Re: [mkgmap-dev] special cases with short arcs

2013-09-25 Thread Gerd Petermann
Hi, I think these problems are not related to short arcs. Please try smaller values for the reduce-* options. Gerd From: rheinskipper1...@gmx.de To: mkgmap-dev@lists.mkgmap.org.uk Date: Wed, 25 Sep 2013 09:46:44 +0200 Subject: Re: [mkgmap-dev] special cases with short arcs I still have

Re: [mkgmap-dev] special cases with short arcs

2013-09-25 Thread Gerd Petermann
: rheinskipper1...@gmx.de To: mkgmap-dev@lists.mkgmap.org.uk Date: Wed, 25 Sep 2013 10:15:52 +0200 Subject: Re: [mkgmap-dev] special cases with short arcs The screenshots were done with: reduce-point-density=1reduce-point-density-polygon=1Von: mkgmap-dev-boun...@lists.mkgmap.org.uk [mailto:mkgmap-dev

Re: [mkgmap-dev] special cases with short arcs

2013-09-25 Thread GerdP
Hi, GerdP wrote I just wonder if anybody ever tried to use a very simple trick: If I remember correctly, we calculate and write the arc length to the img file. What happens if we just make sure to write the minimum length (e.g. 3.5m), no matter how short the arc really is? I tried it, but

Re: [mkgmap-dev] special cases with short arcs

2013-09-25 Thread RheinSkipper
...@lists.mkgmap.org.uk] Im Auftrag von Gerd Petermann Gesendet: Mittwoch, 25. September 2013 10:32 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] special cases with short arcs Hi, okay, so what exactly would you like to see if you reduce the resolution? I am not sure about

Re: [mkgmap-dev] special cases with short arcs

2013-09-25 Thread GerdP
(which I want to show up at max zoom only). Von: mkgmap-dev-bounces@.org [mailto: mkgmap-dev-bounces@.org ] Im Auftrag von Gerd Petermann Gesendet: Mittwoch, 25. September 2013 10:32 An: mkgmap-dev@.org Betreff: Re: [mkgmap-dev] special cases with short arcs Hi

[mkgmap-dev] special cases with short arcs

2013-09-24 Thread GerdP
Hi, I am trying to find a better algo for the handling of short arcs. (Garmins routing algo refuses to route over short arcs) The typical case of a short arc is a crossing like here: http://www.openstreetmap.org/browse/node/1449682318 We don't lose much information if we merge the node with node

Re: [mkgmap-dev] special cases with short arcs

2013-09-24 Thread Andrzej Popowski
Hi, I'm doing similar processing for cgpsmapper. My algorithm is following: First I try to remove very short lines. I don't remove lines which are a part of roundabout, restriction or road sign. I check ending nodes of short lines and don't remove lines if any node is external (on tile

Re: [mkgmap-dev] special cases with short arcs

2013-09-24 Thread GerdP
Hi Andrzej, thanks for the hints. I just wonder if anybody ever tried to use a very simple trick: If I remember correctly, we calculate and write the arc length to the img file. What happens if we just make sure to write the minimum length (e.g. 3.5m), no matter how short the arc really is?

Re: [mkgmap-dev] special cases with short arcs

2013-09-24 Thread WanMil
Good idea! It is also possible that the --process-exits and --process-destination options might create several ways with short arcs. I should change it so that both options do not create ways shorter than the shortest allowed arc. WanMil Hi Andrzej, thanks for the hints. I just wonder if