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""" This module loads the entire VTK library into its namespace. It
also allows one to use specific packages inside the vtk directory.."""
import os
import sys
# The dl module is used to force the symbols in the loaded VTK modules to
# be global, that is, to force symbols to be shared between modules. This
# used to be necessary in VTK 4 but might not be with VTK 5 and later.
# The first "except" is because systems like AIX don't have the dl module.
# The second "except" is because the dl module raises a system error on
# ia64 and x86_64 systems because "int" and addresses are different sizes.
try:
import dl
except ImportError:
dl = None
except SystemError:
dl = None
import __helper
# set the dlopen flags so that VTK does not run into problems with
# shared symbols.
try:
# only Python >= 2.2 has this functionality
orig_dlopen_flags = sys.getdlopenflags()
except AttributeError:
orig_dlopen_flags = None
if dl and (os.name == 'posix'):
sys.setdlopenflags(dl.RTLD_NOW|dl.RTLD_GLOBAL)
# Load all required kits.
from common import *
from filtering import *
from io import *
from imaging import *
from graphics import *
# the vtk.kits variable tells us which kits we actually have
kits = ['common', 'filtering', 'io', 'imaging', 'graphics']
# Try to load optional kits. The helper function checks if the
# ImportError is actually a link error.
try:
from genericfiltering import *
kits.append('genericfiltering')
except ImportError, exc:
__helper.refine_import_err('genericfiltering', 'vtkGenericFilteringPython',
exc)
try:
from rendering import *
kits.append('rendering')
except ImportError, exc:
__helper.refine_import_err('rendering', 'vtkRenderingPython', exc)
try:
from volumerendering import *
kits.append('volumerendering')
except ImportError, exc:
__helper.refine_import_err('volumerendering',
'vtkVolumeRenderingPython', exc)
try:
from hybrid import *
kits.append('hybrid')
except ImportError, exc:
__helper.refine_import_err('hybrid', 'vtkHybridPython', exc)
try:
from widgets import *
kits.append('widgets')
except ImportError, exc:
__helper.refine_import_err('widgets', 'vtkWidgetsPython', exc)
try:
from infovis import *
kits.append('infovis')
except ImportError, exc:
__helper.refine_import_err('infovis', 'vtkInfovisPython', exc)
try:
from views import *
kits.append('views')
except ImportError, exc:
__helper.refine_import_err('views', 'vtkViewsPython', exc)
try:
from parallel import *
kits.append('parallel')
except ImportError, exc:
__helper.refine_import_err('parallel', 'vtkParallelPython', exc)
# import useful VTK related constants.
from util.vtkConstants import *
# reset the dlopen flags to the original state if possible.
if dl and (os.name == 'posix') and orig_dlopen_flags:
sys.setdlopenflags(orig_dlopen_flags)
# removing things the user shouldn't have to see.
del __helper, orig_dlopen_flags
del sys, dl, os
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