
IMO provides in deep information about the problems occur when using vector or raster charts; see "SN/Circ.207/Rev.1 - Differences between RCDS and ECDIS".
Direct comparison of a chartlet showing a part of a New York fairway underlines the advantages of vector presentation. The vector presentation offers a lot of additional information. A mouse click allows the user to obtain a lot of information coded in various objects on the same geometry (in this case the point of the mouse). The presentation of information depends on ECDIS manufacturer's software and may differ from the image provided here.
Raster presentation can not provide more information than displayed on the image of the chart.
![]() | Raster ChartSource: NOAA Chart 12334 |
| Vector ChartSource: NOAA Cell US5NY1CM.000 |