def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e=e
# Read the multi-block plot3d file.
r = PLOT3DReader()
r.reader.set(has_byte_count=True, multi_grid=True,
byte_order='little_endian')
r.initialize(get_example_data('tiny.xyz'),
get_example_data('tiny.q'),
configure=False)
e.add_source(r)
# Add the filter.
f = SelectOutput()
e.add_filter(f)
# Create an outline for the data.
o = Outline()
e.add_module(o)
o.render()
self.o=o
self.r=r
self.e=e
self.scene = e.current_scene
return
def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e = e
# Read the multi-block plot3d file.
r = PLOT3DReader()
r.reader.trait_set(has_byte_count=True,
multi_grid=True,
byte_order='little_endian')
r.initialize(get_example_data('tiny.xyz'),
get_example_data('tiny.q'),
configure=False)
e.add_source(r)
# Add the filter.
f = SelectOutput()
e.add_filter(f)
# Create an outline for the data.
o = Outline()
e.add_module(o)
o.render()
self.o = o
self.r = r
self.e = e
self.scene = e.current_scene
return
def test_multipe_readers(self):
"Test if reader conflict is resolved"
# Testing two files with same extensions but have to be read
# by different readers
reader = registry.get_file_reader(get_example_data('tiny.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PLOT3DReader')
reader = registry.get_file_reader(get_example_data('thio3xx.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PolyDataReader')
def test_multipe_readers(self):
"Test if reader conflict is resolved"
# Testing two files with same extensions but have to be read
# by different readers
reader = registry.get_file_reader(get_example_data('tiny.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PLOT3DReader')
reader = registry.get_file_reader(get_example_data('thio3xx.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PolyDataReader')
def test_no_valid_reader(self):
"""Test that if there is no reader which can read the file with
assurity, the registry returns the last one of the readers
which dont have a can_read_test and claim to read the file with
the given extension"""
open_dummy = SourceMetadata(
id="DummyFile",
class_name="mayavi.tests.test_registry.DummyReader",
menu_name="&PLOT3D file",
tooltip="Open a PLOT3D data data",
desc="Open a PLOT3D data data",
help="Open a PLOT3D data data",
extensions=['xyz'],
wildcard='PLOT3D files (*.xyz)|*.xyz',
can_read_test='mayavi.tests.test_registry:DummyReader.check_read',
output_info=PipelineInfo(datasets=['structured_grid'],
attribute_types=['any'],
attributes=['any']))
registry.sources.append(open_dummy)
# Remove the poly data reader.
for index, src in enumerate(registry.sources[:]):
if src.id == 'PolyDataFile':
poly = src
registry.sources.remove(src)
break
reader = registry.get_file_reader(get_example_data('tiny.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PLOT3DReader')
# Add back the poly data reader.
registry.sources.insert(index, poly)
registry.sources.remove(open_dummy)
def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e=e
# Read a VTK (old style) data file.
r = VTKXMLFileReader()
r.initialize(get_example_data('pyramid_ug.vtu'))
e.add_source(r)
# Create the filters.
# CellDerivatives
cd = tvtk.CellDerivatives()
ud = UserDefined(filter=cd)
e.add_filter(ud)
ctp = CellToPointData()
ctp.filter.pass_cell_data = False
e.add_filter(ctp)
evn = ExtractVectorNorm()
e.add_filter(evn)
evc = ExtractVectorComponents(component='y-component')
o = Optional(filter=evc)
e.add_filter(o)
e.add_module(ScalarCutPlane())
self.scene = e.current_scene
s = self.scene
return
def test_volume_works_with_probe(self):
src = mlab.pipeline.open(get_example_data('pyramid_ug.vtu'))
idp = mlab.pipeline.image_data_probe(src)
with patch('pyface.api.error') as m:
vol = mlab.pipeline.volume(idp)
self.assertEqual(m.call_count, 0)
self.assertEqual(np.allclose(vol.volume.center, (3.0, 3.0, 1.5)), True)
def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e=e
# Read a VTK (old style) data file.
r = VTKXMLFileReader()
r.initialize(get_example_data('pyramid_ug.vtu'))
e.add_source(r)
# Create the filters.
# CellDerivatives
cd = tvtk.CellDerivatives()
ud = UserDefined(filter=cd)
e.add_filter(ud)
ctp = CellToPointData()
ctp.filter.pass_cell_data = False
e.add_filter(ctp)
evn = ExtractVectorNorm()
e.add_filter(evn)
evc = ExtractVectorComponents(component='y-component')
o = Optional(filter=evc)
e.add_filter(o)
e.add_module(ScalarCutPlane())
self.scene = e.current_scene
s = self.scene
return
def test_no_valid_reader(self):
"""Test that if there is no reader which can read the file with
assurity, the registry returns the last one of the readers
which dont have a can_read_test and claim to read the file with
the given extension"""
open_dummy = SourceMetadata(
id = "DummyFile",
class_name = "mayavi.tests.test_registry.DummyReader",
menu_name = "&PLOT3D file",
tooltip = "Open a PLOT3D data data",
desc = "Open a PLOT3D data data",
help = "Open a PLOT3D data data",
extensions = ['xyz'],
wildcard = 'PLOT3D files (*.xyz)|*.xyz',
can_read_test = 'mayavi.tests.test_registry:DummyReader.check_read',
output_info = PipelineInfo(datasets=['structured_grid'],
attribute_types=['any'],
attributes=['any'])
)
registry.sources.append(open_dummy)
# Remove the poly data reader.
for index, src in enumerate(registry.sources[:]):
if src.id == 'PolyDataFile':
poly = src
registry.sources.remove(src)
break
reader = registry.get_file_reader(get_example_data('tiny.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PLOT3DReader')
# Add back the poly data reader.
registry.sources.insert(index, poly)
registry.sources.remove(open_dummy)
def test_ipw_works_with_image_data_probe(self):
src = mlab.pipeline.open(get_example_data('pyramid_ug.vtu'))
idp = mlab.pipeline.image_data_probe(src)
with patch('pyface.api.error') as m:
ipw = mlab.pipeline.image_plane_widget(idp)
self.assertEqual(m.call_count, 0)
self.assertEqual(numpy.allclose(ipw.ipw.center, (0.0, 3.0, 1.5)),True)
def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e = e
r = VTKXMLFileReader()
r.initialize(get_example_data('pyramid_ug.vtu'))
e.add_source(r)
r.point_scalars_name = 'temperature'
o = Outline()
e.add_module(o)
c = Contour()
e.add_filter(c)
n = PolyDataNormals()
e.add_filter(n)
aa = SetActiveAttribute()
e.add_filter(aa)
aa.point_scalars_name = 'pressure'
s = Surface()
e.add_module(s)
self.scene = e.current_scene
return
def test_test_backend(self):
"""Test if setting the backend to 'test' works."""
mlab.options.backend = 'test'
mlab.test_contour3d()
mlab.clf()
mlab.pipeline.open(get_example_data('cube.vti'))
mlab.clf()
def test_ipw_works_with_image_data_probe(self):
src = mlab.pipeline.open(get_example_data('pyramid_ug.vtu'))
idp = mlab.pipeline.image_data_probe(src)
with patch('pyface.api.error') as m:
ipw = mlab.pipeline.image_plane_widget(idp)
self.assertEqual(m.call_count, 0)
self.assertEqual(numpy.allclose(ipw.ipw.center, (0.0, 3.0, 1.5)),True)
def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e=e
r = VTKXMLFileReader()
r.initialize(get_example_data('pyramid_ug.vtu'))
e.add_source(r)
r.point_scalars_name = 'temperature'
o = Outline()
e.add_module(o)
c = Contour()
e.add_filter(c)
n = PolyDataNormals()
e.add_filter(n)
aa = SetActiveAttribute()
e.add_filter(aa)
aa.point_scalars_name = 'pressure'
s = Surface()
e.add_module(s)
self.scene = e.current_scene
return
def test_test_backend(self):
"""Test if setting the backend to 'test' works."""
mlab.options.backend = 'test'
mlab.test_contour3d()
mlab.clf()
mlab.pipeline.open(get_example_data('cube.vti'))
mlab.clf()
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Exodus data file.
r = UnstructuredGridReader()
r.initialize(get_example_data('disk_out_ref.ex2'))
self.e.add_source(r)
def test_volume_works_with_probe(self):
src = mlab.pipeline.open(get_example_data('pyramid_ug.vtu'))
idp = mlab.pipeline.image_data_probe(src)
with patch('pyface.api.error') as m:
vol = mlab.pipeline.volume(idp)
self.assertEqual(m.call_count, 0)
self.assertEqual(
np.allclose(vol.volume.center, (3.0, 3.0, 1.5)),True
)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a OBJ data file.
r = PolyDataReader()
r.initialize(get_example_data('shuttle.obj'))
self.e.add_source(r)
self.bounds = (-7.65, 7.04, -4.68, 4.68, -1.35, 4.16)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a BYU data file.
r = PolyDataReader()
r.initialize(get_example_data('cow.g'))
self.e.add_source(r)
self.bounds = (-4.445, 5.998, -3.608, 2.760, -1.690, 1.690)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a SLC data file.
r = PolyDataReader()
r.initialize(get_example_data('nut.slc'))
self.e.add_source(r)
self.bounds = (0.0, 67.0, 0.0, 40.0, 0.0, 58.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Facet data file.
r = PolyDataReader()
r.initialize(get_example_data('clown.facet'))
self.e.add_source(r)
self.bounds = (-0.5, 0.69, -0.49, 0.49, -1.09, 0.5)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a PDB data file.
r = PolyDataReader()
r.initialize(get_example_data('caffeine.pdb'))
self.e.add_source(r)
self.bounds = (3.10, 10.78, -2.39, 4.03, -10.60, -6.31)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Gambit data file.
r = UnstructuredGridReader()
r.initialize(get_example_data('prism.neu'))
self.e.add_source(r)
self.bounds = (-1.0, 1.0, -1.0, 1.0, 0.0, 1.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Exodus data file.
r = UnstructuredGridReader()
r.initialize(get_example_data('disk_out_ref.ex2'))
self.e.add_source(r)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a AVSUCD data file.
r = UnstructuredGridReader()
r.initialize(get_example_data('cellsnd.ascii.inp'))
self.e.add_source(r)
self.bounds = (-2.0, 2.0, -2.0, 2.0, 0.0, 0.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a STL data file.
r = PolyDataReader()
r.initialize(get_example_data('humanoid_tri.stla'))
self.e.add_source(r)
self.bounds = (0.60, 3.47, -3.96, 3.95, 3.05, 17.39)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a DEM Image file.
r = ImageReader()
r.initialize(get_example_data('example.dem'))
self.e.add_source(r)
self.bounds = (557945.0, 567725.0, 5107991.5, 5121971.5, 682.0, 682.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Meta Image file.
r = ImageReader()
r.initialize(get_example_data('foot.mha'))
self.e.add_source(r)
self.bounds = (0.0, 255.0, 0.0, 255.0, 0.0, 0.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a PDB data file.
r = PolyDataReader()
r.initialize(get_example_data('caffeine.pdb'))
self.e.add_source(r)
self.bounds = (3.10, 10.78, -2.39, 4.03, -10.60, -6.31)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a STL data file.
r = PolyDataReader()
r.initialize(get_example_data('humanoid_tri.stla'))
self.e.add_source(r)
self.bounds = (0.60, 3.47, -3.96, 3.95, 3.05, 17.39)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Facet data file.
r = PolyDataReader()
r.initialize(get_example_data('clown.facet'))
self.e.add_source(r)
self.bounds = (-0.5, 0.69, -0.49, 0.49, -1.09, 0.5)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a SLC data file.
r = PolyDataReader()
r.initialize(get_example_data('nut.slc'))
self.e.add_source(r)
self.bounds = (0.0, 67.0, 0.0, 40.0, 0.0, 58.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a BYU data file.
r = PolyDataReader()
r.initialize(get_example_data('cow.g'))
self.e.add_source(r)
self.bounds = (-4.445, 5.998, -3.608, 2.760, -1.690, 1.690)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Meta Image file.
r = ImageReader()
r.initialize(get_example_data('foot.mha'))
self.e.add_source(r)
self.bounds =(0.0, 255.0, 0.0, 255.0, 0.0, 0.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a DEM Image file.
r = ImageReader()
r.initialize(get_example_data('example.dem'))
self.e.add_source(r)
self.bounds =(557945.0, 567725.0, 5107991.5, 5121971.5, 682.0, 682.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a AVSUCD data file.
r = UnstructuredGridReader()
r.initialize(get_example_data('cellsnd.ascii.inp'))
self.e.add_source(r)
self.bounds =(-2.0, 2.0, -2.0, 2.0, 0.0, 0.0)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a OBJ data file.
r = PolyDataReader()
r.initialize(get_example_data('shuttle.obj'))
self.e.add_source(r)
self.bounds = (-7.65, 7.04, -4.68, 4.68, -1.35, 4.16)
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Gambit data file.
r = UnstructuredGridReader()
r.initialize(get_example_data('prism.neu'))
self.e.add_source(r)
self.bounds = (-1.0, 1.0, -1.0, 1.0, 0.0, 1.0)
def test_slice_unstructured_grid(self):
# Given
src = mlab.pipeline.open(get_example_data('uGridEx.vtk'))
eg = mlab.pipeline.extract_unstructured_grid(src)
eg.filter.trait_set(cell_clipping=True, cell_maximum=2)
# When
sug = mlab.pipeline.slice_unstructured_grid(eg)
# Then
assert_allclose(sug.actor.actor.bounds, (1.0, 2.0, 0.0, 1.0, 0.0, 1.0))
def setup_reader(self):
""""Setup the reader in here. This is called after the engine
has been created and started. The engine is available as
self.e. This method is called by setUp().
"""
# Read a Particle data file.
r = PolyDataReader()
r.initialize(get_example_data('Particles.raw'))
self.e.add_source(r)
r.reader.set(data_byte_order='big_endian', data_type='float', file_type='binary')
self.bounds = (817.33, 826.09, 545.02, 571.02, 1443.48, 1511.18)
def test_multiple_valid_readers(self):
"""Test if the fixture works fine if there are multiple readers
capable of reading the file properly"""
# Inserting a dummy reader into the registry also capable of
# reading files with extension 'xyz'
open_dummy = SourceMetadata(
id = "DummyFile",
class_name = "mayavi.tests.test_registry.DummyReader",
menu_name = "&PLOT3D file",
tooltip = "Open a PLOT3D data data",
desc = "Open a PLOT3D data data",
help = "Open a PLOT3D data data",
extensions = ['xyz'],
wildcard = 'PLOT3D files (*.xyz)|*.xyz',
can_read_test = 'mayavi.tests.test_registry:DummyReader.check_read',
output_info = PipelineInfo(datasets=['structured_grid'],
attribute_types=['any'],
attributes=['any'])
)
registry.sources.append(open_dummy)
reader = registry.get_file_reader(get_example_data('tiny.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'PLOT3DReader')
# Removing existing readers for .xyz extensions to check if the Dummy
# reader now reads it.
remove = []
for index, src in enumerate(registry.sources[:]):
if 'xyz' in src.extensions and src.id != 'DummyFile':
remove.append((index, src))
registry.sources.remove(src)
reader = registry.get_file_reader(get_example_data('tiny.xyz'))
callable = reader.get_callable()
self.assertEqual(callable.__name__, 'DummyReader')
for index, src in remove:
registry.sources.insert(index, src)
registry.sources.remove(open_dummy)
def make_mb_dataset():
fpath = get_example_data('pyramid_ug.vtu')
r = tvtk.XMLUnstructuredGridReader(file_name=fpath)
r.update()
ug0 = r.output
ug1 = tvtk.UnstructuredGrid()
ug1.deep_copy(ug0)
pts = ug1.points.to_array()
pts[:, 0] += 10.0
ug1.points = pts
mb = tvtk.MultiBlockDataSet()
mb.set_block(0, ug0)
mb.set_block(1, ug1)
return mb
def test_slice_unstructured_grid(self):
v = tvtk.Version()
if v.vtk_major_version < 6 and v.vtk_minor_version < 10:
raise unittest.SkipTest('Broken on Travis with VTK-5.8?')
# Given
src = mlab.pipeline.open(get_example_data('uGridEx.vtk'))
eg = mlab.pipeline.extract_unstructured_grid(src)
eg.filter.set(cell_clipping=True, cell_maximum=2)
# When
sug = mlab.pipeline.slice_unstructured_grid(eg)
# Then
assert_allclose(sug.actor.actor.bounds, (1.0, 2.0, 0.0, 1.0, 0.0, 1.0))
def make_mb_dataset():
fpath = get_example_data('pyramid_ug.vtu')
r = tvtk.XMLUnstructuredGridReader(file_name=fpath)
r.update()
ug0 = r.output
ug1 = tvtk.UnstructuredGrid()
ug1.deep_copy(ug0)
pts = ug1.points.to_array()
pts[:, 0] += 10.0
ug1.points = pts
mb = tvtk.MultiBlockDataSet()
mb.set_block(0, ug0)
mb.set_block(1, ug1)
return mb
def test_test_backend_clf(self):
"""Test if setting the backend to 'test' works."""
mlab.options.backend = 'test'
mlab.test_contour3d()
e = mlab.get_engine()
self.assertEqual(len(e.scenes), 1)
self.assertEqual(len(e.scenes[0].children), 1)
mlab.clf()
self.assertEqual(len(e.scenes), 1)
self.assertEqual(len(e.scenes[0].children), 0)
mlab.pipeline.open(get_example_data('cube.vti'))
mlab.clf()
self.assertEqual(len(e.scenes), 1)
self.assertEqual(len(e.scenes[0].children), 0)
def test_slice_unstructured_grid(self):
v = tvtk.Version()
if v.vtk_major_version < 6 and v.vtk_minor_version < 10:
raise unittest.SkipTest('Broken on Travis with VTK-5.8?')
# Given
src = mlab.pipeline.open(get_example_data('uGridEx.vtk'))
eg = mlab.pipeline.extract_unstructured_grid(src)
eg.filter.trait_set(cell_clipping=True, cell_maximum=2)
# When
sug = mlab.pipeline.slice_unstructured_grid(eg)
# Then
assert_allclose(sug.actor.actor.bounds, (1.0, 2.0, 0.0, 1.0, 0.0, 1.0))
def setUp(self):
e = NullEngine()
# Uncomment to see visualization for debugging etc.
# e = Engine()
e.start()
e.new_scene()
self.e = e
# Read a VTK XML data file.
r = VTKXMLFileReader()
r.initialize(get_example_data("cube.vti"))
e.add_source(r)
# Create an outline for the data.
o = Outline()
e.add_module(o)
# Create one ContourGridPlane normal to the 'x' axis.
cgp1 = ContourGridPlane()
e.add_module(cgp1)
# Set the position to the middle of the data.
cgp1.grid_plane.position = 1
# Another with filled contours normal to 'y' axis.
cgp2 = ContourGridPlane()
cgp2.contour.filled_contours = True
# Set the axis and position to the middle of the data.
cgp2.grid_plane.axis = "y"
cgp2.grid_plane.position = 1
e.add_module(cgp2)
# An interactive scalar cut plane.
cp = ScalarCutPlane()
e.add_module(cp)
ip = cp.implicit_plane
ip.normal = 0, 0, 1
ip.origin = 0.5, 0.5, 1.0
# Since this is running offscreen this seems necessary.
ip.widget.origin = 0.5, 0.5, 1.0
ip.widget.enabled = False
self.scene = e.current_scene
self.cgp2 = cgp2
self.cp = cp
return
def setUp(self):
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e=e
# Read a VTK XML data file.
r = VTKXMLFileReader()
r.initialize(get_example_data('cube.vti'))
e.add_source(r)
# Create an outline for the data.
o = Outline()
e.add_module(o)
# Create one ContourGridPlane normal to the 'x' axis.
cgp1 = ContourGridPlane()
e.add_module(cgp1)
# Set the position to the middle of the data.
cgp1.grid_plane.position = 1
# Another with filled contours normal to 'y' axis.
cgp2 = ContourGridPlane()
cgp2.contour.filled_contours = True
# Set the axis and position to the middle of the data.
cgp2.grid_plane.axis = 'y'
cgp2.grid_plane.position = 1
e.add_module(cgp2)
# An interactive scalar cut plane.
cp = ScalarCutPlane()
e.add_module(cp)
ip = cp.implicit_plane
ip.normal = 0,0,1
ip.origin = 0.5, 0.5, 1.0
# Since this is running offscreen this seems necessary.
ip.widget.origin = 0.5, 0.5, 1.0
ip.widget.enabled = False
self.scene = e.current_scene
self.cgp2=cgp2
self.cp=cp
return
def setUp(self):
self.root = tempfile.mkdtemp()
abc1 = os.path.join(self.root, "abc_1.vti")
abc2 = os.path.join(self.root, "abc_2.vti")
def1 = os.path.join(self.root, "def_1.vti")
def2 = os.path.join(self.root, "def_2.vti")
xyz1 = os.path.join(self.root, "xyz_1.vti")
cube = get_example_data("cube.vti")
self.abc1, self.abc2 = abc1, abc2
self.def1, self.def2 = def1, def2
self.xyz1 = xyz1
self.cube = cube
for i in (abc1, abc2, def1, def2, xyz1):
shutil.copy(cube, i)
e = NullEngine()
# Uncomment to see visualization for debugging etc.
# e = Engine()
e.start()
e.new_scene()
self.engine = e
def setUp(self):
self.root = tempfile.mkdtemp()
abc1 = os.path.join(self.root, 'abc_1.vti')
abc2 = os.path.join(self.root, 'abc_2.vti')
def1 = os.path.join(self.root, 'def_1.vti')
def2 = os.path.join(self.root, 'def_2.vti')
xyz1 = os.path.join(self.root, 'xyz_1.vti')
cube = get_example_data('cube.vti')
self.abc1, self.abc2 = abc1, abc2
self.def1, self.def2 = def1, def2
self.xyz1 = xyz1
self.cube = cube
for i in (abc1, abc2, def1, def2, xyz1):
shutil.copy(cube, i)
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.engine = e
def setUp(self):
"""Initial setting up of test fixture, automatically called by TestCase before any other test method is invoked"""
e = NullEngine()
# Uncomment to see visualization for debugging etc.
#e = Engine()
e.start()
e.new_scene()
self.e=e
# Read a VTK (old style) data file.
r = VTKXMLFileReader()
r.initialize(get_example_data('pyramid_ug.vtu'))
e.add_source(r)
# Create the filters.
idp = ImageDataProbe()
idp.rescale_scalars = True
e.add_filter(idp)
cgp = ContourGridPlane(enable_contours=False)
e.add_module(cgp)
cgp.grid_plane.axis = 'z'
cgp.grid_plane.position = 1
self.scene = e.current_scene
return
def test_unique_reader(self):
"Check if a file with a unique reader in Mayavi2 can be read"
e = self.e
reader = e.open(get_example_data('prism.neu'))
self.assertNotEqual(reader, None)
def test_field_file(self):
self.src.initialize(get_example_data('fieldfile.vtk'))
self.check(18, 3)
def test_unstructured_grid_file(self):
self.src.initialize(get_example_data('uGridEx.vtk'))
self.check(27, 12)
def test_field_file(self):
self.src.initialize(get_example_data('fieldfile.vtk'))
self.check(18, 3)
def test_unstructured_grid_file(self):
self.src.initialize(get_example_data('uGridEx.vtk'))
self.check(27, 12)
def test_structured_grid_file(self):
self.src.initialize(get_example_data('SampleStructGrid.vtk'))
self.check(24000, 21489)