Research On ECDIS Presentation Library For River-and-ocean Intermodal Ships

Along with the economic development of the Yangtze River Basin and the increase in the port opening to the outside world,river-and-ocean going transport vessels (including the foreign ship) increasing. In order to meet the demand of inland ships,offshore vessels,ocean-going vessels,Yangtze River shipping-related departments and institutions for electronic charts combined electronic path charts , the production and dissemination of Yangtze River electronic path charts should be complianced with international standards related to electronic chart in general, at the same time,it can be able to adequately meet the actual needs of the Yangtze River Shipping. Therefore, a suitable use of the sea and the river ECDIS standards is of great social and economic benefits.With modernized degree of navigation technology improved increasingly and the computer technology riped gradually, IHO S-52 Presentation library has been realized and applied in seagoing ships widely. In order to make river-and-ocean intermodal symbol library perfect and lay the foundation for achieving the use of river-and-ocean intermodal ECDIS Presentation library for river-and-ocean intermodal ships, on the basis of the symbol library of IHO S-52 Presentation library, researching the way of increasing river object symbols. The main work of this thesis is:The first is the reseach of the object symbol classification. The main line is to make the symbol library perfect according to add object symbols. After repeated research with experts from the Yangtze River Navigation Bureau and the Yangtze River Waterway Bureau, Collecting objects that has impact on the safety of navigation in the rever and besides, According to the method described objects from S-57 to create a complete river-and-ocean intermodal Objects Category.The second is to research the methods that symbolize the new symbols. Symbolizing the new symbols by IHO S-52 Presentation library vector format description of the symbols. Describ the size,the line width,the color of the new symbols with the Presentation library vector language,take one example from point symbols,line symbols and Filled symbols respectively to reseach their symbolizd format.Making river-and-ocean intermodal Presentation library perfect gradually is an arduous and long-term task, we also need further reseach in order to let it be applicated in our work.We should try our best to do it.