Phasefield figure finalised, moving to documentation repository

simulations/10_beacon_phase_field.py

@@ -1,5 +1,12 @@
 #!/usr/bin/env python3
 
+__doc__ = \
+"""
+Generate a figure showing a value combining
+the delays between a transmitter and a set of antennas
+"""
+
+
 import matplotlib.pyplot as plt
 import numpy as np
 from itertools import chain, combinations, product
@@ -53,7 +60,6 @@ def grid_plot(grid, ax=None, **plot_kwargs):
     for x_,y_,l_ in zip(x,y,l):
         ax.annotate(l_,(x_,y_))
 
-
 def antenna_combinations(ants, ref_ant=None):
     if ref_ant is not None: # use only one reference antenna for the baselines
         ref = ref_ant
@@ -113,9 +119,6 @@ def plot_field(tx, ants, xx, yy, val, ax=None, ref_ant=None, color_label='$\\lef
         default_scatter_kwargs['vmax'] = len(ants)*np.pi
         #default_scatter_kwargs['cmap'] = 'gray'
         pass
-    else:
-        val *=1e9 # to ns
-        default_scatter_kwargs['vmax'] = 100
 
     scatter_kwargs = {**default_scatter_kwargs, **scatter_kwargs}
 
@@ -131,7 +134,6 @@ def plot_field(tx, ants, xx, yy, val, ax=None, ref_ant=None, color_label='$\\lef
 
     return ax
 
-
 def square_grid(dx=1, N_x=10, dy=None, N_y=None, x_start=0, y_start=0):
     N_y = N_x if N_y is None else N_y
     dy = dx if dy is None else dy
@@ -154,36 +156,60 @@ def triangular_grid(dx=1, N_x=10, dy=None, N_y=None, x_start=0, y_start=0):
 
 
 if __name__ == "__main__":
+    from argparse import ArgumentParser
+    import os.path as path
 
-    ###
-    ### Field
-    ###
-    x_low, x_high, N_x = -1203, 300, 81
-    y_low, y_high, N_y = -x_low, -x_high, N_x
+    parser = ArgumentParser(description=__doc__)
+    parser.add_argument("fname", metavar="path/to/figure[/]", nargs="?", help="Location for generated figure, will append __file__ if a directory. If not supplied, figure is shown.")
 
-    ###
-    ### Geometry
-    ###
-    tx = Antenna(x=-800,y=300,z=0,name="tx")
 
-    if True: # single baseline
+    parser.add_argument("type", choices=['single-left', 'single-center', 'square', 'tri', 'preset'])
+
+
+    command_group = parser.add_mutually_exclusive_group(required=True)
+    command_group.add_argument('--time',  help='Use the time difference for the field', action='store_false')
+    command_group.add_argument('--phase', help='Use wrapped phase for the field', action='store_true')
+
+    parser.add_argument('--ref', dest='ref_ant', metavar='ref_antenna', help='Number of antenna to use as reference')
+
+    args = parser.parse_args()
+
+    if args.fname is not None and path.isdir(args.fname):
+        args.fname = path.join(args.fname, path.splitext(path.basename(__file__))[0] + ".pdf")
+
+    args.plot_phase = args.phase or args.time
+    del args.time, args.phase
+
+
+    if 'single' in args.type: # single baseline
+        ### Field
+        x_low, x_high, N_x = -300, 300, 81
+        y_low, y_high, N_y = -300, 300, 81
+
+        ### Geometry
         ants = [
                 Antenna(x=-50,y=0,z=0,name="a"),
                 Antenna(x=50,y=0,z=0,name="b"),
             ]
 
-        tx = Antenna(x=-000,y=200,z=0,name="tx")
+        if args.type == 'single-center':
+            tx = Antenna(x=-000,y=200,z=0,name="tx")
+        else:
+            tx = Antenna(x=-200,y=200,z=0,name="tx")
 
-        x_low, x_high, N_x = -300, 300, 81
-        y_low, y_high, N_y = -300, 300, 81
+    elif args.type == 'square' or args.type == 'tri': # from grid definition
+        ### Field
+        x_low, x_high, N_x = -1800, 1800, 161
+        y_low, y_high, N_y = -x_low, -x_high, N_x
 
-    elif not True: # from grid definition
+        ### Geometry
+        tx = Antenna(x=-800,y=300,z=0,name="tx")
         x_start, dx, ant_N_x = 0, 50, 2
         y_start, dy, ant_N_y = 0, dx, ant_N_x
 
-        if not True: # square grid
+        if args.type == 'square': # square grid
             grid_func = square_grid
-        elif True: # triangular
+        elif args.type == 'tri': # triangular
             grid_func = triangular_grid
 
         grid = grid_func(dx=dx, dy=dy, N_x=ant_N_x, N_y=ant_N_y, x_start=x_start, y_start=y_start)
@@ -191,6 +217,12 @@ if __name__ == "__main__":
 
         ants = [ Antenna(x=x,y=y,z=0,name=i) for i, (x,y) in enumerate(grid) ]
     else:
+        ### Field
+        x_low, x_high, N_x = -400, 400, 161
+        y_low, y_high, N_y = -x_low, -x_high, N_x
+
+        ### Geometry
+        tx = Antenna(x=-300,y=300,z=0,name="tx")
         ants = [
                 Antenna(x=100,y=0,z=0,name="a"),
                 Antenna(x=0,y=-50,z=0,name="b"),
@@ -201,13 +233,12 @@ if __name__ == "__main__":
     ###
     ### Options
     ###
-    plot_phase = True
-    ref_ant = None
+    plot_phase = args.plot_phase
+    ref_ant = args.ref_ant
+
 
     ant_combi = antenna_combinations(ants, ref_ant=ref_ant)
 
-    print("Antenna Combinations calculated")
-
     xs = np.linspace(x_low, x_high, N_x)
     ys = np.linspace(y_low, y_high, N_y)
 
@@ -218,13 +249,15 @@ if __name__ == "__main__":
         mask = abs(val) > np.pi
 
 
+    kwargs = {}
     if plot_phase:
         color_label='$\\sqrt{ \\sum \\left(\\varphi(x) - \\Delta \\varphi\\right)^2}$'
     else:
         color_label='$\\sqrt{ \\sum \\left(t(x) - \\Delta t\\right)^2}$ [ns]'
         val *= 1e9
+        kwargs['vmax'] = 100
 
-    ax = plot_field(tx, ants, xx, yy, val, ax=None, ref_ant=ref_ant, mask=mask, color_label=color_label)
+    ax = plot_field(tx, ants, xx, yy, val, ax=None, ref_ant=ref_ant, mask=mask, color_label=color_label, **kwargs)
     
 #    if plot_phase:
 #        N_lowest = np.min(len(ant_combi)-1, 10)
@@ -233,4 +266,8 @@ if __name__ == "__main__":
 #        print(lowest_idx)
 #        print(val[lowest_idx])
 #        print( list(zip(np.array(xx)[lowest_idx], np.array(yy)[lowest_idx])) )
-    plt.show()
+
+    if args.fname is not None:
+        plt.savefig(args.fname)
+    else:
+        plt.show()