[mkgmap-dev] [PATCH v3] sea polygons

Sat Aug 8 14:11:58 BST 2009

2009/8/8 Christian Gawron <christian.gawron at gmx.de>:
> Here is an improved version of the sea polygon patch which also handles
> shorelines intersecting the boundary of the map (set by the <bounds>
> element).
>
> I have tested it with Ireland - there are still some islands which are
> "flooded", so the patch should not be considered "final".

Hi Christian,

This works amazingly well. Danke dir! As you say, it's not quite
perfect - I haven't looked in enough detail to find the flooded
islands, but I have seen that at lower zoom levels, there are
artefacts of "land" in grid-patterns in the sea, presumably on the
interfaces of your sea polygons. Nothing to get worked up about,
though.

I'll be converting the map for use in Road Trip, which should allow me
to grab screen shots, though I suppose you can probably see everything
I can.

I'll keep playing, but for now I'm very happy!
Dermot

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