def initialize():
""" initialize() -> None
Package-entry to initialize the package
"""
# Check VTK version
v = vtksnl.vtkVersion()
version = [v.GetVTKMajorVersion(),
v.GetVTKMinorVersion(),
v.GetVTKBuildVersion()]
if version < [5, 0, 0]:
raise Exception("You need to upgrade your VTK install to version \
> >= 5.0.0")
inheritanceGraph = ClassTree(vtksnl)
inheritanceGraph.create()
# Transfer Function constant
tf_widget.initialize()
delayed = InstanceObject(add_input_port=[])
# Add VTK modules
registry = get_module_registry()
registry.add_module(vtkBaseModule)
createAllModules(inheritanceGraph)
setAllPorts(registry.get_descriptor_by_name(identifier,
'vtkObjectBase'),
delayed)
# Register the VTKCell and VTKHandler type if the spreadsheet is up
if registry.has_module('edu.utah.sci.vistrails.spreadsheet',
'SpreadsheetCell'):
import vtkhandler
import vtkcell
import vtkviewcell
vtkhandler.registerSelf()
vtkcell.registerSelf()
vtkviewcell.registerSelf()
# register offscreen rendering module
offscreen.register_self()
# Now add all "delayed" ports - see comment on addSetGetPorts
for args in delayed.add_input_port:
registry.add_input_port(*args)
# register Transfer Function adjustment
# This can't be reordered -- TransferFunction needs to go before
# vtkVolumeProperty, but vtkScaledTransferFunction needs
# to go after vtkAlgorithmOutput
getter = registry.get_descriptor_by_name
registry.add_module(tf_widget.vtkScaledTransferFunction)
registry.add_input_port(tf_widget.vtkScaledTransferFunction,
'Input', getter('edu.utah.sci.vistrails.vtksnl',
'vtkAlgorithmOutput').module)
registry.add_input_port(tf_widget.vtkScaledTransferFunction,
'Dataset', getter ('edu.utah.sci.vistrails.vtksnl',
'vtkDataObject').module)
registry.add_input_port(tf_widget.vtkScaledTransferFunction,
'Range', [Float, Float])
registry.add_input_port(tf_widget.vtkScaledTransferFunction,
'TransferFunction',
tf_widget.TransferFunctionConstant)
registry.add_output_port(tf_widget.vtkScaledTransferFunction,
'TransferFunction',
tf_widget.TransferFunctionConstant)
inspectors.initialize()
import inspectors
from hasher import vtk_hasher
import sys
################################################################################
# filter some deprecation warnings coming from the fact that vtk calls
# range() with float parameters
import warnings
warnings.filterwarnings("ignore",
message="integer argument expected, got float")
################################################################################
if tuple(vtksnl.vtkVersion().GetVTKVersion().split('.')) < ('5', '0', '4'):
def get_description_class(klass):
"""Because sometimes we need to patch VTK classes, the klass that
has the methods is different than the klass we want to
instantiate. get_description_class makes sure that for patched
classes we get the correct one."""
try:
return fix_classes.description[klass]
except KeyError:
return klass
else:
# On VTK 5.0.4, we use the id of the class to hash, because it
# seems that VTK hasn't implemented hash() correctly for their
# classes.
def get_description_class(klass):
"""Because sometimes we need to patch VTK classes, the klass that