def test_medium_zoo(self):
import shapely.geometry
from vectordatasource.util import calculate_way_area, \
calculate_1px_zoom
import math
target_zoom = 11.0
# want a zoom 11 feature, so make one with a triangle.
target_area = math.exp((17.256 - target_zoom) * math.log(4))
# make area with a half-square triangle.
s = math.sqrt(target_area * 2.0)
shape = shapely.geometry.Polygon([(0, 0), (s, s), (s, 0)])
props = {
'zoo': 'enclosure',
}
# test the utility functions we're relying on
util_way_area = calculate_way_area(shape)
self.assertAlmostEqual(target_area, util_way_area)
util_min_zoom = calculate_1px_zoom(shape.area)
self.assertAlmostEqual(target_zoom, util_min_zoom)
meta = make_test_metadata()
out_min_zoom = self.landuse.fn(shape, props, None, meta)
self.assertAlmostEqual(target_zoom, out_min_zoom)
def test_medium_zoo(self):
import shapely.geometry
from vectordatasource.util import calculate_way_area, \
calculate_1px_zoom
import math
target_zoom = 14.0
# want a zoom 14 feature, so make one with a triangle.
target_area = math.exp((17.256 - target_zoom) * math.log(4))
# make area with a half-square triangle.
s = math.sqrt(target_area * 2.0)
shape = shapely.geometry.Polygon([(0, 0), (s, s), (s, 0)])
props = {
'zoo': 'enclosure',
}
# test the utility functions we're relying on
util_way_area = calculate_way_area(shape)
self.assertAlmostEqual(target_area, util_way_area)
util_min_zoom = calculate_1px_zoom(shape.area)
self.assertAlmostEqual(target_zoom, util_min_zoom)
meta = make_test_metadata()
out_min_zoom = self.landuse.fn(shape, props, None, meta)
self.assertAlmostEqual(target_zoom, out_min_zoom)