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Add tests for box dimensions and global box center (fix #5) #9

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Jul 30, 2023
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Add tests for box dimensions and global box center (fix #5) #9

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24 changes: 23 additions & 1 deletion tests/test_e57.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
import e57
import numpy as np
import pytest

import e57


def test_raw_xml():
Expand All @@ -11,3 +13,23 @@ def test_read_points():
pointcloud = e57.read_points(r"testdata/bunnyFloat.e57")
assert isinstance(pointcloud, np.ndarray)
assert len(pointcloud) == 30_571


def test_box_dimensions():
pointcloud: np.ndarray = e57.read_points(r"testdata/bunnyFloat.e57")
max_coords = pointcloud.max(0, None, False, -np.inf)
min_coords = pointcloud.min(0, None, False, np.inf)
X, Y, Z = max_coords - min_coords
assert X == pytest.approx(0.155698)
assert Y == pytest.approx(0.14731)
assert Z == pytest.approx(0.120672)


def test_global_box_center():
pointcloud: np.ndarray = e57.read_points(r"testdata/bunnyFloat.e57")
max_coords = pointcloud.max(0, None, False, -np.inf)
min_coords = pointcloud.min(0, None, False, np.inf)
X, Y, Z = (max_coords + min_coords) / 2
assert X == pytest.approx(-0.016840)
assert Y == pytest.approx(0.113666)
assert Z == pytest.approx(-0.001537)