From a87da89d9426017485ea0b0a2bca93893527e38b Mon Sep 17 00:00:00 2001
From: Sai-Suraj-27 <sai.suraj.27.729@gmail.com>
Date: Fri, 4 Aug 2023 00:21:33 +0530
Subject: [PATCH] Removed un-necessary concatenations while using f-strings.

---
 gprMax/cmds_geometry/add_grass.py             | 36 +++++------
 gprMax/cmds_geometry/add_surface_roughness.py | 60 +++++++++----------
 gprMax/cmds_geometry/add_surface_water.py     | 18 +++---
 gprMax/cmds_geometry/box.py                   |  6 +-
 gprMax/cmds_geometry/cone.py                  | 10 ++--
 gprMax/cmds_geometry/cylinder.py              |  6 +-
 gprMax/cmds_geometry/cylindrical_sector.py    | 28 ++++-----
 gprMax/cmds_geometry/edge.py                  |  4 +-
 gprMax/cmds_geometry/ellipsoid.py             | 10 ++--
 gprMax/cmds_geometry/fractal_box.py           | 42 +++++--------
 gprMax/cmds_geometry/fractal_box_builder.py   |  4 +-
 gprMax/cmds_geometry/geometry_objects_read.py | 16 ++---
 gprMax/cmds_geometry/plate.py                 |  4 +-
 gprMax/cmds_geometry/sphere.py                |  6 +-
 gprMax/cmds_geometry/triangle.py              | 14 ++---
 15 files changed, 126 insertions(+), 138 deletions(-)

diff --git a/gprMax/cmds_geometry/add_grass.py b/gprMax/cmds_geometry/add_grass.py
index a76689b1..377fea97 100644
--- a/gprMax/cmds_geometry/add_grass.py
+++ b/gprMax/cmds_geometry/add_grass.py
@@ -98,11 +98,11 @@ class AddGrass(UserObjectGeometry):
         xf, yf, zf = p2
 
         if frac_dim < 0:
-            logger.exception(f"{self.__str__()} requires a positive value for " + "the fractal dimension")
+            logger.exception(f"{self.__str__()} requires a positive value for the fractal dimension")
             raise ValueError
         if limits[0] < 0 or limits[1] < 0:
             logger.exception(
-                f"{self.__str__()} requires a positive value for " + "the minimum and maximum heights for grass blades"
+                f"{self.__str__()} requires a positive value for the minimum and maximum heights for grass blades"
             )
             raise ValueError
 
@@ -118,7 +118,7 @@ class AddGrass(UserObjectGeometry):
             # xminus surface
             if xs == volume.xs:
                 logger.exception(
-                    f"{self.__str__()} grass can only be specified " + "on surfaces in the positive axis direction"
+                    f"{self.__str__()} grass can only be specified on surfaces in the positive axis direction"
                 )
                 raise ValueError
             # xplus surface
@@ -126,8 +126,8 @@ class AddGrass(UserObjectGeometry):
                 if fractalrange[1] > grid.nx:
                     logger.exception(
                         f"{self.__str__()} cannot apply grass to "
-                        + "fractal box as it would exceed the domain "
-                        + "size in the x direction"
+                        "fractal box as it would exceed the domain "
+                        "size in the x direction"
                     )
                     raise ValueError
                 requestedsurface = "xplus"
@@ -143,7 +143,7 @@ class AddGrass(UserObjectGeometry):
             # yminus surface
             if ys == volume.ys:
                 logger.exception(
-                    f"{self.__str__()} grass can only be specified " + "on surfaces in the positive axis direction"
+                    f"{self.__str__()} grass can only be specified on surfaces in the positive axis direction"
                 )
                 raise ValueError
             # yplus surface
@@ -151,8 +151,8 @@ class AddGrass(UserObjectGeometry):
                 if fractalrange[1] > grid.ny:
                     logger.exception(
                         f"{self.__str__()} cannot apply grass to "
-                        + "fractal box as it would exceed the domain "
-                        + "size in the y direction"
+                        "fractal box as it would exceed the domain "
+                        "size in the y direction"
                     )
                     raise ValueError
                 requestedsurface = "yplus"
@@ -165,7 +165,7 @@ class AddGrass(UserObjectGeometry):
             # zminus surface
             if zs == volume.zs:
                 logger.exception(
-                    f"{self.__str__()} grass can only be specified " + "on surfaces in the positive axis direction"
+                    f"{self.__str__()} grass can only be specified on surfaces in the positive axis direction"
                 )
                 raise ValueError
             # zplus surface
@@ -173,8 +173,8 @@ class AddGrass(UserObjectGeometry):
                 if fractalrange[1] > grid.nz:
                     logger.exception(
                         f"{self.__str__()} cannot apply grass to "
-                        + "fractal box as it would exceed the domain "
-                        + "size in the z direction"
+                        "fractal box as it would exceed the domain "
+                        "size in the z direction"
                     )
                     raise ValueError
                 requestedsurface = "zplus"
@@ -195,7 +195,7 @@ class AddGrass(UserObjectGeometry):
         if n_blades > surface.fractalsurface.shape[0] * surface.fractalsurface.shape[1]:
             logger.exception(
                 f"{self.__str__()} the specified surface is not large "
-                + "enough for the number of grass blades/roots specified"
+                "enough for the number of grass blades/roots specified"
             )
             raise ValueError
 
@@ -244,7 +244,7 @@ class AddGrass(UserObjectGeometry):
         if testgrass:
             logger.exception(
                 f"{self.__str__()} requires the time step for the "
-                + "model to be less than the relaxation time required to model grass."
+                "model to be less than the relaxation time required to model grass."
             )
             raise ValueError
 
@@ -252,9 +252,9 @@ class AddGrass(UserObjectGeometry):
 
         logger.info(
             f"{self.grid_name(grid)}{n_blades} blades of grass on surface from "
-            + f"{xs * grid.dx:g}m, {ys * grid.dy:g}m, {zs * grid.dz:g}m, "
-            + f"to {xf * grid.dx:g}m, {yf * grid.dy:g}m, {zf * grid.dz:g}m "
-            + f"with fractal dimension {surface.dimension:g}, fractal seeding "
-            + f"{surface.seed}, and range {limits[0]:g}m to {limits[1]:g}m, "
-            + f"added to {surface.operatingonID}."
+            f"{xs * grid.dx:g}m, {ys * grid.dy:g}m, {zs * grid.dz:g}m, "
+            f"to {xf * grid.dx:g}m, {yf * grid.dy:g}m, {zf * grid.dz:g}m "
+            f"with fractal dimension {surface.dimension:g}, fractal seeding "
+            f"{surface.seed}, and range {limits[0]:g}m to {limits[1]:g}m, "
+            f"added to {surface.operatingonID}."
         )
diff --git a/gprMax/cmds_geometry/add_surface_roughness.py b/gprMax/cmds_geometry/add_surface_roughness.py
index a79898a5..a0755230 100644
--- a/gprMax/cmds_geometry/add_surface_roughness.py
+++ b/gprMax/cmds_geometry/add_surface_roughness.py
@@ -82,8 +82,8 @@ class AddSurfaceRoughness(UserObjectGeometry):
         except KeyError:
             logger.warning(
                 f"{self.__str__()} no value for seed detected. This "
-                + "means you will get a different fractal distribution "
-                + "every time the model runs."
+                "means you will get a different fractal distribution "
+                "every time the model runs."
             )
             seed = None
 
@@ -108,13 +108,13 @@ class AddSurfaceRoughness(UserObjectGeometry):
         if weighting[0] < 0:
             logger.exception(
                 f"{self.__str__()} requires a positive value for the "
-                + "fractal weighting in the first direction of the surface"
+                "fractal weighting in the first direction of the surface"
             )
             raise ValueError
         if weighting[1] < 0:
             logger.exception(
                 f"{self.__str__()} requires a positive value for the "
-                + "fractal weighting in the second direction of the surface"
+                "fractal weighting in the second direction of the surface"
             )
             raise ValueError
 
@@ -124,7 +124,7 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 logger.exception(f"{self.__str__()} dimensions are not specified correctly")
                 raise ValueError
             if xs not in [volume.xs, volume.xf]:
-                logger.exception(f"{self.__str__()} can only be used on the external " + "surfaces of a fractal box")
+                logger.exception(f"{self.__str__()} can only be used on the external surfaces of a fractal box")
                 raise ValueError
             fractalrange = (round_value(limits[0] / grid.dx), round_value(limits[1] / grid.dx))
             # xminus surface
@@ -132,9 +132,9 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 if fractalrange[0] < 0 or fractalrange[1] > volume.xf:
                     logger.exception(
                         f"{self.__str__()} cannot apply fractal surface "
-                        + "to fractal box as it would exceed either the "
-                        + "upper coordinates of the fractal box or the "
-                        + "domain in the x direction"
+                        "to fractal box as it would exceed either the "
+                        "upper coordinates of the fractal box or the "
+                        "domain in the x direction"
                     )
                     raise ValueError
                 requestedsurface = "xminus"
@@ -143,9 +143,9 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 if fractalrange[0] < volume.xs or fractalrange[1] > grid.nx:
                     logger.exception(
                         f"{self.__str__()} cannot apply fractal surface "
-                        + "to fractal box as it would exceed either the "
-                        + "lower coordinates of the fractal box or the "
-                        + "domain in the x direction"
+                        "to fractal box as it would exceed either the "
+                        "lower coordinates of the fractal box or the "
+                        "domain in the x direction"
                     )
                     raise ValueError
                 requestedsurface = "xplus"
@@ -163,9 +163,9 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 if fractalrange[0] < 0 or fractalrange[1] > volume.yf:
                     logger.exception(
                         f"{self.__str__()} cannot apply fractal surface "
-                        + "to fractal box as it would exceed either the "
-                        + "upper coordinates of the fractal box or the "
-                        + "domain in the y direction"
+                        "to fractal box as it would exceed either the "
+                        "upper coordinates of the fractal box or the "
+                        "domain in the y direction"
                     )
                     raise ValueError
                 requestedsurface = "yminus"
@@ -174,9 +174,9 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 if fractalrange[0] < volume.ys or fractalrange[1] > grid.ny:
                     logger.exception(
                         f"{self.__str__()} cannot apply fractal surface "
-                        + "to fractal box as it would exceed either the "
-                        + "lower coordinates of the fractal box or the "
-                        + "domain in the y direction"
+                        "to fractal box as it would exceed either the "
+                        "lower coordinates of the fractal box or the "
+                        "domain in the y direction"
                     )
                     raise ValueError
                 requestedsurface = "yplus"
@@ -191,9 +191,9 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 if fractalrange[0] < 0 or fractalrange[1] > volume.zf:
                     logger.exception(
                         f"{self.__str__()} cannot apply fractal surface "
-                        + "to fractal box as it would exceed either the "
-                        + "upper coordinates of the fractal box or the "
-                        + "domain in the x direction"
+                        "to fractal box as it would exceed either the "
+                        "upper coordinates of the fractal box or the "
+                        "domain in the x direction"
                     )
                     raise ValueError
                 requestedsurface = "zminus"
@@ -202,9 +202,9 @@ class AddSurfaceRoughness(UserObjectGeometry):
                 if fractalrange[0] < volume.zs or fractalrange[1] > grid.nz:
                     logger.exception(
                         f"{self.__str__()} cannot apply fractal surface "
-                        + "to fractal box as it would exceed either the "
-                        + "lower coordinates of the fractal box or the "
-                        + "domain in the z direction"
+                        "to fractal box as it would exceed either the "
+                        "lower coordinates of the fractal box or the "
+                        "domain in the z direction"
                     )
                     raise ValueError
                 requestedsurface = "zplus"
@@ -226,7 +226,7 @@ class AddSurfaceRoughness(UserObjectGeometry):
         # List of existing surfaces IDs
         existingsurfaceIDs = [x.surfaceID for x in volume.fractalsurfaces]
         if surface.surfaceID in existingsurfaceIDs:
-            logger.exception(f"{self.__str__()} has already been used on the " + f"{surface.surfaceID} surface")
+            logger.exception(f"{self.__str__()} has already been used on the {surface.surfaceID} surface")
             raise ValueError
 
         surface.generate_fractal_surface()
@@ -234,10 +234,10 @@ class AddSurfaceRoughness(UserObjectGeometry):
 
         logger.info(
             f"{self.grid_name(grid)}Fractal surface from {xs * grid.dx:g}m, "
-            + f"{ys * grid.dy:g}m, {zs * grid.dz:g}m, to {xf * grid.dx:g}m, "
-            + f"{yf * grid.dy:g}m, {zf * grid.dz:g}m with fractal dimension "
-            + f"{surface.dimension:g}, fractal weightings {surface.weighting[0]:g}, "
-            + f"{surface.weighting[1]:g}, fractal seeding {surface.seed}, "
-            + f"and range {limits[0]:g}m to {limits[1]:g}m, added to "
-            + f"{surface.operatingonID}."
+            f"{ys * grid.dy:g}m, {zs * grid.dz:g}m, to {xf * grid.dx:g}m, "
+            f"{yf * grid.dy:g}m, {zf * grid.dz:g}m with fractal dimension "
+            f"{surface.dimension:g}, fractal weightings {surface.weighting[0]:g}, "
+            f"{surface.weighting[1]:g}, fractal seeding {surface.seed}, "
+            f"and range {limits[0]:g}m to {limits[1]:g}m, added to "
+            f"{surface.operatingonID}."
         )
diff --git a/gprMax/cmds_geometry/add_surface_water.py b/gprMax/cmds_geometry/add_surface_water.py
index 47e1f654..be271d9b 100644
--- a/gprMax/cmds_geometry/add_surface_water.py
+++ b/gprMax/cmds_geometry/add_surface_water.py
@@ -85,7 +85,7 @@ class AddSurfaceWater(UserObjectGeometry):
         xf, yf, zf = p2
 
         if depth <= 0:
-            logger.exception(f"{self.__str__()} requires a positive value for the " + f"depth of water")
+            logger.exception(f"{self.__str__()} requires a positive value for the depth of water")
             raise ValueError
 
         # Check for valid orientations
@@ -94,7 +94,7 @@ class AddSurfaceWater(UserObjectGeometry):
                 logger.exception(f"{self.__str__()} dimensions are not specified correctly")
                 raise ValueError
             if xs not in [volume.xs, volume.xf]:
-                logger.exception(f"{self.__str__()} can only be used on the external surfaces " f"of a fractal box")
+                logger.exception(f"{self.__str__()} can only be used on the external surfaces of a fractal box")
                 raise ValueError
             # xminus surface
             if xs == volume.xs:
@@ -110,7 +110,7 @@ class AddSurfaceWater(UserObjectGeometry):
                 logger.exception(f"{self.__str__()} dimensions are not specified correctly")
                 raise ValueError
             if ys not in [volume.ys, volume.yf]:
-                logger.exception(f"{self.__str__()} can only be used on the external surfaces " + f"of a fractal box")
+                logger.exception(f"{self.__str__()} can only be used on the external surfaces of a fractal box")
                 raise ValueError
             # yminus surface
             if ys == volume.ys:
@@ -123,7 +123,7 @@ class AddSurfaceWater(UserObjectGeometry):
 
         elif zs == zf:
             if zs not in [volume.zs, volume.zf]:
-                logger.exception(f"{self.__str__()} can only be used on the external surfaces " f"of a fractal box")
+                logger.exception(f"{self.__str__()} can only be used on the external surfaces of a fractal box")
                 raise ValueError
             # zminus surface
             if zs == volume.zs:
@@ -141,7 +141,7 @@ class AddSurfaceWater(UserObjectGeometry):
         surface = next((x for x in volume.fractalsurfaces if x.surfaceID == requestedsurface), None)
         if not surface:
             logger.exception(
-                f"{self.__str__()} specified surface {requestedsurface} " + f"does not have a rough surface applied"
+                f"{self.__str__()} specified surface {requestedsurface} does not have a rough surface applied"
             )
             raise ValueError
 
@@ -151,7 +151,7 @@ class AddSurfaceWater(UserObjectGeometry):
         if surface.filldepth < surface.fractalrange[0] or surface.filldepth > surface.fractalrange[1]:
             logger.exception(
                 f"{self.__str__()} requires a value for the depth of water that lies with the "
-                + f"range of the requested surface roughness"
+                f"range of the requested surface roughness"
             )
             raise ValueError
 
@@ -170,7 +170,7 @@ class AddSurfaceWater(UserObjectGeometry):
 
         logger.info(
             f"{self.grid_name(grid)}Water on surface from {xs * grid.dx:g}m, "
-            + f"{ys * grid.dy:g}m, {zs * grid.dz:g}m, to {xf * grid.dx:g}m, "
-            + f"{yf * grid.dy:g}m, {zf * grid.dz:g}m with depth {filldepth:g}m, "
-            + f"added to {surface.operatingonID}."
+            f"{ys * grid.dy:g}m, {zs * grid.dz:g}m, to {xf * grid.dx:g}m, "
+            f"{yf * grid.dy:g}m, {zf * grid.dz:g}m with depth {filldepth:g}m, "
+            f"added to {surface.operatingonID}."
         )
diff --git a/gprMax/cmds_geometry/box.py b/gprMax/cmds_geometry/box.py
index 41b3cfcd..161b9b3c 100644
--- a/gprMax/cmds_geometry/box.py
+++ b/gprMax/cmds_geometry/box.py
@@ -157,7 +157,7 @@ class Box(UserObjectGeometry):
 
         logger.info(
             f"{self.grid_name(grid)}Box from {p5[0]:g}m, {p5[1]:g}m, "
-            + f"{p5[2]:g}m, to {p6[0]:g}m, {p6[1]:g}m, {p6[2]:g}m of "
-            + f"material(s) {', '.join(materialsrequested)} created, "
-            + f"dielectric smoothing is {dielectricsmoothing}."
+            f"{p5[2]:g}m, to {p6[0]:g}m, {p6[1]:g}m, {p6[2]:g}m of "
+            f"material(s) {', '.join(materialsrequested)} created, "
+            f"dielectric smoothing is {dielectricsmoothing}."
         )
diff --git a/gprMax/cmds_geometry/cone.py b/gprMax/cmds_geometry/cone.py
index e81040c9..aa1926c0 100644
--- a/gprMax/cmds_geometry/cone.py
+++ b/gprMax/cmds_geometry/cone.py
@@ -85,11 +85,11 @@ class Cone(UserObjectGeometry):
         x2, y2, z2 = uip.round_to_grid(p2)
 
         if r1 < 0:
-            logger.exception(f"{self.__str__()} the radius of the first face " + f"{r1:g} should be a positive value.")
+            logger.exception(f"{self.__str__()} the radius of the first face {r1:g} should be a positive value.")
             raise ValueError
 
         if r2 < 0:
-            logger.exception(f"{self.__str__()} the radius of the second face " + f"{r2:g} should be a positive value.")
+            logger.exception(f"{self.__str__()} the radius of the second face {r2:g} should be a positive value.")
             raise ValueError
 
         if r1 == 0 and r2 == 0:
@@ -158,7 +158,7 @@ class Cone(UserObjectGeometry):
         dielectricsmoothing = "on" if averaging else "off"
         logger.info(
             f"{self.grid_name(grid)}Cone with face centres {p3[0]:g}m, "
-            + f"{p3[1]:g}m, {p3[2]:g}m and {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m, "
-            + f"with radii {r1:g}m and {r2:g}, of material(s) {', '.join(materialsrequested)} "
-            + f"created, dielectric smoothing is {dielectricsmoothing}."
+            f"{p3[1]:g}m, {p3[2]:g}m and {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m, "
+            f"with radii {r1:g}m and {r2:g}, of material(s) {', '.join(materialsrequested)} "
+            f"created, dielectric smoothing is {dielectricsmoothing}."
         )
diff --git a/gprMax/cmds_geometry/cylinder.py b/gprMax/cmds_geometry/cylinder.py
index aac7b143..0fa75233 100644
--- a/gprMax/cmds_geometry/cylinder.py
+++ b/gprMax/cmds_geometry/cylinder.py
@@ -146,7 +146,7 @@ class Cylinder(UserObjectGeometry):
         dielectricsmoothing = "on" if averaging else "off"
         logger.info(
             f"{self.grid_name(grid)}Cylinder with face centres {p3[0]:g}m, "
-            + f"{p3[1]:g}m, {p3[2]:g}m and {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m, "
-            + f"with radius {r:g}m, of material(s) {', '.join(materialsrequested)} "
-            + f"created, dielectric smoothing is {dielectricsmoothing}."
+            f"{p3[1]:g}m, {p3[2]:g}m and {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m, "
+            f"with radius {r:g}m, of material(s) {', '.join(materialsrequested)} "
+            f"created, dielectric smoothing is {dielectricsmoothing}."
         )
diff --git a/gprMax/cmds_geometry/cylindrical_sector.py b/gprMax/cmds_geometry/cylindrical_sector.py
index 1f9d4dde..6308fb1d 100644
--- a/gprMax/cmds_geometry/cylindrical_sector.py
+++ b/gprMax/cmds_geometry/cylindrical_sector.py
@@ -94,17 +94,15 @@ class CylindricalSector(UserObjectGeometry):
         sectorangle = 2 * np.pi * (end / 360)
 
         if normal not in ["x", "y", "z"]:
-            logger.exception(f"{self.__str__()} the normal direction must be either " + f"x, y or z.")
+            logger.exception(f"{self.__str__()} the normal direction must be either x, y or z.")
             raise ValueError
         if r <= 0:
             logger.exception(f"{self.__str__()} the radius {r:g} should be a positive value.")
         if sectorstartangle < 0 or sectorangle <= 0:
-            logger.exception(f"{self.__str__()} the starting angle and sector angle should be " + f"a positive values.")
+            logger.exception(f"{self.__str__()} the starting angle and sector angle should be a positive values.")
             raise ValueError
         if sectorstartangle >= 2 * np.pi or sectorangle >= 2 * np.pi:
-            logger.exception(
-                f"{self.__str__()} the starting angle and sector angle must be " + f"less than 360 degrees."
-            )
+            logger.exception(f"{self.__str__()} the starting angle and sector angle must be less than 360 degrees.")
             raise ValueError
 
         # Look up requested materials in existing list of material instances
@@ -195,18 +193,18 @@ class CylindricalSector(UserObjectGeometry):
             dielectricsmoothing = "on" if averaging else "off"
             logger.info(
                 f"{self.grid_name(grid)}Cylindrical sector with centre "
-                + f"{ctr1:g}m, {ctr2:g}m, radius {r:g}m, starting angle "
-                + f"{(sectorstartangle / (2 * np.pi)) * 360:.1f} degrees, "
-                + f"sector angle {(sectorangle / (2 * np.pi)) * 360:.1f} degrees, "
-                + f"thickness {thickness:g}m, of material(s) {', '.join(materialsrequested)} "
-                + f"created, dielectric smoothing is {dielectricsmoothing}."
+                f"{ctr1:g}m, {ctr2:g}m, radius {r:g}m, starting angle "
+                f"{(sectorstartangle / (2 * np.pi)) * 360:.1f} degrees, "
+                f"sector angle {(sectorangle / (2 * np.pi)) * 360:.1f} degrees, "
+                f"thickness {thickness:g}m, of material(s) {', '.join(materialsrequested)} "
+                f"created, dielectric smoothing is {dielectricsmoothing}."
             )
         else:
             logger.info(
                 f"{self.grid_name(grid)}Cylindrical sector with centre "
-                + f"{ctr1:g}m, {ctr2:g}m, radius {r:g}m, starting angle "
-                + f"{(sectorstartangle / (2 * np.pi)) * 360:.1f} degrees, "
-                + f"sector angle {(sectorangle / (2 * np.pi)) * 360:.1f} "
-                + f"degrees, of material(s) {', '.join(materialsrequested)} "
-                + f"created."
+                f"{ctr1:g}m, {ctr2:g}m, radius {r:g}m, starting angle "
+                f"{(sectorstartangle / (2 * np.pi)) * 360:.1f} degrees, "
+                f"sector angle {(sectorangle / (2 * np.pi)) * 360:.1f} "
+                f"degrees, of material(s) {', '.join(materialsrequested)} "
+                f"created."
             )
diff --git a/gprMax/cmds_geometry/edge.py b/gprMax/cmds_geometry/edge.py
index 0e1c6302..27d2c525 100644
--- a/gprMax/cmds_geometry/edge.py
+++ b/gprMax/cmds_geometry/edge.py
@@ -103,6 +103,6 @@ class Edge(UserObjectGeometry):
 
         logger.info(
             f"{self.grid_name(grid)}Edge from {p3[0]:g}m, {p3[1]:g}m, "
-            + f"{p3[2]:g}m, to {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m of "
-            + f"material {material_id} created."
+            f"{p3[2]:g}m, to {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m of "
+            f"material {material_id} created."
         )
diff --git a/gprMax/cmds_geometry/ellipsoid.py b/gprMax/cmds_geometry/ellipsoid.py
index e72a904a..ebd12ce9 100644
--- a/gprMax/cmds_geometry/ellipsoid.py
+++ b/gprMax/cmds_geometry/ellipsoid.py
@@ -53,7 +53,7 @@ class Ellipsoid(UserObjectGeometry):
             zr = self.kwargs["zr"]
 
         except KeyError:
-            logger.exception(f"{self.__str__()} please specify a point and " + f"the three semiaxes.")
+            logger.exception(f"{self.__str__()} please specify a point and the three semiaxes.")
             raise
 
         # Check averaging
@@ -140,8 +140,8 @@ class Ellipsoid(UserObjectGeometry):
         dielectricsmoothing = "on" if averaging else "off"
         logger.info(
             f"{self.grid_name(grid)}Ellipsoid with centre {p2[0]:g}m, "
-            + f"{p2[1]:g}m, {p2[2]:g}m, x-semiaxis {xr:g}m, "
-            + f"y-semiaxis {yr:g}m and z-semiaxis {zr:g}m of material(s) "
-            + f"{', '.join(materialsrequested)} created, dielectric "
-            + f"smoothing is {dielectricsmoothing}."
+            f"{p2[1]:g}m, {p2[2]:g}m, x-semiaxis {xr:g}m, "
+            f"y-semiaxis {yr:g}m and z-semiaxis {zr:g}m of material(s) "
+            f"{', '.join(materialsrequested)} created, dielectric "
+            f"smoothing is {dielectricsmoothing}."
         )
diff --git a/gprMax/cmds_geometry/fractal_box.py b/gprMax/cmds_geometry/fractal_box.py
index 1aea4a8c..57a2c045 100644
--- a/gprMax/cmds_geometry/fractal_box.py
+++ b/gprMax/cmds_geometry/fractal_box.py
@@ -87,8 +87,8 @@ class FractalBox(UserObjectGeometry):
         except KeyError:
             logger.warning(
                 f"{self.__str__()} no value for seed detected. This "
-                + "means you will get a different fractal distribution "
-                + "every time the model runs."
+                "means you will get a different fractal distribution "
+                "every time the model runs."
             )
             seed = None
 
@@ -112,24 +112,18 @@ class FractalBox(UserObjectGeometry):
         xf, yf, zf = p2
 
         if frac_dim < 0:
-            logger.exception(f"{self.__str__()} requires a positive value for the " + "fractal dimension")
+            logger.exception(f"{self.__str__()} requires a positive value for the fractal dimension")
             raise ValueError
         if weighting[0] < 0:
-            logger.exception(
-                f"{self.__str__()} requires a positive value for the " + "fractal weighting in the x direction"
-            )
+            logger.exception(f"{self.__str__()} requires a positive value for the fractal weighting in the x direction")
             raise ValueError
         if weighting[1] < 0:
-            logger.exception(
-                f"{self.__str__()} requires a positive value for the " + "fractal weighting in the y direction"
-            )
+            logger.exception(f"{self.__str__()} requires a positive value for the fractal weighting in the y direction")
             raise ValueError
         if weighting[2] < 0:
-            logger.exception(
-                f"{self.__str__()} requires a positive value for the " + "fractal weighting in the z direction"
-            )
+            logger.exception(f"{self.__str__()} requires a positive value for the fractal weighting in the z direction")
         if n_materials < 0:
-            logger.exception(f"{self.__str__()} requires a positive value for the " + "number of bins")
+            logger.exception(f"{self.__str__()} requires a positive value for the number of bins")
             raise ValueError
 
         # Find materials to use to build fractal volume, either from mixing
@@ -140,15 +134,11 @@ class FractalBox(UserObjectGeometry):
 
         if mixingmodel:
             if nbins == 1:
-                logger.exception(
-                    f"{self.__str__()} must be used with more than " + "one material from the mixing model."
-                )
+                logger.exception(f"{self.__str__()} must be used with more than one material from the mixing model.")
                 raise ValueError
             if isinstance(mixingmodel, ListMaterial) and nbins > len(mixingmodel.mat):
                 logger.exception(
-                    f"{self.__str__()} too many materials/bins "
-                    + "requested compared to materials in "
-                    + "mixing model."
+                    f"{self.__str__()} too many materials/bins " "requested compared to materials in " "mixing model."
                 )
                 raise ValueError
             # Create materials from mixing model as number of bins now known
@@ -173,13 +163,13 @@ class FractalBox(UserObjectGeometry):
         dielectricsmoothing = "on" if volume.averaging else "off"
         logger.info(
             f"{self.grid_name(grid)}Fractal box {volume.ID} from "
-            + f"{p3[0]:g}m, {p3[1]:g}m, {p3[2]:g}m, to {p4[0]:g}m, "
-            + f"{p4[1]:g}m, {p4[2]:g}m with {volume.operatingonID}, "
-            + f"fractal dimension {volume.dimension:g}, fractal weightings "
-            + f"{volume.weighting[0]:g}, {volume.weighting[1]:g}, "
-            + f"{volume.weighting[2]:g}, fractal seeding {volume.seed}, "
-            + f"with {volume.nbins} material(s) created, dielectric smoothing "
-            + f"is {dielectricsmoothing}."
+            f"{p3[0]:g}m, {p3[1]:g}m, {p3[2]:g}m, to {p4[0]:g}m, "
+            f"{p4[1]:g}m, {p4[2]:g}m with {volume.operatingonID}, "
+            f"fractal dimension {volume.dimension:g}, fractal weightings "
+            f"{volume.weighting[0]:g}, {volume.weighting[1]:g}, "
+            f"{volume.weighting[2]:g}, fractal seeding {volume.seed}, "
+            f"with {volume.nbins} material(s) created, dielectric smoothing "
+            f"is {dielectricsmoothing}."
         )
 
         grid.fractalvolumes.append(volume)
diff --git a/gprMax/cmds_geometry/fractal_box_builder.py b/gprMax/cmds_geometry/fractal_box_builder.py
index d680c9e0..bf18de5a 100644
--- a/gprMax/cmds_geometry/fractal_box_builder.py
+++ b/gprMax/cmds_geometry/fractal_box_builder.py
@@ -388,8 +388,8 @@ class FractalBoxBuilder(UserObjectGeometry):
                 if volume.nbins == 1:
                     logger.exception(
                         f"{self.__str__()} is being used with a "
-                        + "single material and no modifications, "
-                        + "therefore please use a #box command instead."
+                        "single material and no modifications, "
+                        "therefore please use a #box command instead."
                     )
                     raise ValueError
                 else:
diff --git a/gprMax/cmds_geometry/geometry_objects_read.py b/gprMax/cmds_geometry/geometry_objects_read.py
index e8e487d5..5697df94 100644
--- a/gprMax/cmds_geometry/geometry_objects_read.py
+++ b/gprMax/cmds_geometry/geometry_objects_read.py
@@ -108,8 +108,8 @@ class GeometryObjectsRead(UserObjectGeometry):
         ):
             logger.exception(
                 f"{self.__str__()} requires the spatial resolution "
-                + "of the geometry objects file to match the spatial "
-                + "resolution of the model"
+                "of the geometry objects file to match the spatial "
+                "resolution of the model"
             )
             raise ValueError
 
@@ -134,9 +134,9 @@ class GeometryObjectsRead(UserObjectGeometry):
             grid.ID[:, xs : xs + ID.shape[1], ys : ys + ID.shape[2], zs : zs + ID.shape[3]] = ID + numexistmaterials
             logger.info(
                 f"{self.grid_name(grid)}Geometry objects from file {geofile} "
-                + f"inserted at {xs * grid.dx:g}m, {ys * grid.dy:g}m, "
-                + f"{zs * grid.dz:g}m, with corresponding materials file "
-                + f"{matfile}."
+                f"inserted at {xs * grid.dx:g}m, {ys * grid.dy:g}m, "
+                f"{zs * grid.dz:g}m, with corresponding materials file "
+                f"{matfile}."
             )
         except KeyError:
             averaging = False
@@ -155,7 +155,7 @@ class GeometryObjectsRead(UserObjectGeometry):
             )
             logger.info(
                 f"{self.grid_name(grid)}Geometry objects from file "
-                + f"(voxels only){geofile} inserted at {xs * grid.dx:g}m, "
-                + f"{ys * grid.dy:g}m, {zs * grid.dz:g}m, with corresponding "
-                + f"materials file {matfile}."
+                f"(voxels only){geofile} inserted at {xs * grid.dx:g}m, "
+                f"{ys * grid.dy:g}m, {zs * grid.dz:g}m, with corresponding "
+                f"materials file {matfile}."
             )
diff --git a/gprMax/cmds_geometry/plate.py b/gprMax/cmds_geometry/plate.py
index 005fa535..9246107e 100644
--- a/gprMax/cmds_geometry/plate.py
+++ b/gprMax/cmds_geometry/plate.py
@@ -148,6 +148,6 @@ class Plate(UserObjectGeometry):
 
         logger.info(
             f"{self.grid_name(grid)}Plate from {p3[0]:g}m, {p3[1]:g}m, "
-            + f"{p3[2]:g}m, to {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m of "
-            + f"material(s) {', '.join(materialsrequested)} created."
+            f"{p3[2]:g}m, to {p4[0]:g}m, {p4[1]:g}m, {p4[2]:g}m of "
+            f"material(s) {', '.join(materialsrequested)} created."
         )
diff --git a/gprMax/cmds_geometry/sphere.py b/gprMax/cmds_geometry/sphere.py
index 796340e9..27211b19 100644
--- a/gprMax/cmds_geometry/sphere.py
+++ b/gprMax/cmds_geometry/sphere.py
@@ -133,7 +133,7 @@ class Sphere(UserObjectGeometry):
         dielectricsmoothing = "on" if averaging else "off"
         logger.info(
             f"{self.grid_name(grid)}Sphere with centre {p2[0]:g}m, "
-            + f"{p2[1]:g}m, {p2[2]:g}m, radius {r:g}m, of material(s) "
-            + f"{', '.join(materialsrequested)} created, dielectric "
-            + f"smoothing is {dielectricsmoothing}."
+            f"{p2[1]:g}m, {p2[2]:g}m, radius {r:g}m, of material(s) "
+            f"{', '.join(materialsrequested)} created, dielectric "
+            f"smoothing is {dielectricsmoothing}."
         )
diff --git a/gprMax/cmds_geometry/triangle.py b/gprMax/cmds_geometry/triangle.py
index de6235f3..a0aed311 100644
--- a/gprMax/cmds_geometry/triangle.py
+++ b/gprMax/cmds_geometry/triangle.py
@@ -205,15 +205,15 @@ class Triangle(UserObjectGeometry):
             dielectricsmoothing = "on" if averaging else "off"
             logger.info(
                 f"{self.grid_name(grid)}Triangle with coordinates "
-                + f"{p4[0]:g}m {p4[1]:g}m {p4[2]:g}m, {p5[0]:g}m {p5[1]:g}m "
-                + f"{p5[2]:g}m, {p6[0]:g}m {p6[1]:g}m {p6[2]:g}m and thickness "
-                + f"{thickness:g}m of material(s) {', '.join(materialsrequested)} "
-                + f"created, dielectric smoothing is {dielectricsmoothing}."
+                f"{p4[0]:g}m {p4[1]:g}m {p4[2]:g}m, {p5[0]:g}m {p5[1]:g}m "
+                f"{p5[2]:g}m, {p6[0]:g}m {p6[1]:g}m {p6[2]:g}m and thickness "
+                f"{thickness:g}m of material(s) {', '.join(materialsrequested)} "
+                f"created, dielectric smoothing is {dielectricsmoothing}."
             )
         else:
             logger.info(
                 f"{self.grid_name(grid)}Triangle with coordinates "
-                + f"{p4[0]:g}m {p4[1]:g}m {p4[2]:g}m, {p5[0]:g}m {p5[1]:g}m "
-                + f"{p5[2]:g}m, {p6[0]:g}m {p6[1]:g}m {p6[2]:g}m of material(s) "
-                + f"{', '.join(materialsrequested)} created."
+                f"{p4[0]:g}m {p4[1]:g}m {p4[2]:g}m, {p5[0]:g}m {p5[1]:g}m "
+                f"{p5[2]:g}m, {p6[0]:g}m {p6[1]:g}m {p6[2]:g}m of material(s) "
+                f"{', '.join(materialsrequested)} created."
             )