Package org.oscim.tiling.source.mapfile

Class OSMUtils

java.lang.Object

org.oscim.tiling.source.mapfile.OSMUtils

public final class OSMUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static boolean	isArea(MapElement mapElement)	Heuristic to determine from attributes if a map element is likely to be an area.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

isArea

public static boolean isArea(MapElement mapElement)

Heuristic to determine from attributes if a map element is likely to be an area. Precondition for this call is that the first and last node of a map element are the same, so that this method should only return false if it is known that the feature should not be an area even if the geometry is a polygon.

Determining what is an area is neigh impossible in OSM, this method inspects tag elements to give a likely answer. See http://wiki.openstreetmap.org/wiki/The_Future_of_Areas and http://wiki.openstreetmap.org/wiki/Way

The order in which the if-clauses are checked is determined with the help from https://taginfo.openstreetmap.org

Parameters:

mapElement - the map element (which is assumed to be closed and have enough nodes to be an area)

Returns:

true if tags indicate this is an area, otherwise false.