Package org.apache.jena.geosparql.implementation

Class UnitsOfMeasure

java.lang.Object

org.apache.jena.geosparql.implementation.UnitsOfMeasure

All Implemented Interfaces:

Serializable

public class UnitsOfMeasure
extends Object
implements Serializable

Based on: http://www.geoapi.org/3.0/javadoc/org/opengis/referencing/doc-files/WKT.html Based on: http://docs.opengeospatial.org/is/12-063r5/12-063r5.html Based on: https://sis.apache.org/apidocs/org/apache/sis/measure/Units.html

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final UnitsOfMeasure	DEGREE_UNITS
static final double	EARTH_MEAN_RADIUS
static final double	EQUATORIAL_DEGREE_TO_METRES
static final UnitsOfMeasure	METRE_UNITS

Constructor Summary

Constructors

Constructor	Description
UnitsOfMeasure(String unitURI)
UnitsOfMeasure(org.opengis.referencing.crs.CoordinateReferenceSystem crs)

Method Summary

Modifier and Type	Method	Description
static final Double	conversion(double sourceDistance, String sourceDistanceUnitsURI, String targetDistanceUnitsURI)	Conversion from target distance in units to source Units Of Measure.
static final Double	conversion(double sourceDistance, UnitsOfMeasure sourceUnits, UnitsOfMeasure targetUnits)	Conversion from target distance in units to source Units Of Measure.
static final double	convertToDegrees(double distance, String unitsURI, double latitude)	Provides conversion of linear units to degrees.
static final double	convertToMetres(double distance, String unitsURI, double latitude)
boolean	equals(Object obj)
javax.measure.Unit<javax.measure.quantity.Length>	getUnit()
String	getUnitURI()
int	hashCode()
boolean	isLinearUnits()
String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Details

METRE_UNITS

public static final UnitsOfMeasure METRE_UNITS

DEGREE_UNITS

public static final UnitsOfMeasure DEGREE_UNITS

EQUATORIAL_DEGREE_TO_METRES

public static final double EQUATORIAL_DEGREE_TO_METRES

See Also:

• Constant Field Values

EARTH_MEAN_RADIUS

public static final double EARTH_MEAN_RADIUS

See Also:

• Constant Field Values

Constructor Details

UnitsOfMeasure

public UnitsOfMeasure(org.opengis.referencing.crs.CoordinateReferenceSystem crs)

UnitsOfMeasure

public UnitsOfMeasure(String unitURI)

Method Details

getUnit

public javax.measure.Unit<javax.measure.quantity.Length> getUnit()

getUnitURI

public String getUnitURI()

isLinearUnits

public boolean isLinearUnits()

conversion

public static final Double conversion(double sourceDistance,
 String sourceDistanceUnitsURI,
 String targetDistanceUnitsURI)
                               throws UnitsConversionException

Conversion from target distance in units to source Units Of Measure.

Parameters:

sourceDistance -

sourceDistanceUnitsURI -

targetDistanceUnitsURI -

Returns:

Distance after conversion.

Throws:

UnitsConversionException

conversion

public static final Double conversion(double sourceDistance,
 UnitsOfMeasure sourceUnits,
 UnitsOfMeasure targetUnits)
                               throws UnitsConversionException

Conversion from target distance in units to source Units Of Measure.

Parameters:

sourceDistance -

sourceUnits -

targetUnits -

Returns:

Distance after conversion.

Throws:

UnitsConversionException

convertToDegrees

public static final double convertToDegrees(double distance,
 String unitsURI,
 double latitude)

Provides conversion of linear units to degrees.
Conversion from linear (i.e. metres) to degrees based on equatorial radius of 111.32km.
Therefore, this should only be used for rough bounding area before using more precise distance methods of GeometryWrapper.

Parameters:

distance -

unitsURI -

latitude -

Returns:

Converted distance in the provided units.

convertToMetres

public static final double convertToMetres(double distance,
 String unitsURI,
 double latitude)

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object