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# coding: utf-8
#
# Project: X-ray image reader
# https://github.com/silx-kit/fabio
#
#
# Copyright (C) European Synchrotron Radiation Facility, Grenoble, France
#
# Principal author: Jérôme Kieffer (Jerome.Kieffer@ESRF.eu)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE
"""Math function which can be useful on the full project
"""
import numpy
def naive_rad2deg(x):
"""
Naive implementation of radiuan to degree.
Useful for very old numpy (v1.0.1 on MacOSX from Risoe)
"""
return 180.0 * x / numpy.pi
def naive_deg2rad(x):
"""
Naive implementation of degree to radiuan.
Useful for very old numpy (v1.0.1 on MacOSX from Risoe)
"""
return x * numpy.pi / 180.
try:
from numpy import rad2deg, deg2rad
except ImportError:
# naive implementation for very old numpy (v1.0.1 on MacOSX from Risoe)
rad2deg = naive_deg2rad
deg2rad = naive_deg2rad
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