[mkgmap-dev] Fix Sea Patch

Sat Jan 2 18:18:30 GMT 2021

Hi Mike & Gerd

The floodblocker code is still there and, I think, doesn't work any
better or worse than before. I'd never suggest anyone tried use it to
fix coastline errors and I think it should be removed.

I plan to look through all the sea stuff in detail on Monday

Ticker
On Sat, 2021-01-02 at 17:52 +0000, Mike Baggaley wrote:
> Hi Gerd,
> 
> It was removed in revision 4470. Prior to then 'anti-islands'
> surrounded by
> water were always converted to islands (there was no option as to
> whether
> this happened).
> 
> Cheers,
> Mike
> 
> -----Original Message-----
> From: Gerd Petermann [mailto:gpetermann_muenchen at hotmail.com] 
> Sent: 02 January 2021 10:32
> To: Development list for mkgmap <mkgmap-dev at lists.mkgmap.org.uk>
> Subject: Re: [mkgmap-dev] Fix Sea Patch
> 
> Hi Mike,
> 
> > This was removed some time ago because it didn't work properly
> Do you have a version number where this happened? I only know the
> floodblocker option which is still evaluated in the source.
> 
> Gerd
> 
> 
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag
> von Mike
> Baggaley <mike at tvage.co.uk>
> Gesendet: Donnerstag, 31. Dezember 2020 16:17
> An: 'Development list for mkgmap'
> Betreff: [mkgmap-dev] Fix Sea Patch
> 
> Hi Gerd,
> 
> Mkgmap used to contain some code that attempted to correct incorrect
> sea and
> land data where polygons were ordered in the wrong direction. This
> was
> removed some time ago because it didn't work properly. I have put
> together
> the attached patch that works much better and have been using it for
> some
> time. With the sea data that I use, which contains quite a large
> number of
> incorrectly ordered polygons, it manages to correct every error it
> finds. It
> won't be able to fix really gross errors, but providing most of the
> data is
> correct it will produce good results.
> 
> Please review and commit if happy.
> 
> Cheers,
> Mike
> 
> 
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev