internal GridPopulatedLeafNode(GridUnpopulatedLeafNode unpopulated)
{
this.Parent = unpopulated.Parent;
this.Rectangle = unpopulated.Rectangle;
this.BoundingRectangle = GridBounds.Uninitialized;
this.VisibleLeafNodes = null;
this.StaticOpaqueObjects = new StaticOpaqueObject[] { null };
this.StaticOpaqueObjectCount = 0;
this.DisplayList = new DisplayList();
this.TransparentFaces = new object[1];
this.TransparentFaceCount = 0;
}
/// <summary>Finalizes the bounding rectangles for the specified node and all its child nodes.</summary>
/// <param name="node">The node for which to finalize visiblity lists.</param>
/// <remarks>This function is used to get rid of uninitialized bounding rectangles.</remarks>
private void FinalizeBoundingRectangles(GridNode node)
{
if (node is GridInternalNode) {
GridInternalNode intern = (GridInternalNode)node;
for (int i = 0; i < intern.Children.Length; i++) {
FinalizeBoundingRectangles(intern.Children[i]);
}
} else if (node is GridLeafNode) {
GridLeafNode leaf = (GridLeafNode)node;
if (leaf.BoundingRectangle.Left > leaf.BoundingRectangle.Right | leaf.BoundingRectangle.Near > leaf.BoundingRectangle.Far) {
if (leaf is GridPopulatedLeafNode) {
GridUnpopulatedLeafNode unpopulated = new GridUnpopulatedLeafNode(leaf.Parent, leaf.Rectangle);
unpopulated.BoundingRectangle = unpopulated.Rectangle;
for (int i = 0; i < leaf.Parent.Children.Length; i++) {
if (unpopulated.Parent.Children[i] == leaf) {
unpopulated.Parent.Children[i] = unpopulated;
}
}
unpopulated.Parent.UpdateBoundingRectangle();
} else {
leaf.BoundingRectangle = leaf.Rectangle;
leaf.Parent.UpdateBoundingRectangle();
}
}
}
}
