def meshBody(fileName, scale=(1., 1., 1.)):
"""
Return a mesh actor and the appropriate static transform.
"""
reader = FILE_READER[splitext(fileName)[1]](file_name=fileName)
output = reader.output
# if a scale is set we have to apply it
if map(float, scale) != [1., 1., 1.]:
tpdf_transform = tvtk.Transform()
tpdf_transform.identity()
tpdf_transform.scale(scale)
tpdf = tvtk.TransformPolyDataFilter(input=reader.output, transform=tpdf_transform)
tpdf.update()
output = tpdf.output
# compute mesh normal to have a better render and reverse mesh normal
# if the scale flip them
pdn = tvtk.PolyDataNormals(input=output)
pdn.update()
output = pdn.output
pdm = tvtk.PolyDataMapper(input=output)
actor = tvtk.Actor(mapper=pdm)
actor.user_transform = tvtk.Transform()
return actor, sva.PTransformd.Identity()
def __init__(self, X=sva.PTransformd.Identity(), length=0.1, text=''):
"""
Create a 3D axis.
"""
self._X = X
self.axesActor = tvtk.AxesActor(total_length=(length, ) * 3,
axis_labels=False)
self.axesActor.user_transform = tvtk.Transform()
textSource = tvtk.TextSource(text=text, backing=False)
# textPdm = tvtk.PolyDataMapper(input=textSource.output)
textPdm = tvtk.PolyDataMapper()
# https://stackoverflow.com/questions/35089379/how-to-fix-traiterror-the-input-trait-of-a-instance-is-read-only
# configure_input_data(textPdm, textSource.output_port)
# https://github.com/enthought/mayavi/issues/521
textPdm.input_connection = textSource.output_port
#self.textActor = tvtk.Actor(mapper=textPdm)
self.textActor = tvtk.Follower(mapper=textPdm)
# take the maximum component of the bound and use it to scale it
m = max(self.textActor.bounds)
scale = length / m
self.textActor.scale = (scale, ) * 3
# TODO compute the origin well...
self.textActor.origin = (
-(self.textActor.bounds[0] + self.textActor.bounds[1]) / 2.,
-(self.textActor.bounds[2] + self.textActor.bounds[3]) / 2.,
-(self.textActor.bounds[4] + self.textActor.bounds[5]) / 2.,
)
ySize = self.textActor.bounds[3] * 1.2
self.X_text = sva.PTransformd(e.Vector3d(0., -ySize, 0.))
self._transform()
def _pipeline_default(self):
grid = self.vtk_grid
grid.set_execute_method(self.create_grid)
grid.modified()
trans = tvtk.Transform()
trans.rotate_x(90.)
cyl = self.vtk_cylinder
cyl.transform = trans
clip1 = tvtk.ClipVolume(input=grid.structured_points_output,
clip_function=self.vtk_cylinder,
inside_out=1)
clip2 = tvtk.ClipDataSet(input=clip1.output,
clip_function=self.vtk_quadric,
inside_out=1)
topoly = tvtk.GeometryFilter(input=clip2.output)
norms = tvtk.PolyDataNormals(input=topoly.output)
transF = tvtk.TransformFilter(input=norms.output,
transform=self.transform)
self.config_pipeline()
#clip1.update()
grid.modified()
return transF
def _pipeline_default(self):
sqrt2 = numpy.sqrt(2)
x = -sqrt2 * numpy.cos(numpy.pi * 2. / 3)
y = sqrt2 * numpy.sin(numpy.pi * 2. / 3)
p1 = tvtk.PlaneSource(origin=(0,0,0), \
point1=(-sqrt2,0,1), point2=(x,y,1))
p2 = tvtk.PlaneSource(origin=(0,0,0), \
point1=(x,y,1), point2=(x,-y,1))
p3 = tvtk.PlaneSource(origin=(0,0,0), \
point1=(x,-y,1), point2=(-sqrt2,0,1))
for p in (p1, p2, p3):
p.set_resolution(32, 32)
append = tvtk.AppendPolyData()
append.add_input_connection(p1.output_port)
append.add_input_connection(p2.output_port)
append.add_input_connection(p3.output_port)
scale_f = tvtk.TransformFilter(input_connection=append.output_port,
transform=self.scale)
trans = tvtk.Transform()
trans.rotate_x(90.0)
self.imp_cyl.transform = trans
clip = tvtk.ClipPolyData(input_connection=scale_f.output_port,
clip_function=self.imp_cyl,
inside_out=True)
transF2 = tvtk.TransformFilter(input_connection=clip.output_port,
transform=self.transform)
self.config_pipeline()
return transF2
def __set_pure_state__(self, state):
# Pop the transformation matrix for the box widget.
mat = state.pop('matrix')
# Now set their state.
set_state(self, state, first=['widget_mode'], ignore=['*'])
# Set state of rest of the attributes ignoring the widget_mode.
set_state(self, state, ignore=['widget_mode'])
# Set the transformation for Box widget.
tfm = tvtk.Transform()
tfm.set_matrix(pickle.loads(mat))
w = self._widget_dict['Box']
w.set_transform(tfm)
# Some widgets need some cajoling to get their setup right.
w = self.widget
# Set the input.
if len(self.inputs) > 0:
self.configure_input(w, self.inputs[0].outputs[0])
w.update_traits()
mode = self.widget_mode
if mode == 'Plane':
wd = state._widget_dict[mode]
w.origin = wd.origin
w.normal = wd.normal
w.update_placement()
self.update_implicit_function()
# Set the widgets trait so that the widget is rendered if needed.
self.widgets = [w]
def __init__(self, linear, angular, frame, linColor, angColor):
"""
Create the visualization of a 6D vector with a linear and angular part.
Parameter:
linear: 3d linear component (e.Vector3d)
angular: 3d angular component (e.Vector3d)
frame: vector frame (sva.PTransformd)
linColor: linear component color (float, float, float)
angColor: angular component color (float, float, float)
"""
self.linearActor, X_l = self._createVector(linear, frame, linColor)
self.angularActor, X_a = self._createVector(angular, frame, angColor)
# create a Arc around the angular axis
# The arc must turn around the X axis (Arrow default axis)
angNorm = angular.norm()
angNormW = angNorm*0.3
arcSource = tvtk.ArcSource(point1=(angNorm/2., -angNormW, -angNormW),
point2=(angNorm/2., -angNormW, angNormW),
center=(angNorm/2., 0., 0.), negative=True,
resolution=20)
arcPdm = tvtk.PolyDataMapper(input=arcSource.output)
self.arcActor = tvtk.Actor(mapper=arcPdm)
self.arcActor.property.color = angColor
self.arcActor.user_transform = tvtk.Transform()
# apply the angular transform
setActorTransform(self.arcActor, X_a)
def endEffectorBody(X_s, size, color):
"""
Return a end effector reprsented by a plane
and the appropriate static transform.
"""
apd = tvtk.AppendPolyData()
ls = tvtk.LineSource(point1=(0., 0., 0.), point2=tuple(X_s.translation()))
p1 = (sva.PTransformd(e.Vector3d.UnitX() * size) * X_s).translation()
p2 = (sva.PTransformd(e.Vector3d.UnitY() * size) * X_s).translation()
ps = tvtk.PlaneSource(origin=tuple(X_s.translation()),
point1=tuple(p1),
point2=tuple(p2),
center=tuple(X_s.translation()))
apd.add_input(ls.output)
apd.add_input(ps.output)
pdm = tvtk.PolyDataMapper(input=apd.output)
actor = tvtk.Actor(mapper=pdm)
actor.property.color = color
actor.user_transform = tvtk.Transform()
return actor, sva.PTransformd.Identity()
def __init__(self, X=sva.PTransformd.Identity(), length=0.1, text=''):
"""
Create a 3D axis.
"""
self._X = X
self.axesActor = tvtk.AxesActor(total_length=(length, ) * 3,
axis_labels=False)
self.axesActor.user_transform = tvtk.Transform()
textSource = tvtk.TextSource(text=text, backing=False)
textPdm = tvtk.PolyDataMapper(input=textSource.output)
#self.textActor = tvtk.Actor(mapper=textPdm)
self.textActor = tvtk.Follower(mapper=textPdm)
# take the maximum component of the bound and use it to scale it
m = max(self.textActor.bounds)
scale = length / m
self.textActor.scale = (scale, ) * 3
# TODO compute the origin well...
self.textActor.origin = (
-(self.textActor.bounds[0] + self.textActor.bounds[1]) / 2.,
-(self.textActor.bounds[2] + self.textActor.bounds[3]) / 2.,
-(self.textActor.bounds[4] + self.textActor.bounds[5]) / 2.,
)
ySize = self.textActor.bounds[3] * 1.2
self.X_text = sva.PTransformd(e.Vector3d(0., -ySize, 0.))
self._transform()
def _pipeline_default(self):
grid = self.vtk_grid
#grid.set_execute_method(self.create_grid)
grid.modified()
trans = tvtk.Transform()
trans.rotate_x(90.)
cyl = self.vtk_cylinder
cyl.transform = trans
clip1 = tvtk.ClipVolume(input_connection=grid.output_port,
clip_function=self.vtk_cylinder,
inside_out=1)
self.clip2.set(input_connection=clip1.output_port,
clip_function=self.vtk_sphere,
inside_out=1)
topoly = tvtk.GeometryFilter(input_connection=self.clip2.output_port)
norms = tvtk.PolyDataNormals(input_connection=topoly.output_port)
transF = tvtk.TransformFilter(input_connection=norms.output_port,
transform=self.transform)
self.config_pipeline()
grid.modified()
return transF
def linesBody(mb, bodyName, successorJointsName):
"""
Return a mesh represented by lines and the appropriate static transform.
"""
apd = tvtk.AppendPolyData()
sources = []
# create a line from the body base to the next joint
for s in map(mb.jointIndexByName, successorJointsName[bodyName]):
X_s = mb.transform(s)
sources.append(tvtk.LineSource(point1=(0., 0., 0.),
point2=tuple(X_s.translation())))
# add an empty source to avoid a warning if AppendPolyData have 0 source
if len(sources) == 0:
sources.append(tvtk.PointSource(radius=0.))
map(lambda s: apd.add_input(s.output), sources)
apd.update()
pdm = tvtk.PolyDataMapper()
pdm.input_connection = apd.output_port
actor = tvtk.Actor(mapper=pdm)
actor.property.color = (0., 0., 0.)
actor.user_transform = tvtk.Transform()
return actor, sva.PTransformd.Identity()
def _oct_glyph(glyph_source, transform):
from tvtk.api import tvtk
from tvtk.common import configure_input
from traits.api import Array
gs = tvtk.PlatonicSolidSource()
# Workaround for:
# File "mayavi/components/glyph_source.py", line 231, in _glyph_position_changed # noqa: E501
# g.center = 0.0, 0.0, 0.0
# traits.trait_errors.TraitError: Cannot set the undefined 'center' attribute of a 'TransformPolyDataFilter' object. # noqa: E501
class SafeTransformPolyDataFilter(tvtk.TransformPolyDataFilter):
center = Array(shape=(3,), value=np.zeros(3))
gs.solid_type = 'octahedron'
if transform is not None:
# glyph: mayavi.modules.vectors.Vectors
# glyph.glyph: vtkGlyph3D
# glyph.glyph.glyph: mayavi.components.glyph.Glyph
assert transform.shape == (4, 4)
tr = tvtk.Transform()
tr.set_matrix(transform.ravel())
trp = SafeTransformPolyDataFilter()
configure_input(trp, gs)
trp.transform = tr
trp.update()
gs = trp
glyph_source.glyph_source = gs
def make_tube(height, radius, resolution, rx=0, ry=0, rz=0):
cs1 = tvtk.CylinderSource(height=height,
radius=radius[0],
resolution=resolution)
cs2 = tvtk.CylinderSource(height=height + 0.1,
radius=radius[1],
resolution=resolution)
triangle1 = tvtk.TriangleFilter(input_connection=cs1.output_port)
triangle2 = tvtk.TriangleFilter(input_connection=cs2.output_port)
tr = tvtk.Transform()
tr.rotate_x(rx)
tr.rotate_y(ry)
tr.rotate_z(rz)
tf1 = tvtk.TransformFilter(transform=tr,
input_connection=triangle1.output_port)
tf2 = tvtk.TransformFilter(transform=tr,
input_connection=triangle2.output_port)
bf = tvtk.BooleanOperationPolyDataFilter()
bf.operation = "difference"
bf.set_input_connection(0, tf1.output_port)
bf.set_input_connection(1, tf2.output_port)
m = tvtk.PolyDataMapper(input_connection=bf.output_port,
scalar_visibility=False)
a = tvtk.Actor(mapper=m)
return bf, a, tf1, tf2
def _get_x_axis(self):
temp = tvtk.Transform()
o,e = self._orientation
temp.rotate_z(o)
temp.rotate_x(e)
temp.rotate_z(self.rotation)
direct = temp.transform_point(1,0,0)
return direct
def makeActor(source, color):
"""
Create an actor from a source and a color.
"""
pdm = tvtk.PolyDataMapper(input=source.output)
actor = tvtk.Actor(mapper=pdm)
actor.property.color = color
actor.user_transform = tvtk.Transform()
return actor
def _get_direction(self):
temp = tvtk.Transform()
o,e = self._orientation
temp.rotate_z(o)
temp.rotate_x(e)
temp.rotate_z(self.rotation)
direct = temp.transform_point(0,0,1)
#print "get direction", direct, o, e
return direct
def _pipeline_default(self):
cyl = self.cyl
cyl.resolution = 63 #use a prime no to avoid vertex degeneracy
# Important to ensure the cylinder end doesn't coincide with the corner of the cube
cyl.height = self.thickness - 1
cyl.radius = self.diameter / 2.0
cyl.center = (0, (self.thickness / 2) - 1, 0)
print("thickness", self.thickness)
print("diameter", self.diameter)
size = max(self.thickness, self.diameter) * 2
cube = self.cube
cube.set_bounds(0, size, 0, size, 0, size)
tf = tvtk.Transform()
tf.post_multiply()
tf.rotate_x(-45.0)
tf.rotate_wxyz(35.26438968275, 0, 0, 1)
tfilt = tvtk.TransformFilter(input_connection=cube.output_port)
tfilt.transform = tf
tri1 = tvtk.TriangleFilter(input_connection=cyl.output_port)
tri2 = tvtk.TriangleFilter(input_connection=tfilt.output_port)
tri1.update()
tri2.update()
intersect = tvtk.BooleanOperationPolyDataFilter()
intersect.operation = "intersection"
intersect.add_input_connection(0, tri1.output_port)
intersect.add_input_connection(1, tri2.output_port)
intersect.tolerance = 1e-8
tf2 = tvtk.Transform()
tf2.rotate_x(90.0)
tf2.rotate_y(60.0)
orient = tvtk.TransformFilter(input_connection=intersect.output_port,
transform=tf2)
norm = tvtk.PolyDataNormals(input_connection=orient.output_port)
transF = tvtk.TransformFilter(input_connection=norm.output_port,
transform=self.transform)
self.config_pipeline()
return transF
def __get_pure_state__(self):
d = super(ImplicitWidgets, self).__get_pure_state__()
for attr in ('_first', '_busy', '_observer_id', 'widget',
'implicit_function'):
d.pop(attr, None)
# The box widget requires a transformation matrix to be pickled.
tfm = tvtk.Transform()
w = self._widget_dict['Box']
w.get_transform(tfm)
d['matrix'] = pickle.dumps(tfm.matrix)
return d
def _createVector(self, vector, frame, color): source = tvtk.ArrowSource() pdm = tvtk.PolyDataMapper(input=source.output) actor = tvtk.Actor(mapper=pdm) actor.user_transform = tvtk.Transform() actor.property.color = color norm = vector.norm() actor.scale = (norm,)*3 quat = e.Quaterniond() # arrow are define on X axis quat.setFromTwoVectors(vector, e.Vector3d.UnitX()) X = sva.PTransformd(quat)*frame setActorTransform(actor, X) return actor, X
def setup_pipeline(self):
"""Override this method so that it *creates* the tvtk
pipeline.
This method is invoked when the object is initialized via
`__init__`. Note that at the time this method is called, the
tvtk data pipeline will *not* yet be setup. So upstream data
will not be available. The idea is that you simply create the
basic objects and setup those parts of the pipeline not
dependent on upstream sources and filters. You should also
set the `actors` attribute up at this point.
"""
self._trfm.transform = tvtk.Transform()
# Setup the glyphs.
self.glyph_source = self.glyph_dict['glyph_source2d']
def _pipeline_default(self):
grid = self.vtk_grid
#grid.set_execute_method(self.create_grid)
grid.modified()
trans = tvtk.Transform()
trans.rotate_x(90.)
cyl = self.vtk_cylinder
cyl.transform = trans
clip1 = tvtk.ClipVolume(input_connection=grid.output_port,
clip_function=self.vtk_cylinder,
inside_out=1)
self.clip2.set(input_connection=clip1.output_port,
clip_function=self.vtk_sphere1,
inside_out=1)
self.clip3.set(input_connection=self.clip2.output_port,
clip_function=self.vtk_sphere3,
inside_out=1)
clip4 = tvtk.ClipDataSet(input_connection=self.clip3.output_port,
clip_function=self.vtk_sphere2,
inside_out=1)
clip5 = tvtk.ClipDataSet(input_connection=self.clip3.output_port,
clip_function=self.vtk_sphere2,
inside_out=0)
topoly = tvtk.GeometryFilter(input_connection=clip4.output_port)
topoly2 = tvtk.GeometryFilter(input_connection=clip5.output_port)
append = tvtk.AppendPolyData()
append.add_input_connection(topoly.output_port)
append.add_input_connection(topoly2.output_port)
norms = tvtk.PolyDataNormals(input_connection=append.output_port)
transF = tvtk.TransformFilter(input_connection=norms.output_port,
transform=self.transform)
self.on_geometry_changed()
self.config_pipeline()
grid.modified()
return transF
def _createVector(self, vector, frame, color):
source = tvtk.ArrowSource()
# pdm = tvtk.PolyDataMapper(input=source.output)
pdm = tvtk.PolyDataMapper()
# https://github.com/enthought/mayavi/issues/521
pdm.input_connection = source.output_port
# configure_input_data(pdm, source)
prop = tvtk.Property(color=color)
actor = tvtk.Actor(mapper=pdm, property=prop)
actor.user_transform = tvtk.Transform()
# commented due to api change, new lines are above Actor creation
# actor.property.color = color
norm = vector.norm()
actor.scale = (norm, ) * 3
quat = e.Quaterniond()
# arrow are define on X axis
quat.setFromTwoVectors(vector, e.Vector3d.UnitX())
X = sva.PTransformd(quat) * frame
transform.setActorTransform(actor, X)
return actor, X
def __init__(self, linear, angular, frame, linColor, angColor):
"""
Create the visualization of a 6D vector with a linear and angular part.
Parameter:
linear: 3d linear component (e.Vector3d)
angular: 3d angular component (e.Vector3d)
frame: vector frame (sva.PTransformd)
linColor: linear component color (float, float, float)
angColor: angular component color (float, float, float)
"""
self.linearActor, X_l = self._createVector(linear, frame, linColor)
self.angularActor, X_a = self._createVector(angular, frame, angColor)
# create a Arc around the angular axis
# The arc must turn around the X axis (Arrow default axis)
angNorm = angular.norm()
angNormW = angNorm * 0.3
arcSource = tvtk.ArcSource(point1=(angNorm / 2., -angNormW, -angNormW),
point2=(angNorm / 2., -angNormW, angNormW),
center=(angNorm / 2., 0., 0.),
negative=True,
resolution=20)
# arcPdm = tvtk.PolyDataMapper(input=arcSource.output)
arcPdm = tvtk.PolyDataMapper()
# https://stackoverflow.com/questions/35089379/how-to-fix-traiterror-the-input-trait-of-a-instance-is-read-only
# configure_input_data(textPdm, textSource)# https://github.com/enthought/mayavi/issues/521
arcPdm.input_connection = arcSource.output_port
prop = tvtk.Property(color=angColor)
# https://github.com/enthought/mayavi/issues/521
# arcPdm.input_connection = arcSource.output_port
self.arcActor = tvtk.Actor(mapper=arcPdm, property=prop)
# commented due to api change, new lines are above Actor creation
# self.arcActor.property.color = angColor
# https://github.com/enthought/mayavi/blob/5c2694b72b329b8d5c469bc459a211378e2c8581/tvtk/pyface/actors.py#L112
self.arcActor.user_transform = tvtk.Transform()
# apply the angular transform
transform.setActorTransform(self.arcActor, X_a)
def endEffectorBody(X_s, size, color):
"""
Return a end effector reprsented by a plane
and the appropriate static transform.
"""
apd = tvtk.AppendPolyData()
ls = tvtk.LineSource(point1=(0., 0., 0.),
point2=tuple(X_s.translation()))
p1 = (sva.PTransformd(e.Vector3d.UnitX()*size)*X_s).translation()
p2 = (sva.PTransformd(e.Vector3d.UnitY()*size)*X_s).translation()
ps = tvtk.PlaneSource(origin=tuple(X_s.translation()),
point1=tuple(p1),
point2=tuple(p2),
center=tuple(X_s.translation()))
# apd.add_input(ls.output)
# apd.add_input(ps.output)
# https://github.com/enthought/mayavi/blob/ac5c8e316335078c25461a0bce4a724ae86f1836/tvtk/tests/test_tvtk.py#L586
apd.add_input_data(ls.output)
apd.add_input_data(ps.output)
# pdm = tvtk.PolyDataMapper(input=apd.output)
# arcPdm = tvtk.PolyDataMapper(input=arcSource.output)
pdm = tvtk.PolyDataMapper()
# https://stackoverflow.com/questions/35089379/how-to-fix-traiterror-the-input-trait-of-a-instance-is-read-only
# configure_input_data(textPdm, textSource)# https://github.com/enthought/mayavi/issues/521
pdm.input_connection = apd.output_port
prop = tvtk.Property(color=color)
# https://github.com/enthought/mayavi/issues/521
# arcPdm.input_connection = arcSource.output_port
actor = tvtk.Actor(mapper=pdm, property=prop)
actor.property.color = color
actor.user_transform = tvtk.Transform()
return actor, sva.PTransformd.Identity()
def transform(self, translate=None, scale=None, rotate=None):
"""Applies an affine transformation to the current object.
Keyword arguments are self explanatory. They can be a tuple or list
representing the three-dimensional vector or a single number to use
for each of the three components.
"""
transform = self.actor.user_transform or tvtk.Transform()
if translate is not None:
transform.translate(self._to_tuple(translate))
if scale is not None:
transform.scale(self._to_tuple(scale))
if rotate is not None:
rotate = self._to_tuple(rotate)
transform.rotate_x(rotate[0])
transform.rotate_y(rotate[1])
transform.rotate_z(rotate[2])
self.actor.user_transform = transform
def transform_pts(centre, direction, points):
#take a point from the global referance frame and transform it into the
#local referance frame of an object. accepts the x,y,z of the centre and
#direction of the object's frame.
temp = tvtk.Transform()
temp.identity()
temp.translate(centre)
x, y, z = normaliseVector(direction)
Theta = numpy.arccos(z)
theta = 180 * Theta / numpy.pi
phi = 180 * numpy.arctan2(x, y) / numpy.pi
orientation = -phi, -theta
temp.rotate_z(-phi)
temp.rotate_x(-theta)
inv_t = temp.linear_inverse
result = transformPoints(inv_t, points)
return result
def __init__(self):
self.el = 0.0
self.az = 0.0
# Create an arrow.
arrow = tvtk.ArrowSource()
# Transform it suitably so it is oriented correctly.
t = tvtk.Transform()
tf = tvtk.TransformFilter()
tf.transform = t
t.rotate_y(90.0)
t.translate((-2, 0, 0))
configure_input_data(tf, arrow.output)
mapper = tvtk.PolyDataMapper()
configure_input(mapper, tf)
self.actor = actor = tvtk.Follower()
actor.mapper = mapper
prop = actor.property
prop.color = 0, 1, 1
prop.ambient = 0.5
prop.diffuse = 0.5
def anim():
x = 0.2
y = 0.3
z = 0.4
cb1 = sch.Box(x, y, z)
cb2 = sch.Box(x, y, z)
pair = sch.CD_Pair(cb1, cb2)
b1s = tvtk.CubeSource(x_length=x, y_length=y, z_length=z)
b2s = tvtk.CubeSource(x_length=x, y_length=y, z_length=z)
b1m = tvtk.PolyDataMapper(input=b1s.output)
b2m = tvtk.PolyDataMapper(input=b2s.output)
b1a = tvtk.Actor(mapper=b1m)
b2a = tvtk.Actor(mapper=b2m)
line = tvtk.LineSource()
lineM = tvtk.PolyDataMapper(input=line.output)
lineA = tvtk.Actor(mapper=lineM)
b1a.user_transform = tvtk.Transform()
b2a.user_transform = tvtk.Transform()
b1T = sva.PTransformd.Identity()
b2T = sva.PTransformd(Vector3d.UnitZ()*2.)
setTransform(b1a, b1T)
setTransform(b2a, b2T)
viewer = mlab.gcf()
viewer.scene.add_actors([b1a, b2a, lineA])
rx = ry = rz = 0.
t = 0
while True:
b1T = sva.PTransformd(sva.RotZ(rz)*sva.RotY(ry)*sva.RotX(rx))
b2T = sva.PTransformd(Vector3d(0., 0., 2. + np.sin(t)))
setTransform(b1a, b1T)
setTransform(b2a, b2T)
cb1.transform(b1T)
cb2.transform(b2T)
p1 = Vector3d()
p2 = Vector3d()
pair.distance(p1, p2)
line.point1 = list(p1)
line.point2 = list(p2)
rx += 0.01
ry += 0.005
rz += 0.002
t += 0.05
viewer.scene.render()
yield
def callback(widget, event):
"""This callback sets the transformation of the cone using that
setup by the the box."""
t = tvtk.Transform()
bw.get_transform(t)
bw.prop3d.user_transform = t
def setup_pipeline(self):
self.widget = ImplicitWidgets()
self._transform = tvtk.Transform()
self.filter = tvtk.ClipDataSet()
self.widget.on_trait_change(self._handle_widget, 'widget')
super(DataSetClipper, self).setup_pipeline()
def setup_pipeline(self):
self._transform = tvtk.Transform()
self.widget = tvtk.BoxWidget(place_factor=1.1)
self.filter = tvtk.TransformFilter()
super(TransformData, self).setup_pipeline()
