Desired format

[Skippern]

What is the desired format, which of the examples and tests would be the best choice for maintenance and usage?

The CSV allows for easy editing to add more charts of needed, and can easily be used for national series in addition to INT

[Dirk--]

here comes my .geoJSON example:
http://kap.grade.de/int-chart-ol2.html

[Skippern]

Nice visualisation, maybe you can share any scripts for preparing the geoJSON in the repo?

[Dirk--]

in brief:
http://wiki.openseamap.org/wiki/OpenSeaMap-dev:Catalogue_of_INT_Charts#geoJSON