Updated name of plane wave Cython module

gprMax/cython/plane_wave.pyx

@@ -1,3 +1,20 @@
+# Copyright (C) 2015-2025: 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 numpy as np
 cimport cython

gprMax/sources.py

@@ -25,7 +25,7 @@ import gprMax.config as config
 from .fields_outputs import Ix, Iy, Iz
 from .utilities.utilities import round_value
 
-from .cython.planeWaveModules import (
+from .cython.plane_wave import (
     getIntegerForAngles,
     getProjections,
     calculate1DWaveformValues,