Yakoobb commented 8 months ago

Description

When viewing the shores of Ain El Benian region in Algiers, a triangle-shaped virtual island appears in the map display. However, upon zooming in, the island disappears.

Steps to reproduce

Open OsmAnd app.
Navigate to the shores of Ain El Benian region, Algiers.
Observe the map display, where the triangle-shaped virtual island appears.
Zoom in on the area.

Actual result

A triangle-shaped virtual island appears near the shores of Ain El Benian region, Algiers, but disappears upon zooming in.

Expected result

The map should display accurate geographical features without any virtual anomalies, regardless of the zoom level.

Your Environment (required)

Operating System: [Android 12, 13] Osmand App Version: [Osmand / Osmand+ 4.6.13] Device Model: [Samsung Galaxy F13, Redmi Note 10 Pro] Connection Type: [Wi-Fi, Mobile Data]

yuriiurshuliak commented 8 months ago

The bug has been reproduced. Try to find these coordinates 36.80679047083185, 2.939194837275019 using Version 2 rendering. Also note that on Version 1 of the render, this point is displayed correctly.

OsmAnd~ 4.7.0#1748m, released: 2024-03-05

xmd5a2 commented 7 months ago

This is a bug in OpenGL. http://www.openstreetmap.org/#map=17/36.809418/2.941566 Zoom 17: Basemap coastline is ok:

Andrewschenko commented 7 months ago

The problem is that in this case the data cannot be read from large tiles - only from the base map, which is too rough at this point and shows it as land, not as sea. Looks like it's easier to be fixed in the basemap.

dmpr0 commented 7 months ago

Review

Screenshot

14	13

[ ] Visible on Minibasemap