7 examples of 'rotate matrix python' in Python

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def Rotate(self, dir):
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    self.RemoveShape(self.curshape.y, self.curshape.x, self.curshape.shape,
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                     self.curshape.rotation);
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    newrot = dir + self.curshape.rotation;
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    if(newrot<0):
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        newrot = shapes[self.curshape.shape].rot - 1;
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    if(newrot==shapes[self.curshape.shape].rot):
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        newrot = 0;
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    ret=self.CheckMove(0, 0, self.curshape.shape, newrot);
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    if(ret):
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        self.curshape.rotation = newrot;
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    self.PutShape(self.curshape.y, self.curshape.x, self.curshape.shape,
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                  self.curshape.rotation);

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def rotate(x, y, angle):
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    """rotation transformation for a point."""
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    cost = cos(angle) #cost is short for cos(theta)
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    sint = sin(angle)
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    newx = x  * cost - y * sint
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    newy = x  * sint + y * cost
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    return (newx, newy)

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def rotate(self, degrees, clockwise=False):
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    """
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    Returns an AffineTransform which is rotated by the given number
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    of degrees. Anticlockwise unless clockwise=True is given.
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    """
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    degrees %= 360
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    if clockwise:
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        degrees = 360 - degrees
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    theta = degrees * pi / 180.0
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    # HACK: limited precision of floats means rotate() operations
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    # often cause numbers like 1.2246467991473532e-16.
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    # So we round() those to 15 decimal digits. Better solution welcome :/
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    rotation = AffineTransform((
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        round(cos(theta), 15), round(-sin(theta), 15), 0,
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        round(sin(theta), 15), round(cos(theta), 15), 0,
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        0, 0, 1,
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    ))
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    return self * rotation

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def _rotate(self, angle):
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    '''Change the current rotation'''
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    r = self.current_rotation + angle
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    if r == 360:
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        r = 0
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    if r < 0:
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        r += 360
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    elif r > 360:
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        r -= 360
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    self.current_rotation = r

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@classmethod
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def y_rotation(cls, angle):
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    """Creates a Matrix44 that does a rotation about the y axis.
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    angle -- Angle of rotation (in radians)
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    """
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    m = cls.__new__(cls, object)
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    return m.make_y_rotation(angle)

11
def rot_mtx(angle):
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    cs = np.cos(angle)
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    sn = np.sin(angle)
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    return np.array([[cs, 0., sn, 0., 0., 0.],
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                    [0.,  cs, 0., sn, 0., 0.],
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                    [-sn, 0., cs, 0., 0., 0.],
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                    [0., -sn, 0., cs, 0., 0.],
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                    [0.,  0., 0., 0., 1., 0.],
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                    [0.,  0., 0., 0., 0., 1.]])

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def rotate(x, y,  c,  s):
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    tx = x * c - y * s;
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    y = x * s + y * c;
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    x = tx;
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    return [x,y]