Raster nautical charts:

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Format description:

A marine chart in raster format sometimes called a matrix represents the image of a nautical chart associated with complete geo-referencing information making it possible to know with great precision the geography position of each point on the chart. Older raster charts were originally a scan reproduction of a paper chart. This type of chart is very comfortable to use and has all the details that can be found on a paper chart.

Une
carte marine raster.

Preview of a small part of a raster chart (SHOM)

Raster charts are generally distributed in BSB 1,2 and 3 format.
They are recognized as follows:
BSB1: 1 CHARTHDR folder + 1 folder per card
BSB 2, 3: KAP files

The United States distribute all their cartography free of charge in BSB 3 format.

SHOM now distributes its raster charts in GeoTIFF format. Only the installation differs but you will not see the difference in use.

More details on GeoTIFF charts distributed by SHOM here

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Ultra fast automatic installation in 3 clicks.

Complete uninstallation from the start menu.