ContactMechanics.Tools package

Submodules

ContactMechanics.Tools.Logger module

Log status to screen or file

class ContactMechanics.Tools.Logger.Logger(logfile=<_io.TextIOWrapper name='<stdout>' mode='w' encoding='utf-8'>, outevery=1, sepevery=10)

Bases: object

Methods

flush
get_logfile
has_logfile
iteration_finished
pr
set_logfile
set_outevery
st
warn

flush()

get_logfile()

has_logfile()

iteration_finished()

pr(s, caller=None, logfile=None)

set_logfile(logfile)

set_outevery(outevery)

st(hdr, vals, force_print=False)

warn(s, caller=None)

ContactMechanics.Tools.Logger.flatten(x)

ContactMechanics.Tools.Logger.hdr_str(s, x): Return header description strings

ContactMechanics.Tools.Logger.hdrfmt_str(x, i): Return header format string for datatype x

ContactMechanics.Tools.Logger.numfmt_str(x, i): Return numeric format string for datatype x

ContactMechanics.Tools.common module

Bin for small common helper function and classes

ContactMechanics.Tools.common.compare_containers(cont_a, cont_b): compares whether two containers have the same content regardless of their type. eg, compares [1, 2, 3] and (1, 2., 3.) as True Keyword Arguments: cont_a – one container cont_b – other container

ContactMechanics.Tools.common.compute_wavevectors(nb_grid_pts, physical_sizes, nb_dims): computes and returns the wavevectors q that exist for the surfaces physical_sizes and nb_grid_pts as one vector of components per dimension

ContactMechanics.Tools.common.evaluate_gradient(fun, x, delta)

Don’t actually use this function in production code, it’s not efficient. Returns an approximation of the gradient evaluated using central differences.

(grad f)_i = ((f(x+e_i*delta/2)-f(x-e_i*delta/2))/delta)

Arguments: fun – function to be evaluated x – point of evaluation delta – step width

ContactMechanics.Tools.common.fftn(arr, integral)

n-dimensional fft according to the conventions detailed in power_spectrum.tex in the notes folder.

Keyword Arguments: arr – Input array, can be complex integral – depending of dimensionality:

1D: Length of domain 2D: Area etc

ContactMechanics.Tools.common.get_q_from_lambda(lambda_min, lambda_max): Conversion between wavelength and angular frequency

ContactMechanics.Tools.common.ifftn(arr, integral)

n-dimensional ifft according to the conventions detailed in power_spectrum.tex in the notes folder.

Keyword Arguments: arr – Input array, can be complex integral – depending of dimensionality:

1D: Length of domain 2D: Area etc

ContactMechanics.Tools.common.mean_err(arr1, arr2, rfft=False): computes the mean element-wise difference between two containers

Module contents

Helper tools for PyCo