Umbau auf server

public/py/vendor_linux/skyfield/tests/test_geometry.py

@@ -0,0 +1,30 @@
+from numpy import array, isnan
+from skyfield.geometry import intersect_line_and_sphere
+
+def a(*args):
+    return array(args)
+
+def test_intersect_line_and_sphere():
+    near, far = intersect_line_and_sphere(a(1000, 0, 0), a(2, 0, 0), 1)
+    assert near == 1.0
+    assert far == 3.0
+
+    near, far = intersect_line_and_sphere(a(-1000, 0, 0), a(3, 0, 0), 1)
+    assert near == -4.0
+    assert far == -2.0
+
+    near, far = intersect_line_and_sphere(a(0, 0.5, 0), a(0, 5, 0), 2)
+    assert near == 3.0
+    assert far == 7.0
+
+    near, far = intersect_line_and_sphere(a(1000, 0, 0), a(0, 5, 0), 2)
+    assert isnan(near)
+    assert isnan(far)
+
+    near, far = intersect_line_and_sphere(a(1000, 0, 0), a(2, 1, 0), 1)
+    assert near == 2.0
+    assert far == 2.0
+
+    near, far = intersect_line_and_sphere(a(1000, 0, 0), a(2, 0.999, 0), 1)
+    assert abs(near - 1.955) < 1e-3
+    assert abs(far - 2.045) < 1e-3