Examples with UnitConverter javax.measure.UnitConverter used on opensource projects

Example 51 with UnitConverter

use of javax.measure.UnitConverter in project uom-se by unitsofmeasurement.

the class PrefixTest method testNestedOperationsNotTheSame.

@Test
public void testNestedOperationsNotTheSame() {
    Unit<Mass> m1 = MICRO(GRAM);
    Unit<Mass> m2 = GRAM.divide(1000).divide(2000);
    UnitConverter c1 = m1.getConverterTo(m2);
    List steps1 = c1.getConversionSteps();
    UnitConverter c2 = m2.getConverterTo(m1);
    List steps2 = c2.getConversionSteps();
    assertNotEquals(c1, c2);
    assertNotEquals(m1, m2);
}

Example 52 with UnitConverter

use of javax.measure.UnitConverter in project uom-se by unitsofmeasurement.

the class UnitsTest method testConverterToSI.

/**
 * Test method for {@link javax.measure.Unit#toMetric()}.
 */
// @Test
// public void testToMetric() {
// AbstractUnit<? extends QuantityAmount> su = (AbstractUnit<? extends
// QuantityAmount>) one.toMetric();
// assertTrue(su.isUnscaledMetric());
// }
/**
 * Test method for {@link javax.measure.Unit#getConverterTo}.
 */
@Test
public void testConverterToSI() {
    Double factor = 10.0;
    UnitConverter converter = one.getConverterTo(one);
    Double result = converter.convert(factor.doubleValue());
    assertEquals(result, factor);
    logger.log(Level.FINER, result.toString());
}

Example 53 with UnitConverter

use of javax.measure.UnitConverter in project n2a by frothga.

the class ExportJob method morphologyUnits.

public String morphologyUnits(String value) {
    value = value.trim();
    int unitIndex = UnitValue.findUnits(value);
    // no number
    if (unitIndex == 0)
        return "0" + value;
    // no unit
    if (unitIndex >= value.length())
        return value;
    String unitString = value.substring(unitIndex).trim();
    value = value.substring(0, unitIndex);
    Unit<?> unit = UCUM.parse(unitString);
    double v = 0;
    try {
        v = Double.valueOf(value);
        UnitConverter converter = unit.getConverterToAny(um);
        v = converter.convert(v);
    } catch (Exception error) {
    }
    unitsUsed.put(um, "um");
    // no unit string at end of number, because morphology units are always in um
    return print(v);
}

Example 54 with UnitConverter

use of javax.measure.UnitConverter in project n2a by frothga.

the class ExportJob method appendUnits.

@SuppressWarnings({ "rawtypes", "unchecked" })
public void appendUnits(boolean assumeNML) {
    // Purge pure dimensions (added independent of specific unit) if they are standard and NML dimensions are available.
    if (assumeNML) {
        List<String> keys = new ArrayList<String>(dimensionsUsed.keySet());
        for (String key : keys) {
            Dimension d = dimensionsUsed.get(key);
            if (dimensionsNML.containsKey(d))
                dimensionsUsed.remove(key);
        }
    }
    for (Entry<Unit<?>, String> e : unitsUsed.entrySet()) {
        Unit<?> key = e.getKey();
        if (assumeNML && unitsNML.containsKey(key))
            continue;
        String symbol = e.getValue();
        Dimension dimension = key.getDimension();
        String dimensionName = dimensionsNML.get(dimension);
        if (// Not a standard NML dimension
        dimensionName == null) {
            dimensionName = dimension.toString();
            dimensionsUsed.put(dimensionName, dimension);
        } else if (// Is a standard NML dimension, so only add if don't have NML dimensions available.
        !assumeNML) {
            dimensionsUsed.put(dimensionName, dimension);
        }
        Element unit = addElement("Unit", elements);
        unit.setAttribute("symbol", symbol);
        unit.setAttribute("dimension", dimensionName);
        // Determine offset
        Unit systemUnit = key.getSystemUnit();
        UnitConverter converter = key.getConverterTo(systemUnit);
        double offset = converter.convert(Integer.valueOf(0)).doubleValue();
        if (offset != 0)
            unit.setAttribute("offset", String.valueOf(offset));
        // Determine power*scale
        double scale = converter.convert(Integer.valueOf(1)).doubleValue() - offset;
        int power = (int) Math.round(Math.log(scale) / Math.log(10));
        if (Math.abs(scale - Math.pow(10, power)) < epsilon) {
            unit.setAttribute("power", String.valueOf(power));
        } else {
            unit.setAttribute("scale", String.valueOf(scale));
        }
    }
    for (Entry<String, Dimension> d : dimensionsUsed.entrySet()) {
        String name = d.getKey();
        Dimension value = d.getValue();
        Element dimension = addElement("Dimension", elements);
        dimension.setAttribute("name", name);
        Map<? extends Dimension, Integer> bases = value.getBaseDimensions();
        if (bases == null) {
            Map<Dimension, Integer> temp = new HashMap<Dimension, Integer>();
            temp.put(value, 1);
            bases = temp;
        }
        for (Entry<? extends Dimension, Integer> e : bases.entrySet()) {
            String base = e.getKey().toString().substring(1, 2).toLowerCase();
            if (base.equals("θ"))
                base = "k";
            dimension.setAttribute(base, e.getValue().toString());
        }
    }
}