/// <summary>
/// Calculates the position
/// </summary>
/// <param name="BlindNode">The BlindNode to be positioned</param>
/// <param name="filterMethod">The filter to use on the RSS values</param>
/// <param name="RangingMethod">The ranging method</param>
/// <param name="multihop">use multihop or not</param>
/// <returns>The position of the blind node</returns>
public static Point CalculatePosition(Node BlindNode, Node.FilterMethod filterMethod, Node.RangingMethod rangingMethod, bool multihop)
{
List <Point> intersectionPoints = new List <Point>();
Point position = new Point();
List <string> StatusCircles = new List <string>();
List <int> ListOfCounts = new List <int>();
int count;
bool AllCirclesIntersected = false;
foreach (AnchorNode an in BlindNode.Anchors)
{
an.fRSS = filterMethod(an.RSS);
an.range = rangingMethod(an.fRSS);
}
if (!multihop)
{
if (BlindNode.Anchors.Count >= 3)
{
// This lus will continue with expanding and narrowing the range of the anchors
// until all circles cut in one or two points
while (!AllCirclesIntersected)
{
for (int i = 0; i < BlindNode.Anchors.Count; i++)
{
count = 0;
for (int j = 0; j < BlindNode.Anchors.Count; j++)
{
StatusCircles.Add(GeometryHelper.InOrOut(BlindNode.Anchors[i].posx, BlindNode.Anchors[i].posy, BlindNode.Anchors[i].range, BlindNode.Anchors[j].posx, BlindNode.Anchors[j].posy, BlindNode.Anchors[j].range));
}
if (StatusCircles.Contains("Overlap") && !(StatusCircles.Contains("In") || StatusCircles.Contains("Separated")))
{
BlindNode.Anchors[i].range *= 0.9;
}
else if ((StatusCircles.Contains("In") || StatusCircles.Contains("Separated")) && !StatusCircles.Contains("Overlap"))
{
BlindNode.Anchors[i].range *= 1.1;
}
StatusCircles.Clear();
}
// Check if all nodes intersect
ListOfCounts.Clear();
for (int i = 0; i < BlindNode.Anchors.Count; i++)
{
count = 0;
for (int j = 0; j < BlindNode.Anchors.Count; j++)
{
if (GeometryHelper.BelongTo(BlindNode.Anchors[i].posx, BlindNode.Anchors[i].posy, BlindNode.Anchors[i].range, BlindNode.Anchors[j].posx, BlindNode.Anchors[j].posy, BlindNode.Anchors[j].range))
{
count++;
}
}
ListOfCounts.Add(count);
}
if (ListOfCounts.Average() == BlindNode.Anchors.Count)
{
AllCirclesIntersected = true;
}
}
// Determine crossings
for (int i = 0; i < BlindNode.Anchors.Count - 1; i++)
{
for (int j = i + 1; j < BlindNode.Anchors.Count; j++)
{
//returns 0, 1 or 2 Pointss
List <Point> crossingPoints = GeometryHelper.Intersect(BlindNode.Anchors[i].posx, BlindNode.Anchors[i].posy, BlindNode.Anchors[i].range, BlindNode.Anchors[j].posx, BlindNode.Anchors[j].posy, BlindNode.Anchors[j].range);
if (crossingPoints != null)
{
foreach (Point crossing in crossingPoints)
{
intersectionPoints.Add(crossing);
}
}
}
}
// Calculate BN position with clustering
if (intersectionPoints.Count >= 3)
{
position = Cluster(intersectionPoints, BlindNode.Anchors.Count);
}
else
{
position = null;
}
}
else
{
position = null;
}
}
return(position);
}
/// <summary>
/// Calculates the position
/// </summary>
/// <param name="BlindNode">The BlindNode to be positioned</param>
/// <param name="filterMethod">The filter to use on the RSS values</param>
/// <param name="RangingMethod">The ranging method</param>
/// <param name="multihop">use multihop or not</param>
/// <returns>The position of the blind node</returns>
public static Point CalculatePosition(Node BlindNode, Node.FilterMethod filterMethod, Node.RangingMethod rangingMethod, bool multihop)
{
List <Point> intersectionPoints = new List <Point>();
List <AnchorNode> AllAnchors = new List <AnchorNode>();
List <IntersectedAnchors> anchors = new List <IntersectedAnchors>();
IntersectedAnchors anchor = new IntersectedAnchors();
List <int> CountOfCircles = new List <int>();
Point center = new Point();
int numberOfCircles = 0;
foreach (AnchorNode AN in BlindNode.Anchors)
{
AN.fRSS = filterMethod(AN.RSS);
AN.range = rangingMethod(AN.fRSS);
}
foreach (AnchorNode VAN in BlindNode.VirtualAnchors)
{
VAN.fRSS = filterMethod(VAN.RSS);
VAN.range = rangingMethod(VAN.fRSS);
}
if (!multihop)
{
if (BlindNode.Anchors.Count >= 3)
{
for (int i = 0; i < BlindNode.Anchors.Count - 1; i++)
{
for (int j = i + 1; j < BlindNode.Anchors.Count; j++)
{
List <Point> crossingPoints = GeometryHelper.Intersect(BlindNode.Anchors[i].posx, BlindNode.Anchors[i].posy, BlindNode.Anchors[i].range, BlindNode.Anchors[j].posx, BlindNode.Anchors[j].posy, BlindNode.Anchors[j].range);
if (crossingPoints != null)
{
foreach (Point crossing in crossingPoints)
{
intersectionPoints.Add(crossing);
}
}
}
}
if (intersectionPoints.Count >= 3)
{
center = Cluster(intersectionPoints, BlindNode.Anchors.Count);
}
else
{
center = null;
}
}
else
{
center = null;
}
}
else
{
for (int i = 0; i < BlindNode.Anchors.Count - 1; i++)
{
for (int j = i + 1; j < BlindNode.Anchors.Count; j++)
{
List <Point> crossingPoints = GeometryHelper.Intersect(BlindNode.Anchors[i].posx, BlindNode.Anchors[i].posy, BlindNode.Anchors[i].range, BlindNode.Anchors[j].posx, BlindNode.Anchors[j].posy, BlindNode.Anchors[j].range);
if (crossingPoints != null)
{
foreach (Point crossing in crossingPoints)
{
intersectionPoints.Add(crossing);
}
}
}
}
if (intersectionPoints.Count < 3)
{
intersectionPoints.Clear();
foreach (AnchorNode an in BlindNode.Anchors)
{
AllAnchors.Add(an);
}
foreach (AnchorNode van in BlindNode.VirtualAnchors)
{
AllAnchors.Add(van);
}
for (int i = 0; i < AllAnchors.Count - 1; i++)
{
for (int j = i + 1; j < AllAnchors.Count; j++)
{
List <Point> crossingPoints = GeometryHelper.Intersect(AllAnchors[i].posx, AllAnchors[i].posy, AllAnchors[i].range, AllAnchors[j].posx, AllAnchors[j].posy, AllAnchors[j].range);
if (crossingPoints != null)
{
foreach (Point crossing in crossingPoints)
{
intersectionPoints.Add(crossing);
}
}
}
}
for (int i = 0; i < AllAnchors.Count; i++)
{
numberOfCircles = 0;
for (int j = 0; j < AllAnchors.Count; j++)
{
if (GeometryHelper.BelongTo(AllAnchors[i].posx, AllAnchors[i].posy, AllAnchors[i].range, AllAnchors[j].posx, AllAnchors[j].posy, AllAnchors[j].range))
{
numberOfCircles++;
}
}
CountOfCircles.Add(numberOfCircles);
}
List <int> anchorss = CountOfCircles.FindAll(number => number == 1);
if (intersectionPoints.Count >= 3)
{
center = Cluster(intersectionPoints, (AllAnchors.Count - anchorss.Count));
}
else
{
center = null;
}
}
else
{
center = Cluster(intersectionPoints, BlindNode.Anchors.Count);
}
}
return(center);
}
