map-machine/tests/test_flinger.py
2022-07-18 23:31:23 +03:00

26 lines
758 B
Python

"""Test coordinates computation."""
import numpy as np
from map_machine.geometry.flinger import (
osm_zoom_level_to_pixels_per_meter,
pseudo_mercator,
)
__author__ = "Sergey Vartanov"
__email__ = "me@enzet.ru"
def test_pseudo_mercator() -> None:
"""Test pseudo-Mercator projection."""
assert np.allclose(pseudo_mercator(np.array((0, 0))), np.array((0, 0)))
assert np.allclose(pseudo_mercator(np.array((0, 10))), np.array((10, 0)))
assert np.allclose(
pseudo_mercator(np.array((10, 0))), np.array((0, 10.05115966))
)
def test_osm_zoom_level_to_pixels_per_meter() -> None:
"""Test scale computation."""
assert np.allclose(
osm_zoom_level_to_pixels_per_meter(18, 40_075_017.0), 1.6745810488364858
)