public static GaTreeMultivectorNode SetLeftChildToInternalNode(this IGaTreeMultivectorNode mv)
{
if (ReferenceEquals(mv, null))
{
return(null);
}
var rootNode = mv as GaTreeMultivector;
if (!ReferenceEquals(rootNode, null))
{
var childNode = new GaTreeMultivectorNode();
rootNode.LeftChild = childNode;
return(childNode);
}
var internalNode = mv as GaTreeMultivectorNode;
if (!ReferenceEquals(internalNode, null))
{
var childNode = new GaTreeMultivectorNode();
internalNode.LeftChild = childNode;
return(childNode);
}
return(null);
}
public static GaTreeMultivectorLeaf SetRightChildToLeafNode(this IGaTreeMultivectorNode mv, MathematicaScalar value)
{
if (ReferenceEquals(mv, null))
{
return(null);
}
var rootNode = mv as GaTreeMultivector;
if (!ReferenceEquals(rootNode, null))
{
var childNode = new GaTreeMultivectorLeaf(value);
rootNode.RightChild = childNode;
return(childNode);
}
var internalNode = mv as GaTreeMultivectorNode;
if (!ReferenceEquals(internalNode, null))
{
var childNode = new GaTreeMultivectorLeaf(value);
internalNode.RightChild = childNode;
return(childNode);
}
return(null);
}
public Expr this[int id]
{
get
{
IGaTreeMultivectorNode node = this;
for (var i = 0; i < VSpaceDimension - 1; i++)
{
node = node.GetChild(id);
if (ReferenceEquals(node, null))
{
return(Expr.INT_ZERO);
}
id >>= 1;
}
var leafNode = node.GetChild(id) as GaTreeMultivectorLeaf;
return(ReferenceEquals(leafNode, null)
? Expr.INT_ZERO
: leafNode.Value.Expression);
}
set
{
IGaTreeMultivectorNode node = this;
for (var i = 0; i < VSpaceDimension - 1; i++)
{
node = node.GetOrSetChildToInternalNode(id);
Debug.Assert(!ReferenceEquals(node, null));
id >>= 1;
}
var leafNode = node.GetOrSetChildToLeafNode(id, value.ToMathematicaScalar());
Debug.Assert(!ReferenceEquals(leafNode, null));
}
}
public static IGaTreeMultivectorNode GetRightChild(this IGaTreeMultivectorNode mv)
{
if (ReferenceEquals(mv, null))
{
return(null);
}
var rootNode = mv as GaTreeMultivector;
if (!ReferenceEquals(rootNode, null))
{
return(rootNode.RightChild);
}
var internalNode = mv as GaTreeMultivectorNode;
if (!ReferenceEquals(internalNode, null))
{
return(internalNode.RightChild);
}
return(null);
}
public static IGaTreeMultivectorNode GetChild(this IGaTreeMultivectorNode mv, int index)
{
return((index & 1) == 0
? mv.GetRightChild()
: mv.GetLeftChild());
}
public static GaTreeMultivectorLeaf GetOrSetChildToLeafNode(this IGaTreeMultivectorNode mv, int index, MathematicaScalar value)
{
return((index & 1) == 0
? mv.GetOrSetRightChildToLeafNode(value)
: mv.GetOrSetLeftChildToLeafNode(value));
}
public static GaTreeMultivectorNode GetOrSetChildToInternalNode(this IGaTreeMultivectorNode mv, int index)
{
return((index & 1) == 0
? mv.GetOrSetRightChildToInternalNode()
: mv.GetOrSetLeftChildToInternalNode());
}
public static GaTreeMultivectorLeaf AsLeafNode(this IGaTreeMultivectorNode mv)
{
return(mv as GaTreeMultivectorLeaf);
}
public static GaTreeMultivectorNode AsInternalNode(this IGaTreeMultivectorNode mv)
{
return(mv as GaTreeMultivectorNode);
}
public static GaTreeMultivector AsRootNode(this IGaTreeMultivectorNode mv)
{
return(mv as GaTreeMultivector);
}
