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[mkgmap-dev] [PATCH v1] grok unpavedness

From Felix Hartmann extremecarver at googlemail.com on Mon Dec 7 22:14:45 GMT 2009

On 07.12.2009 22:36, Mark Burton wrote:
> Bloody typical, you wait around for ages hoping for a new routing
> capability to be added to mkgmap and then two come along on
> the same day.
> I've been trying to discover how unpavedness is encoded for at least 6
> months. Every now and again, I return to think about it some more.
> Check and re-check the same old data structures. Very
> frustrating, no progress. Damn those cunning bastards at Garmin....
> However, a month or two ago, I discovered that Table C contains more
> than just turn restrictions. I still don't know many of it's little
> secrets but, today, having exhausted all other possibilities, I finally
> twigged that Table C contains the key to understanding "unpavedness".
> Gotcha!
> The attached patch allows you to add either unpaved=yes/true/1 or
> paved=no/false/0 to a way and then it will be ignored for routing
> purposes when the GPS has been told to avoid unpaved roads.
> Not sure if those are the best tags to use - any thoughts?
> BTW - the unpaved road line type 0x0a has nothing to do with
> unpavedness, it's just a routable way that gets drawn as a dashed line
> (default rendering).
> Feedback, etc.
> Mark
I have problems compiling with that patch:

     [javac] Compiling 317 source files to 
illegal start of expression
     [javac]             if(way.isBoolTag("unpaved") || 
     [javac] 1 error

Will try again against a clean trunk but I am not using many patches 
currently (basicly only the blacklist/whitelist patch plus some simple 
value changes that should not affect anything).
BTW I think the blacklist / whitelist tag file patch would be good to 
include as no-one noticed anything broken (I don't need it and just used 
it for testing - but I think it can be useful for some mapmakers).
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