private ISpatialCollection <IQuelea> GetNeighborsInVisionAngle(ISpatialCollection <IQuelea> neighborsInSphere)
{
ISpatialCollection <IQuelea> neighborsInVisionAngle = new SpatialCollectionAsList <IQuelea>();
Point3d position = agent.Position;
Vector3d velocity = agent.Velocity;
Plane pl1 = new Plane(position, velocity);
pl1.Rotate(-RS.HALF_PI, pl1.YAxis);
Plane pl2 = pl1;
pl2.Rotate(-RS.HALF_PI, pl1.XAxis);
double halfVisionAngle = agent.VisionAngle * visionAngleMultiplier / 2;
foreach (IQuelea neighbor in neighborsInSphere)
{
Vector3d diff = Util.Vector.Vector2Point(position, neighbor.Position);
double angle1 = Util.Vector.CalcAngle(velocity, diff, pl1);
double angle2 = Util.Vector.CalcAngle(velocity, diff, pl2);
if (Util.Number.DefinitelyLessThan(angle1, halfVisionAngle, Constants.AbsoluteTolerance) &&
Util.Number.DefinitelyLessThan(angle2, halfVisionAngle, Constants.AbsoluteTolerance))
{
neighborsInVisionAngle.Add(neighbor);
}
}
return(neighborsInVisionAngle);
}
public ISpatialCollection <T> GetNeighborsInSphere(T item, double r)
{
ISpatialCollection <T> neighbors = new SpatialCollectionAsList <T>();
IPosition position = (IPosition)item;
foreach (T other in this.spatialObjects)
{
// DK: changed this:
// IPosition otherPosition = (IPosition)other;
// double d = position.getPoint3d().DistanceTo(otherPosition.getPoint3d());
// if (d < r && !Object.ReferenceEquals(item, other))
// {
// neighbors.Add(other);
// }
// to this:
if (!Object.ReferenceEquals(item, other))
{
Point3d p1 = position.GetPoint3D();
Point3d p2 = ((IPosition)other).GetPoint3D();
double dSquared = (Math.Pow(p1.X - p2.X, 2) +
Math.Pow(p1.Y - p2.Y, 2) +
Math.Pow(p1.Z - p2.Z, 2));
if (dSquared < r * r)
{
neighbors.Add(other);
}
}
}
return(neighbors);
}
public ISpatialCollection <T> GetNeighborsInSphere(T item, double r)
{
double rSquared = r * r;
// ISpatialCollection<T> neighbors = new SpatialCollectionAsBinLattice<T>();
IPosition position = (IPosition)item;
//LinkedList<T> possibleNeighbors = getBin(item);
List <T> possibleNeighbors = GetBins(item, r);
ISpatialCollection <T> neighbors = new SpatialCollectionAsList <T>();
foreach (T other in possibleNeighbors)
{
if (!Object.ReferenceEquals(item, other))
{
Point3d p1 = position.GetPoint3D();
Point3d p2 = ((IPosition)other).GetPoint3D();
if (Util.Point.DistanceSquared(p1, p2) < rSquared)
{
neighbors.Add(other);
}
}
}
return(neighbors);
}
public SpatialCollectionAsList(SpatialCollectionAsList <T> collection)
{
this.spatialObjects = collection.spatialObjects;
}
