Update dtype and type hints for numpy arrays

gprMax/grid/fdtd_grid.py

@@ -24,6 +24,7 @@ from collections import OrderedDict
 from typing import Any, Iterable, List, Tuple, Union
 
 import numpy as np
+import numpy.typing as npt
 from terminaltables import AsciiTable
 from tqdm import tqdm
 from typing_extensions import TypeVar
@@ -61,28 +62,28 @@ class FDTDGrid:
         self.dt = 0.0
 
         # Field Arrays
-        self.Ex: np.ndarray[Any, np.dtype[np.single]]
-        self.Ey: np.ndarray[Any, np.dtype[np.single]]
-        self.Ez: np.ndarray[Any, np.dtype[np.single]]
-        self.Hx: np.ndarray[Any, np.dtype[np.single]]
-        self.Hy: np.ndarray[Any, np.dtype[np.single]]
-        self.Hz: np.ndarray[Any, np.dtype[np.single]]
+        self.Ex: npt.NDArray[np.single]
+        self.Ey: npt.NDArray[np.single]
+        self.Ez: npt.NDArray[np.single]
+        self.Hx: npt.NDArray[np.single]
+        self.Hy: npt.NDArray[np.single]
+        self.Hz: npt.NDArray[np.single]
 
         # Dispersive Arrays
-        self.Tx: np.ndarray[Any, np.dtype[np.single]]
-        self.Ty: np.ndarray[Any, np.dtype[np.single]]
-        self.Tz: np.ndarray[Any, np.dtype[np.single]]
+        self.Tx: npt.NDArray[np.single]
+        self.Ty: npt.NDArray[np.single]
+        self.Tz: npt.NDArray[np.single]
 
         # Geometry Arrays
-        self.solid: np.ndarray[Any, np.dtype[np.uint32]]
-        self.rigidE: np.ndarray[Any, np.dtype[np.int8]]
-        self.rigidH: np.ndarray[Any, np.dtype[np.int8]]
-        self.ID: np.ndarray[Any, np.dtype[np.uint32]]
+        self.solid: npt.NDArray[np.uint32]
+        self.rigidE: npt.NDArray[np.int8]
+        self.rigidH: npt.NDArray[np.int8]
+        self.ID: npt.NDArray[np.uint32]
 
         # Update Coefficient Arrays
-        self.updatecoeffsE: np.ndarray
-        self.updatecoeffsH: np.ndarray
-        self.updatecoeffsdispersive: np.ndarray
+        self.updatecoeffsE: npt.NDArray
+        self.updatecoeffsH: npt.NDArray
+        self.updatecoeffsdispersive: npt.NDArray
 
         # PML parameters - set some defaults to use if not user provided
         self.pmls = {}

gprMax/grid/mpi_grid.py

@@ -56,7 +56,7 @@ class MPIGrid(FDTDGrid):
     COORDINATOR_RANK = 0
 
     def __init__(self, comm: MPI.Cartcomm):
-        self.size = np.zeros(3, dtype=int)
+        self.size = np.zeros(3, dtype=np.intc)
 
         super().__init__()
 
@@ -66,12 +66,12 @@ class MPIGrid(FDTDGrid):
         self.z_comm = comm.Sub([True, True, False])
         self.pml_comm = MPI.COMM_NULL
 
-        self.mpi_tasks = np.array(self.comm.dims)
+        self.mpi_tasks = np.array(self.comm.dims, dtype=np.intc)
 
-        self.lower_extent: npt.NDArray[np.intc] = np.zeros(3, dtype=int)
-        self.upper_extent: npt.NDArray[np.intc] = np.zeros(3, dtype=int)
-        self.negative_halo_offset: npt.NDArray[np.bool_] = np.zeros(3, dtype=int)
-        self.global_size: npt.NDArray[np.intc] = np.zeros(3, dtype=int)
+        self.lower_extent = np.zeros(3, dtype=np.intc)
+        self.upper_extent = np.zeros(3, dtype=np.intc)
+        self.negative_halo_offset = np.zeros(3, dtype=np.bool_)
+        self.global_size = np.zeros(3, dtype=np.intc)
 
         self.neighbours = np.full((3, 2), -1, dtype=int)
         self.neighbours[Dim.X] = self.comm.Shift(direction=Dim.X, disp=1)

gprMax/receivers.py

@@ -17,7 +17,6 @@
 # along with gprMax.  If not, see <http://www.gnu.org/licenses/>.
 
 import numpy as np
-import numpy.typing as npt
 
 import gprMax.config as config
 
@@ -32,8 +31,8 @@ class Rx:
     def __init__(self):
         self.ID: str
         self.outputs = {}
-        self.coord: npt.NDArray[np.int_] = np.zeros(3, dtype=int)
-        self.coordorigin: npt.NDArray[np.int_] = np.zeros(3, dtype=int)
+        self.coord = np.zeros(3, dtype=np.intc)
+        self.coordorigin = np.zeros(3, dtype=np.intc)
 
     @property
     def xcoord(self) -> int:

gprMax/sources.py

@@ -33,8 +33,8 @@ class Source:
     def __init__(self):
         self.ID: str
         self.polarisation = None
-        self.coord: npt.NDArray[np.int_] = np.zeros(3, dtype=int)
-        self.coordorigin: npt.NDArray[np.int_] = np.zeros(3, dtype=int)
+        self.coord = np.zeros(3, dtype=np.intc)
+        self.coordorigin = np.zeros(3, dtype=np.intc)
         self.start = 0.0
         self.stop = 0.0
         self.waveform: Waveform