Input information for execution of the task are:

- data catalogue in S57 format (030 extension) or a data file (000 extension);

- resources classifier by which the source map (RSC extension) will be converted.

Together with converter the file of classifier S57NAVY.RSC is delivered, which describe objects of sea charts and their attributes according to requirements of S57 standard. The user can use this classifier or create the own one.

After input of the source information the user can change the region name of output map (originally it coincides with filename of S57 format without extension) and a name of an output vector map (originally it coincides with a name of S57 format file, but with MAP extension).

After finishing of entering of the input data and updatings of output data the user can press Execute button to start the process of converting.

During converting the following information is given to the user:

- amount of convertible sheets (catalogue S57 can refer to some data files);

- amount of created objects in a processed sheet;

- amount of errors in a processed sheet;

- total errors at processing all sheets.

The user has an opportunity to interrupt execution of process, having pressed Cancel button.

As a result of converting the vector map (MAP) will be created, if as the input information the catalog of data in S57 format has been chosen, or the user vector map (SIT), if as the input information the file of data in S57 format has been chosen.

The created vector map opens and is displayed automatically. After that it is necessary to execute its sorting (Map Sorting item of Tools menu ).

Codes of map objects, codes of objects attributes and their values coincide with codes of the classifier of standard S57. In addition the service codes of attributes (semantics) are entered:

32778 - subfield value FIDS of FOID field of standard S57;

32779 - subfield value FIDN of FOID field of standard S57;

32800 - a code of object which is not described yet in the classifier (RSC);

32801 - an attribute of object having the reference to subordinated object (marks of depths refer to titles);

32802 - an attribute of object onto which there is a reference from the main object;

32803 - an attribute of object which is included in group of equitable objects (marks of depths are united into groups);

The list of service semantics can be expanded further.