DAMASK_EICMD/processing/post/vtk_pointCloud.py

74 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python3
import os
import sys
from io import StringIO
from optparse import OptionParser
import vtk
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 [ASCIItable(s)]', description = """
Produce a VTK point cloud dataset based on coordinates given in an ASCIItable.
""", version = scriptID)
parser.add_option('-p',
'--pos', '--position',
dest = 'pos',
type = 'string', metavar = 'string',
help = 'label of coordinates [%default]')
parser.set_defaults(pos = 'pos',
)
(options, filenames) = parser.parse_args()
if filenames == []: filenames = [None]
for name in filenames:
damask.util.report(scriptName,name)
table = damask.Table.from_ASCII(StringIO(''.join(sys.stdin.read())) if name is None else name)
# ------------------------------------------ process data ---------------------------------------
Polydata = vtk.vtkPolyData()
Points = vtk.vtkPoints()
Points.SetDataTypeToDouble()
for p in table.get(options.pos):
pointID = Points.InsertNextPoint(p)
Polydata.SetPoints(Points)
Polydata.Modified()
# ------------------------------------------ output result ---------------------------------------
if name:
writer = vtk.vtkXMLPolyDataWriter()
writer.SetCompressorTypeToZLib()
writer.SetDataModeToBinary()
writer.SetFileName(os.path.join(os.path.split(name)[0],
os.path.splitext(os.path.split(name)[1])[0] +
'.' + writer.GetDefaultFileExtension()))
else:
writer = vtk.vtkDataSetWriter()
writer.SetHeader('# powered by '+scriptID)
writer.WriteToOutputStringOn()
writer.SetInputData(Polydata)
writer.Write()
if name is None: sys.stdout.write(writer.GetOutputString())