Hi,

I think I'll try to change this:
1) Put large objects (large bbox, maybe only few points as with 0x4b background polygon)
into there own sub divs and don't add small objects to those sub divs
2) Create smaller sub divisions in dense areas

I don't know yet how to do that, so I'll sleep about about again ;-)

Gerd

> Date: Thu, 13 Nov 2014 13:20:42 +0100
> From: popej@poczta.onet.pl
> To: mkgmap-dev@lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] Optimizing MapSplitter
>
> Hi Gerd,
>
> I test maps at my current location, which is near the center of Gdañsk,
> so it is rather dense map here. This 50% difference was in redraw time
> from nuvi menu "Dispaly Map" to fully rendered map. It was about 4
> seconds for mkgmap and faster cgpsmapper and about 6 seconds for slower
> version of cgpsmapper compilation.
>
> Some more statistics:
> 29483017.img
> level 4: resolution 17, subdivisions 1
> level 3: resolution 18, subdivisions 7
> level 2: resolution 20, subdivisions 24
> level 1: resolution 22, subdivisions 173
> level 0: resolution 24, subdivisions 423
>
> 29483018.img
> level 4: resolution 17, subdivisions 1
> level 3: resolution 18, subdivisions 7
> level 2: resolution 20, subdivisions 36
> level 1: resolution 22, subdivisions 429
> level 0: resolution 24, subdivisions 3979
>
> 29483019.img
> level 4: resolution 17, subdivisions 1
> level 3: resolution 18, subdivisions 4
> level 2: resolution 20, subdivisions 35
> level 1: resolution 22, subdivisions 221
> level 0: resolution 24, subdivisions 367
>
> --
> Best regards,
> Andrzej
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev@lists.mkgmap.org.uk
> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev