def test_pickle(self):
"""Test if pickler works correctly with FilePaths.
"""
t = Test()
t.f.set('t.vtk')
cwd = os.getcwd()
# Create a dummy file in the parent dir.
s = StringIO.StringIO()
# Spoof its location.
s.name = abspath(join(cwd, os.pardir, 't.mv2'))
# Dump into it
state_pickler.dump(t, s)
# Rewind the stream
s.seek(0)
# "Move" the file elsewhere
s.name = join(cwd, 'foo', 'test', 't.mv2')
state = state_pickler.load_state(s)
self.assertEqual(state.f.abs_pth,
join(cwd, 'foo', 'test', 'tests', 't.vtk'))
# Create a dummy file in a subdir.
s = StringIO.StringIO()
# Spoof its location.
s.name = abspath(join(cwd, 'data', 't.mv2'))
# Dump into it.
state_pickler.dump(t, s)
# Rewind the stream
s.seek(0)
# "Move" the file elsewhere
s.name = join(cwd, 'foo', 'test', 't.mv2')
state = state_pickler.load_state(s)
self.assertEqual(state.f.abs_pth, join(cwd, 'foo', 't.vtk'))
def load_visualization(self, file_or_fname):
"""Given a file/file name this loads the visualization."""
# Save the state of VTK's global warning display.
o = vtk.vtkObject
w = o.GetGlobalWarningDisplay()
o.SetGlobalWarningDisplay(0) # Turn it off.
try:
# Get the state from the file.
state = state_pickler.load_state(file_or_fname)
state_pickler.update_state(state)
# Add the new scenes.
for scene_state in state.scenes:
self.new_scene()
scene = self.scenes[-1]
# Disable rendering initially.
if scene.scene is not None:
scene.scene.disable_render = True
# Update the state.
state_pickler.update_state(scene_state)
scene.__set_pure_state__(scene_state)
# Setting the state will automatically reset the
# disable_render.
scene.render()
finally:
# Reset the warning state.
o.SetGlobalWarningDisplay(w)
def load_visualization(self, file_or_fname):
"""Given a file/file name this loads the visualization."""
# Save the state of VTK's global warning display.
o = vtk.vtkObject
w = o.GetGlobalWarningDisplay()
o.SetGlobalWarningDisplay(0) # Turn it off.
try:
# Get the state from the file.
state = state_pickler.load_state(file_or_fname)
state_pickler.update_state(state)
# Add the new scenes.
for scene_state in state.scenes:
self.new_scene()
scene = self.scenes[-1]
# Disable rendering initially.
if scene.scene is not None:
scene.scene.disable_render = True
# Update the state.
state_pickler.update_state(scene_state)
scene.__set_pure_state__(scene_state)
# Setting the state will automatically reset the
# disable_render.
scene.render()
finally:
# Reset the warning state.
o.SetGlobalWarningDisplay(w)
def test_pickle(self):
"""Test if pickler works correctly with FilePaths.
"""
t = Test()
t.f.set('t.vtk')
cwd = os.getcwd()
# Create a dummy file in the parent dir.
s = StringIO.StringIO()
# Spoof its location.
s.name = abspath(join(cwd, os.pardir, 't.mv2'))
# Dump into it
state_pickler.dump(t, s)
# Rewind the stream
s.seek(0)
# "Move" the file elsewhere
s.name = join(cwd, 'foo', 'test', 't.mv2')
state = state_pickler.load_state(s)
self.assertEqual(state.f.abs_pth,
join(cwd, 'foo', 'test', 'tests', 't.vtk'))
# Create a dummy file in a subdir.
s = StringIO.StringIO()
# Spoof its location.
s.name = abspath(join(cwd, 'data', 't.mv2'))
# Dump into it.
state_pickler.dump(t, s)
# Rewind the stream
s.seek(0)
# "Move" the file elsewhere
s.name = join(cwd, 'foo', 'test', 't.mv2')
state = state_pickler.load_state(s)
self.assertEqual(state.f.abs_pth,
join(cwd, 'foo', 't.vtk'))
import subprocess
# Enthought library imports.
from enthought.traits.api import Instance, Range, Bool, Array, \
Str, Property, Enum, Button
from enthought.traits.ui.api import FileEditor, auto_close_message
from enthought.persistence import state_pickler
from enthought.tvtk.api import tvtk
# Local imports.
from enthought.mayavi.core.base import Base
from enthought.mayavi.core.common import error
from enthought.mayavi.core import lut
lut_image_dir = os.path.dirname(lut.__file__)
pylab_luts = state_pickler.load_state(
os.path.join(lut_image_dir, 'pylab_luts.pkl'))
#################################################################
# Utility functions.
#################################################################
def set_lut(vtk_lut, lut_lst):
"""Setup the tvtk.LookupTable (`vtk_lut`) using the passed list of
lut values."""
n_col = len(lut_lst)
vtk_lut.number_of_colors = n_col
vtk_lut.build()
for i in range(0, n_col):
lt = lut_lst[i]
vtk_lut.set_table_value(i, lt[0], lt[1], lt[2], lt[3])
# Enthought library imports.
from enthought.traits.api import Instance, Range, Bool, Array, \
Str, Property, Enum, Button
from enthought.traits.ui.api import FileEditor, auto_close_message
from enthought.persistence import state_pickler
from enthought.tvtk.api import tvtk
# Local imports.
from enthought.mayavi.core.base import Base
from enthought.mayavi.core.common import error
from enthought.mayavi.core import lut
lut_image_dir = os.path.dirname(lut.__file__)
pylab_luts = state_pickler.load_state(os.path.join(lut_image_dir,
'pylab_luts.pkl'))
#################################################################
# Utility functions.
#################################################################
def set_lut(vtk_lut, lut_lst):
"""Setup the tvtk.LookupTable (`vtk_lut`) using the passed list of
lut values."""
n_col = len(lut_lst)
vtk_lut.number_of_colors = n_col
vtk_lut.build()
for i in range(0, n_col):
lt = lut_lst[i]
vtk_lut.set_table_value(i, lt[0], lt[1], lt[2], lt[3])
return vtk_lut
