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[mkgmap-dev] What is the idea behind --adjust-turn-headings?

From Marko Mäkelä marko.makela at iki.fi on Fri Aug 7 11:44:32 BST 2015

On Fri, Aug 07, 2015 at 12:00:25PM +0200, Gerd Petermann wrote:
>// also helps to produce a turn instruction when the main
>// road bends sharply but the side road keeps close to the
>// original heading

Oh, that would seem to be applicable for a scenario where you have a 
grid of highway=residential, and among them a main road (say, 
highway=tertiary) that is going like zig-zag within the grid. Could it 
be that Garmin is not issuing a turn instruction in this case, when the 
main road consists of a single object (with a sharp turn in it)?

AFAIR, there was another option for implementing support for 
through_route relations, in a case where a main road goes zig-zag 
through a village. Is it still present in the code base? Maybe it makes 
this case of --adjust-turn-headings redundant?


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