Supplement :
I have looked in original Garmin CityNavigator NT 2018 and Topo Espania: in both maps the layers are rendered wrong. Always the 0x1 is toplevel
thomas

--------------------------------------------------
Von: "Gerd Petermann" <[email protected]>
Datum: Sonntag, 25. Februar 2018 19:03
An: "Thomas Morgenstern" <[email protected]>; "Development list for mkgmap" <[email protected]>
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1

Hi Thomas,

what I wanted to suggest is to use --preserve-element-order and change the order of the two ways in the osm file. Without --preserve-element-order the order is not predictable, but might be the same as with
the option.

Gerd

________________________________________
Von: mkgmap-dev <[email protected]> im Auftrag von Thomas Morgenstern <[email protected]>
Gesendet: Sonntag, 25. Februar 2018 19:48:50
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1

Hi Gerd, i have tested now --preserve-element-order . You are right. This
does not help. The result is similar to without --preserve-element-order.
thomas

--------------------------------------------------
Von: "Gerd Petermann" <[email protected]>
Datum: Sonntag, 25. Februar 2018 18:17
An: "Thomas Morgenstern" <[email protected]>; "Development list for
mkgmap" <[email protected]>
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1

Hi Thomas,

my understanding is that this was already tried in the past, without
success.
You can test it with a test osm file containing only two ways. When you
use
--preserve-element-order mkgmap should write them in the order of
the OSM file. It is better to use a small file for those tests so that all
data
fits into one sub division.

It might well be possible that Garmin software has a hard coded draw order
for
specific line types. As Arndt already mentioned this is the case for
0x01..0x03.

Gerd

________________________________________
Von: mkgmap-dev <[email protected]> im Auftrag von
Thomas Morgenstern <[email protected]>
Gesendet: Sonntag, 25. Februar 2018 18:10:24
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1

Some time ago we have introduced the teature 'order-by-decreasing-area'.
Maybee a similar arangement helps. Order all lines ,(related to streets)
in range of layer . Highest layer at last ?
thomas

--------------------------------------------------
Von: "Gerd Petermann" <[email protected]>
Datum: Sonntag, 25. Februar 2018 16:50
An: "Thomas Morgenstern" <[email protected]>; "Development list for
mkgmap" <[email protected]>
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1

Hi Arndt,

many OSM applications evaluate tags like bridge and layer.
The default style doesn't even evaluate bridge or layer, since we don't
know a way to tell Garmin software a draw order
of lines. This is just a special problem with the (old) Garmin img
format.
Maybe there is a way to change the draw order, if you have an idea,
please
let us know.

Gerd

________________________________________
Von: mkgmap-dev <[email protected]> im Auftrag von
Thomas Morgenstern <[email protected]>
Gesendet: Sonntag, 25. Februar 2018 17:25:08
An: Development list for mkgmap
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1

I am wondering, why we write tag=bridge and tag layer=anywhat, when
mkgamp
does ignore bridge=yes and layer=1. All the work, to tset this tag is
seenless.?
thomas

Von: Arndt Röhrig<mailto:[email protected]>
Datum: Sonntag, 25. Februar 2018 14:52
An: Development list for mkgmap<mailto:[email protected]>
Betreff: Re: [mkgmap-dev] Wrong rendering Layer=1


Hi,

imho there is no draw prio possible with lines. Solid has no effect. Only
typ 0x01, 0x02, 0x03 and perhaps 0x04 will be draw always over the other
lines. I used it for one-way-arrows.

Arndt

"osm@pinns<mailto:osm@pinns>" <[email protected]<mailto:[email protected]>>
hat am 25. Februar 2018 um 15:21 geschrieben:


Hi

Layering of lines does not seem to be supported by Garmin - I have seen
many Topos where bridges are completely ignored.

Using a TYP file you can often force lines to have a draworder by making
them solid - solid has often a higher draworder than lines with bitmaps.

I'm not sure whether placing a line  at  the end of a 'lines' block in
the
RGN would ensure it will be parsed last.

Nick

On 25/02/2018 13:15, Thomas Morgenstern wrote:


Hi , maybee I found a bug in rendering layer's. I have prepared a small
SanIsidro.osm.pbf  and the resulting gmap with FID 982, created with
mkgmap-r4127, Download :
http:\\img2ms.de/Downloads\WrongLayerSanIsidro.rar .
The error is, that the highway ID=217.806.076 is rendered over the bridge
ID=65.208.316. Bridge has tag bridge=yes and originaly layer=1. I tried
layer=2, but it makes  no different, it should bee rendered  over the
highway,  This wrong rendering happens in may cases related to TF-1 in
tenerife.
[cid:793096B291174F75AFA2407BB062C915@dell]

any idees to resolve this in stylefile ?
thomas


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