/**
* Sum the perimeter of all white leaves in the two specified
* quadrants of the sub quad tree rooted at this node. Since
* this is a grey node, we just recursively call this routine
* on the appropriate children (that may be white nodes).
*
* @param quad1 the first specified quadrant
* @param quad2 the second specified quadrant
* @param size the size of the image represented by this node
* @return the perimeter of the adjacent nodes
*/
public override int sumAdjacent (Quadrant quad1, Quadrant quad2, int size)
{
QuadTreeNode child1 = quad1.child (this);
QuadTreeNode child2 = quad2.child (this);
size = size / 2;
return child1.sumAdjacent (quad1, quad2, size) + child2.sumAdjacent (quad1, quad2, size);
}
/**
* The entry point to computing the perimeter of an image.
*
* @param args the command line arguments
*/
public static void Main(String[] args, ILog ilog)
{
logger = ilog;
parseCmdLine(args);
Quadrant.staticInitQuadrant();
int size = 1 << levels;
int msize = 1 << (levels - 1);
QuadTreeNode.gcmp = size * 1024;
QuadTreeNode.lcmp = msize * 1024;
QuadTreeNode tree = QuadTreeNode.createTree(msize, 0, 0, null, Quadrant.cSouthEast, levels);
int leaves = tree.countTree();
int perm = tree.perimeter(size);
if (printResult)
{
logger.InfoFormat("Perimeter is " + perm);
logger.InfoFormat("Number of leaves " + leaves);
}
logger.InfoFormat("Done!");
}
/**
* Sum the perimeter of all white leaves in the two specified
* quadrants of the sub quad tree rooted at this node. Since
* this is a grey node, we just recursively call this routine
* on the appropriate children (that may be white nodes).
*
* @param quad1 the first specified quadrant
* @param quad2 the second specified quadrant
* @param size the size of the image represented by this node
* @return the perimeter of the adjacent nodes
*/
public override int sumAdjacent(Quadrant quad1, Quadrant quad2, int size)
{
QuadTreeNode child1 = quad1.child(this);
QuadTreeNode child2 = quad2.child(this);
size = size / 2;
return(child1.sumAdjacent(quad1, quad2, size) + child2.sumAdjacent(quad1, quad2, size));
}
/**
* Create a node in the quad tree.
*
* @param childType if there's a parent, the type of child
* @param nw the node represent the northwest quadrant
* @param ne the node represent the northeast quadrant
* @param sw the node represent the southwest quadrant
* @param se the node represent the southeast quadrant
*/
private QuadTreeNode(Quadrant quad, QuadTreeNode nw, QuadTreeNode ne, QuadTreeNode sw, QuadTreeNode se, QuadTreeNode parent)
{
this.quadrant = quad;
this.nw = nw;
this.ne = ne;
this.sw = sw;
this.se = se;
this.parent = parent;
}
/**
* Sum the perimeter of all white leaves in the two specified
* quadrants of the sub quad tree rooted at this node.
*
* @param quad1 the first specified quadrant
* @param quad2 the second specified quadrant
* @param size the size of the image represented by this node.
* @return the perimeter of the adjacent nodes
*/
public override int sumAdjacent (Quadrant quad1, Quadrant quad2, int size)
{
return 0;
}
/**
* Construct a <tt>black</tt> quad tree node.
*
* @param quadrant the quadrant that this node represents
* @param the parent quad tree node
*/
public BlackNode (Quadrant quadrant, QuadTreeNode parent)
: base (quadrant, parent)
{
;
}
/**
* Construct a <tt>black</tt> quad tree node.
*
* @param quadrant the quadrant that this node represents
* @param the parent quad tree node
*/
public BlackNode(Quadrant quadrant, QuadTreeNode parent)
: base(quadrant, parent)
{
;
}
/**
* Sum the perimeter of all white leaves in the two specified
* quadrants of the sub quad tree rooted at this node.
*
* @param quad1 the first specified quadrant
* @param quad2 the second specified quadrant
* @param size the size of the image represented by this node.
* @return the perimeter of the adjacent nodes
*/
public override int sumAdjacent(Quadrant quad1, Quadrant quad2, int size)
{
return(0);
}
/**
* Create a leaf node in the Quad Tree.
*
* @param childType if there's a parent, the type of child this node represents
* @param parent the parent quad tree node
*/
public QuadTreeNode(Quadrant quad, QuadTreeNode parent)
: this(quad, null, null, null, null, parent)
{
;
}
/** * Sum the perimeter of all white leaves in the two specified * quadrants of the sub quad tree rooted at this node. * * @param quad1 the first specified quadrant * @param quad2 the second specified quadrant * @param size the size of the image represented by this node. * @return the perimeter of the adjacent nodes */ abstract public int sumAdjacent(Quadrant quad1, Quadrant quad2, int size);
/**
* Create an image which is represented using a QuadTreeNode.
*
* @param size size of image
* @param center_x x coordinate of center
* @param center_y; y coordinate of center
* @param parent parent quad tree node
* @param quadrant the quadrant that the sub tree is in
* @param level the level of the tree
*/
public static QuadTreeNode createTree(int size, int center_x, int center_y, QuadTreeNode parent, Quadrant quadrant, int level)
{
QuadTreeNode node;
int intersect = checkIntersect(center_x, center_y, size);
size = size / 2;
if (intersect == 0 && size < 512)
{
node = new WhiteNode(quadrant, parent);
}
else if (intersect == 2)
{
node = new BlackNode(quadrant, parent);
}
else
{
if (level == 0)
{
node = new BlackNode(quadrant, parent);
}
else
{
node = new GreyNode(quadrant, parent);
QuadTreeNode sw = createTree(size, center_x - size, center_y - size, node,
Quadrant.cSouthWest, level - 1);
QuadTreeNode se = createTree(size, center_x + size, center_y - size, node,
Quadrant.cSouthEast, level - 1);
QuadTreeNode ne = createTree(size, center_x + size, center_y + size, node,
Quadrant.cNorthEast, level - 1);
QuadTreeNode nw = createTree(size, center_x - size, center_y + size, node,
Quadrant.cNorthWest, level - 1);
node.setChildren(nw, ne, sw, se);
}
}
return(node);
}
/**
* Construct a <tt>grey</tt> image node.
*
* @param quadrant the quadrant that this node represents
* @param parent the parent node in the quad tree.
*/
public GreyNode(Quadrant quadrant, QuadTreeNode parent)
: base(quadrant, parent)
{
;
}
/**
* Construct a <tt>white</tt> image node.
*
* @param quadrant the quadrant that this node represents
* @param parent the parent node in the quad tree
*/
public WhiteNode(Quadrant quadrant, QuadTreeNode parent)
: base(quadrant, parent)
{
;
}
/**
* Construct a <tt>white</tt> image node.
*
* @param quadrant the quadrant that this node represents
* @param parent the parent node in the quad tree
*/
public WhiteNode (Quadrant quadrant, QuadTreeNode parent)
: base (quadrant, parent)
{
;
}
/**
* Construct a <tt>grey</tt> image node.
*
* @param quadrant the quadrant that this node represents
* @param parent the parent node in the quad tree.
*/
public GreyNode (Quadrant quadrant, QuadTreeNode parent)
: base (quadrant, parent)
{
;
}
