[mkgmap-dev] Problem in AngleFixer?

Fri Aug 9 11:48:43 BST 2024

Hi Thorsten

I don't see an easy solution to your second example, the "turn-off" is almost
straight on.

I don't understand why my change didn't fix your first example, unless you
allocate different road speed/class for different smoothness, surface, tracktype
tags, in which case the continuous way might be lower priority than the joining
way and the algorithm prefers to this.

Regards
Ticker 

On Thu, 2024-08-08 at 17:11 +0200, Thorsten Kukuk wrote:
> Am 2024-08-08 16:52, schrieb Ticker Berkin:
> > Hi
> > 
> > First of all did you have these values in AngleChecker
> >   COMPACT_DIR_DEGREES = 45+1;
> >   SHARP_DEGREES = COMPACT_DIR_DEGREES;
> > If SHARP_DEGREES is less than this, then, with compactDir format, there 
> > might
> > not be big enough distinction between the directions of the 2 exit ways 
> > to get
> > the correct turn instruction.
> 
> Yes, I haven't changed them. I'm using mkgmap r4921 with your patch.
> 
> > Your second example isn't quite clear; there are 3 3-way junctions near 
> > the
> > coords you gave, and, for one of them, the continuous way bends with 
> > the other
> > way, starting at the node, almost straight on going south. Without 
> > loading these
> > nodes and checking all the initial headings I can't tell which angles 
> > are
> > "sharp" and AngleChecker doesn't do anything if there are no sharp 
> > angles.
> 
> The point is https://www.openstreetmap.org/node/261582603
> The ways are https://www.openstreetmap.org/way/24147681 and 
> https://www.openstreetmap.org/way/24147729
> 
> Thorsten
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