/// <summary>
/// Adds all the data in the given node and inside the given bounding box to the given data list.
/// </summary>
/// <param name="data"></param>
/// <param name="node"></param>
/// <param name="box"></param>
public void AddInsideAtNode(IList <TDataType> data, QuadTreeNode node, BoxF2D box)
{
if (box.Overlaps(_bounds))
{ // ok there is an overlap.
if (_depth > 0)
{
if (_minMin != null)
{
_minMin.AddInsideAtNode(data, node, box);
}
if (_minMax != null)
{
_minMax.AddInsideAtNode(data, node, box);
}
if (_maxMin != null)
{
_maxMin.AddInsideAtNode(data, node, box);
}
if (_maxMax != null)
{
_maxMax.AddInsideAtNode(data, node, box);
}
}
else
{
foreach (KeyValuePair <TPointType, TDataType> data_pair in _data)
{
if (box.IsInside(data_pair.Key))
{
data.Add(data_pair.Value);
}
}
}
}
}
public void BoxF2DUnionTest()
{
var testDataList = new List <BoxF2D>();
for (int idx = 0; idx < 10000; idx++)
{
double x1 = OsmSharp.Math.Random.StaticRandomGenerator.Get().Generate(1.0);
double x2 = OsmSharp.Math.Random.StaticRandomGenerator.Get().Generate(1.0);
double y1 = OsmSharp.Math.Random.StaticRandomGenerator.Get().Generate(1.0);
double y2 = OsmSharp.Math.Random.StaticRandomGenerator.Get().Generate(1.0);
testDataList.Add(new BoxF2D(x1, y1, x2, y2));
}
BoxF2D box = testDataList[0];
foreach (BoxF2D rectangleF2D in testDataList)
{
box = box.Union(rectangleF2D);
}
foreach (BoxF2D rectangleF2D in testDataList)
{
box.IsInside(rectangleF2D);
}
}
/// <summary>
/// Returns all data inside the given box.
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public IEnumerable <DataType> GetInside(BoxF2D box)
{
HashSet <DataType> dataset = new HashSet <DataType>();
foreach (KeyValuePair <PointType, DataType> data in _data)
{
if (box.IsInside(data.Key))
{
dataset.Add(data.Value);
}
}
return(dataset);
}
/// <summary>
/// Fills the collection with data.
/// </summary>
/// <param name="node"></param>
/// <param name="box"></param>
/// <param name="result"></param>
private static void Get(Node node, BoxF2D box, HashSet <T> result)
{
if (node.Children is List <Node> )
{
var children = (node.Children as List <Node>);
for (int idx = 0; idx < children.Count; idx++)
{
if (box.Overlaps(node.Boxes[idx]))
{
if (box.IsInside(node.Boxes[idx]))
{ // add all the data from the child.
RTreeMemoryIndex <T> .GetAll(children[idx],
result);
}
else
{ // add the data from the child.
RTreeMemoryIndex <T> .Get(children[idx],
box, result);
}
}
}
}
else
{
var children = (node.Children as List <T>);
if (children != null)
{ // the children are of the data type.
for (int idx = 0; idx < node.Children.Count; idx++)
{
if (node.Boxes[idx].Overlaps(box))
{
result.Add(children[idx]);
}
}
}
}
}
/// <summary>
/// Returns true if the point is inside.
/// </summary>
/// <param name="point"></param>
/// <returns></returns>
internal bool IsInsideBox(TPointType point)
{
return(_bounds.IsInside(point));
}
