def test_spatial_knn_query_correctness(self):
rectangle_rdd = RectangleRDD(self.sc, inputLocation, offset, splitter,
True)
result_no_index = KNNQuery.SpatialKnnQuery(rectangle_rdd,
self.query_point,
self.top_k, False)
rectangle_rdd.buildIndex(IndexType.RTREE, False)
result_with_index = KNNQuery.SpatialKnnQuery(rectangle_rdd,
self.query_point,
self.top_k, True)
sorted_result_no_index = sorted(
result_no_index,
key=lambda geo_data: distance_sorting_functions(
geo_data, self.query_point))
sorted_result_with_index = sorted(
result_with_index,
key=lambda geo_data: distance_sorting_functions(
geo_data, self.query_point))
difference = 0
for x in range(self.top_k):
difference += sorted_result_no_index[x].geom.distance(
sorted_result_with_index[x].geom)
assert difference == 0
def test_spatial_knn_correctness(self):
point_rdd = PointRDD(self.sc, input_location, offset, splitter, True,
StorageLevel.MEMORY_ONLY, "epsg:4326",
"epsg:3005")
result_no_index = KNNQuery.SpatialKnnQuery(point_rdd, query_point,
top_k, False)
point_rdd.buildIndex(IndexType.RTREE, False)
result_with_index = KNNQuery.SpatialKnnQuery(point_rdd, query_point,
top_k, True)
sorted_result_no_index = sorted(
result_no_index,
key=lambda geo_data: distance_sorting_functions(
geo_data, query_point))
sorted_result_with_index = sorted(
result_with_index,
key=lambda geo_data: distance_sorting_functions(
geo_data, query_point))
difference = 0
for x in range(top_k):
difference += sorted_result_no_index[x].geom.distance(
sorted_result_with_index[x].geom)
assert difference == 0
def test_spatial_knn_query_using_index(self):
polygon_rdd = PolygonRDD(self.sc, input_location, splitter, True)
polygon_rdd.buildIndex(IndexType.RTREE, False)
for i in range(self.loop_times):
result = KNNQuery.SpatialKnnQuery(polygon_rdd, self.query_point,
self.top_k, True)
assert result.__len__() > -1
assert result[0].getUserData() is not None
def test_spatial_knn_query(self):
point_rdd = PointRDD(self.sc, input_location, offset, splitter, False)
for i in range(self.loop_times):
result = KNNQuery.SpatialKnnQuery(point_rdd, self.query_point,
self.top_k, False)
assert result.__len__() > -1
assert result[0].getUserData() is not None
def test_spatial_knn_query(self):
line_string_rdd = LineStringRDD(self.sc, input_location, splitter,
True)
for i in range(self.loop_times):
result = KNNQuery.SpatialKnnQuery(line_string_rdd,
self.query_point, 5, False)
assert result.__len__() > -1
assert result[0].getUserData() is not None
def test_knn_query(self):
object_rdd = PointRDD(sparkContext=self.sc,
InputLocation=point_rdd_input_location,
Offset=point_rdd_offset,
splitter=point_rdd_splitter,
carryInputData=False)
for i in range(each_query_loop_times):
result = KNNQuery.SpatialKnnQuery(object_rdd, knn_query_point,
1000, False)
def test_spatial_knn_query(self):
point_rdd = PointRDD(self.sc, input_location, offset, splitter, True,
StorageLevel.MEMORY_ONLY, "epsg:4326",
"epsg:3005")
for i in range(loop_times):
result = KNNQuery.SpatialKnnQuery(point_rdd, query_point, top_k,
False)
assert result.__len__() > 0
assert result[0].getUserData() is not None