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<body class='hmmessage'><div dir='ltr'>Hi,<br><br>I think I'll try to change this:<br>1) Put large objects (large bbox, maybe only few points as with 0x4b background polygon) <br>into there own sub divs and don't add small objects to those sub divs<br>2) Create smaller sub divisions in dense areas<br><br>I don't know yet how to do that, so I'll sleep about about again ;-)<br><br>Gerd<br><br><div>> Date: Thu, 13 Nov 2014 13:20:42 +0100<br>> From: popej@poczta.onet.pl<br>> To: mkgmap-dev@lists.mkgmap.org.uk<br>> Subject: Re: [mkgmap-dev] Optimizing MapSplitter<br>> <br>> Hi Gerd,<br>> <br>> I test maps at my current location, which is near the center of Gdańsk, <br>> so it is rather dense map here. This 50% difference was in redraw time <br>> from nuvi menu "Dispaly Map" to fully rendered map. It was about 4 <br>> seconds for mkgmap and faster cgpsmapper and about 6 seconds for slower <br>> version of cgpsmapper compilation.<br>> <br>> Some more statistics:<br>> 29483017.img<br>> level 4: resolution 17, subdivisions 1<br>> level 3: resolution 18, subdivisions 7<br>> level 2: resolution 20, subdivisions 24<br>> level 1: resolution 22, subdivisions 173<br>> level 0: resolution 24, subdivisions 423<br>> <br>> 29483018.img<br>> level 4: resolution 17, subdivisions 1<br>> level 3: resolution 18, subdivisions 7<br>> level 2: resolution 20, subdivisions 36<br>> level 1: resolution 22, subdivisions 429<br>> level 0: resolution 24, subdivisions 3979<br>> <br>> 29483019.img<br>> level 4: resolution 17, subdivisions 1<br>> level 3: resolution 18, subdivisions 4<br>> level 2: resolution 20, subdivisions 35<br>> level 1: resolution 22, subdivisions 221<br>> level 0: resolution 24, subdivisions 367<br>> <br>> -- <br>> Best regards,<br>> Andrzej<br>> _______________________________________________<br>> mkgmap-dev mailing list<br>> mkgmap-dev@lists.mkgmap.org.uk<br>> http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev<br></div> </div></body>
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