private void OnSimulationCommencing(object sender, EventArgs e)
{
ProportionOfTotalDM = new double[forages.Count];
if (GrazingRotationType == GrazingRotationTypeEnum.TargetMass)
{
if (PreGrazeDMArray == null || PreGrazeDMArray.Length != 12)
{
throw new Exception("There must be 12 values input for the pre-grazing DM");
}
if (PostGrazeDMArray == null || PostGrazeDMArray.Length != 12)
{
throw new Exception("There must be 12 values input for the post-grazing DM");
}
}
else if (GrazingRotationType == GrazingRotationTypeEnum.Flexible)
{
if (string.IsNullOrEmpty(FlexibleExpressionForTimingOfGrazing))
{
throw new Exception("You must specify an expression for timing of grazing.");
}
expressionFunction = new CSharpExpressionFunction();
expressionFunction.Parent = this;
expressionFunction.Expression = "Convert.ToDouble(" + FlexibleExpressionForTimingOfGrazing + ")";
expressionFunction.SetCompiler(compiler);
expressionFunction.CompileExpression();
}
if (FractionExcretedNToDung != null && FractionExcretedNToDung.Length != 1 && FractionExcretedNToDung.Length != 12)
{
throw new Exception("You must specify either a single value for 'proportion of defoliated nitrogen going to dung' or 12 monthly values.");
}
if (SimpleGrazingFrequencyString != null && SimpleGrazingFrequencyString.Equals("end of month", StringComparison.InvariantCultureIgnoreCase))
{
simpleGrazingFrequency = 0;
}
else
{
simpleGrazingFrequency = Convert.ToInt32(SimpleGrazingFrequencyString);
}
if (FractionDefoliatedNToSoil == null || FractionDefoliatedNToSoil.Length == 0)
{
FractionDefoliatedNToSoil = new double[] { 0 }
}
;
// Initialise the days since grazing.
if (GrazingRotationType == GrazingRotationTypeEnum.SimpleRotation)
{
DaysSinceGraze = simpleGrazingFrequency;
}
else if ((GrazingRotationType == GrazingRotationTypeEnum.TargetMass ||
GrazingRotationType == GrazingRotationTypeEnum.Flexible) &&
MinimumRotationLengthArray != null)
{
DaysSinceGraze = Convert.ToInt32(MinimumRotationLengthArray[clock.Today.Month - 1]);
}
}
private void OnSimulationCommencing(object sender, EventArgs e)
{
if (forages == null)
{
throw new Exception("No forages component found in simulation.");
}
var parentZone = Parent as Zone;
if (parentZone == null)
{
throw new Exception("SimpleGrazing is not in a zone");
}
allForages = forages.ModelsWithDigestibleBiomass.Where(forage => forage.Zone == parentZone).ToList();
ProportionOfTotalDM = new double[allForages.Count()];
if (GrazingRotationType == GrazingRotationTypeEnum.TargetMass)
{
if (PreGrazeDMArray == null || PreGrazeDMArray.Length != 12)
{
throw new Exception("There must be 12 values input for the pre-grazing DM");
}
if (PostGrazeDMArray == null || PostGrazeDMArray.Length != 12)
{
throw new Exception("There must be 12 values input for the post-grazing DM");
}
}
else if (GrazingRotationType == GrazingRotationTypeEnum.Flexible)
{
if (string.IsNullOrEmpty(FlexibleExpressionForTimingOfGrazing))
{
throw new Exception("You must specify an expression for timing of grazing.");
}
expressionFunction = new CSharpExpressionFunction();
expressionFunction.Parent = this;
expressionFunction.Expression = "Convert.ToDouble(" + FlexibleExpressionForTimingOfGrazing + ")";
expressionFunction.SetCompiler(compiler);
expressionFunction.CompileExpression();
}
if (FractionExcretedNToDung != null && FractionExcretedNToDung.Length != 1 && FractionExcretedNToDung.Length != 12)
{
throw new Exception("You must specify either a single value for 'proportion of defoliated nitrogen going to dung' or 12 monthly values.");
}
if (SpeciesCutProportions == null)
{
SpeciesCutProportions = MathUtilities.CreateArrayOfValues(1.0, allForages.Count());
}
if (SpeciesCutProportions.Sum() != allForages.Count)
{
throw new Exception("The species cut weightings must add up to the number of species.");
}
if (SimpleGrazingFrequencyString != null && SimpleGrazingFrequencyString.Equals("end of month", StringComparison.InvariantCultureIgnoreCase))
{
simpleGrazingFrequency = 0;
}
else
{
simpleGrazingFrequency = Convert.ToInt32(SimpleGrazingFrequencyString);
}
if (FractionDefoliatedNToSoil == null || FractionDefoliatedNToSoil.Length == 0)
{
FractionDefoliatedNToSoil = new double[] { 0 }
}
;
// Initialise the days since grazing.
if (GrazingRotationType == GrazingRotationTypeEnum.SimpleRotation)
{
DaysSinceGraze = simpleGrazingFrequency;
}
else if ((GrazingRotationType == GrazingRotationTypeEnum.TargetMass ||
GrazingRotationType == GrazingRotationTypeEnum.Flexible) &&
MinimumRotationLengthArray != null)
{
DaysSinceGraze = Convert.ToInt32(MinimumRotationLengthArray[clock.Today.Month - 1]);
}
}
