Hi, I just noticed some malformed shapes and other issues on my map of Finland (mkgmap 2960) 1) Here you can see marina in Tampere FIN: https://lh3.googleusercontent.com/-imfiglzjDoY/UtPvvtgjozI/AAAAAAAAASs/0UYno... As you see some piers are missing: http://www.openstreetmap.org/#map=17/61.50956/23.77275 2) Also some shapes are malformed: https://lh6.googleusercontent.com/-mgouh6oXCmg/UtPvwTjnfUI/AAAAAAAAATI/Rvx5H... https://lh5.googleusercontent.com/-FzxBR8RKwuo/UtPvwbqWHHI/AAAAAAAAASM/GQNXj... Here same places on OSM: http://www.openstreetmap.org/#map=19/61.51038/23.76961 http://www.openstreetmap.org/#map=19/61.50888/23.77463 3) Here is one place with a lot of disconected roads: https://lh6.googleusercontent.com/-nP6DcUoVqS4/UtPvvmmUYNI/AAAAAAAAAS4/IVDlO... Same place on OSM looks nicer: http://www.openstreetmap.org/#map=19/61.50778/23.77253 4) Same road are interupted in certain zoom level: https://lh5.googleusercontent.com/-Rf2ob4Q_fQ0/UtPvvtrrJLI/AAAAAAAAAR0/Vasf4... regards mira
Hi Mira, please let us know the parameters for mkgmap. Gerd
From: mira.mikes@seznam.cz To: mkgmap-dev@lists.mkgmap.org.uk Date: Mon, 13 Jan 2014 15:25:32 +0100 Subject: [mkgmap-dev] Malformed piers and other issues
Hi,
I just noticed some malformed shapes and other issues on my map of Finland (mkgmap 2960)
1) Here you can see marina in Tampere FIN: https://lh3.googleusercontent.com/-imfiglzjDoY/UtPvvtgjozI/AAAAAAAAASs/0UYno...
As you see some piers are missing: http://www.openstreetmap.org/#map=17/61.50956/23.77275
2) Also some shapes are malformed: https://lh6.googleusercontent.com/-mgouh6oXCmg/UtPvwTjnfUI/AAAAAAAAATI/Rvx5H... https://lh5.googleusercontent.com/-FzxBR8RKwuo/UtPvwbqWHHI/AAAAAAAAASM/GQNXj...
Here same places on OSM: http://www.openstreetmap.org/#map=19/61.51038/23.76961 http://www.openstreetmap.org/#map=19/61.50888/23.77463
3) Here is one place with a lot of disconected roads: https://lh6.googleusercontent.com/-nP6DcUoVqS4/UtPvvmmUYNI/AAAAAAAAAS4/IVDlO...
Same place on OSM looks nicer: http://www.openstreetmap.org/#map=19/61.50778/23.77253
4) Same road are interupted in certain zoom level: https://lh5.googleusercontent.com/-Rf2ob4Q_fQ0/UtPvvtrrJLI/AAAAAAAAAR0/Vasf4...
regards
mira _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> " please let us know the parameters for mkgmap. " Hi Gerd, here are my mkgmap parameters: --precomp-sea= --bounds= --remove-ovm-work-files --generate-sea=land-tag=natural=background --max-jobs = 2 --add-pois-to-areas --gmapsupp --latin1 --index --location-autofill --verbose regarads mira
Hi Mira, okay, that means you use the default style. Correct? Reg. the shapes: I am working on an improvement in the high-prec-coord branch, but this is work in progress and up to now it only improves a few buildings and the img size if parm --x-merge-shapes is given. Anyhow, we have the low precision in the Garmin format, so don't expect to see the small features in the piers. Reg. the roads: Please check the results in the high-prec-coords branch. The roundabout looks much better. The interupted roads might also look better in the branch. Gerd From: mira.mikes@seznam.cz To: mkgmap-dev@lists.mkgmap.org.uk Date: Mon, 13 Jan 2014 15:57:52 +0100 Subject: Re: [mkgmap-dev] Malformed piers and other issues Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> please let us know the parameters for mkgmap. Hi Gerd, here are my mkgmap parameters: --precomp-sea= --bounds= --remove-ovm-work-files --generate-sea=land-tag=natural=background --max-jobs = 2 --add-pois-to-areas --gmapsupp --latin1 --index --location-autofill --verbose regarads mira _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
---------- Původní zpráva ---------- Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> Datum: 13. 1. 2014 Předmět: Re: [mkgmap-dev] Malformed piers and other issues Hi Gerd, " okay, that means you use the default style. Correct? "" " No I am using my own style. Forgot to mention :( https://github.com/miramikes/garmin_hiking_map " Reg. the shapes: I am working on an improvement in the high-prec-coord branch, but this is work in progress and up to now it only improves a few buildings and the img size if parm --x- merge-shapes is given. Anyhow, we have the low precision in the Garmin format, so don't expect to see the small features in the piers. Reg. the roads: Please check the results in the high-prec-coords branch. The roundabout looks much better. The interupted roads might also look better in the branch. " Ok I will check the branch. Thank you mira
Hi Mira, okay, regarding the interupted roads: make sure that your style really adds the missing parts for the resolution you are looking at. Gerd From: mira.mikes@seznam.cz To: mkgmap-dev@lists.mkgmap.org.uk Date: Mon, 13 Jan 2014 16:33:20 +0100 Subject: Re: [mkgmap-dev] Malformed piers and other issues ---------- Původní zpráva ---------- Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> Datum: 13. 1. 2014 Předmět: Re: [mkgmap-dev] Malformed piers and other issues Hi Gerd, okay, that means you use the default style. Correct? No I am using my own style. Forgot to mention :( https://github.com/miramikes/garmin_hiking_map Reg. the shapes: I am working on an improvement in the high-prec-coord branch, but this is work in progress and up to now it only improves a few buildings and the img size if parm --x-merge-shapes is given. Anyhow, we have the low precision in the Garmin format, so don't expect to see the small features in the piers. Reg. the roads: Please check the results in the high-prec-coords branch. The roundabout looks much better. The interupted roads might also look better in the branch. Ok I will check the branch. Thank you mira _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Od: Jaromír Mikeš <mira.mikes@seznam.cz>" " Reg. the shapes: I am working on an improvement in the high-prec-coord branch, but this is work in progress and up to now it only improves a few buildings and the img size if parm --x- merge-shapes is given. Anyhow, we have the low precision in the Garmin format, so don't expect to see the small features in the piers. Reg. the roads: Please check the results in the high-prec-coords branch. The roundabout looks much better. The interupted roads might also look better in the branch. " Ok I will check the branch. " Hi, I tried with mkgmap-high-prec-coord-r2959 and result is same. No improvement in these my cases at all. mira " "
Hi Mira, I just noticed that you don't use --route The branch optimizes only routable ways and their copies (overlaying lines) Gerd From: mira.mikes@seznam.cz To: mkgmap-dev@lists.mkgmap.org.uk Date: Mon, 13 Jan 2014 17:07:16 +0100 Subject: Re: [mkgmap-dev] Malformed piers and other issues Od: Jaromír Mikeš <mira.mikes@seznam.cz> Reg. the shapes: I am working on an improvement in the high-prec-coord branch, but this is work in progress and up to now it only improves a few buildings and the img size if parm --x-merge-shapes is given. Anyhow, we have the low precision in the Garmin format, so don't expect to see the small features in the piers. Reg. the roads: Please check the results in the high-prec-coords branch. The roundabout looks much better. The interupted roads might also look better in the branch. Ok I will check the branch. Hi, I tried with mkgmap-high-prec-coord-r2959 and result is same. No improvement in these my cases at all. mira _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> " I just noticed that you don't use --route The branch optimizes only routable ways and their copies (overlaying lines) " Hi Gerd Make my maps route-able is planned but I didn't know that have them "non- route-able" can effect other things. mira
Hi Mira, The optimization of roads is the most complex part, that's why I've started with that. Now I am working on shapes. I hope in the end I'll have a few algos which are fast enough to reduce all errors which are caused by rounding to map units, no matter whether lines are routable ways or not. As long as you use resolution 23 for level 0 you have to live with big rounding errors. Gerd From: mira.mikes@seznam.cz To: mkgmap-dev@lists.mkgmap.org.uk Date: Mon, 13 Jan 2014 17:31:47 +0100 Subject: Re: [mkgmap-dev] Malformed piers and other issues Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> I just noticed that you don't use --route The branch optimizes only routable ways and their copies (overlaying lines) Hi Gerd Make my maps route-able is planned but I didn't know that have them "non-route-able" can effect other things. mira _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Od: Gerd Petermann <gpetermann_muenchen@hotmail.com> " " Hi Gerd, " The optimization of roads is the most complex part, that's why I've started with that. Now I am working on shapes. I hope in the end I'll have a few algos which are fast enough to reduce all errors which are caused by rounding to map units, no matter whether lines are routable ways or not. As long as you use resolution 23 for level 0 you have to live with big rounding errors. " I will switch from resolution 23 to 24 to try make improvements and also use --route option. Thank you for your help. mira
Hi Mira, and the other problem is that you use resolution 23 for level 0, so you can't expect any details. Gerd From: mira.mikes@seznam.cz To: mkgmap-dev@lists.mkgmap.org.uk Date: Mon, 13 Jan 2014 17:07:16 +0100 Subject: Re: [mkgmap-dev] Malformed piers and other issues Od: Jaromír Mikeš <mira.mikes@seznam.cz> Reg. the shapes: I am working on an improvement in the high-prec-coord branch, but this is work in progress and up to now it only improves a few buildings and the img size if parm --x-merge-shapes is given. Anyhow, we have the low precision in the Garmin format, so don't expect to see the small features in the piers. Reg. the roads: Please check the results in the high-prec-coords branch. The roundabout looks much better. The interupted roads might also look better in the branch. Ok I will check the branch. Hi, I tried with mkgmap-high-prec-coord-r2959 and result is same. No improvement in these my cases at all. mira _______________________________________________ mkgmap-dev mailing list mkgmap-dev@lists.mkgmap.org.uk http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
Hi Mira,
As you see some piers are missing: ... Also some shapes are malformed
These piers are like 3m wide, it is at the limits of resolution for Garmin maps. There is no easy solution for this problems. You can for example add piers as a polyline, this could show the missing ones. Preserving shape could be improved a bit by preprocessing data, like for example simplification before rounding to Garmin resolution. Mkgmap probably doesn't make this kind of simplification.
Here is one place with a lot of disconected roads These are proposed ways? They aren't routable. I think mkgmap doesn't preserve connection for non-routable polylines, which IMHO is a flow.
Same road are interupted in certain zoom level This could be a problem with very short legs of a road or with non-continous type of the road. Difficult to guess.
-- Best regards, Andrzej
---------- Původní zpráva ---------- Od: Andrzej Popowski <popej@poczta.onet.pl> Datum: 13. 1. 2014 Předmět: Re: [mkgmap-dev] Malformed piers and other issues Hi Andrzej, "These piers are like 3m wide, it is at the limits of resolution for Garmin maps. There is no easy solution for this problems. You can for example add piers as a polyline, this could show the missing ones." I will do this ... good idea ...thanks " > Here is one place with a lot of disconected roads These are proposed ways? They aren't routable. I think mkgmap doesn't preserve connection for non-routable polylines, which IMHO is a flow." My map is no routeable ... this might be problem. " > Same road are interupted in certain zoom level This could be a problem with very short legs of a road or with non-continous type of the road. Difficult to guess." They are all the way same type. mira
participants (3)
-
Andrzej Popowski -
Gerd Petermann -
Jaromír Mikeš