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# This file is part of xrayutilities.
#
# xrayutilities is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
# Copyright (C) 2012-2020 Dominik Kriegner <dominik.kriegner@gmail.com>
import unittest
import numpy
import xrayutilities as xu
class TestMathVector(unittest.TestCase):
def test_distance(self):
vec = (3, 1, 1)
point = (-4, -5, -1)
x, y, z = (-6, 1, 21)
d = xu.math.distance(
numpy.array((x, x)),
numpy.array((y, y)),
numpy.array((z, z)),
point,
vec,
)
self.assertEqual(d.size, 2)
self.assertAlmostEqual(d[0], 4 * numpy.sqrt(30), places=10)
self.assertAlmostEqual(d[1], 4 * numpy.sqrt(30), places=10)
if __name__ == "__main__":
unittest.main()
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