[mkgmap-dev] Precompiled coastlines

Thu Feb 23 18:56:51 GMT 2012

Hi WanMil,

I did not look very deep into this, but it seemed to me that in  SeaGenerator.end() all 
these specific generate-sea options are used. I did not code anything yet, so I'll wait 
to see your solution.

Gerd

> Date: Thu, 23 Feb 2012 19:38:23 +0100
> From: wmgcnfg at web.de
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] Precompiled coastlines
> 
> > Hi,
> >
> > some weeks ago WanMil wrote
> >
> >
> >> ...
> >> All in all: Please keep the format of the bnd files as simple as
> >> possible and think about using it for other purposes. e.g. the current
> >> format could easily be used for coastline processing - one can
> >> precompile the coastlines and mgkmap could load the sea areas from the
> >> precompiled sea file. This would be great to have (a big!! performance
> >> and quality improvement). But someone needs to implement that.
> >>
> >
> > I looked at the sources now and see two ways how to do that:
> > 1) We can write the result of SeaGenerator.joinWays() or
> > 2) We can write the result of SeaGenerator.end()
> >
> > pro 1): this will produce files that are usable for all, no matter what
> > optionsthe user wants to use in
> > generate-sea parm, so it can be downloaded like the precompiled boundaries.
> > pro 2): this should reduce the CPU time even more, but every user has to
> > create his own file(s)
> 
> Hi Gerd,
> 
> why must each user create his own files when using 2)?
> 
> I started to implement the coastline preparer some days ago. (only one 
> evening but I was able to create the first prepared files) I exactly 
> used the 2nd solution. There will be a lot of room for improvements but 
> in a very basic way it works.
> 
> I didn't spend very much time in this so I don't mind if you want to 
> implement your own solution. Please let me know.
> 
> WanMil
> 
> 
> >
> > Any ideas what will be better?
> >
> > Gerd
> >
> >
> > --
> > View this message in context: http://gis.19327.n5.nabble.com/Precompiled-coastlines-tp5507867p5507867.html
> > Sent from the Mkgmap Development mailing list archive at Nabble.com.
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