Major display bug - Roads near bodies of water

[John Goodin]

I see one major bug in the program then it comes to displaying streets near major rivers. If you zoom in too close suddenly roads jump into the middle of the water body.

An good example is

Lat 32.55889, Lon -85.04018 at zoom level 14. Once you go to 15 the river splits in two and roads move into the middle of the river.

[Patrick Dailey]

That's not a bug with Osmand, it's incorrect data in openstreetmap.org. You are the best person to fix it since you are local to the area. In this specific instance, Lake Oliver's edge had been cut into sections that caused it to be interpreted as several bodies of water sort of inside out of what the lake actually is. I merged the ways, so it should display much better once the Osmand maps are updated, but you could really help out by verifying openstreetmap.org in your local area.

[Patrick Dailey]

try enabling online map data, and see if that's more like what you were expecting to see.

On Wednesday, June 12, 2013 12:10:21 PM UTC-4, John Goodin wrote:

[John Goodin]

I visited OpenStreetMaps in my browser and OSMAND near several major river including the Tennessee, Mississippi,  and Chattahoochee. The error only occurs in OSMAND and nowhere else reading OSM data.

[Harry van der Wolf]

Hi,

2013/6/15 John Goodin <johnway...@gmail.com>

I visited OpenStreetMaps in my browser and OSMAND near several major river including the Tennessee, Mississippi,  and Chattahoochee. The error only occurs in OSMAND and nowhere else reading OSM data.

The error is NOT in OsmAnd and NEITHER in OSM, but in the data used to create maps from OSM map data. This data is again from a third party being geofabrik.de
That's why you don't see it in openstreetmap.org and you do see it in OsmAnd.

polygons, or in short, polys are used to create maps from regions (continent, country, state, county, ....)

See attached screenshot out of JOSM from part of the Alabama poly of the region you are mentioning. The purple dashed line is the border. The dark-grey line with the yellow cross and square is a very small part of the poly used to generate the Alabama map. The outside of the poly is water. Therefore, the part of the country containing the road that should be inside the poly (but isn't), is also water.
OsmAnd is only using the polys that are available.

I just corrected the Alabama.poly and sent it to the geofabrik.de guys so they can add it to their set (after verification). In 2-5 weeks the corrected map will automatically be available in OsmAnd.

If you can create OsmAnd map screenshots or give exact locations (high zoom level) of the other incorrect spots you saw, I can try to correct them as well.

Harry