public void GenerateFunction()
{
// Sort all the points
this.FunctionPoints = this.FunctionPoints.OrderBy(a => a.X).ToList();
// Get the coefficient matrix
var coefMtrx = GenerateCoefficientMatrix();
// Calculate the determinant of the coefficient matrix
double determinant = FunctionCalculator.Determinant(coefMtrx);
List <double> yValues = this.FunctionPoints.Select(a => a.Y).ToList();
List <double> valuesOfCoef = new List <double>();
for (int col = 0; col < this.FunctionPoints.Count; col++)
{
double[,] newMatrix = FunctionCalculator.ReplaceCol((double[, ])coefMtrx.Clone(), yValues, col);
double newDeterminant = FunctionCalculator.Determinant(newMatrix);
valuesOfCoef.Add(newDeterminant / determinant);
}
// Get function tree
TreeNode generatedTree = FunctionCalculator.GenerateFumcTreeFromCoefficients(valuesOfCoef);
// Create function
Function newFunction = new Function(generatedTree);
// Add Function to the rest
this.Window.Controller.AddFunction(newFunction);
// Draw the new function
this.Painter.DrawFunction(newFunction);
}
protected override void Given()
{
_outputVariable = new Variable("Grasp", "Test", typeof(int));
_value = 1;
_function = runtime => _value;
_calculator = new FunctionCalculator(_outputVariable, _function);
var schema = new GraspSchema(Enumerable.Empty<Variable>(), Enumerable.Empty<Calculation>());
_runtime = new GraspRuntime(schema, _calculator, Enumerable.Empty<VariableBinding>());
}
protected override void Given()
{
_outputVariable1 = new Variable("Grasp", "Test1", typeof(int));
_outputVariable2 = new Variable("Grasp", "Test2", typeof(int));
_value1 = 1;
_value2 = 2;
_function1 = runtime => _value1;
_function2 = runtime => _value2;
_calculator1 = new FunctionCalculator(_outputVariable1, _function1);
_calculator2 = new FunctionCalculator(_outputVariable2, _function2);
_compositeCalculator = new CompositeCalculator(_calculator1, _calculator2);
var schema = new GraspSchema(Enumerable.Empty<Variable>(), Enumerable.Empty<Calculation>());
_runtime = new GraspRuntime(schema, _compositeCalculator, Enumerable.Empty<VariableBinding>());
}
/// <summary>
/// Set the function from the list according to its name
/// </summary>
/// <param name="idx">Index of the function name in an array</param>
private void SetAFunction(int idx)
{
_functionCalc = ChooseAFunction(idx);
}
protected override void When()
{
_calculator = new FunctionCalculator(_outputVariable, _function);
}
