private void BuildTree(RectangleGroup group)
{
// calculate total area size
int size = maxResolution;
treeDepth = 1;
int maxBounds = group.Bounds.Width > group.Bounds.Height ? group.Bounds.Width : group.Bounds.Height;
while (size < maxBounds)
{
size *= 2;
treeDepth++;
}
// create tree
DataArea[] rects = group.BreakdownGroup();
root = CreateNode(size, new Point(0, 0), rects, 1, treeDepth);
CalcStats(root);
}
public RectangleGroupQuadTree(int maxResolution, RectangleGroup rectGroup)
{
this.maxResolution = maxResolution;
BuildTree(rectGroup);
}