64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
# download src_ref_files from Zenodo
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import os
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import numpy as np
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import sys
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try:
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from pytomoatt.model import ATTModel
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from pytomoatt.checkerboard import Checker
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from pytomoatt.src_rec import SrcRec
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except:
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print("ERROR: ATTModel not found. Please install pytomoatt first."
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"See https://tomoatt.github.io/PyTomoATT/installation.html for details.")
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sys.exit(1)
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class BuildInitialModel():
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def __init__(self, par_file="./3_input_params/input_params_signal.yaml", output_dir="2_models"):
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"""
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Build initial model for tomography inversion
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"""
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self.am = ATTModel(par_file)
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self.output_dir = output_dir
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def build_initial_model(self, vel_min=5.0, vel_max=8.0):
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"""
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Build initial model for tomography inversion
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"""
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self.am.vel[self.am.depths < 0, :, :] = vel_min
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idx = np.where((0 <= self.am.depths) & (self.am.depths < 40.0))[0]
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self.am.vel[idx, :, :] = np.linspace(vel_min, vel_max, idx.size)[::-1][:, np.newaxis, np.newaxis]
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self.am.vel[self.am.depths >= 40.0, :, :] = vel_max
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def build_ckb_model(output_dir="2_models"):
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cbk = Checker(f'{output_dir}/model_init_N61_61_61.h5', para_fname="./3_input_params/input_params_signal.yaml")
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cbk.checkerboard(
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n_pert_x=2, n_pert_y=2, n_pert_z=2,
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pert_vel=0.2, pert_ani=0.1, ani_dir=60.0,
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lim_x=[0.5, 1.5], lim_y=[0.5, 1.5], lim_z=[0, 40]
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)
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cbk.write(f'{output_dir}/model_ckb_N61_61_61.h5')
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if __name__ == "__main__":
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# download src_rec_config.dat
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url = 'https://zenodo.org/records/14053821/files/src_rec_config.dat'
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path = "1_src_rec_files/src_rec_config.dat"
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os.makedirs(os.path.dirname(path), exist_ok=True)
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if not os.path.exists(path):
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sr = SrcRec.read(url)
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sr.write(path)
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# build initial model
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output_dir = "2_models"
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os.makedirs(output_dir, exist_ok=True)
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bim = BuildInitialModel(output_dir=output_dir)
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bim.build_initial_model()
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bim.am.write('{}/model_init_N{:d}_{:d}_{:d}.h5'.format(bim.output_dir, *bim.am.n_rtp))
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# build ckb model
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build_ckb_model(output_dir)
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