using System;
using System.Collections;
using System.Collections.Generic;
namespace FormulaEditor
{
///
/// Summary description for ElementaryFormulaSimplification.
///
public class ElementaryFormulaSimplification : FormulaSimplification
{
//private IFormulaCreatorOperation creator;
private static readonly Double a = 0;
public static readonly ElementaryFormulaSimplification Object = new ElementaryFormulaSimplification();
private ElementaryFormulaSimplification()///*IFormulaCreatorOperation creator)
{
//this.creator = creator;
}
#region IFormulaSimplification Members
public override ObjectFormulaTree Simplify(ObjectFormulaTree tree)
{
ObjectFormulaTree t = tree;//.Clone() as ObjectFormulaTree;
t = simplify(t);
t = PolyMult.MultMult(t);
t = simplify(t);
return PolyMult.MultMultReverse(t);
}
#endregion
private ObjectFormulaTree simplify(ObjectFormulaTree tree)
{
ObjectFormulaTree t = tree;
while (true)
{
bool b;
t = PolyMult.simplify(t, out b);
t = PolySum.Simplify(t, ref b);
if (b)
{
break;
}
}
return t;
}
public static bool IsConst(ObjectFormulaTree tree)
{
for (int i = 0; i < tree.Count; i++)
{
if (!IsConst(tree[i]))
{
return false;
}
}
IObjectOperation op = tree.Operation;
if (op is ElementaryRealConstant)
{
return true;
}
return false;
}
public static object GetValue(ObjectFormulaTree tree)
{
if (!IsConst(tree))
{
return null;
}
return tree.Result;
}
public static ObjectFormulaTree SimplifyContstants(ObjectFormulaTree tree, out bool completed)
{
bool comp = true;
completed = true;
if (IsConst(tree))
{
if (tree.Operation is ElementaryRealConstant)
{
completed = true;
return tree;
}
if (tree.ReturnType.Equals(a))
{
ElementaryRealConstant x = new ElementaryRealConstant((double) tree.Result);
completed = false;
return new ObjectFormulaTree(x, new List());
}
}
List l = new List();
for (int i = 0; i < tree.Count; i++)
{
ObjectFormulaTree t = SimplifyContstants(tree[i], out comp);
if (!comp)
{
completed = false;
}
l.Add(t);
}
return new ObjectFormulaTree(tree.Operation, l);
}
}
}
|
No feedbacks found. Be the first to respond and make money from revenue sharing program.
|