114 lines
No EOL
4.7 KiB
Python
114 lines
No EOL
4.7 KiB
Python
import numpy as np
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fs = 18
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fs_titles = fs -4
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def plot_imshow_with_reference( data_list,
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reference,
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titles,
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vmin=None,
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vmax=None,
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cmap='viridis'):
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"""
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Plot the imshow of a list of 2D arrays with two rows: one for the data itself,
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one for the data compared to a reference. Each row will have a common colorbar.
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Parameters:
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- data_list: list of 2D arrays to be plotted
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- reference: 2D array to be used as reference for comparison
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- titles: list of titles for each subplot
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- cmap: colormap to be used for plotting
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"""
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import matplotlib.pyplot as plt
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if titles is None:
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titles = [None for f in data_list]
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def score(data, reference):
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return np.linalg.norm(data-reference)/np.linalg.norm(reference)
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n = len(data_list)
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fig, axes = plt.subplots(2, n, figsize=(5 * n, 10))
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if vmin is None or vmax is None:
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vmin = min(np.quantile(data,0.01) for data in data_list)
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vmax = max(np.quantile(data,0.99) for data in data_list)
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vmin_diff = min(np.quantile((data-reference),0.01) for data in data_list)
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vmax_diff = max(np.quantile((data-reference),0.99) for data in data_list)
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else:
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vmin_diff = vmin
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vmax_diff = vmax
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# Plot the data itself
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for i, data in enumerate(data_list):
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im = axes[0, i].imshow(data, cmap=cmap, origin='lower', vmin=vmin, vmax=vmax)
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axes[0, i].set_title(titles[i], fontsize=fs_titles)
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fig.colorbar(im, ax=axes[0, :], orientation='vertical')
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# Plot the data compared to the reference
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for i, data in enumerate(data_list):
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im = axes[1, i].imshow(data - reference, cmap=cmap, origin='lower', vmin=vmin_diff, vmax=vmax_diff)
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axes[1, i].set_title(f'{titles[i]} - Reference', fontsize=fs_titles)
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fig.colorbar(im, ax=axes[1, :], orientation='vertical')
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# Add the score on the plots
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for i, data in enumerate(data_list):
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axes[1, i].text(0.5, 0.9, f"Score: {score(data, reference):.2e}", fontsize=10, transform=axes[1, i].transAxes, color='white')
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# plt.tight_layout()
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return fig, axes
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if __name__ == "__main__":
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from argparse import ArgumentParser
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parser = ArgumentParser(description='Comparisons of fields slices.')
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parser.add_argument('-a','--axis', type=int, default=0, help='Axis along which the slices will be taken.')
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parser.add_argument('-i','--index', type=int, default=None, help='Index of the slice along the axis.')
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parser.add_argument('-d', '--directory', type=str, required=True, help='Directory containing the fields files.')
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parser.add_argument('-ref', '--reference', type=str, default=None, help='Reference field file.')
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parser.add_argument('-f', '--filenames', type=str, nargs='+', required=True, help='Field files to be plotted.')
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parser.add_argument('-o', '--output', type=str, default=None, help='Output plot file name.')
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parser.add_argument('-l', '--labels', type=str, nargs='+', default=None, help='Labels for each field.')
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parser.add_argument('-c', '--cmap', type=str, default='viridis', help='Colormap to be used for plotting.')
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parser.add_argument('-vmin', type=float, default=None, help='Minimum value for the colorbar.')
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parser.add_argument('-vmax', type=float, default=None, help='Maximum value for the colorbar.')
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parser.add_argument('-t', '--title', type=str, default=None, help='Title for the plot.')
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parser.add_argument('-log','--log_scale', action='store_true', help='Use log scale for the data.')
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args = parser.parse_args()
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from pysbmy.field import read_field
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ref_field = read_field(args.directory+args.reference)
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fields = [read_field(args.directory+f) for f in args.filenames]
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if args.index is None:
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index = ref_field.N0//2
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else:
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index=args.index
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match args.axis:
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case 0 | 'x':
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reference = ref_field.data[index,:,:]
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fields = [f.data[index,:,:] for f in fields]
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case 1 | 'y':
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reference = ref_field.data[:,index,:]
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fields = [f.data[:,index,:] for f in fields]
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case 2 | 'z':
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reference = ref_field.data[:,:,index]
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fields = [f.data[:,:,index] for f in fields]
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case _:
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raise ValueError(f"Wrong axis provided : {args.axis}")
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if args.log_scale:
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reference = np.log10(2.+reference)
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fields = [np.log10(2.+f) for f in fields]
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fig, axes = plot_imshow_with_reference(fields,reference,args.labels, vmin=args.vmin, vmax=args.vmax,cmap=args.cmap)
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fig.suptitle(args.title)
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if args.output is not None:
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fig.savefig(args.output)
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else:
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fig.savefig(args.directory+'slices.png') |