# Copyright 2014 Diamond Light Source Ltd.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
.. module:: mrc
:platform: Unix
:synopsis: A module to load MRC image data.
.. moduleauthor:: Nicola Wadeson <scientificsoftware@diamond.ac.uk>
"""
from savu.data.data_structures.data_types.base_type import BaseType
import mrcfile
import numpy as np
[docs]class MRC(BaseType):
def __init__(self, Data, filename, stats=None):
self._data_obj = Data
self.filename = filename
super(MRC, self).__init__()
self.file = mrcfile.mmap(filename, 'r')
self.dtype = self.file.data.dtype
def __getitem__(self, idx):
data = self.file.data[idx].astype(np.float32)
data /= 65535.0
return data
[docs] def get_shape(self):
return self.file.data.shape
[docs] def clone_data_args(self, args, kwargs, extras):
args = ['self', 'filename']
kwargs['stats'] = 'stats'
return args, kwargs, extras
[docs] def close(self):
self.file.close()