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

Example 1 with Unit

use of javax.measure.Unit in project unit-api by unitsofmeasurement.

the class DefaultTestQuantityFormat method parse.

@SuppressWarnings("unchecked")
@Override
public Quantity<?> parse(CharSequence csq, int index) throws MeasurementParseException {
    // cursor.getIndex();
    int startDecimal = index;
    while ((startDecimal < csq.length()) && Character.isWhitespace(csq.charAt(startDecimal))) {
        startDecimal++;
    }
    int endDecimal = startDecimal + 1;
    while ((endDecimal < csq.length()) && !Character.isWhitespace(csq.charAt(endDecimal))) {
        endDecimal++;
    }
    try {
        final Double decimal = new Double(csq.subSequence(startDecimal, endDecimal).toString());
        final String uStr = csq.subSequence(endDecimal + 1, csq.length()).toString();
        Unit unit = SimpleTestUnitFormat.getInstance().parse(uStr);
        return TestQuantities.getQuantity(decimal, unit);
    } catch (NumberFormatException nfe) {
        throw new MeasurementParseException(nfe);
    }
}

Example 2 with Unit

use of javax.measure.Unit in project com.revolsys.open by revolsys.

the class ProjectedCoordinateSystem method getCoordinatesOperation.

@Override
public CoordinatesOperation getCoordinatesOperation(final CoordinateSystem coordinateSystem) {
    if (coordinateSystem == null || this == coordinateSystem) {
        return null;
    } else {
        final List<CoordinatesOperation> operations = new ArrayList<>();
        final CoordinatesOperation inverseOperation = this.getInverseCoordinatesOperation();
        if (inverseOperation == null) {
            return null;
        }
        final Unit<Length> linearUnit1 = this.getLengthUnit();
        if (!linearUnit1.equals(Units.METRE)) {
            operations.add(new UnitConverstionOperation(linearUnit1, Units.METRE));
        }
        operations.add(inverseOperation);
        if (coordinateSystem instanceof ProjectedCoordinateSystem) {
            final ProjectedCoordinateSystem projectedCoordinateSystem = (ProjectedCoordinateSystem) coordinateSystem;
            final CoordinatesOperation projectOperation = projectedCoordinateSystem.getProjectCoordinatesOperation();
            if (projectOperation != null) {
                operations.add(projectOperation);
            }
            final Unit<Length> linearUnit2 = projectedCoordinateSystem.getLengthUnit();
            if (!linearUnit2.equals(Units.METRE)) {
                operations.add(new UnitConverstionOperation(Units.METRE, linearUnit2));
            }
        } else if (coordinateSystem instanceof GeographicCoordinateSystem) {
            final GeographicCoordinateSystem geographicCoordinateSystem = (GeographicCoordinateSystem) coordinateSystem;
            final Unit<Angle> angularUnit2 = geographicCoordinateSystem.getUnit();
            if (!angularUnit2.equals(NonSI.DEGREE_ANGLE)) {
                operations.add(new UnitConverstionOperation(NonSI.DEGREE_ANGLE, angularUnit2, 2));
            }
        } else {
            return null;
        }
        switch(operations.size()) {
            case 0:
                return null;
            case 1:
                return operations.get(0);
            default:
                return new ChainedCoordinatesOperation(operations);
        }
    }
}

Example 3 with Unit

use of javax.measure.Unit in project com.revolsys.open by revolsys.

the class GeographicCoordinateSystem method getCoordinatesOperation.

@Override
public CoordinatesOperation getCoordinatesOperation(final CoordinateSystem coordinateSystem) {
    if (coordinateSystem == null || this == coordinateSystem) {
        return null;
    } else if (coordinateSystem instanceof GeographicCoordinateSystem) {
        final GeographicCoordinateSystem geographicCoordinateSystem = (GeographicCoordinateSystem) coordinateSystem;
        final Unit<Angle> angularUnit1 = getUnit();
        // TODO GeodeticDatum shift
        final Unit<Angle> angularUnit2 = geographicCoordinateSystem.getUnit();
        if (!angularUnit1.equals(angularUnit2)) {
            return new UnitConverstionOperation(angularUnit1, angularUnit2, 2);
        } else {
            return null;
        }
    } else if (coordinateSystem instanceof ProjectedCoordinateSystem) {
        final ProjectedCoordinateSystem projectedCoordinateSystem = (ProjectedCoordinateSystem) coordinateSystem;
        final List<CoordinatesOperation> operations = new ArrayList<>();
        final Unit<Angle> angularUnit1 = getUnit();
        if (!angularUnit1.equals(NonSI.DEGREE_ANGLE)) {
            CoordinatesOperation converstionOperation;
            if (angularUnit1.equals(Units.RADIAN)) {
                converstionOperation = RadiansToDegreesOperation.INSTANCE;
            } else {
                converstionOperation = new UnitConverstionOperation(angularUnit1, NonSI.DEGREE_ANGLE, 2);
            }
            operations.add(converstionOperation);
        }
        // TODO geodeticDatum shift
        final CoordinatesOperation projectOperation = projectedCoordinateSystem.getProjectCoordinatesOperation();
        if (projectOperation != null) {
            operations.add(projectOperation);
        }
        final Unit<Length> linearUnit2 = projectedCoordinateSystem.getLengthUnit();
        if (!linearUnit2.equals(Units.METRE)) {
            operations.add(new UnitConverstionOperation(Units.METRE, linearUnit2));
        }
        switch(operations.size()) {
            case 0:
                return null;
            case 1:
                return operations.get(0);
            default:
                return new ChainedCoordinatesOperation(operations);
        }
    } else {
        return null;
    }
}

Example 4 with Unit

use of javax.measure.Unit in project com.revolsys.open by revolsys.

the class LineString method getLength.

@Override
default double getLength(final Unit<Length> unit) {
    double length = 0;
    final CoordinateSystem coordinateSystem = getCoordinateSystem();
    if (coordinateSystem instanceof GeographicCoordinateSystem) {
        final int vertexCount = getVertexCount();
        if (vertexCount > 1) {
            double lon0 = getX(0);
            double lat0 = getY(0);
            for (int i = 1; i < vertexCount; i++) {
                final double lon1 = getX(i);
                final double lat1 = getY(i);
                length += GeographicCoordinateSystem.distanceMetres(lon0, lat0, lon1, lat1);
                lon0 = lon1;
                lat0 = lat1;
            }
        }
        final Quantity<Length> lengthMeasure = Quantities.getQuantity(length, Units.METRE);
        length = QuantityType.doubleValue(lengthMeasure, unit);
    } else if (coordinateSystem instanceof ProjectedCoordinateSystem) {
        final ProjectedCoordinateSystem projectedCoordinateSystem = (ProjectedCoordinateSystem) coordinateSystem;
        final Unit<Length> lengthUnit = projectedCoordinateSystem.getLengthUnit();
        length = getLength();
        final Quantity<Length> lengthMeasure = Quantities.getQuantity(length, lengthUnit);
        length = QuantityType.doubleValue(lengthMeasure, unit);
    } else {
        length = getLength();
    }
    return length;
}

Example 5 with Unit

use of javax.measure.Unit in project com.revolsys.open by revolsys.

the class LinearRing method getPolygonArea.

default double getPolygonArea(final Unit<Area> unit) {
    double area = 0;
    final CoordinateSystem coordinateSystem = getCoordinateSystem();
    if (coordinateSystem instanceof GeographicCoordinateSystem) {
        // TODO better algorithm than converting to world mercator
        final GeometryFactory geometryFactory = GeometryFactory.worldMercator();
        final LinearRing ring = as2d(geometryFactory);
        return ring.getPolygonArea(unit);
    } else if (coordinateSystem instanceof ProjectedCoordinateSystem) {
        final ProjectedCoordinateSystem projectedCoordinateSystem = (ProjectedCoordinateSystem) coordinateSystem;
        final Unit<Length> lengthUnit = projectedCoordinateSystem.getLengthUnit();
        @SuppressWarnings("unchecked") final Unit<Area> areaUnit = (Unit<Area>) lengthUnit.multiply(lengthUnit);
        area = getPolygonArea();
        final Quantity<Area> areaMeasure = Quantities.getQuantity(area, areaUnit);
        area = QuantityType.doubleValue(areaMeasure, unit);
    } else {
        area = getPolygonArea();
    }
    return area;
}