In the package OpenCPN
, for the US, the data are those of NOAA. Thus, their value is guaranteed. For other areas, we do not know.
In the files produced by other sailor (as French file) or have unknown sources, data quality is not guaranteed even if these files are made seriously. For example, the French file, the data differ slightly from the official data when compared with data from the official French (SHOM)
Make a single
package at all, without distinction between the quality of the data might be problematic.
There should be many files that areas like the language file. The user may choose to view a particular area but it would be possible to display a message indicating the source of data and qualities.
Dave thinks for the amount of work it would take?