ditigising a map for a free data set.
If I use a nautical chart and digitise the coastline to some
degree of precision, can I then slap my own (free) license on the
Or is that a partial `reproduction' that falls under the
original's chart copyright?
If getting the lat and lon of the coastline is considered a
partial reproduction: Using that argument, I couldn't use a chart
to pick out the position of a city and publish that. Where's the
line? Is it like code? (Use more than a few lines and copyright
applies, so the lat/lon of a city is okay, but not some extended
part of a coastline?)
This came up on the GMT mailing list. Thanks for your opinion.