#!/usr/bin/env python3
############################################################
# Program is part of MintPy #
# Copyright (c) 2013, Zhang Yunjun, Heresh Fattahi #
# Author: Zhang Yunjun, Heresh Fattahi, 2013 #
############################################################
import os
import sys
import argparse
import numpy as np
from mintpy.utils import readfile, writefile
################################################################################
EXAMPLE = """example:
add.py mask_1.h5 mask_2.h5 mask_3.h5 -o mask_all.h5
add.py 081008_100220.unw 100220_110417.unw -o 081008_110417.unw
add.py timeseries_ERA5.h5 inputs/ERA5.h5 -o timeseries.h5
"""
def create_parser():
""" Command line parser """
parser = argparse.ArgumentParser(description='Generate sum of multiple input files.',
formatter_class=argparse.RawTextHelpFormatter,
epilog=EXAMPLE)
parser.add_argument('file', nargs='+', help='files (2 or more) to be added')
parser.add_argument('-o', '--output', dest='outfile', help='output file name')
return parser
def cmd_line_parse(iargs=None):
parser = create_parser()
inps = parser.parse_args(args=iargs)
if len(inps.file) < 2:
parser.print_usage()
sys.exit('ERROR: At least 2 input files needed!')
return inps
################################################################################
def add_matrix(data1, data2):
"""Sum of 2 input matrix"""
data1 = np.array(data1, dtype=np.float32)
data2 = np.array(data2, dtype=np.float32)
data = data1 + data2
data[np.isnan(data1)] = data2[np.isnan(data1)]
data[np.isnan(data2)] = data1[np.isnan(data2)]
return data
def add_file(fnames, out_file=None):
"""Generate sum of all input files
Parameters: fnames : list of str, path/name of input files to be added
out_file : str, optional, path/name of output file
Returns: out_file : str, path/name of output file
Example: 'mask_all.h5' = add_file(['mask_1.h5','mask_2.h5','mask_3.h5'], 'mask_all.h5')
"""
# Default output file name
ext = os.path.splitext(fnames[0])[1]
if not out_file:
out_file = os.path.splitext(fnames[0])[0]
for i in range(1, len(fnames)):
out_file += '_plus_' + os.path.splitext(os.path.basename(fnames[i]))[0]
out_file += ext
dsDict = {}
dsNames = readfile.get_dataset_list(fnames[0])
for dsName in dsNames:
# ignore dsName if input file has single dataset
if len(dsNames) == 1:
dsName2read = None
else:
dsName2read = dsName
print('adding {} ...'.format(dsName))
data = readfile.read(fnames[0], datasetName=dsName2read)[0]
for i in range(1, len(fnames)):
d = readfile.read(fnames[i], datasetName=dsName2read)[0]
data = add_matrix(data, d)
dsDict[dsName] = data
# output
atr = readfile.read_attribute(fnames[0])
print('use metadata from the 1st file: {}'.format(fnames[0]))
writefile.write(dsDict, out_file=out_file, metadata=atr, ref_file=fnames[0])
return out_file
################################################################################
def main(iargs=None):
inps = cmd_line_parse(iargs)
print('input files to be added: ({})\n{}'.format(len(inps.file), inps.file))
inps.outfile = add_file(inps.file, inps.outfile)
print('Done.')
return inps.outfile
################################################################################
if __name__ == '__main__':
main()