185 lines
7.6 KiB
Python
Executable File
185 lines
7.6 KiB
Python
Executable File
#!/usr/bin/env python2.7
|
||
# -*- coding: UTF-8 no BOM -*-
|
||
|
||
import os,sys
|
||
import numpy as np
|
||
from optparse import OptionParser
|
||
from PIL import Image
|
||
import damask
|
||
|
||
scriptName = os.path.splitext(os.path.basename(__file__))[0]
|
||
scriptID = ' '.join([scriptName,damask.version])
|
||
|
||
# --------------------------------------------------------------------
|
||
# MAIN
|
||
# --------------------------------------------------------------------
|
||
|
||
parser = OptionParser(option_class=damask.extendableOption, usage='%prog options [file[s]]', description = """
|
||
Generate PNG image from data in given column (or 2D data of overall table).
|
||
|
||
""", version = scriptID)
|
||
|
||
parser.add_option('-l','--label',
|
||
dest = 'label',
|
||
type = 'string', metavar = 'string',
|
||
help = 'column containing data [all]')
|
||
parser.add_option('-r','--range',
|
||
dest = 'range',
|
||
type = 'float', nargs = 2, metavar = 'float float',
|
||
help = 'data range (min max) [auto]')
|
||
parser.add_option('--gap', '--transparent',
|
||
dest = 'gap',
|
||
type = 'float', metavar = 'float',
|
||
help = 'value to treat as transparent [%default]')
|
||
parser.add_option('-d','--dimension',
|
||
dest = 'dimension',
|
||
type = 'int', nargs = 2, metavar = 'int int',
|
||
help = 'data dimension (width height) [native]')
|
||
parser.add_option('--color',
|
||
dest = 'color',
|
||
type = 'string', metavar = 'string',
|
||
help = 'color scheme [%default]')
|
||
parser.add_option('--invert',
|
||
dest = 'invert',
|
||
action = 'store_true',
|
||
help = 'invert color scheme')
|
||
parser.add_option('--abs',
|
||
dest = 'abs',
|
||
action = 'store_true',
|
||
help = 'magnitude of values')
|
||
parser.add_option('--log',
|
||
dest = 'log',
|
||
action = 'store_true',
|
||
help = 'log10 of values')
|
||
parser.add_option('--fliplr',
|
||
dest = 'flipLR',
|
||
action = 'store_true',
|
||
help = 'flip around vertical axis')
|
||
parser.add_option('--flipud',
|
||
dest = 'flipUD',
|
||
action = 'store_true',
|
||
help = 'flip around horizontal axis')
|
||
parser.add_option('--crop',
|
||
dest = 'crop',
|
||
type = 'int', nargs = 4, metavar = 'int int int int',
|
||
help = 'pixels cropped on left, right, top, bottom')
|
||
parser.add_option('-N','--pixelsize',
|
||
dest = 'pixelsize',
|
||
type = 'int', metavar = 'int',
|
||
help = 'pixel per data point')
|
||
parser.add_option('-x','--pixelsizex',
|
||
dest = 'pixelsizex',
|
||
type = 'int', metavar = 'int',
|
||
help = 'pixel per data point along x')
|
||
parser.add_option('-y','--pixelsizey',
|
||
dest = 'pixelsizey',
|
||
type = 'int', metavar = 'int',
|
||
help = 'pixel per data point along y')
|
||
parser.add_option('--show',
|
||
dest = 'show',
|
||
action = 'store_true',
|
||
help = 'show resulting image')
|
||
|
||
parser.set_defaults(label = None,
|
||
range = [0.0,0.0],
|
||
gap = None,
|
||
dimension = [],
|
||
abs = False,
|
||
log = False,
|
||
flipLR = False,
|
||
flipUD = False,
|
||
color = "gray",
|
||
invert = False,
|
||
crop = [0,0,0,0],
|
||
pixelsize = 1,
|
||
pixelsizex = 1,
|
||
pixelsizey = 1,
|
||
show = False,
|
||
)
|
||
|
||
(options,filenames) = parser.parse_args()
|
||
|
||
if options.pixelsize > 1: (options.pixelsizex,options.pixelsizey) = [options.pixelsize]*2
|
||
|
||
# --- color palette ---------------------------------------------------------------------------------
|
||
|
||
theMap = damask.Colormap(predefined = options.color)
|
||
if options.invert: theMap = theMap.invert()
|
||
theColors = np.uint8(np.array(theMap.export(format = 'list',steps = 256))*255)
|
||
|
||
# --- loop over input files -------------------------------------------------------------------------
|
||
|
||
if filenames == []: filenames = [None]
|
||
|
||
for name in filenames:
|
||
try:
|
||
table = damask.ASCIItable(name = name,
|
||
buffered = False,
|
||
labeled = options.label is not None,
|
||
readonly = True)
|
||
except: continue
|
||
damask.util.report(scriptName,name)
|
||
|
||
# ------------------------------------------ read header ------------------------------------------
|
||
|
||
table.head_read()
|
||
|
||
# ------------------------------------------ process data ------------------------------------------
|
||
|
||
missing_labels = table.data_readArray(options.label)
|
||
if len(missing_labels) > 0:
|
||
damask.util.croak('column {} not found.'.format(options.label))
|
||
table.close(dismiss = True) # close ASCIItable and remove empty file
|
||
continue
|
||
# convert data to values between 0 and 1 and arrange according to given options
|
||
if options.dimension != []: table.data = table.data.reshape(options.dimension[1],options.dimension[0])
|
||
if options.abs: table.data = np.abs(table.data)
|
||
if options.log: table.data = np.log10(table.data);options.range = np.log10(options.range)
|
||
if options.flipLR: table.data = np.fliplr(table.data)
|
||
if options.flipUD: table.data = np.flipud(table.data)
|
||
|
||
mask = np.logical_or(table.data == options.gap, np.isnan(table.data))\
|
||
if options.gap else np.logical_not(np.isnan(table.data)) # mask gap and NaN (if gap present)
|
||
if np.all(np.array(options.range) == 0.0):
|
||
options.range = [table.data[mask].min(),
|
||
table.data[mask].max()]
|
||
damask.util.croak('data range: {0} – {1}'.format(*options.range))
|
||
|
||
delta = max(options.range) - min(options.range)
|
||
avg = 0.5*(max(options.range) + min(options.range))
|
||
|
||
if delta * 1e8 <= avg: # delta around numerical noise
|
||
options.range = [min(options.range) - 0.5*avg, max(options.range) + 0.5*avg] # extend range to have actual data centered within
|
||
|
||
table.data = (table.data - min(options.range)) / \
|
||
(max(options.range) - min(options.range))
|
||
|
||
table.data = np.clip(table.data,0.0,1.0).\
|
||
repeat(options.pixelsizex,axis = 1).\
|
||
repeat(options.pixelsizey,axis = 0)
|
||
|
||
mask = mask.\
|
||
repeat(options.pixelsizex,axis = 1).\
|
||
repeat(options.pixelsizey,axis = 0)
|
||
|
||
(height,width) = table.data.shape
|
||
damask.util.croak('image dimension: {0} x {1}'.format(width,height))
|
||
|
||
im = Image.fromarray(np.dstack((theColors[np.array(255*table.data,dtype = np.uint8)],
|
||
255*mask.astype(np.uint8))), 'RGBA').\
|
||
crop(( options.crop[0],
|
||
options.crop[2],
|
||
width -options.crop[1],
|
||
height-options.crop[3]))
|
||
|
||
# ------------------------------------------ output result -----------------------------------------
|
||
|
||
im.save(sys.stdout if not name else
|
||
os.path.splitext(name)[0]+ \
|
||
('' if options.label is None else '_'+options.label)+ \
|
||
'.png',
|
||
format = "PNG")
|
||
|
||
table.close() # close ASCII table
|
||
if options.show: im.show()
|