class Property(HasStrictTraits):
color = Tuple(Range(0.0, 1.0), Range(0.0, 1.0), Range(0.0, 1.0))
opacity = Range(0.0, 1.0, 1.0)
representation = Trait('surface',
TraitPrefixMap({'surface':2,
'wireframe': 1,
'points': 0}))
class complex_value(HasTraits):
num1 = Trait(1, TraitRange(1, 5), TraitRange(-5, -1))
num2 = Trait(
1,
TraitRange(1, 5),
TraitPrefixList("one", "two", "three", "four", "five"),
)
num3 = Trait(
1,
TraitRange(1, 5),
TraitPrefixMap({"one": 1, "two": 2, "three": 3, "four": 4, "five": 5}),
)
num4 = Trait(1, Trait(1, Tuple, slow), 10)
num5 = Trait(1, 10, Trait(1, Tuple, slow))
def test_handler_warning(self):
handlers = {
"TraitDict": TraitDict,
"TraitList": TraitList,
"TraitTuple": TraitTuple,
"TraitPrefixList": lambda: TraitPrefixList("one", "two"),
"TraitPrefixMap": lambda: TraitPrefixMap({}),
}
for name, handler_factory in handlers.items():
with self.subTest(handler=name):
with warnings.catch_warnings(record=True):
warnings.simplefilter("error", DeprecationWarning)
with self.assertRaises(DeprecationWarning) as cm:
handler_factory()
self.assertIn(name, str(cm.exception))
class PLOT3DReader(Source):
"""A PLOT3D file reader. This reader does not support a
timeseries of files.
"""
# The version of this class. Used for persistence.
__version__ = 0
# XYZ file name
xyz_file_name = Str('', desc='the XYZ file')
# The (optional) Q file.
q_file_name = Str('', desc='the Q file')
# The active scalar name.
scalars_name = Trait('density',
TraitPrefixMap({
'density': 100,
'pressure': 110,
'temperature': 120,
'enthalpy': 130,
'internal energy': 140,
'kinetic energy': 144,
'velocity magnitude': 153,
'stagnation energy': 163,
'entropy': 170,
'swirl': 184
}),
desc='scalar data attribute to show')
# The active vector name.
vectors_name = Trait('momentum',
TraitPrefixMap({
'velocity': 200,
'vorticity': 201,
'momentum': 202,
'pressure gradient': 210
}),
desc='vector data attribute to show')
# The VTK data file reader.
reader = Instance(tvtk.MultiBlockPLOT3DReader,
args=(),
allow_none=False,
record=True)
# Information about what this object can produce.
output_info = PipelineInfo(datasets=['structured_grid'])
########################################
# View related code.
update_reader = Button('Update Reader')
# Our view.
view = View(Group(
Item('xyz_file_name', editor=FileEditor()),
Item('q_file_name', editor=FileEditor()),
Item(name='scalars_name', enabled_when='len(object.q_file_name) > 0'),
Item(name='vectors_name', enabled_when='len(object.q_file_name)>0'),
Item(name='update_reader'),
label='Reader',
),
Group(Item(name='reader', style='custom', resizable=True),
show_labels=False,
label='PLOT3DReader'),
resizable=True)
########################################
# Private traits.
# The current file paths. This is not meant to be touched by the
# user.
xyz_file_path = Instance(FilePath,
args=(),
desc='the current XYZ file path')
q_file_path = Instance(FilePath, args=(), desc='the current Q file path')
######################################################################
# `object` interface
######################################################################
def __get_pure_state__(self):
d = super(PLOT3DReader, self).__get_pure_state__()
# These traits are dynamically created.
for name in ('scalars_name', 'vectors_name', 'xyz_file_name',
'q_file_name'):
d.pop(name, None)
return d
def __set_pure_state__(self, state):
xyz_fn = state.xyz_file_path.abs_pth
q_fn = state.q_file_path.abs_pth
if not isfile(xyz_fn):
msg = 'Could not find file at %s\n' % xyz_fn
msg += 'Please move the file there and try again.'
raise IOError, msg
# Setup the reader state.
set_state(self, state, first=['reader'], ignore=['*'])
# Initialize the files.
self.initialize(xyz_fn, q_fn, configure=False)
# Now set the remaining state without touching the children.
set_state(self,
state,
ignore=['children', 'xyz_file_path', 'q_file_path'])
# Setup the children.
handle_children_state(self.children, state.children)
# Setup the children's state.
set_state(self, state, first=['children'], ignore=['*'])
######################################################################
# `FileDataSource` interface
######################################################################
def initialize(self, xyz_file_name, q_file_name='', configure=True):
"""Given an xyz filename and a Q filename which may or may not
be part of a time series, this initializes the list of files.
This method need not be called to initialize the data.
If configure is True, it pops up a UI to configure the
PLOT3DReader.
"""
if len(q_file_name) == 0:
base = splitext(xyz_file_name)[0]
qf = base + '.q'
if exists(qf):
q_file_name = qf
if configure:
# First set properties of the reader. This is useful when
# the data format has atypical defaults. Automatic
# detection can be disastrous sometimes due to VTK related
# problems.
self.reader.edit_traits(kind='livemodal')
self.xyz_file_name = xyz_file_name
if len(q_file_name) > 0:
self.q_file_name = q_file_name
def update(self):
if len(self.xyz_file_path.get()) == 0:
return
self.reader.update()
self.render()
def has_output_port(self):
""" Return True as the reader has output port."""
return True
def get_output_object(self):
""" Return the reader output port."""
return self.reader.output_port
######################################################################
# Non-public interface
######################################################################
def _xyz_file_name_changed(self, value):
if len(value) == 0:
return
else:
self.reader.xyz_file_name = value
self.xyz_file_path.set(value)
self._update_reader_output()
def _q_file_name_changed(self, value):
if len(value) == 0:
return
else:
self.reader.q_file_name = value
self.q_file_path.set(value)
self._update_reader_output()
def _update_reader_output(self):
r = self.reader
r.update()
if r.error_code != 0:
try:
self.reader.i_blanking = True
except AttributeError:
pass
else:
r.update()
# Try reading file.
if r.error_code != 0:
# No output so the file might be an ASCII file.
try:
# Turn off IBlanking.
r.set(i_blanking=False, binary_file=False)
except AttributeError:
pass
else:
r.update()
# Try again this time as ascii and with blanking.
if r.error_code != 0:
# No output so the file might be an ASCII file.
try:
# Turn on IBlanking.
r.i_blanking = True
except AttributeError:
pass
else:
r.update()
# If there still is an error, ask the user.
if r.error_code != 0:
r.edit_traits(kind='livemodal')
r.update()
# If there still is an error, ask the user to retry.
if r.error_code != 0:
msg = 'Unable to read file properly. '\
'Please check the settings of the reader '\
'on the UI and press the "Update Reader" button '\
'when done and try again!'
error(msg)
return
# Now setup the outputs by resetting self.outputs. Changing
# the outputs automatically fires a pipeline_changed event.
try:
n = r.get_output().number_of_blocks
except AttributeError: # for VTK >= 4.5
n = r.number_of_outputs
outputs = []
for i in range(n):
outputs.append(r.get_output().get_block(i))
self.outputs = outputs
# Fire data_changed just in case the outputs are not
# really changed. This can happen if the dataset is of
# the same type as before.
self.data_changed = True
# Change our name on the tree view
self.name = self._get_name()
def _scalars_name_changed(self, value):
self.reader.scalar_function_number = self.scalars_name_
self.reader.modified()
self.update()
self.data_changed = True
def _vectors_name_changed(self, value):
self.reader.vector_function_number = self.vectors_name_
self.reader.modified()
self.update()
self.data_changed = True
def _update_reader_fired(self):
self.reader.modified()
self._update_reader_output()
self.pipeline_changed = True
def _get_name(self):
""" Gets the name to display on the tree view.
"""
xyz_fname = basename(self.xyz_file_path.get())
q_fname = basename(self.q_file_path.get())
if len(self.q_file_name) > 0:
ret = "PLOT3D:%s, %s" % (xyz_fname, q_fname)
else:
ret = "PLOT3D:%s" % (xyz_fname)
if '[Hidden]' in self.name:
ret += ' [Hidden]'
return ret
# Copyright (c) 2007, Enthought, Inc.
# License: BSD Style.
# traitprefixmap.py --- Example of using the TraitPrefixMap handler
# --[Imports]-------------------------------------------------------------------
from traits.api import Trait, TraitPrefixMap
# --[Code]----------------------------------------------------------------------
boolean_map = Trait(
"true", TraitPrefixMap({"true": 1, "yes": 1, "false": 0, "no": 0})
)
Range,
Trait,
)
from apptools.scripting.recorder import Recorder
from apptools.scripting.recordable import recordable
from apptools.scripting.package_globals import set_recorder
try:
# Require Traits >= 6.1
from traits.api import PrefixMap
except ImportError:
from traits.api import TraitPrefixMap
representation_trait = Trait(
"surface", TraitPrefixMap({
"surface": 2,
"wireframe": 1,
"points": 0
}))
else:
representation_trait = PrefixMap(
{
"surface": 2,
"wireframe": 1,
"points": 0
}, default_value="surface")
######################################################################
# Test classes.
class Property(HasStrictTraits):
color = Tuple(Range(0.0, 1.0), Range(0.0, 1.0), Range(0.0, 1.0))
class PrefixMapTrait(HasTraits):
value = Trait("one", TraitPrefixMap({"one": 1, "two": 2, "three": 3}))
# Copyright (c) 2007, Enthought, Inc.
# License: BSD Style.
# traitprefixmap.py --- Example of using the TraitPrefixMap handler
#--[Imports]--------------------------------------------------------------------
from traits.api import Trait, TraitPrefixMap
#--[Code]-----------------------------------------------------------------------
boolean_map = Trait('true', TraitPrefixMap( {
'true': 1,
'yes': 1,
'false': 0,
'no': 0 } ) )
font_trait = KivaFont(default_font_name)
# Bounds trait
bounds_trait = CList([0.0, 0.0]) # (w,h)
coordinate_trait = CList([0.0, 0.0]) # (x,y)
#bounds_trait = Trait((0.0, 0.0, 20.0, 20.0), valid_bounds, editor=bounds_editor)
# Component minimum size trait
# PZW: Make these just floats, or maybe remove them altogether.
ComponentMinSize = Range(0.0, 99999.0)
ComponentMaxSize = ComponentMinSize(99999.0)
# Pointer shape trait:
Pointer = Trait('arrow', TraitPrefixList(pointer_shapes))
# Cursor style trait:
cursor_style_trait = Trait('default', TraitPrefixMap(cursor_styles))
spacing_trait = Range(0, 63, value=4)
padding_trait = Range(0, 63, value=4)
margin_trait = Range(0, 63)
border_size_trait = Range(0, 8, editor=border_size_editor)
# Time interval trait:
TimeInterval = Trait(None, None, Range(0.0, 3600.0))
# Stretch traits:
Stretch = Range(0.0, 1.0, value=1.0)
NoStretch = Stretch(0.0)
# Copyright (c) 2007, Enthought, Inc.
# License: BSD Style.
# traitprefixmap.py --- Example of using the TraitPrefixMap handler
#--[Imports]-------------------------------------------------------------------
from traits.api import Trait, TraitPrefixMap
#--[Code]----------------------------------------------------------------------
boolean_map = Trait('true',
TraitPrefixMap({
'true': 1,
'yes': 1,
'false': 0,
'no': 0
}))
