@Override
public void convertTo(final Measure _measure) {
if (_measure == null) {
throw new NullPointerException("Measure");
}
if (orginalValue.getMeasure() == _measure) {
convert = orginalValue;
return;
}
if (convert != null && convert.getMeasure() == _measure) {
return;
}
if (!supportedMeasure.contains(_measure)) {
throw new IllegalArgumentException(
"cant convert "
+ orginalValue.getMeasure().getDescription()
+ " into "
+ _measure.getShortDisplayName());
}
// System.out.println("Converting into: "+_measure.getDescription());
// TODO: Move calculation into switch block for better performance
//
final float v = orginalValue.getValue(); // always Knots!!!
final float ms = v * 0.514444f; // m s-1
final float kmh = v * 1.852f; // km/h
final float knot = v; // knots
final float mph = v * 1.150779f; // mi h-1
final float fts = (v * 1.687810f); // ft s-1
final float mmi = (ms * 60.f); // m min-1
final float ftm = (fts * 60.f); // ft min-1
final int beaufort = knotToBeaufort(knot);
switch (_measure) {
case MPS:
convert = WindSpeed.create(ms, Measure.MPS);
break;
case KMH:
convert = WindSpeed.create(kmh, Measure.KMH);
break;
case KNOTS:
convert = WindSpeed.create(knot, Measure.KNOTS);
break;
case MPH:
convert = WindSpeed.create(mph, Measure.MPH);
break;
case FPS:
convert = WindSpeed.create(fts, Measure.FPS);
break;
case MMI:
convert = WindSpeed.create(mmi, Measure.MMI);
break;
case FTM:
convert = WindSpeed.create(ftm, Measure.FTM);
break;
case BEAUFORT:
convert = WindSpeed.create(beaufort, Measure.BEAUFORT);
break;
default:
throw new IllegalArgumentException("unknown Measure" + _measure.getDescription());
}
}
/*
* (non-Javadoc)
*
* @see de.macsystems.windroid.identifyable.IMeasureValue#getMeasure()
*/
@Override
public Measure getMeasure() {
convertTo(preferredMeasure);
return convert.getMeasure();
}