int ChildBoxNum = getChildIndex(n1->X(), n1->Y(), mid);
HYDROData_QuadtreeNode* myChild = dynamic_cast<HYDROData_QuadtreeNode*>(myChildren[ChildBoxNum]);
myChild->myNodes->push_back(n1);
int ChildBoxNum = getChildIndex(n1->X(), n1->Y(), mid);
HYDROData_QuadtreeNode* myChild = dynamic_cast<HYDROData_QuadtreeNode*>(myChildren[ChildBoxNum]);
myChild->myNodes->push_back(n1);