Created
July 18, 2015 19:26
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rtree stream issue
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import numpy as np | |
import rtree | |
import time | |
def random_tree_stream(points_count, include_object): | |
properties = rtree.index.Property() | |
properties.dimension = 3 | |
points_random = np.random.random((points_count,3,3)) | |
points_bounds = np.column_stack((points_random.min(axis=1), | |
points_random.max(axis=1))) | |
stacked = zip(np.arange(points_count), | |
points_bounds, | |
np.arange(points_count)) | |
tic = time.time() | |
tree = rtree.index.Index(stacked, | |
properties = properties) | |
toc = time.time() | |
print'creation, objects:', include_object, '\tstream method: ', toc-tic | |
return tree | |
def random_tree_insert(points_count, include_object): | |
properties = rtree.index.Property() | |
properties.dimension = 3 | |
points_random = np.random.random((points_count,3,3)) | |
points_bounds = np.column_stack((points_random.min(axis=1), | |
points_random.max(axis=1))) | |
tree = rtree.index.Index(properties = properties) | |
if include_object: | |
stacked = zip(np.arange(points_count), | |
points_bounds, | |
np.arange(points_count)) | |
else: | |
stacked = zip(np.arange(points_count), | |
points_bounds) | |
tic = time.time() | |
for arg in stacked: | |
tree.insert(*arg) | |
toc = time.time() | |
print 'creation, objects:', include_object, '\tinsert method: ', toc-tic | |
return tree | |
def check_tree(tree, count): | |
# tid should intersect every box, | |
# as our random boxes are all inside [0,0,0,1,1,1] | |
tic = time.time() | |
tid = list(tree.intersection([-1,-1,-1,2,2,2])) | |
toc = time.time() | |
ok = (np.unique(tid) - np.arange(count) == 0).all() | |
print 'intersection, id method: ', toc-tic, '\t query ok:', ok | |
tic = time.time() | |
tid = [i.object for i in tree.intersection([-1,-1,-1,2,2,2], objects=True)] | |
toc = time.time() | |
ok = (np.unique(tid) - np.arange(count) == 0).all() | |
print 'intersection, object method:', toc-tic, '\t query ok:', ok | |
if __name__ == '__main__': | |
count = 10000 | |
print '\nChecking stream loading\n---------------' | |
tree = random_tree_stream(count, False) | |
tree = random_tree_stream(count, True) | |
check_tree(tree, count) | |
print '\nChecking insert loading\n---------------' | |
tree = random_tree_insert(count, False) | |
tree = random_tree_insert(count, True) | |
check_tree(tree, count) |
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