[mkgmap-dev] Loops in roads

Wed Jan 8 14:28:52 GMT 2014

Thanks.

I've started to look into why we get all the lost sync messages.

Not found anything that makes sense yet

..Steve

Gerd Petermann <gpetermann_muenchen at hotmail.com> wrote:
>Hi Steve,
>
>attached is my latest version of NodConvert. Maybe it helps you.
>It doesn't contain the changes from r317.
>
>Gerd
>
>Date: Tue, 7 Jan 2014 08:07:21 +0000
>From: steve at parabola.me.uk
>To: mkgmap-dev at lists.mkgmap.org.uk
>Subject: Re: [mkgmap-dev] Loops in roads
>
> 
>Hi Gerd
>> I must confest that I don't fully understand why a loop is causing
>> trouble with routing. Of course, a very simple loop
>> without any exit point is a problem, but why also normal
>> roundabouts? In NOD, we save only parts of the roundabout,
>> so NOD doesn't "see" a loop.
>> Is the reason that we save the way as one polyline in
>> NET and that it has only one ref to NOD?
> 
>I don't know. I have started on my program to display the
>routing graph information on top of the roads.
>I hope it will help to understand what is going on.
> 
>Attached is the first result. Not very useful yet, it displays the
>routing nodes in black with the direction held within each part as a
>short arrow. Best viewed in an svg viewer such as inkscape so you can
>hide layers. I've attached a screen shot as well.
> 
>I based this on NodConvert but it doesn't cope with many files.
>Do you have any updates to NodConvert?
> 
>..Steve
>
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