org.mapsforge.map.writer.util

Class OSMUtils

java.lang.Object

org.mapsforge.map.writer.util.OSMUtils

public final class OSMUtils
extends java.lang.Object

OpenStreetMap related utility methods.

Method Summary

Modifier and Type	Method and Description
static java.util.Map<java.lang.Short,java.lang.Object>	extractKnownPOITags(org.openstreetmap.osmosis.core.domain.v0_6.Entity entity) Extracts known POI tags and returns their ids.
static java.util.Map<java.lang.Short,java.lang.Object>	extractKnownWayTags(org.openstreetmap.osmosis.core.domain.v0_6.Entity entity) Extracts known way tags and returns their ids.
static SpecialTagExtractionResult	extractSpecialFields(org.openstreetmap.osmosis.core.domain.v0_6.Entity entity, java.util.List<java.lang.String> preferredLanguages) Extracts special fields and returns their values as an array of strings.
static java.lang.Byte	getByteValue(java.lang.String value)
static java.lang.Float	getFloatValue(java.lang.String value)
static java.lang.Integer	getIntegerValue(java.lang.String value)
static java.lang.Object	getObjectFromWildcardAndValue(java.lang.String wildcard, java.lang.String value)
static java.lang.Short	getShortValue(java.lang.String value)
static java.lang.String	getStringValue(java.lang.String value)
static java.lang.String	getValueType(java.lang.String key, java.lang.String value)
static boolean	isArea(org.openstreetmap.osmosis.core.domain.v0_6.Way way) Heuristic to determine from attributes if a way is likely to be an area.
static java.lang.String	logValueTypeCount()
static java.lang.Double	parseDoubleUnit(java.lang.String value)

Methods inherited from class java.lang.Object

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

Method Detail

extractKnownPOITags

public static java.util.Map<java.lang.Short,java.lang.Object> extractKnownPOITags(org.openstreetmap.osmosis.core.domain.v0_6.Entity entity)

Extracts known POI tags and returns their ids.

Parameters:

entity - the node

Returns:

the ids of the identified tags

extractKnownWayTags

public static java.util.Map<java.lang.Short,java.lang.Object> extractKnownWayTags(org.openstreetmap.osmosis.core.domain.v0_6.Entity entity)

Extracts known way tags and returns their ids.

Parameters:

entity - the way

Returns:

the ids of the identified tags

extractSpecialFields

public static SpecialTagExtractionResult extractSpecialFields(org.openstreetmap.osmosis.core.domain.v0_6.Entity entity,
                                                              java.util.List<java.lang.String> preferredLanguages)

Extracts special fields and returns their values as an array of strings.

Use '\r' delimiter among names and '\b' delimiter between each language and name.

Parameters:

entity - the entity

preferredLanguages - the preferred language(s)

Returns:

a string array, [0] = name, [1] = ref, [2} = housenumber, [3] layer, [4] elevation, [5] relationType

getByteValue

public static java.lang.Byte getByteValue(java.lang.String value)

Parameters:

value - string represented numerical value

Returns:

value as Byte

getFloatValue

public static java.lang.Float getFloatValue(java.lang.String value)

Parameters:

value - string represented numerical value

Returns:

value as Float

getIntegerValue

public static java.lang.Integer getIntegerValue(java.lang.String value)

Parameters:

value - numerical or color-representing value as string

Returns:

corresponding Integer

getObjectFromWildcardAndValue

public static java.lang.Object getObjectFromWildcardAndValue(java.lang.String wildcard,
                                                             java.lang.String value)

Parameters:

wildcard - the type of value as wildcard

value - the value as string

Returns:

an object that represents value

getShortValue

public static java.lang.Short getShortValue(java.lang.String value)

Parameters:

value - string represented numerical value

Returns:

value as Short

getStringValue

public static java.lang.String getStringValue(java.lang.String value)

Parameters:

value - string

Returns:

formatted value

getValueType

public static java.lang.String getValueType(java.lang.String key,
                                            java.lang.String value)

Parameters:

value - string represented value

Returns:

a string represented primitive type

isArea

public static boolean isArea(org.openstreetmap.osmosis.core.domain.v0_6.Way way)

Heuristic to determine from attributes if a way is likely to be an area. Precondition for this call is that the first and last node of a way 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

Parameters:

way - the way (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.

logValueTypeCount

public static java.lang.String logValueTypeCount()

parseDoubleUnit

public static java.lang.Double parseDoubleUnit(java.lang.String value)

Parameters:

value - value as string

Returns:

parsed number if numerical, else null