Added more options for checking PMLs

testing/models_pmls/pml_3D_pec_plate/plot_pml_comparison.py

@@ -0,0 +1,80 @@
+# Copyright (C) 2015-2023: The University of Edinburgh, United Kingdom
+#                 Authors: Craig Warren, Antonis Giannopoulos, and John Hartley
+#
+# This file is part of gprMax.
+#
+# gprMax is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# gprMax is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with gprMax.  If not, see <http://www.gnu.org/licenses/>.
+
+import itertools
+import logging
+from operator import add
+from pathlib import Path
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+from testing.diff_output_files import diff_output_files
+
+logger = logging.getLogger(__name__)
+
+# Create/setup plot figure
+# colors = ['#E60D30', '#5CB7C6', '#A21797', '#A3B347'] # Plot colours from http://tools.medialab.sciences-po.fr/iwanthue/index.php
+# colorIDs = ["#62a85b", "#9967c7", "#b3943f", "#6095cd", "#cb5c42", "#c95889"]
+colorIDs = ["#79c72e", "#5774ff", "#ff7c2c", "#4b4e80", "#d7004e", "#007545", "#ff83ec"]
+# colorIDs = ["#ba0044", "#b2d334", "#470055", "#185300", "#ff96b1", "#3e2700", "#0162a9", "#fdb786"]
+colors = itertools.cycle(colorIDs)
+# for i in range(2):
+#     next(colors)
+lines = itertools.cycle(("--", ":", "-.", "-"))
+markers = ["o", "d", "^", "s", "*"]
+
+fn = Path(__file__)
+basename = "pml_3D_pec_plate"
+PMLIDs = ["CFS-PML", "HORIPML-1", "HORIPML-2", "MRIPML-1", "MRIPML-2"]
+maxerrors = []
+testmodels = [basename + "_" + s for s in PMLIDs]
+
+fig, ax = plt.subplots(
+    subplot_kw=dict(xlabel="Iterations", ylabel="Error [dB]"), figsize=(20, 10), facecolor="w", edgecolor="w"
+)
+
+for x, model in enumerate(testmodels):
+    time, datadiffs = diff_output_files(fn.parent.joinpath(basename + "_ref.h5"), 
+                                        fn.parent.joinpath(basename + str(x + 1) + ".h5"))
+
+    # Print maximum error value
+    start = 210
+    maxerrors.append(f": {np.amax(datadiffs[start::, 1]):.1f} [dB]")
+    logger.info(f"{model}: Max. error {maxerrors[x]}")
+
+    # Plot diffs (select column to choose field component, 0-Ex, 1-Ey etc..)
+    ax.plot(time[start::], datadiffs[start::, 1], color=next(colors), lw=2, ls=next(lines), label=model)
+    ax.set_xticks(np.arange(0, 2200, step=100))
+    ax.set_xlim([0, 2100])
+    ax.set_yticks(np.arange(-160, 0, step=20))
+    ax.set_ylim([-160, -20])
+    ax.set_axisbelow(True)
+    ax.grid(color=(0.75, 0.75, 0.75), linestyle="dashed")
+
+mylegend = list(map(add, PMLIDs, maxerrors))
+legend = ax.legend(mylegend, loc=1, fontsize=14)
+frame = legend.get_frame()
+frame.set_edgecolor("white")
+frame.set_alpha(0)
+
+plt.show()
+
+# Save a PDF/PNG of the figure
+# fig.savefig(basepath + '.pdf', dpi=None, format='pdf', bbox_inches='tight', pad_inches=0.1)
+# fig.savefig(savename + '.png', dpi=150, format='png', bbox_inches='tight', pad_inches=0.1)