def test_frequency_intervals():
"""Test the distance of frequency_intervals"""
# Plot windrose
epw_path = os.path.join(os.getcwd(), 'tests/fixtures/epw/tokyo.epw')
epw = EPW(epw_path)
w = WindRose(epw.wind_direction, epw.wind_speed, 3)
w.show_zeros = False
w.show_freq = False
w.frequency_hours = 200.0
test_freq_int = int(math.ceil(w.real_freq_max / 200.0))
assert w.frequency_intervals_compass == pytest.approx(test_freq_int, abs=1e-10)
assert w.frequency_intervals_mesh == pytest.approx(test_freq_int, abs=1e-10)
# Test changing interals from 18
# Reduce
w.frequency_intervals_compass = 10.0
test_freq_int = 10.0
assert w.frequency_maximum == pytest.approx(10 * 200.0, abs=1e-10)
assert w.frequency_intervals_compass == pytest.approx(test_freq_int, abs=1e-10)
assert w.frequency_intervals_mesh == pytest.approx(test_freq_int, abs=1e-10)
# Check that resetting frequency_max works
w._frequency_intervals_compass = None
# w.real_freq_max: 4406
chk_max = int(math.ceil(4406 / 200)) * 200
assert w.frequency_maximum == pytest.approx(chk_max, abs=1e-10)
assert w.frequency_intervals_compass == pytest.approx(23, abs=1e-10)
assert w.frequency_intervals_mesh == pytest.approx(23, abs=1e-10)
win_dir = _wind_direction
windrose = WindRose(win_dir, speed_data, _dir_count_)
if len(legend_par_) > 0:
try: # sense when several legend parameters are connected
lpar = legend_par_[i]
except IndexError:
lpar = legend_par_[-1]
windrose.legend_parameters = lpar
if _freq_hours_ is not None:
windrose.frequency_hours = _freq_hours_
# Add and check optional visualization parameters
if _max_freq_lines_ is not None:
windrose.frequency_intervals_compass = _max_freq_lines_
if _freq_dist_ is not None:
windrose.frequency_spacing_distance = _freq_dist_
windrose.north = north_
windrose.show_freq = _show_freq_
calm_text = ''
if isinstance(speed_data.header.data_type, Speed):
windrose.show_zeros = _show_calmrose_
calm_text = '\nCalm for {}% of the time = {} hours.'.format(
round(
windrose._zero_count / len(windrose.analysis_values) *
100.0, 2), windrose._zero_count)
windrose.base_point = Point2D(center_pt_2d.x, center_pt_2d.y)
