private static void AddToBranchWithRect(
MXCIFQuadTreeNodeBranch branch,
double x,
double y,
double width,
double height,
XYWHRectangleWValue value,
MXCIFQuadTree tree)
{
switch (branch.Bb.GetQuadrantApplies(x, y, width, height)) {
case QuadrantAppliesEnum.NW:
branch.Nw = SetOnNodeWithRect(x, y, width, height, value, branch.Nw, tree);
break;
case QuadrantAppliesEnum.NE:
branch.Ne = SetOnNodeWithRect(x, y, width, height, value, branch.Ne, tree);
break;
case QuadrantAppliesEnum.SW:
branch.Sw = SetOnNodeWithRect(x, y, width, height, value, branch.Sw, tree);
break;
case QuadrantAppliesEnum.SE:
branch.Se = SetOnNodeWithRect(x, y, width, height, value, branch.Se, tree);
break;
case QuadrantAppliesEnum.SOME:
var count = SetOnNodeWithRect(branch, x, y, width, height, value);
branch.IncCount(count);
break;
default:
throw new IllegalStateException("Quadrant not applies to any");
}
}
private static void Subdivide(
XYWHRectangleWValue rectangle,
MXCIFQuadTreeNodeBranch branch,
MXCIFQuadTree tree)
{
var x = rectangle.X;
var y = rectangle.Y;
var w = rectangle.W;
var h = rectangle.H;
var quadrant = branch.Bb.GetQuadrantApplies(x, y, w, h);
if (quadrant == QuadrantAppliesEnum.NW) {
branch.Nw = SetOnNodeWithRect(x, y, w, h, rectangle, branch.Nw, tree);
}
else if (quadrant == QuadrantAppliesEnum.NE) {
branch.Ne = SetOnNodeWithRect(x, y, w, h, rectangle, branch.Ne, tree);
}
else if (quadrant == QuadrantAppliesEnum.SW) {
branch.Sw = SetOnNodeWithRect(x, y, w, h, rectangle, branch.Sw, tree);
}
else if (quadrant == QuadrantAppliesEnum.SE) {
branch.Se = SetOnNodeWithRect(x, y, w, h, rectangle, branch.Se, tree);
}
else if (quadrant == QuadrantAppliesEnum.SOME) {
var numAdded = SetOnNodeWithRect(branch, x, y, w, h, rectangle);
branch.IncCount(numAdded);
}
else {
throw new IllegalStateException("No intersection");
}
}
internal static void Compare(
double x,
double y,
double width,
double height,
object expected,
XYWHRectangleWValue rectangle)
{
Assert.AreEqual(x, rectangle.X);
Assert.AreEqual(y, rectangle.Y);
Assert.AreEqual(width, rectangle.W);
Assert.AreEqual(height, rectangle.H);
Assert.AreEqual(expected, rectangle.Value);
}
private static int SetOnNodeWithRect(
MXCIFQuadTreeNode node,
double x,
double y,
double width,
double height,
XYWHRectangleWValue value)
{
if (!value.CoordinateEquals(x, y, width, height)) {
throw new IllegalStateException();
}
return SetOnNode(node, x, y, width, height, value.Value);
}
private static MXCIFQuadTreeNode SetOnNodeWithRect(
double x,
double y,
double width,
double height,
XYWHRectangleWValue value,
MXCIFQuadTreeNode node,
MXCIFQuadTree tree)
{
if (node is MXCIFQuadTreeNodeLeaf leaf) {
var count = SetOnNodeWithRect(leaf, x, y, width, height, value);
leaf.IncCount(count);
if (leaf.Count <= tree.LeafCapacity || node.Level >= tree.MaxTreeHeight) {
return leaf;
}
node = Subdivide(leaf, tree);
}
var branch = (MXCIFQuadTreeNodeBranch) node;
AddToBranchWithRect(branch, x, y, width, height, value, tree);
return node;
}
