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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os, os.path
import sys
import vtk
from vtk.util.misc import vtkGetDataRoot
VTK_DATA_ROOT = vtkGetDataRoot()
# List of types and corresponding file extensions.
types = [[ 'ImageData', 'vti'],
['RectilinearGrid', 'vtr'],
['StructuredGrid', 'vts'],
['PolyData', 'vtp'],
['UnstructuredGrid', 'vtu']]
# We intentionally cause vtkErrorMacro calls to be made below. Dump
# errors to a file to prevent a window from coming up.
fow = vtk.vtkFileOutputWindow()
fow.SetFileName("TestEmptyXMLErrors.txt")
fow.SetFlush(0)
fow.SetInstance(fow)
# Prepare some test files.
f = open('emptyFile.vtk', 'wt')
f.close()
f = open('junkFile.vtk', 'wt')
f.write("v9np7598mapwcawoiur-,rjpmW9MJV28nun-q38ynq-9.8ugujqvt-8n3-nv8")
f.close()
# Test each writer/reader.
for t in types:
type = t[0]
ext = t[1]
input = eval('vtk.vtk' + type + '()')
writer = eval('vtk.vtkXML' + type + 'Writer()')
writer.SetFileName('empty' + type + '.' + ext)
sys.stdout.write('Attempting ' + type + ' write with no input.\n')
writer.Write()
sys.stdout.write('Attempting ' + type + ' write with empty input.\n')
writer.SetInputData(input)
writer.Write()
reader = eval('vtk.vtkXML' + type + 'Reader()')
reader.SetFileName('empty' + type + '.' + ext)
sys.stdout.write('Attempting read from file with empty ' + type + '.\n')
reader.Update()
pwriter = eval('vtk.vtkXMLP' + type + 'Writer()')
pwriter.SetFileName('emptyP' + type + '.p' + ext)
sys.stdout.write('Attempting P' + type + ' write with no input.\n')
pwriter.Write()
sys.stdout.write('Attempting P' + type + ' write with empty input.\n')
pwriter.SetInputData(input)
pwriter.Write()
preader = eval('vtk.vtkXMLP' + type + 'Reader()')
preader.SetFileName('emptyP' + type + '.p' + ext)
sys.stdout.write('Attempting read from file with empty P' + type + '.\n')
preader.Update()
reader.SetFileName("emptyFile.vtk")
preader.SetFileName("emptyFile.vtk")
sys.stdout.write('Attempting read ' + type + ' from empty file.\n')
reader.Update()
sys.stdout.write('Attempting read P' + type + ' from empty file.\n')
preader.Update()
reader.SetFileName("junkFile.vtk")
preader.SetFileName("junkFile.vtk")
sys.stdout.write('Attempting read ' + type + ' from junk file.\n')
reader.Update()
sys.stdout.write('Attempting read P' + type + ' from junk file.\n')
preader.Update()
del input
del writer
del reader
del pwriter
del preader
# Test the data set writers.
for t in types:
type = t[0]
ext = t[1]
writer = vtk.vtkXMLDataSetWriter()
pwriter = vtk.vtkXMLPDataSetWriter()
input = eval('vtk.vtk' + type + '()')
writer.SetFileName('empty' + type + 'DataSet.' + ext)
sys.stdout.write('Attempting DataSet ' + type + ' write with no input.\n')
writer.Write()
sys.stdout.write('Attempting DataSet ' + type + ' write with empty input.\n')
writer.SetInputData(input)
writer.Write()
pwriter.SetFileName('emptyP' + type + 'DataSet.p' + ext)
sys.stdout.write('Attempting DataSet ' + type + ' write with no input.\n')
pwriter.SetNumberOfPieces(1)
pwriter.Write()
sys.stdout.write('Attempting DataSet ' + type + ' write with empty input.\n')
pwriter.SetInputData(input)
pwriter.Write()
del input
del pwriter
del writer
# Done with the file output window.
fow.SetInstance(None)
del fow
# Delete the test files.
for t in types:
type = t[0]
ext = t[1]
os.remove('empty' + type + '.' + ext)
os.remove('empty' + type + 'DataSet.' + ext)
os.remove('emptyP' + type + '.p' + ext)
assert not os.path.exists('emptyP' + type + '_0.' + ext)
os.remove('emptyP' + type + 'DataSet.p' + ext)
assert not os.path.exists('emptyP' + type + 'DataSet_0.' + ext)
os.remove('junkFile.vtk')
os.remove('emptyFile.vtk')
os.remove('TestEmptyXMLErrors.txt')
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