org.ka2ddo.yaac.osm

Class OsmObstructionFinder

java.lang.Object

org.ka2ddo.yaac.osm.OsmObstructionFinder

public class OsmObstructionFinder
extends java.lang.Object

This class provides a means of looking up potential above-ground obstructions (obtained from OpenStreetMap data) in a specified area.

Author:

Andrew Pavlin, KA2DDO

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OsmObstructionFinder.AmenityAttr Structure containing parameters for interpreting OSM Node objects that could be RF obstructions.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.Map<AmenityType,OsmObstructionFinder.AmenityAttr>	OBSTRUCTING_AMENITIES

Constructor Summary

Constructors

Constructor and Description
OsmObstructionFinder()

Method Summary

Modifier and Type	Method and Description
static void	flush() Clear all the cached OSM data in the OsmObstructionFinder.
static java.util.List<GenericTaggedNode<?>>	getObstructions(int minLat, int minLon, int maxLat, int maxLon) Get a list of all OpenStreetMap features that could obstruct a line-of-sight.
static RTreeNode	getTile(double latitude, double longitude) Get an OSM object tree for the 1-degree by 1-degree region of the planet requested.
static RTreeNode	getTile(int latitude, int longitude) Get a SRTMTile object for the 1-degree by 1-degree region of the planet requested.

Methods inherited from class java.lang.Object

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

Field Detail

OBSTRUCTING_AMENITIES

public static final java.util.Map<AmenityType,OsmObstructionFinder.AmenityAttr> OBSTRUCTING_AMENITIES

Constructor Detail

OsmObstructionFinder

public OsmObstructionFinder()

Method Detail

getObstructions

public static java.util.List<GenericTaggedNode<?>> getObstructions(int minLat,
                                                                   int minLon,
                                                                   int maxLat,
                                                                   int maxLon)

Get a list of all OpenStreetMap features that could obstruct a line-of-sight.

Parameters:

minLat - southwest latitude (in millionths of degrees) of bounding box to search

minLon - southwest longitude (in millionths of degrees) of bounding box to search

maxLat - northeast latitude (in millionths of degrees) of bounding box to search

maxLon - northeast longitude (in millionths of degrees) of bounding box to search

Returns:

List of any OSM features extending above ground in the specified bounding box

getTile

public static RTreeNode getTile(int latitude,
                                int longitude)

Get a SRTMTile object for the 1-degree by 1-degree region of the planet requested.

Parameters:

latitude - int latitude in millionths of degrees North

longitude - int longitude in millionths of degrees East

Returns:

SRTMTile object containing elevation data for the specified latitude/longitude

getTile

public static RTreeNode getTile(double latitude,
                                double longitude)

Get an OSM object tree for the 1-degree by 1-degree region of the planet requested.

Parameters:

latitude - double latitude in fractional degrees North

longitude - double longitude in fractional degrees East

Returns:

RTreeNode object containing elevation data for the specified latitude/longitude

flush

public static void flush()

Clear all the cached OSM data in the OsmObstructionFinder.