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);
ISpatialCollection <T> neighbors = new SpatialCollectionAsList <T>();
foreach (T other in possibleNeighbors)
{
// 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();
if (Point.DistanceSquared(p1, p2) < rSquared)
{
neighbors.Add(other);
}
}
}
return(neighbors);
}
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();
if (p1.DistanceSquared(p2) < r * r)
{
neighbors.Add(other);
}
}
}
return(neighbors);
}
public ISpatialCollection <T> getNeighborsInSphere(T item, double r)
{
double rSquared = r * r;
// ISpatialCollection<T> neighbors = new SpatialCollectionAsBinLattice3<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 (Point.DistanceSquared(p1, p2) < rSquared)
{
neighbors.Add(other);
}
}
}
return(neighbors);
}
public static void testSpatialCollection(ISpatialCollection <AgentType> testingAgents)
{
Console.WriteLine("Running test for " + testingAgents.GetType().Name);
ISpatialCollection <AgentType> baseAgents = new SpatialCollectionAsList <AgentType>();
List <AgentType> agents = new List <AgentType>();
Console.WriteLine("Creating Agents.");
for (int i = 0; i < NUM_AGENTS; i++)
{
agents.Add(new AgentType(Random.RandomPoint(min, max)));
}
// DK: For testing/debugging, was using just these 2 points:
// agents.Add(new AgentType(new Point3d(1, 1, 1)));
// agents.Add(new AgentType(new Point3d(1, 1, 1.01)));
Stopwatch stopwatchBase = new Stopwatch();
Stopwatch stopwatchTesting = new Stopwatch();
Console.WriteLine("Getting add time data.");
stopwatchBase.Start();
foreach (AgentType agent in agents)
{
baseAgents.Add(agent);
}
//baseAgents.Add(new AgentType(new Point3d(min.X - 100, 0, 0)));
stopwatchBase.Stop();
stopwatchTesting.Start();
foreach (AgentType agent in agents)
{
testingAgents.Add(agent);
}
//testingAgents.Add(new AgentType(new Point3d(min.X - 100, 0, 0)));
stopwatchTesting.Stop();
TimeSpan baseAddTime = stopwatchBase.Elapsed;
TimeSpan testAddTime = stopwatchTesting.Elapsed;
Console.WriteLine("Base time elapsed: {0}", baseAddTime);
Console.WriteLine("Testing time elapsed: {0}", testAddTime);
Console.WriteLine("Elapsed time ratio: {0}", 1.0 * stopwatchTesting.ElapsedTicks / stopwatchBase.ElapsedTicks);
if (CHECKMATCH) // DK: added so we can easily turn on and off this expensive check
{
Console.WriteLine("Checking neighbors match.");
foreach (AgentType agent in agents)
{
ISpatialCollection <AgentType> testingNeighbors = testingAgents.getNeighborsInSphere(agent, visionRadius);
ISpatialCollection <AgentType> baseNeighbors = baseAgents.getNeighborsInSphere(agent, visionRadius);
foreach (AgentType neighbor in testingNeighbors)
{
if (!listContainsByReferenceEquals(neighbor, baseNeighbors))
{
Console.WriteLine("Mismatch1! testingNeighbors size: " + testingNeighbors.Count + " baseNeighbors size: " + baseNeighbors.Count);
Console.ReadLine();
//throw new Exception();
}
}
foreach (AgentType neighbor in baseNeighbors)
{
if (!listContainsByReferenceEquals(neighbor, testingNeighbors))
{
Console.WriteLine("Mismatch2! testingNeighbors size: " + testingNeighbors.Count + " baseNeighbors size: " + baseNeighbors.Count);
Console.ReadLine();
//throw new Exception();
}
}
}
}
Console.WriteLine("Getting getNeighbors timing data.");
stopwatchBase.Restart();
foreach (AgentType agent in agents)
{
ISpatialCollection <AgentType> neighbors = baseAgents.getNeighborsInSphere(agent, visionRadius);
}
stopwatchBase.Stop();
TimeSpan baseNeighborsTime = stopwatchBase.Elapsed;
Console.WriteLine("Base time elapsed: {0}", baseNeighborsTime);
stopwatchTesting.Restart();
foreach (AgentType agent in agents)
{
ISpatialCollection <AgentType> neighbors = testingAgents.getNeighborsInSphere(agent, visionRadius);
}
stopwatchTesting.Stop();
TimeSpan testNeighborsTime = stopwatchTesting.Elapsed;
Console.WriteLine("Testing time elapsed: {0}", testNeighborsTime);
Console.WriteLine("Elapsed time ratio: {0}", 1.0 * stopwatchTesting.ElapsedMilliseconds / stopwatchBase.ElapsedMilliseconds);
TimeSpan totalBaseTime = baseAddTime.Add(baseNeighborsTime);
Console.WriteLine("Total base time: {0}", totalBaseTime);
TimeSpan totalTestTime = testAddTime.Add(testNeighborsTime);
Console.WriteLine("Total test time: {0}", totalTestTime);
Console.WriteLine("Total elapsed time ratio: {0}", 1.0 * totalTestTime.TotalMilliseconds / totalBaseTime.TotalMilliseconds);
}
public SpatialCollectionAsList(SpatialCollectionAsList <T> collection)
{
this.spatialObjects = collection.spatialObjects;
}
