/// <summary>
/// Gets the function of specified logical operation
/// </summary>
/// <param name="operation"></param>
/// <returns></returns>
public static Func <double, double, double> GetLogicalOperationFunction(LogicalOperationEnum operation)
{
if (operation == LogicalOperationEnum.And)
{
return((x1, x2) => (x1 != 0d && x2 != 0d) ? 1d : 0d);
}
if (operation == LogicalOperationEnum.Or)
{
return((x1, x2) => (x1 != 0d || x2 != 0d) ? 1d : 0d);
}
if (operation == LogicalOperationEnum.Xor)
{
return((x1, x2) => (x1 != 0d ^ x2 != 0d) ? 1d : 0d);
}
if (operation == LogicalOperationEnum.NotAnd)
{
return((x1, x2) => !(x1 != 0d && x2 != 0d) ? 1d : 0d);
}
if (operation == LogicalOperationEnum.NotOr)
{
return((x1, x2) => !(x1 != 0d || x2 != 0d) ? 1d : 0d);
}
if (operation == LogicalOperationEnum.NotXor)
{
return((x1, x2) => !(x1 != 0d ^ x2 != 0d) ? 1d : 0d);
}
return((x1, x2) => (x1 == 0d) ? 1d : 0d); //Not
}
/// <summary>
/// Executes a logical operation between two arrays
/// </summary>
public static double[] ExecuteLogicOperation(LogicalOperationEnum operation, double[] array1, double[] array2)
{
var output = MemoryPool.Pool.New<double>(Math.Max(array1.Length, array2.Length));
var function = GetLogicalOperationFunction(operation);
for (var i = 0; i < Math.Min(array1.Length, array2.Length); i++)
{
output[i] = function(array1[i], array2[i]);
}
return output;
}
/// <summary>
/// Executes a logical operation between two arrays
/// </summary>
public static double[] ExecuteLogicOperation(LogicalOperationEnum operation, double[] array1, double[] array2)
{
var output = MemoryPool.Pool.New <double>(Math.Max(array1.Length, array2.Length));
var function = GetLogicalOperationFunction(operation);
for (var i = 0; i < Math.Min(array1.Length, array2.Length); i++)
{
output[i] = function(array1[i], array2[i]);
}
return(output);
}
/// <summary>
/// Executes a logical operation between two or more signals
/// </summary>
public static Signal ExecuteLogicOperation(LogicalOperationEnum operation, params Signal[] signals)
{
signals = signals.Where(it => it != null && it.Samples != null && it.Samples.Length > 0).OrderByDescending(it => it.Samples.Length).ToArray();
if (signals.Length == 0)
{
return(null);
}
var newSignal = signals[0].Clone();
for (var i = 1; i < signals.Length; i++)
{
newSignal.Samples = ExecuteLogicOperation(operation, newSignal.Samples, signals[i].Samples);
}
return(newSignal);
}
/// <summary>
/// Executes a logical operation between two or more signals
/// </summary>
public static Signal ExecuteLogicOperation(LogicalOperationEnum operation, params Signal[] signals)
{
signals = signals.Where(it => it != null && it.Samples != null && it.Samples.Length > 0).OrderByDescending(it => it.Samples.Length).ToArray();
if (signals.Length == 0)
return null;
var newSignal = signals[0].Clone();
for (var i = 1; i < signals.Length; i++)
{
newSignal.Samples = ExecuteLogicOperation(operation, newSignal.Samples, signals[i].Samples);
}
return newSignal;
}
/// <summary>
/// Gets the function of specified logical operation
/// </summary>
/// <param name="operation"></param>
/// <returns></returns>
public static Func<double, double, double> GetLogicalOperationFunction(LogicalOperationEnum operation)
{
if(operation == LogicalOperationEnum.And)
{
return (x1, x2) => (x1 != 0d && x2 != 0d) ? 1d : 0d;
}
if (operation == LogicalOperationEnum.Or)
{
return (x1, x2) => (x1 != 0d || x2 != 0d) ? 1d : 0d;
}
if (operation == LogicalOperationEnum.Xor)
{
return (x1, x2) => (x1 != 0d ^ x2 != 0d) ? 1d : 0d;
}
if (operation == LogicalOperationEnum.NotAnd)
{
return (x1, x2) => !(x1 != 0d && x2 != 0d) ? 1d : 0d;
}
if (operation == LogicalOperationEnum.NotOr)
{
return (x1, x2) => !(x1 != 0d || x2 != 0d) ? 1d : 0d;
}
if (operation == LogicalOperationEnum.NotXor)
{
return (x1, x2) => !(x1 != 0d ^ x2 != 0d) ? 1d : 0d;
}
return (x1, x2) => (x1 == 0d) ? 1d : 0d; //Not
}
