你已经派生过 gprMax
镜像自地址
https://gitee.com/sunhf/gprMax.git
已同步 2025-08-07 15:10:13 +08:00
111 行
3.6 KiB
Python
111 行
3.6 KiB
Python
# Copyright (C) 2015-2024: The University of Edinburgh, United Kingdom
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# Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
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#
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# This file is part of gprMax.
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#
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# gprMax is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# gprMax is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with gprMax. If not, see <http://www.gnu.org/licenses/>.
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import argparse
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import logging
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from pathlib import Path
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import h5py
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import matplotlib.pyplot as plt
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import numpy as np
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logger = logging.getLogger(__name__)
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"""Plots a comparison of fields between given simulation output and experimental
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data files.
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"""
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# Parse command line arguments
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parser = argparse.ArgumentParser(
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description="Plots a comparison of fields between " + "given simulation output and experimental data files.",
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usage="cd gprMax; python -m testing.test_experimental modelfile realfile output",
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)
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parser.add_argument("modelfile", help="name of model output file including path")
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parser.add_argument("realfile", help="name of file containing experimental data including path")
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parser.add_argument("output", help="output to be plotted, i.e. Ex Ey Ez", nargs="+")
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args = parser.parse_args()
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modelfile = Path(args.modelfile)
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realfile = Path(args.realfile)
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# Model results
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f = h5py.File(Path(modelfile), "r")
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path = "/rxs/rx1/"
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availablecomponents = list(f[path].keys())
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# Check for polarity of output and if requested output is in file
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if args.output[0][0] == "m":
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polarity = -1
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args.outputs[0] = args.output[0][1:]
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else:
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polarity = 1
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if args.output[0] not in availablecomponents:
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logger.exception(
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f"{args.output[0]} output requested to plot, but the "
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+ f"available output for receiver 1 is {', '.join(availablecomponents)}"
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)
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raise ValueError
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floattype = f[path + args.output[0]].dtype
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iterations = f.attrs["Iterations"]
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dt = f.attrs["dt"]
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model = np.zeros(iterations, dtype=floattype)
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model = f[path + args.output[0]][:] * polarity
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model /= np.amax(np.abs(model))
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timemodel = np.linspace(0, 1, iterations)
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timemodel *= iterations * dt
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f.close()
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# Find location of maximum value from model
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modelmax = np.where(np.abs(model) == 1)[0][0]
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# Real results
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with open(realfile, "r") as f:
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real = np.loadtxt(f)
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real[:, 1] = real[:, 1] / np.amax(np.abs(real[:, 1]))
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realmax = np.where(np.abs(real[:, 1]) == 1)[0][0]
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difftime = -(timemodel[modelmax] - real[realmax, 0])
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# Plot modelled and real data
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fig, ax = plt.subplots(
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num=f"{modelfile.stem}_vs_{realfile.stem}",
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figsize=(20, 10),
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facecolor="w",
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edgecolor="w",
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)
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ax.plot(timemodel + difftime, model, "r", lw=2, label="Model")
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ax.plot(real[:, 0], real[:, 1], "r", ls="--", lw=2, label="Experiment")
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ax.set_xlabel("Time [s]")
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ax.set_ylabel("Amplitude")
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ax.set_xlim([0, timemodel[-1]])
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# ax.set_ylim([-1, 1])
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ax.legend()
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ax.grid()
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# Save a PDF/PNG of the figure
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savename = f"{modelfile.stem}_vs_{realfile.stem}"
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savename = modelfile.parent / savename
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# fig.savefig(savename.with_suffix('.pdf'), dpi=None, format='pdf',
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# bbox_inches='tight', pad_inches=0.1)
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# fig.savefig(savename.with_suffix('.png'), dpi=150, format='png',
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# bbox_inches='tight', pad_inches=0.1)
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plt.show()
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