# -*- coding: utf-8 -*-
########### SVN repository information ###################
# $Date: 2023-05-11 18:08:12 -0500 (Thu, 11 May 2023) $
# $Author: toby $
# $Revision: 5577 $
# $URL: https://subversion.xray.aps.anl.gov/pyGSAS/trunk/imports/G2img_CheMin.py $
# $Id: G2img_CheMin.py 5577 2023-05-11 23:08:12Z toby $
########### SVN repository information ###################
'''
'''
from __future__ import division, print_function
import GSASIIobj as G2obj
import GSASIIpath
GSASIIpath.SetVersionNumber("$Revision: 5577 $")
[docs]
class png_ReaderClass(G2obj.ImportImage):
'''Reads standard PNG images; parameters are set to those of the
Mars Rover (CheMin) diffractometer.
'''
def __init__(self):
super(self.__class__,self).__init__( # fancy way to self-reference
extensionlist=('.png',),
strictExtension=True,
formatName = 'PNG image',
longFormatName = 'PNG image from CheMin'
)
[docs]
def ContentsValidator(self, filename):
'''no test at this time
'''
return True
[docs]
def Reader(self,filename, ParentFrame=None, **unused):
'''Reads using standard scipy PNG reader
'''
import scipy.misc
self.Image = scipy.misc.imread(filename,flatten=True)
self.Npix = self.Image.size
if self.Npix == 0:
return False
if ParentFrame:
self.SciPy = True
self.Comments = ['no metadata']
pixy = list(self.Image.shape)
sizexy = [40.,40.]
self.Data = {'wavelength': 1.78892, 'pixelSize': sizexy, 'distance': 18.0,'size':pixy,'det2theta':0.0}
self.Data['center'] = [pixy[0]*sizexy[0]/1000.,pixy[1]*sizexy[1]/2000.]
self.LoadImage(ParentFrame,filename)
return True