First Commit

2026-05-31 10:17:09 +07:00
commit 17a9c69379
4547 changed files with 1170384 additions and 0 deletions
@@ -0,0 +1,127 @@
+import numpy as np
+import pytest
+
+from shapely import LineString, geos_version
+from shapely.tests.common import (
+    line_string,
+    line_string_m,
+    line_string_z,
+    line_string_zm,
+    point,
+    point_m,
+    point_z,
+    point_zm,
+)
+
+
+class TestCoords:
+    """
+    Shapely assumes contiguous C-order float64 data for internal ops.
+    Data should be converted to contiguous float64 if numpy exists.
+    c9a0707 broke this a little bit.
+    """
+
+    def test_data_promotion(self):
+        coords = np.array([[12, 34], [56, 78]], dtype=np.float32)
+        processed_coords = np.array(LineString(coords).coords)
+
+        assert coords.tolist() == processed_coords.tolist()
+
+    def test_data_destriding(self):
+        coords = np.array([[12, 34], [56, 78]], dtype=np.float32)
+
+        # Easy way to introduce striding: reverse list order
+        processed_coords = np.array(LineString(coords[::-1]).coords)
+
+        assert coords[::-1].tolist() == processed_coords.tolist()
+
+
+class TestCoordsGetItem:
+    def test_index_coords(self):
+        c = [(float(x), float(-x)) for x in range(4)]
+        g = LineString(c)
+        for i in range(-4, 4):
+            assert g.coords[i] == c[i]
+        with pytest.raises(IndexError):
+            g.coords[4]
+        with pytest.raises(IndexError):
+            g.coords[-5]
+
+    def test_index_coords_z(self):
+        c = [(float(x), float(-x), float(x * 2)) for x in range(4)]
+        g = LineString(c)
+        for i in range(-4, 4):
+            assert g.coords[i] == c[i]
+        with pytest.raises(IndexError):
+            g.coords[4]
+        with pytest.raises(IndexError):
+            g.coords[-5]
+
+    def test_index_coords_misc(self):
+        g = LineString()  # empty
+        with pytest.raises(IndexError):
+            g.coords[0]
+        with pytest.raises(TypeError):
+            g.coords[0.0]
+
+    def test_slice_coords(self):
+        c = [(float(x), float(-x)) for x in range(4)]
+        g = LineString(c)
+        assert g.coords[1:] == c[1:]
+        assert g.coords[:-1] == c[:-1]
+        assert g.coords[::-1] == c[::-1]
+        assert g.coords[::2] == c[::2]
+        assert g.coords[:4] == c[:4]
+        assert g.coords[4:] == c[4:] == []
+
+    def test_slice_coords_z(self):
+        c = [(float(x), float(-x), float(x * 2)) for x in range(4)]
+        g = LineString(c)
+        assert g.coords[1:] == c[1:]
+        assert g.coords[:-1] == c[:-1]
+        assert g.coords[::-1] == c[::-1]
+        assert g.coords[::2] == c[::2]
+        assert g.coords[:4] == c[:4]
+        assert g.coords[4:] == c[4:] == []
+
+
+class TestXY:
+    """New geometry/coordseq method 'xy' makes numpy interop easier"""
+
+    def test_arrays(self):
+        x, y = LineString([(0, 0), (1, 1)]).xy
+        assert len(x) == 2
+        assert list(x) == [0.0, 1.0]
+        assert len(y) == 2
+        assert list(y) == [0.0, 1.0]
+
+
+@pytest.mark.parametrize("geom", [point, point_z, line_string, line_string_z])
+def test_coords_array_copy(geom):
+    """Test CoordinateSequence.__array__ method."""
+    coord_seq = geom.coords
+    assert np.array(coord_seq) is not np.array(coord_seq)
+    assert np.array(coord_seq, copy=True) is not np.array(coord_seq, copy=True)
+
+    # Behaviour of copy=False is different between NumPy 1.x and 2.x
+    if int(np.version.short_version.split(".", 1)[0]) >= 2:
+        with pytest.raises(ValueError, match="A copy is always created"):
+            np.array(coord_seq, copy=False)
+    else:
+        assert np.array(coord_seq, copy=False) is np.array(coord_seq, copy=False)
+
+
+@pytest.mark.skipif(geos_version < (3, 12, 0), reason="GEOS < 3.12")
+def test_coords_with_m():
+    assert point_m.coords[:] == [(2.0, 3.0, 5.0)]
+    assert point_zm.coords[:] == [(2.0, 3.0, 4.0, 5.0)]
+    assert line_string_m.coords[:] == [
+        (0.0, 0.0, 1.0),
+        (1.0, 0.0, 2.0),
+        (1.0, 1.0, 3.0),
+    ]
+    assert line_string_zm.coords[:] == [
+        (0.0, 0.0, 4.0, 1.0),
+        (1.0, 0.0, 4.0, 2.0),
+        (1.0, 1.0, 4.0, 3.0),
+    ]