Hmm, regarding the tagging of the St. Lawrence: the Great Lakes should
still be tagged as natural=coastline, otherwise they'll disappear at
zoomlevel 5 and upwards. The St. Lawrence itself is barely visible, so
that shouldn't be a problem. However, the tagging of big lakes in
general is another topic, which has been discussed before.
Frank
On 11-11-11 10:31 PM, Frank Steggink wrote:
Hi Daniel,
I just had contact with him yesterday after I noticed the incorrect
rendering. He responded quickly. I asked him whether he was aware of
the problems, and if he could use some help. He has seen the flooding
and reverted some of the changes yesterday, notably the broken
coastline northeast of Ile d'Orleans. He wanted to tag the coastline
of the. St. Lawrence as a riverbank, so it would show up properly (as
a blue area). This is a known issue with mkgmap. He will leave the
riverbank tag upstream of Ile d'Orleans, but has reverted the other
errors. Most notably the multipolygon for the St. Lawrence he made has
been removed again. In this multipolygon Ile d'Orleans was tagged as
natural=land, which caused it to be rendered white (because
"natural=land" is one of the topmost styles). I've quickly checked his
changes, and the coastline seems to appear all right. I still need to
do a bigger check.
So, currently the St. Lawrence is tagged both as natural=coastline and
waterway=riverbank between Quebec City and (at least) the St. PIerre
lake. Would that be a problem? For the rendering it should work nice,
but having duplicate / complimentary tagging should be avoided. I'd
like to propose to use the natural=coastline from downstream Quebec,
and use waterway=riverbank upstream. Right now Alain has drawn this
boundary just east of Quebec City. I'd rather move it towards
approximately the ferry connection with Levis, since upstream the
flood/ebb cycle is much less strong.
Here is Alain's full answer:
J'ai vu ce matin après quelques jours n'inactivité, que la rive nord
du fleuve, de la pointe de l'île d'Orléans à la ville de Baie-St-Paul
ne se dessinait pas correctement sur OpenStreetMap.
Je crois maintenant avoir enlever toutes les modifications à l'est de
la ville de Québec, y compris l'île d'Orléans et les deux rives du
fleuve.
Cependant cela ne corrige pas l'erreur. Peut-être, comme tu l'indiques
dans le deuxième courriel, est-ce à cause de la mise-à-jour qui ne se
fait qu'à tout les mercredi.
Mon but était de tagger waterway=riverbank jusqu'à l'est de l'île
d'Orléans, endroit ou la marée est supposée se manifestée (?). Le
reste de l'estuaire du fleuve peut demeurer avec natural=coastline
c'est vrai qu'il est très large. Cependant, à ma connaissance, lorsque
les rives du fleuve sont marquées comme natural=coastline, le fleuve
se dessine comme natural=land sur les gps-garmin lorsque passé à
travers le logiciel 'mkgmap'.
J'ai essayé de modifié les fichiers de Style, les fichiers '.TYP',
mais sans résulats. Mais en marquant les rives du fleuve avec
waterway=riverbank, et en inscrivant les rives dans un multi-polygone,
comme indiqué dans la documentation, ils ressortent correctement sur
les Gps Garmin et le logiciel QLandKarteGt.
Je pensais bien avoir pratiquement terminé mes modifications, mais
cette erreur me complique la vie. Je ne parviens pas à la cerner.
Ton aide serait la bienvenue !
Regards,
Frank
On 11-11-11 09:47 PM, Daniel Begin wrote:
Hi all,
A month ago I found a lot of "messy" multipolygons having
natural=coastline and/or waterway=riverbank mixed all together in
Montreal area, resulting in bad rendering ...
http://www.openstreetmap.org/?lat=45.295&lon=-73.005&zoom=9&layers=M
All came from user - http://www.openstreetmap.org/user/Alain512. I
contacted him in mid-October but haven't received any answer yet.
Since, other users and I have tried to correct the problems.
He is now working around l'Île d'Orleans near Québec city and I have
found the same kind of problem...
http://www.openstreetmap.org/?lat=46.977&lon=-70.9076&zoom=12&layers=M
Is someone else could try to contact him to make sure he understands
what is doing before continuing...
Regards,
Daniel
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