public AbstractQuadTreeNode(AbstractQuadTreeNode<E> parent, int positionInParentNode) {
this.parent = parent;
this.depth = parent.getDepth() + 1;
this.treeRoot = parent.getTreeRoot();
this.positionInParentNode = positionInParentNode;
this.elements = new ArrayList<E>(treeRoot.maxElementsPerNode);
switch (positionInParentNode) {
case NW:
maxX = parent.getSplitPoint().x;
maxY = parent.getMaxY();
minX = parent.getMinX();
minY = parent.getSplitPoint().y;
break;
case NE:
maxX = parent.getMaxX();
maxY = parent.getMaxY();
minX = parent.getSplitPoint().x;
minY = parent.getSplitPoint().y;
break;
case SW:
maxX = parent.getSplitPoint().x;
maxY = parent.getSplitPoint().y;
minX = parent.getMinX();
minY = parent.getMinY();
break;
case SE:
maxX = parent.getMaxX();
maxY = parent.getSplitPoint().y;
minX = parent.getSplitPoint().x;
minY = parent.getMinY();
break;
}
this.splitPoint = new Point2D.Double((maxX + minX) / 2, (maxY + minY) / 2);
}
