> Date: Tue, 14 Jan 2014 14:23:51 +0000
> From: steve@parabola.me.uk
> To: mkgmap-dev@lists.mkgmap.org.uk
> Subject: [mkgmap-dev] Routing
>
> Hi
>
> I've been looking into routing and I have updated NodDisplay
> so that it mostly works on any file.
> I've not discovered much that wasn't known before, apart from
> a compact way of storing directions that is probably suitable
> for short roads. There is a destination road-class field in
> the node flags that we do not seem to set, so we should fix that.
>
> I am in the process of updating the nod.txt file with everything I've
> learned so far.
>
> There are also two new programs.
>
> 1. test.check.NodCheck reads in a NOD file and cross checks
> various things. So it can tell you if the angle in NOD is similar
> to the actual angles between two nodes. Files give lots of errors,
> but it doesn't mean that they are wrong, just things to look into.
>
> 2. test.svg.Main Converts the routing graph to an SVG file that
> can be displayed in inkscape (and perhaps other SVG viewers).
> The idea is to be able to visualise what is going on. Only a
> portion of the file is processed, since the output is very
> large.
>
> They are only of use if you want to look into the routing code. The
> output will make no sense at all if you are not familiar with it,
> and possibly even if you are ;)
>
> ..Steve
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