public Point[] GetTranslations()
{
var nodes = _moveableRectanglesTree.GetAllLeaves();
Point[] translation = new Point[_moveableRectanglesTree.Count];
foreach (var n in nodes)
{
translation[n.rectId] = n.rect.Center - oldPositionsMoveable[n.rectId];
}
return(translation);
}
public void RTreeQuery_PointIntersectionTest()
{
for (int seed = 0; seed < 1; ++seed)
{
int n = 100000;
var points = new Point[n];
var rand = new Random(seed);
double scale = 1000;
for (int i = 0; i < n; ++i)
{
points[i] = new Point(rand.NextDouble() * scale, rand.NextDouble() * scale);
}
var bsptree = new RTree<Point>(
from p in points
select new KeyValuePair<Rectangle, Point>(new Rectangle(p), p));
Assert.AreEqual(bsptree.GetAllLeaves().Count(), n);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(0, 0, scale, scale)).Count(), n);
int intersecting = 0;
for (int i = 0; i < 10000; ++i)
{
double s = scale / 100;
var query = new Rectangle(rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s);
if (bsptree.IsIntersecting(query))
{
++intersecting;
}
}
System.Console.WriteLine(intersecting);
}
}
public void RTreeQuery_PointIntersectionTest()
{
for (int seed = 0; seed < 1; ++seed)
{
int n = 100000;
var points = new Point[n];
var rand = new Random(seed);
double scale = 1000;
for (int i = 0; i < n; ++i)
{
points[i] = new Point(rand.NextDouble() * scale, rand.NextDouble() * scale);
}
var bsptree = new RTree <Point>(
from p in points
select new KeyValuePair <Rectangle, Point>(new Rectangle(p), p));
Assert.AreEqual(bsptree.GetAllLeaves().Count(), n);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(0, 0, scale, scale)).Count(), n);
int intersecting = 0;
for (int i = 0; i < 10000; ++i)
{
double s = scale / 100;
var query = new Rectangle(rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s);
if (bsptree.IsIntersecting(query))
{
++intersecting;
}
}
System.Diagnostics.Debug.WriteLine(intersecting);
}
}
public void RTreeQuery_Rectangles()
{
const int Seeds = 100;
const int RectCount = 1000;
const int RegionSize = 1000;
const int RectSize = 10;
for (int seed = 0; seed < Seeds; ++seed)
{
var rects = new Rectangle[RectCount];
var rand = new Random(seed);
for (int i = 0; i < RectCount; ++i)
{
rects[i] = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), new Point(RectSize, RectSize));
}
var bsptree = new RTree <Rectangle>(
from r in rects
select new KeyValuePair <Rectangle, Rectangle>(r, r));
Assert.AreEqual(bsptree.GetAllLeaves().Count(), RectCount);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(0, 0, RegionSize + RectSize, RegionSize + RectSize)).Count(), RectCount);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0);
var query = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize));
var checkList = (from r in rects
where query.Intersects(r)
select r).ToList();
var checkSet = new HashSet <Rectangle>(checkList);
var result = bsptree.GetAllIntersecting(query).ToList();
Assert.AreEqual(result.Count, checkList.Count, "result and check are different sizes: seed={0}", seed);
foreach (var r in result)
{
Assert.IsTrue(query.Intersects(r), "rect doesn't intersect query: seed={0}, rect={1}, query={2}", seed, r, query);
Assert.IsTrue(checkSet.Contains(r), "check set does not contain rect: seed={0}", seed);
}
}
}
void DrawFixedRectsSegments(RTree <Rectangle> fixedRectanglesTree,
RTree <SymmetricSegment> fixedSegmentsTree)
{
foreach (var fr in fixedRectanglesTree.GetAllLeaves())
{
DrawRectDilated(fr);
}
foreach (var seg in fixedSegmentsTree.GetAllLeaves())
{
DrawLineSegDilated(seg.A, seg.B);
}
}
public void RTreeQuery_IncrementalRectangles()
{
const int RectsCount = 1000;
const int RegionSize = 1000;
const int RectSize = 10;
for (int seed = 0; seed < 1; ++seed)
{
var rects = new Rectangle[RectsCount];
var rand = new Random(seed);
for (int i = 0; i < RectsCount; ++i)
{
rects[i] = new Rectangle(new Point(rand.Next(RegionSize), rand.Next(RegionSize)));
}
// create rTree with just the first rectangle
var l = new List <KeyValuePair <Rectangle, Rectangle> >
{
new KeyValuePair <Rectangle, Rectangle>(rects[0], rects[0])
};
var queryTree = new RTree <Rectangle>(l);
// add remaining rectangles 10 at a time
for (int a = 1, b = 10; b < RectsCount; a = b, b += 10)
{
for (int i = a; i < b; ++i)
{
queryTree.Add(rects[i], rects[i]);
}
Assert.AreEqual(queryTree.GetAllLeaves().Count(), b, "did we lose leaves?");
Assert.AreEqual(queryTree.GetAllIntersecting(
new Rectangle(0, 0, RegionSize + RectSize, RegionSize + RectSize)).Count(), b,
"are all leaves inside the max range?");
Assert.AreEqual(queryTree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0,
"should be no leaves inside this rectangle!");
var query = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize));
var checkList = (from r in rects.Take(b)
where query.Intersects(r)
select r).ToList();
var checkSet = new HashSet <string>(checkList.Select(r => r.ToString()));
var result = queryTree.GetAllIntersecting(query).ToList();
Assert.AreEqual(result.Count, checkList.Count, "result and check are different sizes: seed={0}", seed);
foreach (var r in result)
{
Assert.IsTrue(query.Intersects(r), "rect doesn't intersect query: seed={0}, rect={1}, query={2}", seed, r, query);
Assert.IsTrue(checkSet.Contains(r.ToString()), "check set does not contain rect: seed={0}", seed);
}
}
}
}
//public void CreateRailTree() {
// RailTree = new RTree<Rail,Point>(
// RailDictionary.Values.Select(rail => new KeyValuePair<Rectangle, Rail>(rail.BoundingBox, rail)));
//}
/// <summary>
/// get endpoint tuples of all rails
/// </summary>
/// <returns></returns>
public List <SymmetricSegment> GetAllRailsEndpoints()
{
var endpts = new List <SymmetricSegment>();
Point p0, p1;
foreach (var rail in _railTree.GetAllLeaves())
{
if (rail.GetStartEnd(out p0, out p1))
{
endpts.Add(new SymmetricSegment(p0, p1));
}
}
return(endpts);
}
public void RTreeQuery_RandomPoints()
{
var bspQueryTime = new Stopwatch();
var checkQueryTime = new Stopwatch();
const int Seeds = 5;
const int Repeats = 5;
for (int seed = 0; seed < Seeds; ++seed)
{
int n = 100000;
var points = new Point[n];
var rand = new Random(seed);
double scale = 1000;
for (int i = 0; i < n; ++i)
{
points[i] = new Point(rand.NextDouble() * scale, rand.NextDouble() * scale);
}
var queryTree = new RTree <Point>(
from p in points
select new KeyValuePair <Rectangle, Point>(new Rectangle(p), p));
Assert.AreEqual(queryTree.GetAllLeaves().Count(), n);
Assert.AreEqual(queryTree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0);
Assert.AreEqual(queryTree.GetAllIntersecting(new Rectangle(0, 0, scale, scale)).Count(), n);
for (int i = 0; i < Repeats; ++i)
{
double s = scale / 100;
var query = new Rectangle(rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s);
bspQueryTime.Start();
var result = queryTree.GetAllIntersecting(query).ToList();
bspQueryTime.Stop();
checkQueryTime.Start();
var checkList = (from p in points
where query.Contains(p)
select p).ToList();
checkQueryTime.Stop();
var checkSet = new HashSet <Point>(checkList);
Assert.AreEqual(result.Count, checkList.Count);
foreach (var r in result)
{
Assert.IsTrue(query.Contains(r));
Assert.IsTrue(checkSet.Contains(r));
}
}
Assert.IsTrue(bspQueryTime.ElapsedMilliseconds < checkQueryTime.ElapsedMilliseconds);
}
}
internal IEnumerable <Point> Calculate()
{
if (BoundingBox.Width == 0)
{
FillBoundingBoxWithSites();
}
Cdt cdt = new Cdt(cites, null, null);
cdt.Run();
var triangles = cdt.GetTriangles();
foreach (var triangle in triangles)
{
AddVoronoiCite(triangle);
}
return(voronoiSiteTree.GetAllLeaves());
}
public void RTreeQuery_IncrementalRectangles()
{
const int RectsCount = 1000;
const int RegionSize = 1000;
const int RectSize = 10;
var rects = new Rectangle[RectsCount];
var rand = new Random(0);
for (int i = 0; i < RectsCount; ++i)
{
rects[i] = new Rectangle(new Point(rand.Next(RegionSize), rand.Next(RegionSize)));
}
// create rTree with just the first rectangle
var rtree = new RTree <Rectangle, Point>();
rtree.Add(rects[0], rects[0]);
// add remaining rectangles 10 at a time
for (int a = 1, b = 10; b < RectsCount; a = b, b += 10)
{
for (int i = a; i < b; ++i)
{
rtree.Add(rects[i], rects[i]);
}
var allLeaves = rtree.GetAllLeaves().ToArray();
Assert.AreEqual(allLeaves.Length, b, "did we lose leaves?");
Assert.AreEqual(rtree.GetAllIntersecting(
new Rectangle(0, 0, RegionSize + RectSize, RegionSize + RectSize)).Count(), b,
"are all leaves inside the max range?");
Assert.AreEqual(rtree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0,
"should be no leaves inside this rectangle!");
var rect = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize));
var checkList = (from r in rects.Take(b)
where rect.Intersects(r)
select r).ToList();
var checkSet = new HashSet <string>(checkList.Select(r => r.ToString()));
var result = rtree.GetAllIntersecting(rect).ToList();
Assert.AreEqual(result.Count, checkList.Count, "result and check are different sizes");
foreach (var r in result)
{
Assert.IsTrue(rect.Intersects(r), "rect doesn't intersect query: rect={1}, query={2}", r, rect);
Assert.IsTrue(checkSet.Contains(r.ToString()), "check set does not contain rect");
}
}
}
public void RTreeQuery_RandomPoints()
{
var bspQueryTime = new Stopwatch();
var checkQueryTime = new Stopwatch();
const int Seeds = 5;
const int Repeats = 5;
for (int seed = 0; seed < Seeds; ++seed)
{
int n = 100000;
var points = new Point[n];
var rand = new Random(seed);
double scale = 1000;
for (int i = 0; i < n; ++i)
{
points[i] = new Point(rand.NextDouble() * scale, rand.NextDouble() * scale);
}
var queryTree = new RTree<Point>(
from p in points
select new KeyValuePair<Rectangle, Point>(new Rectangle(p), p));
Assert.AreEqual(queryTree.GetAllLeaves().Count(), n);
Assert.AreEqual(queryTree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0);
Assert.AreEqual(queryTree.GetAllIntersecting(new Rectangle(0, 0, scale, scale)).Count(), n);
for (int i = 0; i < Repeats; ++i)
{
double s = scale / 100;
var query = new Rectangle(rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s, rand.NextDouble() * s);
bspQueryTime.Start();
var result = queryTree.GetAllIntersecting(query).ToList();
bspQueryTime.Stop();
checkQueryTime.Start();
var checkList = (from p in points
where query.Contains(p)
select p).ToList();
checkQueryTime.Stop();
var checkSet = new HashSet<Point>(checkList);
Assert.AreEqual(result.Count, checkList.Count);
foreach (var r in result)
{
Assert.IsTrue(query.Contains(r));
Assert.IsTrue(checkSet.Contains(r));
}
}
Assert.IsTrue(bspQueryTime.ElapsedMilliseconds < checkQueryTime.ElapsedMilliseconds);
}
}
public void RTreeQuery_IncrementalRectangles()
{
const int RectsCount = 1000;
const int RegionSize = 1000;
const int RectSize = 10;
for (int seed = 0; seed < 1; ++seed)
{
var rects = new Rectangle[RectsCount];
var rand = new Random(seed);
for (int i = 0; i < RectsCount; ++i)
{
rects[i] = new Rectangle(new Point(rand.Next(RegionSize), rand.Next(RegionSize)));
}
// create rTree with just the first rectangle
var l = new List<KeyValuePair<Rectangle, Rectangle>>
{
new KeyValuePair<Rectangle, Rectangle>(rects[0], rects[0])
};
var queryTree = new RTree<Rectangle>(l);
// add remaining rectangles 10 at a time
for (int a = 1, b = 10; b < RectsCount; a = b, b += 10)
{
for (int i = a; i < b; ++i)
{
queryTree.Add(rects[i], rects[i]);
}
Assert.AreEqual(queryTree.GetAllLeaves().Count(), b, "did we lose leaves?");
Assert.AreEqual(queryTree.GetAllIntersecting(
new Rectangle(0, 0, RegionSize + RectSize, RegionSize + RectSize)).Count(), b,
"are all leaves inside the max range?");
Assert.AreEqual(queryTree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0,
"should be no leaves inside this rectangle!");
var query = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize));
var checkList = (from r in rects.Take(b)
where query.Intersects(r)
select r).ToList();
var checkSet = new HashSet<Rectangle>(checkList);
var result = queryTree.GetAllIntersecting(query).ToList();
Assert.AreEqual(result.Count, checkList.Count, "result and check are different sizes: seed={0}", seed);
foreach (var r in result)
{
Assert.IsTrue(query.Intersects(r), "rect doesn't intersect query: seed={0}, rect={1}, query={2}", seed, r, query);
Assert.IsTrue(checkSet.Contains(r), "check set does not contain rect: seed={0}", seed);
}
}
}
}
public void RTreeQuery_Rectangles()
{
const int Seeds = 100;
const int RectCount = 1000;
const int RegionSize = 1000;
const int RectSize = 10;
for (int seed = 0; seed < Seeds; ++seed)
{
var rects = new Rectangle[RectCount];
var rand = new Random(seed);
for (int i = 0; i < RectCount; ++i)
{
rects[i] = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), new Point(RectSize, RectSize));
}
var bsptree = new RTree<Rectangle>(
from r in rects
select new KeyValuePair<Rectangle, Rectangle>(r, r));
Assert.AreEqual(bsptree.GetAllLeaves().Count(), RectCount);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(0, 0, RegionSize + RectSize, RegionSize + RectSize)).Count(), RectCount);
Assert.AreEqual(bsptree.GetAllIntersecting(new Rectangle(-2, -2, -1, -1)).Count(), 0);
var query = new Rectangle(rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize), rand.Next(RegionSize));
var checkList = (from r in rects
where query.Intersects(r)
select r).ToList();
var checkSet = new HashSet<Rectangle>(checkList);
var result = bsptree.GetAllIntersecting(query).ToList();
Assert.AreEqual(result.Count, checkList.Count, "result and check are different sizes: seed={0}", seed);
foreach (var r in result)
{
Assert.IsTrue(query.Intersects(r), "rect doesn't intersect query: seed={0}, rect={1}, query={2}", seed, r, query);
Assert.IsTrue(checkSet.Contains(r), "check set does not contain rect: seed={0}", seed);
}
}
}
void DrawFixedRectsSegments(RTree<Rectangle> fixedRectanglesTree,
RTree<SymmetricSegment> fixedSegmentsTree) {
foreach (var fr in fixedRectanglesTree.GetAllLeaves())
DrawRectDilated(fr);
foreach (var seg in fixedSegmentsTree.GetAllLeaves()) {
DrawLineSegDilated(seg.A, seg.B);
}
}
