117 lines
4.1 KiB
Python
Executable File
117 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# -*- coding: UTF-8 no BOM -*-
|
|
|
|
import os,sys,vtk
|
|
import numpy as np
|
|
import damask
|
|
from optparse import OptionParser
|
|
|
|
|
|
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 = """
|
|
Create regular voxel grid from points in an ASCIItable.
|
|
|
|
""", version = scriptID)
|
|
|
|
parser.add_option('-m', '--mode',
|
|
dest = 'mode',
|
|
type = 'choice', choices = ['cell','point'],
|
|
help = 'cell-centered or point-centered coordinates ')
|
|
parser.add_option('-c', '--coordinates',
|
|
dest = 'position',
|
|
type = 'string', metavar = 'string',
|
|
help = 'coordinate label [%default]')
|
|
parser.set_defaults(position ='ipinitialcoord',
|
|
mode ='cell'
|
|
)
|
|
|
|
(options, filenames) = parser.parse_args()
|
|
|
|
# --- loop over input files -------------------------------------------------------------------------
|
|
|
|
if filenames == []: filenames = [None]
|
|
|
|
for name in filenames:
|
|
try:
|
|
table = damask.ASCIItable(name = name,
|
|
buffered = False, readonly = True)
|
|
except: continue
|
|
damask.util.report(scriptName,name)
|
|
|
|
# --- interpret header ----------------------------------------------------------------------------
|
|
|
|
table.head_read()
|
|
|
|
errors = []
|
|
if table.label_dimension(options.position) != 3:
|
|
errors.append('coordinates {} are not a vector.'.format(options.position))
|
|
|
|
if errors != []:
|
|
damask.util.croak(errors)
|
|
table.close(dismiss=True)
|
|
continue
|
|
|
|
# --------------- figure out size and grid ---------------------------------------------------------
|
|
|
|
table.data_readArray(options.position)
|
|
|
|
coords = [np.unique(table.data[:,i]) for i in xrange(3)]
|
|
if options.mode == 'cell':
|
|
coords = [0.5 * np.array([3.0 * coords[i][0] - coords[i][0 + len(coords[i]) > 1]] + \
|
|
[coords[i][j-1] + coords[i][j] for j in xrange(1,len(coords[i]))] + \
|
|
[3.0 * coords[i][-1] - coords[i][-1 - (len(coords[i]) > 1)]]) for i in xrange(3)]
|
|
grid = np.array(map(len,coords),'i')
|
|
N = grid.prod() if options.mode == 'point' else (grid-1).prod()
|
|
|
|
if N != len(table.data): errors.append('data count {} does not match grid {}x{}x{}.'.format(N,*(grid - options.mode == 'cell') ))
|
|
if errors != []:
|
|
damask.util.croak(errors)
|
|
table.close(dismiss = True)
|
|
continue
|
|
|
|
# ------------------------------------------ process data ---------------------------------------
|
|
|
|
rGrid = vtk.vtkRectilinearGrid()
|
|
coordArray = [vtk.vtkDoubleArray(),
|
|
vtk.vtkDoubleArray(),
|
|
vtk.vtkDoubleArray(),
|
|
]
|
|
|
|
rGrid.SetDimensions(*grid)
|
|
for i,points in enumerate(coords):
|
|
for point in points:
|
|
coordArray[i].InsertNextValue(point)
|
|
|
|
rGrid.SetXCoordinates(coordArray[0])
|
|
rGrid.SetYCoordinates(coordArray[1])
|
|
rGrid.SetZCoordinates(coordArray[2])
|
|
|
|
|
|
# ------------------------------------------ output result ---------------------------------------
|
|
|
|
if name:
|
|
writer = vtk.vtkXMLRectilinearGridWriter()
|
|
(directory,filename) = os.path.split(name)
|
|
writer.SetDataModeToBinary()
|
|
writer.SetCompressorTypeToZLib()
|
|
writer.SetFileName(os.path.join(directory,os.path.splitext(filename)[0] \
|
|
+'_{}({})'.format(options.position, options.mode) \
|
|
+'.'+writer.GetDefaultFileExtension()))
|
|
else:
|
|
writer = vtk.vtkDataSetWriter()
|
|
writer.WriteToOutputStringOn()
|
|
writer.SetHeader('# powered by '+scriptID)
|
|
|
|
if vtk.VTK_MAJOR_VERSION <= 5: writer.SetInput(rGrid)
|
|
else: writer.SetInputData(rGrid)
|
|
writer.Write()
|
|
if name is None: sys.stdout.write(writer.GetOutputString()[0:writer.GetOutputStringLength()])
|
|
|
|
table.close()
|