#!D:\bld\medpy_1636629887875\_h_env\python.exe

"""
Creates an empty volume with the same attributes as the passes example image.

Copyright (C) 2013 Oskar Maier

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>."""

# build-in modules
import argparse
import logging

# third-party modules
import scipy

# path changes

# own modules
from medpy.core import Logger
from medpy.io import load, save


# information
__author__ = "Oskar Maier"
__version__ = "r0.1.0, 2012-08-24"
__email__ = "oskar.maier@googlemail.com"
__status__ = "Release"
__description__ = """
                  Creates an empty volume with the same attributes as the passes example image.
                
                  Copyright (C) 2013 Oskar Maier
                  This program comes with ABSOLUTELY NO WARRANTY; This is free software,
                  and you are welcome to redistribute it under certain conditions; see
                  the LICENSE file or <http://www.gnu.org/licenses/> for details.    
                  """

# code
def main():
    args = getArguments(getParser())
    
    # prepare logger
    logger = Logger.getInstance()
    if args.debug: logger.setLevel(logging.DEBUG)
    elif args.verbose: logger.setLevel(logging.INFO)
    
    # loading input image
    input_data, input_header = load(args.example)
    
    # create empty volume with same attributes
    output_data = scipy.zeros(input_data.shape, dtype=input_data.dtype)
    
    # save resulting image
    save(output_data, args.output, input_header, args.force)
        
    logger.info("Successfully terminated.")

    
def getArguments(parser):
    "Provides additional validation of the arguments collected by argparse."
    return parser.parse_args()

def getParser():
    "Creates and returns the argparse parser object."
    parser = argparse.ArgumentParser(description=__description__, formatter_class=argparse.RawTextHelpFormatter)
    parser.add_argument('example', help='The example volume.')
    parser.add_argument('output', help='Target volume.')
    parser.add_argument('-v', dest='verbose', action='store_true', help='Display more information.')
    parser.add_argument('-d', dest='debug', action='store_true', help='Display debug information.')
    parser.add_argument('-f', dest='force', action='store_true', help='Silently override existing output images.')
    return parser

if __name__ == "__main__":
    main() 