private Weight ReadWeight()
{
_readLock.Wait();
try
{
int raw = ReadRaw();
double unitValue = (raw - TareValue) / _settings.CalibrationValue;
IWeightSystem baseWeight = null;
if (_settings.CalibrationWeightSystem == WeightSystem.Metric)
{
baseWeight = new MetricWeight(unitValue, _settings.CalibrationMetricUnit);
}
else if (_settings.CalibrationWeightSystem == WeightSystem.Imperial)
{
baseWeight = new ImperialWeight(unitValue, _settings.CalibrationImperialUnit);
}
else
{
throw new Exception("HX711 was uncalibrated or not calibrated properly and can't convert to a weight!");
}
return(new Weight(baseWeight));
}
finally
{
_readLock.Release();
}
}
public void TestConvertImperialToMetric()
{
var result = ImperialWeight.FromStonePoundsAndOunces(12, 8, 5.9136M);
Assert.AreEqual(176.37M, result.TotalPounds);
Assert.AreEqual(12, result.Stone);
Assert.AreEqual(8, result.Pounds);
Assert.AreEqual(5.9136M, result.Ounces);
Assert.AreEqual(80M, result.TotalKilos);
}
public WeightConversionTableViewModel(IActionSheetController sheetController, INavigationService navigationService, ISchedulerService scheduler, IViewModelFactory viewModelFactory)
: base(navigationService, scheduler)
{
if (viewModelFactory == null)
{
throw new ArgumentNullException(nameof(viewModelFactory));
}
Title = "Weight Conversion";
ShowNavigationBar = true;
Intent = TableIntent.Form;
SeparatorStyle = TableCellSeparatorStyle.SingleLine;
_topSection = AddSection("Converter");
var poundsCell = new NumericEntryCellViewModel()
{
Label = "Pounds", IsInteger = false
};
var kilosCell = new NumericEntryCellViewModel()
{
Label = "Kilos", IsInteger = false
};
poundsCell.Values.ObserveOn(Scheduler.UiScheduler)
.Where(e => e.HasValue)
.Subscribe((e) =>
{
// We have a new pounds value, we need to process this and push the related kilos value to the kilos cell.
kilosCell.Value = WeightConverter.ToKilosFromPounds(e.Value);
});
_topSection.AddCell(poundsCell);
kilosCell.Values.ObserveOn(Scheduler.UiScheduler)
.Where(e => e.HasValue)
.Subscribe((e) =>
{
poundsCell.Value = ImperialWeight.FromKilos(e.Value).TotalPounds;
});
_topSection.AddCell(kilosCell);
}
