[talk-au] Australian Coastline

[John Smith]

On 25 May 2010 20:28, Markus <markus_g at bigpond.com> wrote:
> You still haven't explained how to check the whole coastline is joined with
> JOSM. You mensioned JOSM has a validation checker that should be used for
> this kind of thing.

Click to display the validation plugin panel or press Alt+Shift+V then
click on the validate button, make sure nothing is selected or only
the selection with be validated, you could make things a little more
specific by first searching for natural=coastline segments.

> The renders I create for Garmin Mapsource has problems if the coastline
> isn't joined.

So does mapnik, but they cheated to get round most problems by
creating a shape file first.

> The 2000 node limit for polygons is documented to be over come by using a
> relation.

Which was made redundent by creating shape files from the coastline
segments before relations existed, although this is probably still a
lot more useful.

> The maritime borders are 12nm out to sea from the coastline. See below link.

Yes, but coastlines should be much less nodes otherwise you start
hitting problems similar to those in the Philippines...