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62 lines
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1.9 KiB
Python
62 lines
No EOL
1.9 KiB
Python
##
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# This software was developed and / or modified by Raytheon Company,
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# pursuant to Contract DG133W-05-CQ-1067 with the US Government.
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#
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# U.S. EXPORT CONTROLLED TECHNICAL DATA
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# This software product contains export-restricted data whose
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# export/transfer/disclosure is restricted by U.S. law. Dissemination
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# to non-U.S. persons whether in the United States or abroad requires
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# an export license or other authorization.
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#
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# Contractor Name: Raytheon Company
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# Contractor Address: 6825 Pine Street, Suite 340
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# Mail Stop B8
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# Omaha, NE 68106
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# 402.291.0100
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#
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# See the AWIPS II Master Rights File ("Master Rights File.pdf") for
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# further licensing information.
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##
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# ----------------------------------------------------------------
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# Calculate magnitude
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# ----------------------------------------------------------------
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from numpy import hypot
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def execute(*args):
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""" Return the magnitude of a given vector or vector components
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"""
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if type(args[0]) == tuple:
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return vectorMagnitude(args[0])
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else:
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return componentMagnitude(args[0], args[1])
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def vectorMagnitude(vector):
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""" Return the first item in the vector tuple (its the magnitude)
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vector tuples are assumed to follow the tuple returned by the
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Vector.execute method. That is (mag,dir,u,v)
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"""
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return vector[0]
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def componentMagnitude(u, v):
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return hypot(u, v)
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def test():
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from Vector import execute as Vector
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from numpy import array
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testVector = Vector(array([1., 2.]), array([180., 270.]), True)
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result = execute(testVector)
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if not(all(result == array([1.,2.]))):
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raise Exception
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result = execute(testVector[2],testVector[3])
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if not(all(result == array([1.,2.]))):
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raise Exception
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print "Magnitude Test Complete" |