def __init__(self,
interactor,
point,
width=10,
height=10,
opacity=1,
color=(0, 0, 0),
clicked=None,
dragged=None,
released=None,
normalize=False):
self.x, self.y = point
self.color = color
self.clicked = clicked
self.dragged = dragged
self.released = released
self.normalize = normalize
widget = vtkHandleWidget()
widget.AllowHandleResizeOff()
widget.SetRepresentation(vtkPointHandleRepresentation2D())
super(Handle, self).__init__(interactor, widget)
self.repr.SetCursorShape(quad_poly_data(width, height))
properties = self.repr.GetProperty()
properties.SetColor(*color)
properties.SetOpacity(opacity)
self.repr.SetHandleSize(10)
properties = self.repr.GetSelectedProperty()
properties.SetColor(*color)
properties.SetOpacity(.5 * opacity)
self.widget.SetRepresentation(self.repr)
self.place()
self.subscribe("StartInteractionEvent", self.click)
self.subscribe("EndInteractionEvent", self.release)
self.subscribe("InteractionEvent", self.drag)
self.clicking = False
"""
def __init__(self, interactor, point, width=10, height=10, opacity=1, color=(
0, 0, 0), clicked=None, dragged=None, released=None, normalize=False):
self.x, self.y = point
self.color = color
self.clicked = clicked
self.dragged = dragged
self.released = released
self.normalize = normalize
widget = vtkHandleWidget()
widget.AllowHandleResizeOff()
widget.SetRepresentation(vtkPointHandleRepresentation2D())
super(Handle, self).__init__(interactor, widget)
self.repr.SetCursorShape(quad_poly_data(width, height))
properties = self.repr.GetProperty()
properties.SetColor(*color)
properties.SetOpacity(opacity)
self.repr.SetHandleSize(10)
properties = self.repr.GetSelectedProperty()
properties.SetColor(*color)
properties.SetOpacity(.5 * opacity)
self.widget.SetRepresentation(self.repr)
self.place()
self.subscribe("StartInteractionEvent", self.click)
self.subscribe("EndInteractionEvent", self.release)
self.subscribe("InteractionEvent", self.drag)
self.clicking = False
"""
def _handler_new_measurement_button(self, event):
widget_type = 0
if widget_type == 0:
# instantiate widget with correct init vars
name = self._view_frame._measurement_panel.name_cb.GetValue()
if not name or name in self._widgets:
# FIXME: add error message here
pass
else:
w = vtktudoss.vtkEllipseWidget()
w.SetInteractor(self._view_frame._rwi)
w.SetEnabled(1)
widget = M2DWidget(w, name, 'ellipse')
# add it to the internal list
self._widgets.add(widget)
def observer_interaction(o, e):
r = o.GetRepresentation()
s = r.GetLabelText()
widget.measurement_string = s
# c, axis_lengths, radius_vectors
mi = widget.measurement_info
mi.c = [0.0, 0.0, 0.0]
r.GetCenterWorldPosition(mi.c)
mi.c[2] = 0.0
mi.axis_lengths = (r.GetSemiMajorAxisLength() * 2.0,
r.GetSemiMinorAxisLength() * 2.0, 0.0)
mi.radius_vectors = ([0.0, 0.0,
0.0], [0.0, 0.0,
0.0], [0.0, 0.0, 0.0])
# these vectors describe the principal HALF-axes
# of the ellipse, starting out from the centre
# (mi.c)
r.GetSemiMajorAxisVector(mi.radius_vectors[0])
r.GetSemiMinorAxisVector(mi.radius_vectors[1])
self._sync_measurement_grid()
# make sure state is initialised (if one just places
# the widget without interacting, the observer won't
# be invoked and measurement_info won't have the
# necessary attributes; if the network then executes,
# there will be errors)
widget.measurement_string = ''
mi = widget.measurement_info
mi.c = [0.0, 0.0, 0.0]
mi.axis_lengths = (0.0, 0.0, 0.0)
mi.radius_vectors = ([0.0, 0.0, 0.0], [0.0, 0.0,
0.0], [0.0, 0.0, 0.0])
w.AddObserver('EndInteractionEvent', observer_interaction)
# and then make the display thing sync up
self._sync_measurement_grid()
else:
handle = vtk.vtkPointHandleRepresentation2D()
handle.GetProperty().SetColor(1, 0, 0)
rep = vtk.vtkDistanceRepresentation2D()
rep.SetHandleRepresentation(handle)
rep.GetAxis().SetNumberOfMinorTicks(4)
rep.GetAxis().SetTickLength(9)
rep.GetAxis().SetTitlePosition(0.2)
w = vtk.vtkDistanceWidget()
w.SetInteractor(self._view_frame._rwi)
#w.CreateDefaultRepresentation()
w.SetRepresentation(rep)
w.SetEnabled(1)
# instantiate widget with correct init vars
widget = M2DWidget(w, 'name', 'ellipse')
# add it to the internal list
self._widgets.add(w)
self.render()
Created on Tue Jan 26 17:42:59 2016 @author: qinshuo """ import vtk render = vtk.vtkRenderer() win = vtk.vtkRenderWindow() win.AddRenderer(render) interactor = vtk.vtkRenderWindowInteractor() interactor.SetRenderWindow(win) # create a representation handleRep = vtk.vtkPointHandleRepresentation2D() handleRep.GetProperty().SetColor(1, 1, 0) widgetRep = vtk.vtkSeedRepresentation() widgetRep.SetHandleRepresentation(handleRep) # create a seedwidget here seedWidget = vtk.vtkSeedWidget() seedWidget.SetInteractor(interactor) seedWidget.SetRepresentation(widgetRep) seedWidget.On() interactor.Start()
