internal static void Compare <T>(
double x,
double y,
T expected,
XYPointWValue <T> point)
{
Assert.AreEqual(x, point.X);
Assert.AreEqual(y, point.Y);
Assert.AreEqual(expected, point.Value);
}
private static int SetOnLeaf(
PointRegionQuadTreeNodeLeaf<object> leaf,
double x,
double y,
XYPointWValue<TL> pointXY)
{
if (pointXY.X != x && pointXY.Y != y) {
throw new IllegalStateException();
}
return SetOnLeaf(leaf, x, y, pointXY.Value);
}
private static void AddToBranch(
PointRegionQuadTreeNodeBranch branch,
double x,
double y,
XYPointWValue<TL> value,
PointRegionQuadTree<object> tree)
{
var quadrant = branch.Bb.GetQuadrant(x, y);
if (quadrant == QuadrantEnum.NW) {
branch.Nw = SetOnNode(x, y, value, branch.Nw, tree);
}
else if (quadrant == QuadrantEnum.NE) {
branch.Ne = SetOnNode(x, y, value, branch.Ne, tree);
}
else if (quadrant == QuadrantEnum.SW) {
branch.Sw = SetOnNode(x, y, value, branch.Sw, tree);
}
else {
branch.Se = SetOnNode(x, y, value, branch.Se, tree);
}
}
private static void SubdividePoint(
XYPointWValue<TL> point,
PointRegionQuadTreeNodeBranch branch,
PointRegionQuadTree<object> tree)
{
var x = point.X;
var y = point.Y;
var quadrant = branch.Bb.GetQuadrant(x, y);
if (quadrant == QuadrantEnum.NW) {
branch.Nw = SetOnNode(x, y, point, branch.Nw, tree);
}
else if (quadrant == QuadrantEnum.NE) {
branch.Ne = SetOnNode(x, y, point, branch.Ne, tree);
}
else if (quadrant == QuadrantEnum.SW) {
branch.Sw = SetOnNode(x, y, point, branch.Sw, tree);
}
else {
branch.Se = SetOnNode(x, y, point, branch.Se, tree);
}
}
private static PointRegionQuadTreeNode SetOnNode(
double x,
double y,
XYPointWValue<TL> value,
PointRegionQuadTreeNode node,
PointRegionQuadTree<object> tree)
{
if (node is PointRegionQuadTreeNodeLeaf<object> leaf) {
var count = SetOnLeaf(leaf, x, y, value);
leaf.IncCount(count);
if (leaf.Count <= tree.LeafCapacity || node.Level >= tree.MaxTreeHeight) {
return leaf;
}
node = Subdivide(leaf, tree);
}
var branch = (PointRegionQuadTreeNodeBranch) node;
AddToBranch(branch, x, y, value, tree);
return node;
}