[mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution 23 raster problems

Mon May 3 06:27:48 BST 2021

Actually I think I did some mistake concerning the patch - or the patch is
not working together with the simplify v4 patch. I think I made a mistake
and my changes were just based on having one version with wrong angle fixer
0.05 vs 0.5 and that does create some tiny changes on autorouting. Mind
though I did never use preserve-element-order. I'm just trying again and if
again no change I will remove simplify v4 patch.

On Mon, 3 May 2021 at 12:38, Gerd Petermann <gpetermann_muenchen at hotmail.com>
wrote:

> Hi Felix,
>
> if you see random results with routing please check if you use
> --preserve-element-order. For tests like this I really recommend it.
> OTOH it would be very interesting to find out that the order of data has
> an influence on routing in a way that a better or worse route is
> calculated. So far I never found a hint for that.
>
> Gerd
>
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> Gerd Petermann <gpetermann_muenchen at hotmail.com>
> Gesendet: Sonntag, 2. Mai 2021 19:15
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> Hi Felix,
>
> the more-merge.patch  should have no effect on routing. In my tests NET
> and NOD data was identical. Did you really compare it with an unpatched
> version? If there are differences in routing my understanding of the data
> structures is wrong.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk> im Auftrag von
> Felix Hartmann <extremecarver at gmail.com>
> Gesendet: Sonntag, 2. Mai 2021 17:50
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> yes I tried it out now without additional DP changes. Routing was
> identical in 18 out of 20 routes. Twice a tiny difference, hard to say if
> worse or better. Pretty similar. As for if the visual quality was improved,
> The jaggedness is a bit better - but still quite a lot of unneeded zig
> zags. Higher DP values of course improve it.
>
> On Sun, 2 May 2021 at 21:16, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>
> wrote:
> Hi Felix,
>
> please try first just my patch, not any further modifications from your
> side.
> You can use  unpatched DouglasPeuckerFilter from trunk.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>
> Gesendet: Sonntag, 2. Mai 2021 15:09
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> Going to test out the patch a bit more right now. Only problem for me is -
> I cannot set custom dp filter anymore.. But I guess you will implement that
> anyhow soon?
>
> compile:
>     [javac] Compiling 1 source file to C:\garmin\mkgmap_trunk\build\classes
>     [javac]
> C:\garmin\mkgmap_trunk\src\uk\me\parabola\mkgmap\filters\DouglasPeuckerFilter.java:64:
> error: cannot find symbol
>     [javac]                     this.maxErrorDistance = filterDistance *
> 1.3 * (1<< config.getShift()); }
>     [javac]
>          ^
>     [javac]   symbol:   variable config
>     [javac]   location: class DouglasPeuckerFilter
>     [javac]
> C:\garmin\mkgmap_trunk\src\uk\me\parabola\mkgmap\filters\DouglasPeuckerFilter.java:66:
> error: cannot find symbol
>     [javac]                     this.maxErrorDistance = filterDistance * 2
> * (1<< config.getShift()); }
>     [javac]
> ............
>
> I will try out at least 20 routes back to back on longer distances to see
> if something changes to the worse or better with the patch.
>
> On Sun, 2 May 2021 at 17:54, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>> wrote:
> Hi Felix,
>
> attached patch allows to merge roads at levels > 0. This reduced file file
> and zig-zagging. I didn't see routing problems but didn't test this much.
>
> The patch contains also experimtal code for DouglasPeuckerFilter which is
> not yet enabled. It reduces a bit more but is not yet tested.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>
> Gesendet: Samstag, 1. Mai 2021 18:06
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> well I increased it to 0.5, and could not see any place which was actually
> different. I noticed in some places the labels were at different positions,
> so it indeed changed something. Also file size decreased a little bit. I
> tried about 15 routes with autorouting, and one actually routed a little
> bit different. It was more or less identical however. So not sure if this
> makes sense or not. It can save maybe 0.5% of filesize.
>
> On Sat, 1 May 2021 at 14:02, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>>>
> wrote:
> Hi Felix,
>
> the WrongAngleFixer takes care about filtering at resolution 24. It calls
> the DouglasPeucker filter with maxErrorDistance = 0.05.
> See https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4172
>
> Maybe try to play with the value 0.05.
> WrongAngleFixer tries to produce a result that is closer to the OSM data
> than simple rounding to Garmin raster and removes points which
> don't improve the rendered image if they are not needed for routing.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>
> Gesendet: Freitag, 30. April 2021 16:42
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> Are you sure it would be needing that much more memory? If there is a big
> penalty this simplification could only be done for lower resolutions, which
> contain much less data. Even if its only 13-20 that would be a huge
> improvement. 21 could need some love too but not as important, while 22 is
> usually still quite performant on GPS devices. 13-16 or 17 is usually
> basemap only anyhow. Maybe we could create static basemaps in the same way
> that we have the sea and boundary files? Yes if a new highway is built at
> some point it should show up in the overview map - but as this one is
> really only for orientation, I really feel it's okay to be updated only
> twice per year or so.
>
> Garmins maps in this aspect are clearly superior.
>
> On Fri, 30 Apr 2021 at 21:50, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>>> wrote:
> Hi all,
>
> attached is my proposed change based on the simplify3.patch by Andrzej and
> the idea to use that only for contour lines.
>
> I see no simple way to implement major improvements for the rendering of
> lower resolutions. Basically we need the WrongAngleFixer to work with a
> given resolution.
> So, something like a loop over each level  (starting with the highest)
> +  collect the elements that should be rendered at this level
> + use method like WrongAngleFixer for the corresponding resolution so that
> distortions caused by rounding are reduced
> + add code to detect parallel lines which should be deduplicated
> + store the objects, each only valid for this one level
>
> Finally do the sub division splitting, the merging of lines and shapes in
> each sub div and the binary encoding of the map.
> If possible, the merging and the Douglas-Peucker-Filter (or whatever)
> should be done before splitting into sub divs. I assume Garmins program is
> doing it that way because the data structures suggest that they fist
> calculate all the elements of all levels before it starts the splitting
> into sub divs.
>
> I guess this would produce nicer looking maps at lower resolutions. It
> would also require more heap memory (100% would be my guess) and more
> compilation time unless we find clever tricks to avoid that.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>> im Auftrag von Felix Hartmann
> <extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at g
>  mail.com<mailto:extremecarver at gmail.com>>><mailto:extremecarver at gmail.com
> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>>>
> Gesendet: Donnerstag, 29. April 2021 14:39
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> here is what I mean - zig zagging like crazy if you look at it with lowest
> detail which is really helpful to see this problem. Those highways should
> be just straight. Oh yes - because the highways are two separate lanes they
> never have holes. Those holes with the patch are best visible on highway
> primary and secondary. Actually for highways maybe mkgmap could even
> include an algo to fix the double highway and just put it once into the map
> if it overlaps. So step a) remove zig zagging. Step two - remove any double
> highway if within 3-4 garmin units away from each other as long as we do
> not create a hole by this (at intersections). Every style has minimum width
> for highways of at least 3-4 units, if not 6-7, so drawing two highways on
> top of each other is waste of resources.  Actually this applies to all
> roads but will be mainly important for highways as they are nearly always
> entered into OSM with both directions as a separate line.
>
> On Thu, 29 Apr 2021 at 20:30, Felix Hartmann <extremecarver at gmail.com
> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mai
>  lto:extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>>> wrote:
> Yes - I also support Gerd that it doesn't work well for polygons.
> Now for lines it's another story.
> a) I love that lines are a bit straighter and looking better vs increasing
> douglas peucker.
> b) Sadly though there are bits and pieces of roads missing. If that is
> fixed I would be all supportive to use this for all lines. But not before
> those missing bits reappear.
> How to check for it - just use lowest detail level in Basecamp.
>
> Oh yeah and mkgmap without that patch also has a zig zagging problem.
> Maybe we would need a separate algorithm to check for zig zagging and make
> sure this does not happen. I really think we could need an algorithm that
> just checks for zig zagging from resolution 22 and lower and base it on the
> principle that 90% of all those zig zags are unwanted therefore just
> straighten lines if there is a zig zag.
> So nothing to do with this patch - but a general really needed improvement
> for mkgmap. (mkgmap is lacking a bit vs Garmin owns map at lower
> resolutions. At resolution 24 mkgmap produces fantastic maps, but garmins
> own maps are definitely better at lower resolutions regarding problems like
> zig zagging or reducing detail). Avoiding those zig zags would make the
> maps pan and load much faster on devices. I use a high DP value of 5.4
> because zoomed out further I feel this is needed. But the zig zagging
> occurs anyhow, or because of it?
>
> I really feel some little tweaks here could be a huge improvement for
> practical use on devices. We do not need exactness when zoomed out far -
> but we need the map to look nice. If a line is 1 or 2 points away from
> reality doesn't matter from resolution 17-21 and matters not too much for
> resolution 22. Only 23 and 24 should be more or less exact. (maybe for
> driving on highways with a car this is different - but is anyone actually
> using mkgmap created maps for this? I think nearly everyone uses google
> maps or smartphone. Garmin maps are mainly for outdoors or city maybe. But
> not for automobile use. Some people but not many motorcycle maybe. So the
> main importance for lower resolution is nice visual display and fast, not
> if a road misses some tiny turn or is 100m left or right. And with a car we
> have lock on road exactly for that. So visually it will be on the road
> anyhow even if the road is moved 1 or 2 garmin units to one side.
>
> On Wed, 28 Apr 2021 at 22:59, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>>><m
>  ailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>>>> wrote:
> Hi all,
>
> my observations at resolution 22:
> I think the patch re-introduces rendering problems at T-shaped crossings,
> sometimes they look like t-shapes at lower resolutions.
> Sample: https://www.openstreetmap.org/node/260418111
>
> It seems to filter more small polygons, even with  --min-size-polygon=0.
> I think it tends to make polygons smaller, not sure why.
>
> It sometimes reduces wrong zig-zagging, but only for ways with many
> points. In cities, where roads are often split into many small parts it
> sometimes makes things worse.
>
> It probably helps for the special case contour lines and therefore I
> suggest to limit it to them.
>
> Maybe the code to find the best place for a rounded coord should also
> consider to remove the point if that would give the best result.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mail
>  to:mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>>> im Auftrag von Gerd
> Petermann <gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:gpeterm<mailto:gpeterm>
>  ann_muenchen at hotmail.com<mailto:ann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >>>>>>
> Gesendet: Mittwoch, 28. April 2021 15:21
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> Hi Felix,
>
> I expect (more) small missing parts of complex shapes like forests or
> waterway areas (those without mkgmap:skipSizeFilter=true) and more obvious
> differences between shapes and lines, e.g. if a style renders outlines of
> buildings.
>
> The maps are very different at res 22, so it is hard to say if there are
> more  improvements then worsenings.
>
> I've experimented with different orders of filters in the past. It's
> difficult to test because the changes heavily depend on the Styte AND the
> mapped objects AND the mappers preferences. For example, if landuse areas
> are glued to highways or not, if landuse areas are glued to other landuse
> areas or if there nodes are just very close.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mail
>  to:mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>>> im Auftrag von Felix
> Hartmann <extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at g<mailto:extremecarver at g>
>  mail.com<http://mail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>>>>
> Gesendet: Mittwoch, 28. April 2021 14:58
> An: Development list for mkgmap
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> Oh I thought it was mainly meant for contourlines. Did not know you intend
> it to be used in general. I am not really sure how and where to check for
> quality.
>
> On Wed, 28 Apr 2021 at 20:13, Gerd Petermann <
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>>><m
>  ailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >>><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>>>><m
>  ailto:gpetermann_muenchen at hotmail.com<mailto:
> ailto%3Agpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> >><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com>>><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com
> ><mailto:gpetermann_muenchen at hotmail.com<mailto:
> gpetermann_muenchen at hotmail.com>><mailto:gpetermann_muenchen at hotmail.com
> <mailto:gpetermann_muenchen at hotmail.com><mailto:
> gpetermann_muenchen at hotmail.com<mailto:gpetermann_muenchen at hotmail.com>>>>>>>
> wrote:
> Hi Felix,
>
> your screen shots only show contour lines but the patch works on all types
> of lines and polygons. So, please also check the results with other maps.
>
> Gerd
>
> ________________________________________
> Von: mkgmap-dev <mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mail
>  to:mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mail
>  to:mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> to%3Amkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk><mailto:
> mkgmap-dev-bounces at lists.mkgmap.org.uk<mailto:mkgma
>  p-dev-bounces at lists.mkgmap.org.uk>>>>>>> im Auftrag von Felix Hartmann <
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:extre
> <mailto:extre>
>  mecarver at gmail.com<mailto:mecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gma
>  il.com>><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com
> ><mailto:extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>>>>
> Gesendet: Mittwoch, 28. April 2021 04:54
> An: Development list for mkgmap; Andrzej Popowski
> Betreff: Re: [mkgmap-dev] mkgmap-dev Digest, Vol 153, Issue 40 Resolution
> 23 raster problems
>
> forgot 1.3 value - that is good enough (and this location is not the most
> difficult, but there are very few places that are worse. So I feel it's
> good enough as if it's fine here - there are very very few other places
> that are still problematic.
>
>
> On Wed, 28 Apr 2021 at 10:50, Felix Hartmann <extremecarver at gmail.com
> <mailto:extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mai
>  lto:extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mai
>  lto:extremecarver at gmail.com<mailto:lto%3Aextremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mai
>  lto:extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com>>><mailto:extremecarver at gmail.com<mailto:
> extremecarver at gmail.com><mailto:e
>  x<mailto:ex>
>  tremecarver at gmail.com<mailto:tremecarver at gmail.com>><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com><mailto:
> extremecarver at gmail.com<mailto:extremecarver at gmail.com>>>>>>>> wrote:
> Thanks for that patch, the improvement is not as big as from the previous
> patch - but there is some.
> I analysed it a bit more - and I think there needs to be one more change -
> actually in general and not only for contourlines.
>
> We need different values for the douglas peucker algorithm depending on
> resolution!
>
> Right now we can only set one value, and that is multiplied for each
> resolution?
> Based on the current state I would like to have
>
> resolution
> 24= 0.0 or maybe actually have it active at 24 as well trying a value of
> 0.3 or so. Where there any problems with autorouting or why is it not
> possible to use it at resolution 24 as well?
> 23=1.3
> 22=2.6
> 21=3.9
> 20-11=5.4
>
>
> Especially if we produce a map without resolution 24, then resolution 23
> needs to have much lower DP value than the subsequent resolutions. Using
> 1.3 for resolution 23 makes the quality IMHO good enough to be used for an
> contourlines only map for GPS devices and skipping resolution 24
> altogether. For Desktop use resolution 24 may still make sense for
> contourlines - but even then the difference is only in very steep areas.
>
> Attached some screenshots at resolution 24, and at 23 with different DP
> values and one of patch2.
>
> On Tue, 27 Apr 2021 at 23:16, Andrzej Popowski <popej at poczta.onet.pl
> <mailto:popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>>>><mailto:popej at poczta.onet.pl<ma
>  ilto:popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl>>>>>><mailto:popej at poczta.onet.pl<mailto:
> popej at poczta.onet.pl><ma
>  ilto:popej at poczta.onet.pl<mailto:ilto%3Apopej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
>  popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl><mailto:
> popej at poczta.onet.pl<mailto:popej at poczta.onet.pl>>>>>>>> wrote:
> Hi,
>
> some more experiments, see attached patch. I have tried to optimize
> rounding of coordinates for lowest distance to line. This is not good
> for polygons, because can creates gaps between adjacent polygons.
>
> --
> Best regards,
> Andrzej
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
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> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
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> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.or
>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.or<mailto:mkgmap-dev at lis
>  ts.mkgmap.or>
>  g.uk<http://g.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
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> >>>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mail
>  to:mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>>>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev<mailto:m
>  kgmap-dev>
>  @lists.mkgmap.org.uk<http://lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >>>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>>>>>>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
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> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
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> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
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>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.or<mailto:mkgmap-dev at lis
>  ts.mkgmap.or>
>  g.uk<http://g.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>>>>>>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
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> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.or
>  g.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>>>>>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
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> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> >>><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk>><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>>>>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>><mailto:mkgmap-dev at lists.mkgmap.org.uk
> <mailto:mkgmap-dev at lists.mkgmap.org.uk><mailto:
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>>>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk
> ><mailto:mkgmap-dev at lists.mkgmap.org.uk<mailto:
> mkgmap-dev at lists.mkgmap.org.uk>>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk<mailto:mkgmap-dev at lists.mkgmap.org.uk>
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>
>
> --
> Felix Hartman - Openmtbmap.org & VeloMap.org
>
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
> _______________________________________________
> mkgmap-dev mailing list
> mkgmap-dev at lists.mkgmap.org.uk
> https://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
>

-- 
Felix Hartman - Openmtbmap.org & VeloMap.org
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