/// <summary>
/// Returns all arcs inside the given bounding box.
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public KeyValuePair <uint, KeyValuePair <uint, TEdgeData> >[] GetEdges(
GeoCoordinateBox box)
{
if (_vertexIndex == null)
{
// rebuild on-the-fly.
this.RebuildVertexIndex();
}
// get all the vertices in the given box.
var vertices = _vertexIndex.GetInside(
box);
// loop over all vertices and get the arcs.
var arcs = new List <KeyValuePair <uint, KeyValuePair <uint, TEdgeData> > >();
foreach (uint vertex in vertices)
{
var localArcs = this.GetEdges(vertex);
foreach (var localArc in localArcs)
{
arcs.Add(new KeyValuePair <uint, KeyValuePair <uint, TEdgeData> >(
vertex, localArc));
}
}
return(arcs.ToArray());
}
/// <summary>
/// Try and find matching lines.
/// </summary>
/// <param name="lines"></param>
/// <param name="points"></param>
/// <returns></returns>
private MatchPosition FindMatch(ILocatedObjectIndex <PointF2D, Scene2D.ScenePoints> linesIndex, Dictionary <Scene2D.ScenePoints, Scene2DStylesSet> lines,
double[] x, double[] y, Scene2DStylesSet style, float epsilon, out Scene2D.ScenePoints found)
{
// build box.
var box = new BoxF2D(x, y);
box = box.ResizeWith(epsilon * 1.1);
// get all geometries in this box.
var potentialMatches = linesIndex.GetInside(box);
// find a match in the potential matches list.
PointF2D first = new PointF2D(x[0], y[0]);
PointF2D last = new PointF2D(x[x.Length - 1], y[y.Length - 1]);
MatchPosition position = MatchPosition.None;
found = null;
foreach (var line in potentialMatches)
{
// check first.
PointF2D potentialFirst = new PointF2D(line.X[0], line.Y[0]);
PointF2D potentialLast = new PointF2D(line.X[line.X.Length - 1], line.Y[line.Y.Length - 1]);
if (first.Distance(potentialFirst) < epsilon)
{
found = line;
position = MatchPosition.FirstFirst;
}
else if (last.Distance(potentialFirst) < epsilon)
{
found = line;
position = MatchPosition.LastFirst;
}
else if (first.Distance(potentialLast) < epsilon)
{
found = line;
position = MatchPosition.FirstLast;
}
else if (last.Distance(potentialLast) < epsilon)
{
found = line;
position = MatchPosition.LastLast;
}
Scene2DStylesSet styleValue;
if (position != MatchPosition.None && lines.TryGetValue(line, out styleValue) && styleValue.Equals(style))
{
break;
}
else
{
position = MatchPosition.None;
found = null;
}
}
return(position);
}
/// <summary>
/// Returns all edges inside the given boundingbox.
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public KeyValuePair <uint, KeyValuePair <uint, CHEdgeData> >[] GetArcs(
GeoCoordinateBox box)
{
// load the missing tiles.
this.LoadMissingTile(box);
// get all the vertices in the given box.
IEnumerable <uint> vertices = _vertexIndex.GetInside(
box);
// loop over all vertices and get the arcs.
var arcs = new List <KeyValuePair <uint, KeyValuePair <uint, CHEdgeData> > >();
foreach (uint vertexId in vertices)
{
var location = _coordinates[(int)vertexId];
if (location != null)
{
// load tile if needed.
this.LoadMissingTile(new GeoCoordinate(
location.Latitude, location.Longitude));
// get the arcs and return.
if (_vertices.Length > vertexId)
{
var vertex = _vertices[(int)vertexId];
if (vertex != null &&
vertex.Arcs != null)
{
KeyValuePair <uint, CHEdgeData>[] localArcs = vertex.Arcs;
foreach (KeyValuePair <uint, CHEdgeData> localArc in localArcs)
{
arcs.Add(new KeyValuePair <uint, KeyValuePair <uint, CHEdgeData> >(
vertexId, localArc));
}
}
}
}
}
return(arcs.ToArray());
}
/// <summary>
/// Returns all arcs inside the given bounding box.
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public KeyValuePair <uint, KeyValuePair <uint, TEdgeData> >[] GetArcs(
GeoCoordinateBox box)
{
// get all the vertices in the given box.
IEnumerable <uint> vertices = _vertexIndex.GetInside(
box);
// loop over all vertices and get the arcs.
var arcs = new List <KeyValuePair <uint, KeyValuePair <uint, TEdgeData> > >();
foreach (uint vertex in vertices)
{
KeyValuePair <uint, TEdgeData>[] localArcs = this.GetArcs(vertex);
foreach (KeyValuePair <uint, TEdgeData> localArc in localArcs)
{
arcs.Add(new KeyValuePair <uint, KeyValuePair <uint, TEdgeData> >(
vertex, localArc));
}
}
return(arcs.ToArray());
}
/// <summary>
/// Returns all arcs inside the given bounding box.
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public override INeighbourEnumerator <TEdgeData> GetEdges(
GeoCoordinateBox box)
{
if (_vertexIndex == null)
{
// rebuild on-the-fly.
this.RebuildVertexIndex();
}
// get all the vertices in the given box.
var vertices = _vertexIndex.GetInside(
box);
// loop over all vertices and get the arcs.
var neighbours = new List <Tuple <uint, uint, uint, TEdgeData> >();
foreach (uint vertexId in vertices)
{
var localArcs = this.GetEdges(vertexId);
uint arcIdx = 0;
while (localArcs.MoveNext())
{
if (localArcs.EdgeData.RepresentsNeighbourRelations)
{
//if (localArcs.isInverted)
//{
// neighbours.Add(new Tuple<uint, uint, uint, TEdgeData>(vertexId, localArcs.Neighbour, arcIdx,
// (TEdgeData)localArcs.EdgeData.Reverse()));
//}
//else
//{ // not inverted.
neighbours.Add(new Tuple <uint, uint, uint, TEdgeData>(vertexId, localArcs.Neighbour, arcIdx,
localArcs.EdgeData));
//}
}
arcIdx++;
}
}
return(new NeighbourEnumerator(this, neighbours));
}
/// <summary>
/// Returns all edges inside the given boundingbox.
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public INeighbourEnumerator <LiveEdge> GetEdges(
GeoCoordinateBox box)
{
// load the missing tiles.
this.LoadMissingTile(box);
// get all the vertices in the given box.
var vertices = _vertexIndex.GetInside(box);
// loop over all vertices and get the arcs.
var neighbours = new List <Tuple <uint, uint, uint, LiveEdge> >();
foreach (uint vertexId in vertices)
{
var location = _coordinates[(int)vertexId];
if (location != null)
{
//// load tile if needed.
//this.LoadMissingTile(new GeoCoordinate(
// location.Latitude, location.Longitude));
// get the arcs and return.
if (_vertices.Length > vertexId)
{
var vertex = _vertices[(int)vertexId];
if (vertex != null &&
vertex.Arcs != null)
{
var localArcs = vertex.Arcs;
for (int arcIdx = 0; arcIdx < vertex.Arcs.Length; arcIdx++)
{
neighbours.Add(new Tuple <uint, uint, uint, LiveEdge>(vertexId, (uint)arcIdx, localArcs[arcIdx].Item1, localArcs[arcIdx].Item2));
}
}
}
}
}
return(new NeighbourEnumerator(this, neighbours));
}
/// <summary>
/// Tests adding some simple data.
/// </summary>
protected void DoTestSimple()
{
// create the index.
ILocatedObjectIndex <GeoCoordinate, LocatedObjectData> index = this.CreateIndex();
// add the data.
GeoCoordinate point1 = new GeoCoordinate(0, 0);
LocatedObjectData point1_data = new LocatedObjectData()
{
SomeData = point1.ToString()
};
GeoCoordinate point2 = new GeoCoordinate(1, 1);
LocatedObjectData point2_data = new LocatedObjectData()
{
SomeData = point2.ToString()
};
GeoCoordinateBox location_box = new GeoCoordinateBox(
new GeoCoordinate(point1.Latitude - 0.0001, point1.Longitude - 0.0001),
new GeoCoordinate(point1.Latitude + 0.0001, point1.Longitude + 0.0001));
// try and get data from empty index.
// regression test for issue: https://osmsharp.codeplex.com/workitem/1244
IEnumerable <LocatedObjectData> location_box_data = index.GetInside(location_box);
Assert.IsNotNull(location_box_data);
Assert.AreEqual(0, location_box_data.Count());
// try point1.
index.Add(point1, point1_data);
location_box_data = index.GetInside(
location_box);
Assert.IsNotNull(location_box_data);
bool found = false;
foreach (LocatedObjectData location_data in location_box_data)
{
if (location_data.SomeData == point1.ToString())
{
found = true;
}
}
Assert.IsTrue(found, string.Format("Data added at location {0} not found in box {1}!",
point1, location_box));
// try point2.
index.Add(point2, point2_data);
location_box = new GeoCoordinateBox(
new GeoCoordinate(point2.Latitude - 0.0001, point2.Longitude - 0.0001),
new GeoCoordinate(point2.Latitude + 0.0001, point2.Longitude + 0.0001));
location_box_data = index.GetInside(
location_box);
Assert.IsNotNull(location_box_data);
found = false;
foreach (LocatedObjectData location_data in location_box_data)
{
if (location_data.SomeData == point2.ToString())
{
found = true;
}
}
Assert.IsTrue(found, string.Format("Data added at location {0} not found in box {1}!",
point2, location_box));
}
/// <summary>
/// Tests adding a lot of random data.
/// </summary>
/// <param name="count"></param>
public void DoTestAddingRandom(int count)
{
ILocatedObjectIndex <GeoCoordinate, LocatedObjectData> index = this.CreateIndex();
GeoCoordinateBox box = new GeoCoordinateBox(new GeoCoordinate(50, 3), new GeoCoordinate(40, 2));
HashSet <GeoCoordinate> locations = new HashSet <GeoCoordinate>();
Random random = new Random();
while (count > 0)
{
GeoCoordinate location = box.GenerateRandomIn(random);
LocatedObjectData data = new LocatedObjectData()
{
SomeData = location.ToString()
};
locations.Add(location);
index.Add(location, data);
// try immidiately after.
GeoCoordinateBox location_box = new GeoCoordinateBox(
new GeoCoordinate(location.Latitude - 0.0001, location.Longitude - 0.0001),
new GeoCoordinate(location.Latitude + 0.0001, location.Longitude + 0.0001));
IEnumerable <LocatedObjectData> location_box_data = index.GetInside(
location_box);
Assert.IsNotNull(location_box_data);
bool found = false;
foreach (LocatedObjectData location_data in location_box_data)
{
if (location_data.SomeData == location.ToString())
{
found = true;
}
}
Assert.IsTrue(found, string.Format("Data added at location {0} not found in box {1}!",
location, location_box));
count--;
}
foreach (GeoCoordinate location in locations)
{
GeoCoordinateBox location_box = new GeoCoordinateBox(
new GeoCoordinate(location.Latitude - 0.0001, location.Longitude - 0.0001),
new GeoCoordinate(location.Latitude + 0.0001, location.Longitude + 0.0001));
IEnumerable <LocatedObjectData> location_box_data = index.GetInside(
location_box);
Assert.IsNotNull(location_box_data);
bool found = false;
foreach (LocatedObjectData location_data in location_box_data)
{
if (location_data.SomeData == location.ToString())
{
found = true;
}
}
Assert.IsTrue(found, string.Format("Data added at location {0} not found in box {1}!",
location, location_box));
}
}
/// <summary>
/// Try and find matching lines.
/// </summary>
/// <param name="lines"></param>
/// <param name="points"></param>
/// <returns></returns>
private MatchPosition FindMatch(ILocatedObjectIndex<PointF2D, Scene2D.ScenePoints> linesIndex, Dictionary<Scene2D.ScenePoints, Scene2DStylesSet> lines,
double[] x, double[] y, Scene2DStylesSet style, float epsilon, out Scene2D.ScenePoints found)
{
// build box.
var box = new BoxF2D(x, y);
box = box.ResizeWith(epsilon * 1.1);
// get all geometries in this box.
var potentialMatches = linesIndex.GetInside(box);
// find a match in the potential matches list.
PointF2D first = new PointF2D(x[0], y[0]);
PointF2D last = new PointF2D(x[x.Length - 1], y[y.Length - 1]);
MatchPosition position = MatchPosition.None;
found = null;
foreach (var line in potentialMatches)
{
// check first.
PointF2D potentialFirst = new PointF2D(line.X[0], line.Y[0]);
PointF2D potentialLast = new PointF2D(line.X[line.X.Length - 1], line.Y[line.Y.Length - 1]);
if (first.Distance(potentialFirst) < epsilon)
{
found = line;
position = MatchPosition.FirstFirst;
}
else if (last.Distance(potentialFirst) < epsilon)
{
found = line;
position = MatchPosition.LastFirst;
}
else if (first.Distance(potentialLast) < epsilon)
{
found = line;
position = MatchPosition.FirstLast;
}
else if (last.Distance(potentialLast) < epsilon)
{
found = line;
position = MatchPosition.LastLast;
}
Scene2DStylesSet styleValue;
if (position != MatchPosition.None && lines.TryGetValue(line, out styleValue) && styleValue.Equals(style))
{
break;
}
else
{
position = MatchPosition.None;
found = null;
}
}
return position;
}