declarative

contact
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			#!/usr/bin/env python3
			# -- mode: python; coding: utf-8 --
			# vim: set ft=python:
			"""
			Read from stdin a surface profile and solve an elastic contact problem with
			load given as an argument.
			"""

			import argparse
			import sys

			import tamaas as tm
			import numpy as np

			from tamaas.dumpers import NumpyDumper

			__author__ = "Lucas Frérot"
			__copyright__ = (
			"Copyright (©) 2019-2022, EPFL (École Polytechnique Fédérale de Lausanne),"
			"\nLaboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)"
			)
			__license__ = "SPDX-License-Identifier: AGPL-3.0-or-later"

			tm.set_log_level(tm.LogLevel.error)

			parser = argparse.ArgumentParser(
			description="Compute the elastic contact solution with a given surface")

			parser.add_argument("--input", "-i",
			help="Rough surface file (default read from stdin)")
			parser.add_argument("--tol",
			type=float,
			default=1e-12,
			help="Solver tolerance")
			parser.add_argument("load",
			type=float,
			help="Applied average pressure")

			args = parser.parse_args()

			if not args.input:
			input = sys.stdin
			else:
			input = args.input

			surface = np.loadtxt(input)

			discretization = surface.shape
			system_size = [1., 1.]

			model = tm.ModelFactory.createModel(tm.model_type.basic_2d,
			system_size, discretization)
			solver = tm.PolonskyKeerRey(model, surface, args.tol)

			solver.solve(args.load)

			dumper = NumpyDumper('numpy', 'traction', 'displacement')
			dumper.dump_to_file(sys.stdout.buffer, model)