public Node FindNodeWhichContains(UV point)
{
Node n = null;
if (IsLeafNode)
{
if (Contains(point))
{
return(this);
}
}
else
{
if (NW.Contains(point))
{
n = NW.FindNodeWhichContains(point);
}
else if (NE.Contains(point))
{
n = NE.FindNodeWhichContains(point);
}
else if (SW.Contains(point))
{
n = SW.FindNodeWhichContains(point);
}
else if (SE.Contains(point))
{
n = SE.FindNodeWhichContains(point);
}
}
return(n);
}