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python Programming Glossary: lengFitting a 3D array of data to a 1D function with numpy or scipy http://stackoverflow.com/questions/15094619/fitting-a-3d-array-of-data-to-a-1d-function-with-numpy-or-scipy p3 x p4 #fit function def fit data guess n data.shape 0 leng np.arange n param pcov optimize.curve_fit f leng data guess.. 0 leng np.arange n param pcov optimize.curve_fit f leng data guess return param pcov where data is a threedimensional..
Image embossing in Python with PIL — adding depth, azimuth, etc http://stackoverflow.com/questions/2034037/image-embossing-in-python-with-pil-adding-depth-azimuth-etc grad # getting the unit incident ray gd numpy.cos ele # length of projection of ray on ground plane dx gd numpy.cos azi dy.. dep 100. # finding the unit normal vectors for the image leng numpy.sqrt grad_x 2 grad_y 2 1. uni_x grad_x leng uni_y grad_y.. image leng numpy.sqrt grad_x 2 grad_y 2 1. uni_x grad_x leng uni_y grad_y leng uni_z 1. leng # take the dot product a2 255..
Random strings in Python 2.6 (Is this OK?) http://stackoverflow.com/questions/785058/random-strings-in-python-2-6-is-this-ok string on my notebook in just about 3 seconds. def rand1 leng nbits leng 6 1 bits random.getrandbits nbits uc u 0x bits newlen.. my notebook in just about 3 seconds. def rand1 leng nbits leng 6 1 bits random.getrandbits nbits uc u 0x bits newlen int len.. newlen int len uc 2 2 # we have to make the string an even length ba bytearray.fromhex uc newlen return base64.urlsafe_b64encode..
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