/// <summary>
/// Creates the graph of the function on which the increment function has been added
/// </summary>
/// <param name="context">the context used to evaluate the function</param>
/// <param name="increment">The increment function do add</param>
/// <returns></returns>
public Graph AddIncrement(Interpreter.InterpretationContext context, Functions.Function increment)
{
Graph retVal = new Graph();
if (IsFlat() && increment.FormalParameters.Count == 1)
{
Parameter parameter = (Parameter)increment.FormalParameters[0];
foreach (Segment segment in Segments)
{
Dictionary <Variables.Actual, Values.IValue> actuals = new Dictionary <Variables.Actual, Values.IValue>();
Variables.Actual actual = parameter.createActual();
actuals[actual] = new Values.DoubleValue(increment.EFSSystem.DoubleType, segment.Expression.v0);
Values.IValue result = increment.Evaluate(context, actuals);
Segment newSegment = new Segment(segment);
newSegment.Expression.v0 = segment.Expression.v0 + Function.getDoubleValue(result);
retVal.addSegment(newSegment);
}
}
return(retVal);
}
/// <summary>
/// Provides the value associated to this Expression
/// </summary>
/// <param name="context">The context on which the value must be found</param>
/// <returns></returns>
public override Values.IValue GetValue(InterpretationContext context)
{
Values.IValue retVal = null;
ExplanationPart previous = SetupExplanation();
Functions.Function function = getFunction(context);
if (function != null)
{
long start = System.Environment.TickCount;
Dictionary <Variables.Actual, Values.IValue> parameterValues = AssignParameterValues(context, function, true);
List <Parameter> parameters = GetPlaceHolders(function, parameterValues);
if (parameters == null)
{
retVal = function.Evaluate(context, parameterValues);
if (retVal == null)
{
AddError("Call " + function.Name + " ( " + ParameterValues(parameterValues) + " ) returned nothing");
}
}
else if (parameters.Count == 1) // graph
{
int token = context.LocalScope.PushContext();
context.LocalScope.setGraphParameter(parameters[0]);
Functions.Graph graph = function.createGraphForParameter(context, parameters[0]);
context.LocalScope.PopContext(token);
if (graph != null)
{
retVal = graph.Function;
}
else
{
AddError("Cannot create graph on Call " + function.Name + " ( " + ParameterValues(parameterValues) + " )");
}
}
else // surface
{
Functions.Surface surface = function.createSurfaceForParameters(context, parameters[0], parameters[1]);
if (surface != null)
{
retVal = surface.Function;
}
else
{
AddError("Cannot create surface on Call " + function.Name + " ( " + ParameterValues(parameterValues) + " )");
}
}
long stop = System.Environment.TickCount;
long span = (stop - start);
function.ExecutionTimeInMilli += span;
function.ExecutionCount += 1;
if (explain)
{
CompleteExplanation(previous, function.Name + " ( " + ParameterValues(parameterValues) + " ) returned " + explainNamable(retVal) + "\n");
}
}
else
{
AddError("Cannot find function " + ToString());
}
return(retVal);
}