Feature tile assignment

In many instances, map feature geometries can span across multiple tiles based on the feature. For example, these map feature geometries may be long linear features, such as rivers or railroads, or large polygons, such as natural parks or municipality boundaries.

When features span across multiple tiles, the feature is only included in one of the many tiles its geometry traverses. The tile that the feature is associated with is the tile where its southern/western most shape point is located.

In the following example figures, two linear features span across multiple tiles, with one having its southernmost point in the bottom right tile (figure on the left), and the other having its southernmost point, which is further west, on the bottom left tile. These features are included in the corresponding reference tile, which is tile 24319677 and tile 24319676 respectively.

In the following example figures, two polygonal features span across multiple tiles, one having its southernmost point in the top left tile (figure on the left), and the other having its southernmost point in the bottom left tile. These features are included in the corresponding reference tile, which is tile 24319678 and tile 24319676 respectively.

In the following real-world example, the highlighted polygon is associated with tile 24319671, as the polygon geometry has its southernmost shape point in that tile.