private static Branch CreateBranch(Octree <T> tree, Branch parent, Bounds bounds)
{
// ____________
// / / /
// / 6 / 7 / |
// /_____/_____/ |
// / / / |
// / 4 / 5 / |
// /_____/_____/ |
// | ____________|
// | / / /
// | / 2 / 3 /
// | /_____/_____/
// | / / /
// | / 0 / 1 /
// /_____/_____/
var branch = new Branch(bounds);
branch.Tree = tree;
branch.Parent = parent;
branch.Split = false;
double midX = bounds.MinX + (bounds.MaxX - bounds.MinX) / 2;
double midY = bounds.MinY + (bounds.MaxY - bounds.MinY) / 2;
double midZ = bounds.MinZ + (bounds.MaxZ - bounds.MinZ) / 2;
double[] xPos = new double[] { bounds.MinX, midX, midX, bounds.MaxX };
double[] yPos = new double[] { bounds.MinY, midY, midY, bounds.MaxY };
double[] zPos = new double[] { bounds.MinZ, midZ, midZ, bounds.MaxZ };
branch.ChildBounds[0].Set(xPos[0], yPos[0], zPos[0], xPos[1], yPos[1], zPos[1]);
branch.ChildBounds[1].Set(xPos[2], yPos[0], zPos[0], xPos[3], yPos[1], zPos[1]);
branch.ChildBounds[2].Set(xPos[0], yPos[2], zPos[0], xPos[1], yPos[3], zPos[1]);
branch.ChildBounds[3].Set(xPos[2], yPos[2], zPos[0], xPos[3], yPos[3], zPos[1]);
branch.ChildBounds[4].Set(xPos[0], yPos[0], zPos[2], xPos[1], yPos[1], zPos[3]);
branch.ChildBounds[5].Set(xPos[2], yPos[0], zPos[2], xPos[3], yPos[1], zPos[3]);
branch.ChildBounds[6].Set(xPos[0], yPos[2], zPos[2], xPos[1], yPos[3], zPos[3]);
branch.ChildBounds[7].Set(xPos[2], yPos[2], zPos[2], xPos[3], yPos[3], zPos[3]);
return(branch);
}
private static Branch CreateBranch(Octree <T> tree, Branch parent, AxisAlignedBoundingBox bounds)
{
// ____________
// / / /
// / 6 / 7 / |
// /_____/_____/ |
// / / / |
// / 4 / 5 / |
// /_____/_____/ |
// | ____________|
// | / / /
// | / 2 / 3 /
// | /_____/_____/
// | / / /
// | / 0 / 1 /
// /_____/_____/
var branch = new Branch(bounds);
branch.Tree = tree;
branch.Parent = parent;
branch.Split = false;
double midX = bounds.MinXYZ.X + (bounds.MaxXYZ.X - bounds.MinXYZ.X) / 2;
double midY = bounds.MinXYZ.Y + (bounds.MaxXYZ.Y - bounds.MinXYZ.Y) / 2;
double midZ = bounds.MinXYZ.Z + (bounds.MaxXYZ.Z - bounds.MinXYZ.Z) / 2;
double[] xPos = new double[] { bounds.MinXYZ.X, midX, midX, bounds.MaxXYZ.X };
double[] yPos = new double[] { bounds.MinXYZ.Y, midY, midY, bounds.MaxXYZ.Y };
double[] zPos = new double[] { bounds.MinXYZ.Z, midZ, midZ, bounds.MaxXYZ.Z };
branch.ChildBounds[0] = new AxisAlignedBoundingBox(xPos[0], yPos[0], zPos[0], xPos[1], yPos[1], zPos[1]);
branch.ChildBounds[1] = new AxisAlignedBoundingBox(xPos[2], yPos[0], zPos[0], xPos[3], yPos[1], zPos[1]);
branch.ChildBounds[2] = new AxisAlignedBoundingBox(xPos[0], yPos[2], zPos[0], xPos[1], yPos[3], zPos[1]);
branch.ChildBounds[3] = new AxisAlignedBoundingBox(xPos[2], yPos[2], zPos[0], xPos[3], yPos[3], zPos[1]);
branch.ChildBounds[4] = new AxisAlignedBoundingBox(xPos[0], yPos[0], zPos[2], xPos[1], yPos[1], zPos[3]);
branch.ChildBounds[5] = new AxisAlignedBoundingBox(xPos[2], yPos[0], zPos[2], xPos[3], yPos[1], zPos[3]);
branch.ChildBounds[6] = new AxisAlignedBoundingBox(xPos[0], yPos[2], zPos[2], xPos[1], yPos[3], zPos[3]);
branch.ChildBounds[7] = new AxisAlignedBoundingBox(xPos[2], yPos[2], zPos[2], xPos[3], yPos[3], zPos[3]);
return(branch);
}
