Licensing optionsfor this format begin with FME Professional Edition.
Note:This chapter also contains information applicable to theAdditional Military Layers (AML) reader.
Overview
The S-57 Reader module provides FME with access to data in International Hydrographic Organization (IHO) S-57 formatted file sets.
While any S-57 dataset should be supported,this reader has only been fully tested with S-57 Electronic Navigational Chart (ENC) profile 亚搏在线娱乐平台products.Note that S-57 Editions 3.0 and 3.1 are supported.
The S-57 format is a standard published by IHO and more information can be found at:
Some aspects of an S-57 transfer,such as data quality information,is not accessible via the S-57 reader,however,a user well-versed in the S-57 format can extract it using the ISO8211 reader.
Reader Overview
The S-57 Reader module produces FME features for all S-57 features in one or more related S-57 data files.An S-57 dataset can be an S-57 catalog file (in which case,all files referred to from the catalog are selected),or an individual S-57 data file.
S-57 feature objects are translated into FME features.S-57 geometry objects are automatically collected and formed into geometries on the features.Geometry objects are not separately accessible with the S-57 reader.
The reader supports S-57 update files.S-57 update files contain information on how to update a distributed S-57 data file.Update files have a file extension of 001,002,etc.
Soundings
Depth soundings are handled somewhat specially in the S-57 format to efficiently represent the many available data points.In S-57,one sounding feature can have many sounding points.
The FME S-57 reader splits each sounding point into its own feature type,SOUNDGfeature,with ans57_typeofs57_point3d.
All soundings from a single feature record have the sameAGEN,FIDN,FIDS,andLNAMvalues.