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[mkgmap-dev] Oneway

From Dave Swarthout daveswarthout at gmail.com on Sun Feb 22 23:52:33 GMT 2015

Many thanks.

Dave

On Sun, Feb 22, 2015 at 8:47 PM, Gerd Petermann <
gpetermann_muenchen at hotmail.com> wrote:

> Hi Dave,
>
> yes, I think you got it. One special case:
> mkgmap reverses the order of the points
> for a routable way with oneway=-1 tag .
>
> Gerd
>
> ------------------------------
> From: daveswarthout at gmail.com
> Date: Sun, 22 Feb 2015 20:19:46 +0700
> To: mkgmap-dev at lists.mkgmap.org.uk
> Subject: Re: [mkgmap-dev] Oneway
>
>
> No, everything is working as it should. I merely wanted to better
> understand how decisions are made about displaying the arrows in the
> correct direction. It is not obvious from reading TYP files or style
> directives how this is done. So if I reword my question again, let's say
> you have a dual carriageway. Both lanes have the same oneway=yes tag and
> both use the same TYP code. Yet one lane displays the arrows pointing left
> to right, while the other lane has them pointing right to left. Either the
> Garmin unit or mkgmap has to decide how to draw those arrows.
>
> From what you are saying, I'm assuming it's the direction the way was
> drawn that determines the directionality of those arrows. And furthermore,
> it is the Garmin software (and Basecamp) that actually makes the decision
> based on information in the IMG file. Is that correct?
>
> Thanks for taking the time to answer....
>
>
> On Sun, Feb 22, 2015 at 6:48 PM, Andrzej Popowski <popej at poczta.onet.pl>
> wrote:
>
> Hi Dave,
>
> Garmin format as used in img allows only for equivalent of oneway=1.
> Mkgmap have to reverse line direction in case of oneway=-1. So you need
> only one pattern in TYP file, with arrows pointing form left to right.
> Actually it means arrows pointing from start of a line towards its end.
>
> I'm trying to guess what is your real question. Do you get arrows pointing
> in wrong direction?
>
> --
> Best regards,
> Andrzej
>
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>
>
>
>
> --
> Dave Swarthout
> Homer, Alaska
> Chiang Mai, Thailand
> Travel Blog at http://dswarthout.blogspot.com
>
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-- 
Dave Swarthout
Homer, Alaska
Chiang Mai, Thailand
Travel Blog at http://dswarthout.blogspot.com
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