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from traits.api import HasTraits, Instance, Enum, Dict
from traitsui.api import View, Item
from tvtk.pyface.actor_model import ITVTKActorModel
from tvtk.pyface.actor_editor import ActorEditor
from tvtk.pyface import actors
from tvtk.api import tvtk
######################################################################
class ActorModel(ITVTKActorModel):
# A simple trait to change the actors/widgets.
actor_type = Enum('cone', 'sphere', 'plane_widget', 'box_widget')
#########################
# ITVTKView Model traits.
# This maintains a dictionary mapping objects (by identity) to lists (or
# single items) of TVTK Actors or 3D Widgets that represent them in the
# scene. Adding and removing objects from this dictionary adds and removes
# them from the scene. This is the trait that will be edited by a
# ActorEditor.
actor_map = Dict()
######################
view = View(Item(name='actor_type'),
Item(name='actor_map',
editor=ActorEditor(scene_kwds={'background':(0.2,0.2,0.2)}),
show_label=False,
resizable=True,
height=500,
width=500)
)
def __init__(self, **traits):
super(ActorModel, self).__init__(**traits)
self._actor_type_changed(self.actor_type)
####################################
# Private traits.
def _actor_type_changed(self, value):
if value == 'cone':
a = actors.cone_actor()
self.actor_map = {'cone': a}
elif value == 'sphere':
a = actors.sphere_actor()
self.actor_map = {'sphere': a}
elif value == 'plane_widget':
w = tvtk.PlaneWidget()
self.actor_map = {'plane_widget': w}
elif value == 'box_widget':
w = tvtk.BoxWidget()
self.actor_map = {'box_widget': w}
if __name__ == '__main__':
a = ActorModel()
a.configure_traits()
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