def test_example2(self):
surf = read_asc(os.path.join(DATADIR, 'example2.txt'))
self.assertEqual(surf.nb_grid_pts, (650, 650))
self.assertAlmostEqual(surf.physical_sizes[0], 0.0002404103)
self.assertAlmostEqual(surf.physical_sizes[1], 0.0002404103)
self.assertAlmostEqual(surf.rms_height(), 2.7722350402740072e-07)
self.assertAlmostEqual(surf.rms_slope(), 0.35152685030417763)
self.assertTrue(surf.is_uniform)
self.assertEqual(surf.info['unit'], 'm')
def test_example3(self):
surf = read_asc(os.path.join(DATADIR, 'example3.txt'))
self.assertEqual(surf.nb_grid_pts, (256, 256))
self.assertAlmostEqual(surf.physical_sizes[0], 10e-6)
self.assertAlmostEqual(surf.physical_sizes[1], 10e-6)
self.assertAlmostEqual(surf.rms_height(), 3.5222918750198742e-08)
self.assertAlmostEqual(surf.rms_slope(), 0.19235602282848963)
self.assertTrue(surf.is_uniform)
self.assertEqual(surf.info['unit'], 'm')
def test_example1(self):
surf = read_asc(os.path.join(DATADIR, 'example1.txt'))
self.assertTrue(isinstance(surf, Topography))
self.assertEqual(surf.nb_grid_pts, (1024, 1024))
self.assertAlmostEqual(surf.physical_sizes[0], 2000)
self.assertAlmostEqual(surf.physical_sizes[1], 2000)
self.assertAlmostEqual(surf.rms_height(), 17.22950485567042)
self.assertAlmostEqual(surf.rms_slope(), 0.4560243831362324)
self.assertTrue(surf.is_uniform)
self.assertEqual(surf.info['unit'], 'nm')
def test_example4(self):
surf = read_asc(os.path.join(DATADIR, 'example4.txt'))
self.assertEqual(surf.nb_grid_pts, (75, 305))
self.assertAlmostEqual(surf.physical_sizes[0], 2.773965e-05)
self.assertAlmostEqual(surf.physical_sizes[1], 0.00011280791)
self.assertAlmostEqual(surf.rms_height(), 1.1745891510991089e-07)
self.assertAlmostEqual(surf.rms_height(kind='Rq'),
1.1745891510991089e-07)
self.assertAlmostEqual(surf.rms_slope(), 0.06776316911544318)
self.assertTrue(surf.is_uniform)
self.assertEqual(surf.info['unit'], 'm')
# test setting the physical_sizes
surf.physical_sizes = 1, 2
self.assertAlmostEqual(surf.physical_sizes[0], 1)
self.assertAlmostEqual(surf.physical_sizes[1], 2)
def test_example5(self):
surf = read_asc(os.path.join(DATADIR, 'example5.txt'))
self.assertTrue(isinstance(surf, Topography))
self.assertEqual(surf.nb_grid_pts, (10, 10))
self.assertTrue(surf.physical_sizes is None)
self.assertAlmostEqual(surf.rms_height(), 1.0)
with self.assertRaises(ValueError):
surf.rms_slope()
self.assertTrue(surf.is_uniform)
self.assertFalse('unit' in surf.info)
# test setting the physical_sizes
surf.physical_sizes = 1, 2
self.assertAlmostEqual(surf.physical_sizes[0], 1)
self.assertAlmostEqual(surf.physical_sizes[1], 2)
bw = surf.bandwidth()
self.assertAlmostEqual(bw[0], 1.5 / 10)
self.assertAlmostEqual(bw[1], 1.5)
reader = AscReader(os.path.join(DATADIR, 'example5.txt'))
self.assertTrue(reader.default_channel.physical_sizes is None)