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Example 1
def skew_image():
image_skewed = np.zeros((image.shape[0], ceil((image.shape[1]/np.cos(theta)))+ 50 ))
for i in range(0,image.shape[0]):
for j in range(0,image.shape[1]):
xs = ceil(j / (1 + np.tan(theta)**2) + i*np.tan(theta)/ ( 1 + np.tan(theta)**2) )
#np.disp(xs)
ys = i
image_skewed[ys,xs] = image[i,j]
fft_image_skewed = fft.fftshift(fft.fft2(image_skewed))
return image_skewed, fft_image_skewed
# image in reciprocal space
#fft_image = fft.fftshift(fft.fft2(image))
# Create crystal: skewed and unskewed. 2D and 3D.
# create FFTs of these. Filter out one peak.
################################################ Example 2
def skew_3Dcrystal(crystal, theta):
#dx_filter = 1
crystal_skewed = np.zeros(( int(np.floor((crystal.shape[0]/np.cos(theta)))) + 50 , crystal.shape[1], crystal.shape[2] ), dtype=np.complex64)
theta = 10*np.pi/180
for i in range(0,crystal.shape[0]-6):
for j in range(0,crystal.shape[1]-6):
for k in range(0, crystal.shape[2]-6):
zs = ceil(j / (1 + np.tan(theta)**2) + i*np.tan(theta)/ ( 1 + np.tan(theta)**2) )
ys = i
xs = k
crystal_skewed[zs,ys,xs] = crystal[i,j,k]
#np.disp(crystal[i,j,k])
#if crystal[i,j,k]
crystal_filter2D_skewed = 1
return (crystal_skewed, crystal_filter2D_skewed) Example 3
def COM_variation(j, nbr_iter):
for i in range (j,nbr_iter):
xindex = np.argmax(np.sum(one_position[i],axis=0))
yindex = np.argmax(np.sum(one_position[i],axis=1))
reddot=np.zeros((512,512))
# Make a centred line in x and y intersection at COM
reddot[:,xindex] = 500000
reddot[yindex,:] = 500000
np.disp( xindex)
plt.figure()
noes = ['spring', 'autumn']
plt.imshow(np.log10(one_position[i]), cmap=noes[1] , interpolation = 'none')
plt.imshow(np.log10(reddot))
#plt.imshow(np.log10(one_position[1]), cmap = 'hot', interpolation = 'none')
#plt.colorbar() funkar ej med flera imshows
plt.title('Scan_nbr_%d'%(first_scan_nbr+i))
#COM_variation(0,3) Example 4
def disp(mesg, device=None, linefeed=True):
"""
Display a message on a device.
Parameters
----------
mesg : str
Message to display.
device : object
Device to write message. If None, defaults to ``sys.stdout`` which is
very similar to ``print``. `device` needs to have ``write()`` and
``flush()`` methods.
linefeed : bool, optional
Option whether to print a line feed or not. Defaults to True.
Raises
------
AttributeError
If `device` does not have a ``write()`` or ``flush()`` method.
Examples
--------
Besides ``sys.stdout``, a file-like object can also be used as it has
both required methods:
>>> from StringIO import StringIO
>>> buf = StringIO()
>>> np.disp('"Display" in a file', device=buf)
>>> buf.getvalue()
'"Display" in a file\\n'
"""
if device is None:
device = sys.stdout
if linefeed:
device.write('%s\n' % mesg)
else:
device.write('%s' % mesg)
device.flush()
return Example 5
def disp(mesg, device=None, linefeed=True):
"""
Display a message on a device.
Parameters
----------
mesg : str
Message to display.
device : object
Device to write message. If None, defaults to ``sys.stdout`` which is
very similar to ``print``. `device` needs to have ``write()`` and
``flush()`` methods.
linefeed : bool, optional
Option whether to print a line feed or not. Defaults to True.
Raises
------
AttributeError
If `device` does not have a ``write()`` or ``flush()`` method.
Examples
--------
Besides ``sys.stdout``, a file-like object can also be used as it has
both required methods:
>>> from StringIO import StringIO
>>> buf = StringIO()
>>> np.disp('"Display" in a file', device=buf)
>>> buf.getvalue()
'"Display" in a file\\n'
"""
if device is None:
device = sys.stdout
if linefeed:
device.write('%s\n' % mesg)
else:
device.write('%s' % mesg)
device.flush()
return Example 6
def disp(mesg, device=None, linefeed=True):
"""
Display a message on a device.
Parameters
----------
mesg : str
Message to display.
device : object
Device to write message. If None, defaults to ``sys.stdout`` which is
very similar to ``print``. `device` needs to have ``write()`` and
``flush()`` methods.
linefeed : bool, optional
Option whether to print a line feed or not. Defaults to True.
Raises
------
AttributeError
If `device` does not have a ``write()`` or ``flush()`` method.
Examples
--------
Besides ``sys.stdout``, a file-like object can also be used as it has
both required methods:
>>> from StringIO import StringIO
>>> buf = StringIO()
>>> np.disp('"Display" in a file', device=buf)
>>> buf.getvalue()
'"Display" in a file\\n'
"""
if device is None:
device = sys.stdout
if linefeed:
device.write('%s\n' % mesg)
else:
device.write('%s' % mesg)
device.flush()
return Example 7
def disp(mesg, device=None, linefeed=True):
"""
Display a message on a device.
Parameters
----------
mesg : str
Message to display.
device : object
Device to write message. If None, defaults to ``sys.stdout`` which is
very similar to ``print``. `device` needs to have ``write()`` and
``flush()`` methods.
linefeed : bool, optional
Option whether to print a line feed or not. Defaults to True.
Raises
------
AttributeError
If `device` does not have a ``write()`` or ``flush()`` method.
Examples
--------
Besides ``sys.stdout``, a file-like object can also be used as it has
both required methods:
>>> from StringIO import StringIO
>>> buf = StringIO()
>>> np.disp('"Display" in a file', device=buf)
>>> buf.getvalue()
'"Display" in a file\\n'
"""
if device is None:
device = sys.stdout
if linefeed:
device.write('%s\n' % mesg)
else:
device.write('%s' % mesg)
device.flush()
return Example 8
def pad_diffPatterns(Nx,Ny): #Kan dessa tex heta Nx och Ny när det finns glabala parameterar som heter det?
padded_diffPatterns = np.zeros((nbr_scans, Ny, Nx))
x = (Nx - diffSet.shape[2]) / 2
y = (Ny - diffSet.shape[1]) / 2
for i in range(0, nbr_scans):
padded_diffPatterns[i, y: y + diffSet.shape[1], x: x+ diffSet.shape[2]] = diffSet[i]
np.disp(Nx)
return padded_diffPatterns
#diffSet = pad_diffPatterns(350,350)# 350
# Sizes of centred cut and padded diffraction patterns Example 9
def disp(mesg, device=None, linefeed=True):
"""
Display a message on a device.
Parameters
----------
mesg : str
Message to display.
device : object
Device to write message. If None, defaults to ``sys.stdout`` which is
very similar to ``print``. `device` needs to have ``write()`` and
``flush()`` methods.
linefeed : bool, optional
Option whether to print a line feed or not. Defaults to True.
Raises
------
AttributeError
If `device` does not have a ``write()`` or ``flush()`` method.
Examples
--------
Besides ``sys.stdout``, a file-like object can also be used as it has
both required methods:
>>> from StringIO import StringIO
>>> buf = StringIO()
>>> np.disp('"Display" in a file', device=buf)
>>> buf.getvalue()
'"Display" in a file\\n'
"""
if device is None:
device = sys.stdout
if linefeed:
device.write('%s\n' % mesg)
else:
device.write('%s' % mesg)
device.flush()
return Example 10
def disp(mesg, device=None, linefeed=True):
"""
Display a message on a device.
Parameters
----------
mesg : str
Message to display.
device : object
Device to write message. If None, defaults to ``sys.stdout`` which is
very similar to ``print``. `device` needs to have ``write()`` and
``flush()`` methods.
linefeed : bool, optional
Option whether to print a line feed or not. Defaults to True.
Raises
------
AttributeError
If `device` does not have a ``write()`` or ``flush()`` method.
Examples
--------
Besides ``sys.stdout``, a file-like object can also be used as it has
both required methods:
>>> from StringIO import StringIO
>>> buf = StringIO()
>>> np.disp('"Display" in a file', device=buf)
>>> buf.getvalue()
'"Display" in a file\\n'
"""
if device is None:
device = sys.stdout
if linefeed:
device.write('%s\n' % mesg)
else:
device.write('%s' % mesg)
device.flush()
return
# See http://docs.scipy.org/doc/numpy/reference/c-api.generalized-ufuncs.html 