egonw / jqudt

Java library for working with the QUDT ontology and data using it.

Introduction

Java Library to deal with QUDT units and conversions between them.

QUDT is "Quantities, Units, Dimensions and Data Types in OWL and XML"

http://www.qudt.org/

QUDT is a CC-SA-BY project by NASA Ames Research Center and TopQuadrant, Inc.

License of this Java library: new BSD

Installation

Maven:

<dependency>
  <groupId>com.github.egonw</groupId>
  <artifactId>jqudt</artifactId>
  <version>1.4.0</version>
</dependency>

Groovy:

@Grab(group='com.github.egonw', module='jqudt', version='1.4.0')

Quick demo

Keep in mind, that the below conversions are purely derived from the information defined in the QUDT ontology, taking advantage from the fact that the have the same unit type, qudt:MolarConcentrationUnit and qudt:TemperatureUnit respectively.

Source:

Quantity obs = new Quantity(0.1, ConcentrationUnit.MICROMOLAR);
System.out.println(obs + " = " +  obs.convertTo(ConcentrationUnit.NANOMOLAR));

Quantity temp = new Quantity(20, TemperatureUnit.CELSIUS);
System.out.println(temp + " = " +  temp.convertTo(TemperatureUnit.KELVIN));

Output

0.1 μM = 100.00000000000001 nM
20.0 C = 293.0 K