def __init__(self, length=1, stepsize=1, *args, **kwargs):
"""
length - the distance from the center to the outer x
stepsize - the distance between the x's
minradius - distance from the center to the first x
If the stepsize is greater than 1, then each 'x' in the diagrams above will be
separated by 'stepsize' pixels. The 'length' must always be a multiple of
'stepsize'
"""
assert (length >= 1)
SpiralSweep.__init__(self,
radius=length,
stepsize=stepsize,
minradius=None,
*args,
**kwargs)
# Generate a list of possible offsets for this stepsize and length
self.offsets = []
# Generate the horizontal sweep
for i in range(-length + 1, 1, stepsize):
self.offsets += [(i, 0)]
def __init__(self, radius=1, stepsize=1, minradius=None, *args, **kwargs):
"""
radius - the distance from the center to the outer x's
stepsize - the distance between the x's
minradius - distance from the center to the first x
If the stepsize is greater than 1, then each 'x' in the diagrams above will be
separated by 'stepsize' pixels. The 'radius' must always be a multiple of 'stepsize'
By default, the inner circle starts at a radius of stepsize. If minradius is set,
it defines the smallest circle radius. 'minradius' must also be a multiple of 'stepsize'
If includeCenter is True, the center location will be included. By default it is not.
"""
assert(radius >= 1)
SpiralSweep.__init__(self, radius=radius, stepsize=stepsize, minradius=minradius,
*args, **kwargs)
# Generate a list of possible offsets for this stepsize and radius
self.offsets = []
# First, generate the horizontal sweep
for i in range(-radius, radius+1, stepsize):
self.offsets += [(-i, 0)]
# Now, the vertical sweep
for i in range(-radius, radius+1, stepsize):
self.offsets += [(0, -i)]
def __init__(self, radius=1, *args, **kwargs):
"""
radius - the radius of the Patrol sweep
"""
assert(radius >= 1)
SpiralSweep.__init__(self, radius, *args, **kwargs)
r = radius
self.offsets = [(r, 0), (r, r), (0, r), (-r, r),
(-r, 0), (-r, -r), (0, -r), (r, -r)]
self.index = 0
def __init__(self, radius=1, *args, **kwargs):
"""
radius - the radius of the Patrol sweep
"""
assert (radius >= 1)
SpiralSweep.__init__(self, radius, *args, **kwargs)
r = radius
self.offsets = [(r, 0), (r, r), (0, r), (-r, r), (-r, 0), (-r, -r),
(0, -r), (r, -r)]
self.index = 0
def __init__(self, shift=1, radius=1, *args, **kwargs):
"""
@param shift -- Number of pixels to shift each time.
@param radius -- maximum amount to move away from center. Must be a multiple
of 'shift'
"""
assert (radius >= 1)
SpiralSweep.__init__(self, radius, *args, **kwargs)
if (radius % shift) != 0:
raise RuntimeError("radius must be a multiple of shift")
# Generate the location offsets that we will move to for each image
self.offsets = self._generateOffsets(shift, radius)
self.index = 0
def __init__(self, shift=1, radius=1, *args, **kwargs):
"""
@param shift -- Number of pixels to shift each time.
@param radius -- maximum amount to move away from center. Must be a multiple
of 'shift'
"""
assert(radius >= 1)
SpiralSweep.__init__(self, radius, *args, **kwargs)
if (radius % shift) != 0:
raise RuntimeError("radius must be a multiple of shift")
# Generate the location offsets that we will move to for each image
self.offsets = self._generateOffsets(shift, radius)
self.index = 0
def __init__(self, length=1, stepsize=1, *args, **kwargs):
"""
length - the distance from the center to the outer x
stepsize - the distance between the x's
minradius - distance from the center to the first x
If the stepsize is greater than 1, then each 'x' in the diagrams above will be
separated by 'stepsize' pixels. The 'length' must always be a multiple of
'stepsize'
"""
assert length >= 1
SpiralSweep.__init__(self, radius=length, stepsize=stepsize, minradius=None, *args, **kwargs)
# Generate a list of possible offsets for this stepsize and length
self.offsets = []
# Generate the horizontal sweep
for i in range(-length + 1, 1, stepsize):
self.offsets += [(i, 0)]