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# coding: utf-8
#
# Project: X-ray image reader
# https://github.com/silx-kit/fabio
#
#
# Copyright (C) European Synchrotron Radiation Facility, Grenoble, France
#
# Principal author: Jérôme Kieffer (Jerome.Kieffer@ESRF.eu)
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
"""
Authors: Henning O. Sorensen & Erik Knudsen
Center for Fundamental Research: Metal Structures in Four Dimensions
Risoe National Laboratory
Frederiksborgvej 399
DK-4000 Roskilde
email:erik.knudsen@risoe.dk
and Jon Wright, ESRF
"""
import logging
logger = logging.getLogger(__name__)
class fabiodata(object):
"""
A common class for dataIO in fable
Contains a 2d numpy array for keeping data, and two lists (clabels and rlabels)
containing labels for columns and rows respectively
"""
def __init__(self, data=None, clabels=None, rlabels=None, fname=None):
"""
set up initial values
"""
if isinstance(data, str):
raise RuntimeError("fabioimage.__init__ bad argument - " +
"data should be numpy array")
self.data = data
if (self.data):
self.dims = self.data.shape
self.clabels = clabels
self.rlabels = rlabels
if (fname):
self.read(fname)
def read(self, fname=None, frame=None):
"""
To be overridden by format specific subclasses
"""
raise Exception("Class has not implemented read method yet")
# import stuff from Jon's columnfile things
class columnfile(fabiodata):
"Concrete fabiodata class"
def read(self, fname, frame=None):
from .ext import cf_io
try:
infile = open(fname, 'rb')
except Exception:
logger.debug("Backtrace", exc_info=True)
raise Exception("columnfile: file" + str(fname) + "not found.")
try:
(self.data, self.clabels) = cf_io.read(infile)
except Exception:
logger.debug("Backtrace", exc_info=True)
raise Exception("columnfile: read error, file " + str(fname) + " possibly corrupt")
self.dims = self.data.shape
infile.close()
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