python nn_radius bindings fails with assertion about flann

[mariusmuja]

Fixed in d425315.

[mariusmuja]

Hi Andrew,

Thanks for reporting this issue. It was a silly bug that slipped in the
latest release. I'm on my way back from ICRA, I'll make another quick
release containing the fix when I get home.

Regards,
Marius

On May 13, 2011 8:19am, AndrewWalker
[email protected]
wrote:

I'm not sure if I'm doing something incorrectly, but the nn_radius query
available in the python bindings seems to be triggering an assertion. The
following minimal example triggers the problem on my machine. FLANN
1.6.9, compiled with with gcc 4.4.3, and accessing the library from
python 2.6.5.

from pyflann import *

from numpy import *

from numpy.random import *

dataset = rand(10000, 3)

testset = rand(3)

flann = FLANN()

flann = FLANN()

params = flann.build_index(dataset, target_precision=0.9, log_level
= "info");

result, dists = flann.nn_radius(testset,0.2, checks=params["checks"])

Which results in the following assertion:

{'branching': 32, 'cb_index':
0.5, 'centers_init': 'default', 'log_level': 'info', 'algorithm': 'default', 'build_weight':
0.0099999997764825821, 'leaf_max_size': 4, 'eps': 0.0, 'trees':
1, 'speedup': 0.0, 'memory_weight': 0.0, 'target_precision':
0.89999997615814209, 'sample_fraction':
0.10000000149011612, 'iterations': 5, 'random_seed': 822048278, 'checks':
32}

python:
/home/walkera/software/flann-1.6.9-src/src/cpp/flann/algorithms/kdtree_index.h:540:
void flann::KDTreeIndex::getNeighbors(flann::ResultSet&, const typename
Distance::ElementType*, int, float) [with Distance = flann::L2]:
Assertion `result.full()' failed.

Command terminated

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