/// <summary>
/// Provides the surface of this function if it has been statically defined
/// </summary>
/// <param name="context">the context used to create the graph</param>
/// <param name="Xparameter">The parameter used for the X axis</param>
/// <param name="Yparameter">The parameter used for the Y axis</param>
/// <returns></returns>
public virtual Surface createSurfaceForParameters(Interpreter.InterpretationContext context, Parameter Xparameter, Parameter Yparameter)
{
Surface retVal = Surface;
if (retVal == null)
{
if (Xparameter != null)
{
if (Yparameter != null)
{
if (Cases.Count > 0)
{
retVal = new Surface(Xparameter, Yparameter);
foreach (Case cas in Cases)
{
if (PreconditionSatisfied(context, cas, Xparameter, Yparameter))
{
Surface surface = cas.Expression.createSurface(context, Xparameter, Yparameter);
if (surface != null)
{
Parameter parameter = null;
surface = ReduceSurface(context, cas, surface, out parameter);
if (parameter == null || parameter == surface.XParameter)
{
retVal.MergeX(surface);
}
else
{
retVal = Surface.MergeY(retVal, surface);
}
}
else
{
AddError("Cannot create surface for expression " + cas.ExpressionText);
retVal = null;
break;
}
}
}
}
else if (Graph != null)
{
// The function is defined by a graph
// Extend it to a surface
// TODO: Check the right parameter
retVal = Graph.ToSurfaceX();
retVal.XParameter = Xparameter;
retVal.YParameter = Yparameter;
}
else
{
AddError("cannot create surface for function " + Name + " with given parameters");
}
}
else
{
// Function with 1 parameter that ranges over the Xaxis
retVal = new Surface(Xparameter, Yparameter);
Functions.Graph graph = createGraphForParameter(context, Xparameter);
foreach (Graph.Segment segment in graph.Segments)
{
Graph newGraph = Graph.createGraph(segment.Expression.v0);
Surface.Segment newSegment = new Surface.Segment(segment.Start, segment.End, newGraph);
retVal.AddSegment(newSegment);
}
}
}
else if (Yparameter != null)
{
// TODO : Remove check code
if ((Yparameter.Enclosing != this))
{
System.Diagnostics.Debugger.Break();
}
// Function with 1 parameter that ranges over the Yaxis
retVal = new Surface(Xparameter, Yparameter);
Graph graph = createGraphForParameter(context, Yparameter);
Surface.Segment segment = new Functions.Surface.Segment(0, double.MaxValue, graph);
retVal.AddSegment(segment);
}
else
{
AddError("Invalid parameters for surface creation");
}
}
retVal.XParameter = Xparameter;
retVal.YParameter = Yparameter;
return(retVal);
}
/// <summary>
/// Provides the surface of this function if it has been statically defined
/// </summary>
/// <param name="context">the context used to create the graph</param>
/// <param name="Xparameter">The parameter used for the X axis</param>
/// <param name="Yparameter">The parameter used for the Y axis</param>
/// <returns></returns>
public virtual Surface createSurfaceForParameters(Interpreter.InterpretationContext context, Parameter Xparameter, Parameter Yparameter)
{
Surface retVal = Surface;
if (retVal == null)
{
if (Xparameter != null)
{
if (Yparameter != null)
{
if (Cases.Count > 0)
{
retVal = new Surface(Xparameter, Yparameter);
foreach (Case cas in Cases)
{
if (PreconditionSatisfied(context, cas, Xparameter, Yparameter))
{
Surface surface = cas.Expression.createSurface(context, Xparameter, Yparameter);
if (surface != null)
{
Parameter parameter = null;
surface = ReduceSurface(context, cas, surface, out parameter);
if (parameter == null || parameter == surface.XParameter)
{
retVal.MergeX(surface);
}
else
{
retVal = Surface.MergeY(retVal, surface);
}
}
else
{
AddError("Cannot create surface for expression " + cas.ExpressionText);
retVal = null;
break;
}
}
}
}
else if (Graph != null)
{
// The function is defined by a graph
// Extend it to a surface
// TODO: Check the right parameter
retVal = Graph.ToSurfaceX();
retVal.XParameter = Xparameter;
retVal.YParameter = Yparameter;
}
else
{
AddError("cannot create surface for function " + Name + " with given parameters");
}
}
else
{
// Function with 1 parameter that ranges over the Xaxis
retVal = new Surface(Xparameter, Yparameter);
Functions.Graph graph = createGraphForParameter(context, Xparameter);
foreach (Graph.Segment segment in graph.Segments)
{
Graph newGraph = Graph.createGraph(segment.Expression.v0);
Surface.Segment newSegment = new Surface.Segment(segment.Start, segment.End, newGraph);
retVal.AddSegment(newSegment);
}
}
}
else if (Yparameter != null)
{
// TODO : Remove check code
if ((Yparameter.Enclosing != this))
{
System.Diagnostics.Debugger.Break();
}
// Function with 1 parameter that ranges over the Yaxis
retVal = new Surface(Xparameter, Yparameter);
Graph graph = createGraphForParameter(context, Yparameter);
Surface.Segment segment = new Functions.Surface.Segment(0, double.MaxValue, graph);
retVal.AddSegment(segment);
}
else
{
AddError("Invalid parameters for surface creation");
}
}
retVal.XParameter = Xparameter;
retVal.YParameter = Yparameter;
return retVal;
}