ClassOperation.__sub__() - Code Metrics - Inspection of "Simplified NEobject operations" - benbaror/ne2001 - Measure and Improve Code Quality continuously with Scrutinizer

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by Ben

created 2016-12-15 01:18 UTC

ClassOperation.sub() A

↳ Parent: rotation()

Complexity

Conditions

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
c	1
b	0
f	0
dl	0
loc	2
rs	10

"Some utility methods"
from __future__ import division
import numpy as np
from numpy import cos
from numpy import pi
from numpy import sin


def lzproperty(attribute):
    """
    Lazy property: evaluate property only once
    """
    save_att = '_' + attribute.__name__

    @property
    def _get(self):
        try:
            return getattr(self, save_att)
        except AttributeError:
            setattr(self, save_att, attribute(self))
        return getattr(self, save_att)
    return _get


def rotation(theta, axis=-1):
    """
    Return a rotation matrix around axis
    0:x, 1:y, 2:z
    """
    ct = cos(theta)
    st = sin(theta)

    if axis in (0, -3):
        return np.array([[1, 0, 0],
                         [0, ct, st],
                         [0, -st, ct]])

    if axis in (1, -2):
        return np.array([[ct, 0, st],
                         [0, 1, 0],
                         [-st, 0, ct]])

    if axis in (2, -1):
        return np.array([[ct, st, 0],
                         [-st, ct, 0],
                         [0, 0, 1]])


def galactic_to_galactocentric(l, b, distance, xyz_sun=[0, 8.5, 0]):
    slc = sin(l/180*pi)
    clc = cos(l/180*pi)
    sbc = sin(b/180*pi)
    cbc = cos(b/180*pi)
    rgalc = distance*cbc
    xc = xyz_sun[0] + rgalc*slc
    yc = xyz_sun[1] - rgalc*clc
    zc = xyz_sun[-1] + distance*sbc
    return np.array([xc, yc, zc])


1			"Some utility methods"
2			from __future__ import division
3			import numpy as np
4			from numpy import cos
5			from numpy import pi
6			from numpy import sin
7
8
9			def lzproperty(attribute):
10			"""
11			Lazy property: evaluate property only once
12			"""
13			save_att = '_' + attribute.__name__
14
15			@property
16			def _get(self):
17			try:
18			return getattr(self, save_att)
19			except AttributeError:
20			setattr(self, save_att, attribute(self))
21			return getattr(self, save_att)
22			return _get
23
24
25			def rotation(theta, axis=-1):
26			"""
27			Return a rotation matrix around axis
28			0:x, 1:y, 2:z
29			"""
30			ct = cos(theta)
31			st = sin(theta)
32
33			if axis in (0, -3):
34			return np.array([[1, 0, 0],
35			[0, ct, st],
36			[0, -st, ct]])
37
38			if axis in (1, -2):
39			return np.array([[ct, 0, st],
40			[0, 1, 0],
41			[-st, 0, ct]])
42
43			if axis in (2, -1):
44			return np.array([[ct, st, 0],
45			[-st, ct, 0],
46			[0, 0, 1]])
47
48
49			def galactic_to_galactocentric(l, b, distance, xyz_sun=[0, 8.5, 0]):
50			slc = sin(l/180*pi)
51			clc = cos(l/180*pi)
52			sbc = sin(b/180*pi)
53			cbc = cos(b/180*pi)
54			rgalc = distance*cbc
55			xc = xyz_sun[0] + rgalc*slc
56			yc = xyz_sun[1] - rgalc*clc
57			zc = xyz_sun[-1] + distance*sbc
58			return np.array([xc, yc, zc])
59

benbaror / ne2001

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