text stringlengths 0 828 |
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# does not contains the query. |
stack_node = deque([root_id]) |
stack_look = deque() |
while stack_node or stack_look: |
if stack_node: |
node_id = stack_node.pop() |
look_node = False |
else: |
node_id = stack_look.pop() |
look_node = True |
point, region, axis, active, left, right = get_properties(node_id) |
# Should consider this node? |
# As it is within a region that does not contains the query, maybe |
# there is no chance to find a closer node in this region |
if look_node: |
inside_region = True |
for i in range(k): |
inside_region &= interval_condition(query[i], region[i][0], |
region[i][1], dist) |
if not inside_region: |
continue |
# Update the distance only if the node is active. |
if active: |
node_distance = dist_fun(query, point) |
if nearest_node_id is None or dist > node_distance: |
nearest_node_id = node_id |
dist = node_distance |
if query[axis] < point[axis]: |
side_node = left |
side_look = right |
else: |
side_node = right |
side_look = left |
if side_node is not None: |
stack_node.append(side_node) |
if side_look is not None: |
stack_look.append(side_look) |
return nearest_node_id, dist" |
4592,"def deactivate(self, node_id): |
""""""Deactivate the node identified by node_id. |
Deactivates the node corresponding to node_id, which means that |
it can never be the output of a nearest_point query. |
Note: |
The node is not removed from the tree, its data is steel available. |
Args: |
node_id (int): The node identifier (given to the user after |
its insertion). |
"""""" |
node = self.node_list[node_id] |
self.node_list[node_id] = node._replace(active=False)" |
4593,"def insert(self, point, data=None): |
""""""Insert a new node in the tree. |
Args: |
point (:obj:`tuple` of float or int): Stores the position of the |
node. |
data (:obj, optional): The information stored by the node. |
Returns: |
int: The identifier of the new node. |
Example: |
>>> tree = Tree(4, 800) |
>>> point = (3, 7) |
>>> data = {'name': Fresnel, 'label': blue, 'speed': 98.2} |
>>> node_id = tree.insert(point, data) |
"""""" |
assert len(point) == self.k |
if self.size == 0: |
if self.region is None: |
self.region = [[-math.inf, math.inf]] * self.k |
axis = 0 |
return self.new_node(point, self.region, axis, data) |
# Iteratively descends to one leaf |
current_id = 0 |
while True: |
parent_node = self.node_list[current_id] |
axis = parent_node.axis |
if point[axis] < parent_node.point[axis]: |
next_id, left = parent_node.left, True |
else: |
next_id, left = parent_node.right, False |
if next_id is None: |
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