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Merge pull request #7 from Kitware/fix-incremental-state
fix(LocalView): Properly handle add/remove actor
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from trame.app import get_server | ||
from trame.widgets import vuetify, vtk as vtk_widgets | ||
from trame.ui.vuetify import SinglePageLayout | ||
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from vtkmodules.vtkFiltersModeling import vtkOutlineFilter | ||
from vtkmodules.vtkCommonDataModel import vtkPolyData | ||
from vtkmodules.vtkFiltersSources import vtkConeSource, vtkSphereSource | ||
from vtkmodules.vtkRenderingCore import ( | ||
vtkRenderer, | ||
vtkRenderWindow, | ||
vtkRenderWindowInteractor, | ||
vtkPolyDataMapper, | ||
vtkActor, | ||
) | ||
from vtkmodules.vtkInteractionStyle import vtkInteractorStyleSwitch # noqa | ||
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# ----------------------------------------------------------------------------- | ||
# Trame initialization | ||
# ----------------------------------------------------------------------------- | ||
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server = get_server() | ||
state, ctrl = server.state, server.controller | ||
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state.trame__title = "VTK Remote View - Local Rendering" | ||
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# ----------------------------------------------------------------------------- | ||
# VTK pipeline | ||
# ----------------------------------------------------------------------------- | ||
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DEFAULT_RESOLUTION = 6 | ||
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renderer = vtkRenderer() | ||
renderWindow = vtkRenderWindow() | ||
renderWindow.AddRenderer(renderer) | ||
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renderWindowInteractor = vtkRenderWindowInteractor() | ||
renderWindowInteractor.SetRenderWindow(renderWindow) | ||
renderWindowInteractor.GetInteractorStyle().SetCurrentStyleToTrackballCamera() | ||
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def create_pipeline(source): | ||
mapper = vtkPolyDataMapper() | ||
actor = vtkActor() | ||
if hasattr(source, "GetOutputPort"): | ||
mapper.SetInputConnection(source.GetOutputPort()) | ||
else: | ||
mapper.SetInputData(source) | ||
actor.SetMapper(mapper) | ||
return actor | ||
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cone_source = vtkConeSource() | ||
cone_actor = create_pipeline(cone_source) | ||
renderer.AddActor(cone_actor) | ||
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sphere_source = vtkSphereSource() | ||
sphere_actor = create_pipeline(sphere_source) | ||
renderer.AddActor(sphere_actor) | ||
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# Dummy actor | ||
filter = vtkOutlineFilter() | ||
filter.SetInputConnection(cone_source.GetOutputPort()) | ||
renderer.AddActor(create_pipeline(filter)) | ||
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renderer.ResetCamera() | ||
renderWindow.Render() | ||
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# ----------------------------------------------------------------------------- | ||
# Callbacks | ||
# ----------------------------------------------------------------------------- | ||
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@state.change("resolution") | ||
def update_cone(resolution=DEFAULT_RESOLUTION, **kwargs): | ||
cone_source.SetResolution(resolution) | ||
ctrl.view_update() | ||
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def update_reset_resolution(): | ||
state.resolution = DEFAULT_RESOLUTION | ||
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@state.change("show_cone") | ||
def update_cone(show_cone, **kwargs): | ||
if show_cone: | ||
renderer.AddActor(cone_actor) | ||
else: | ||
renderer.RemoveActor(cone_actor) | ||
ctrl.view_update() | ||
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@state.change("show_sphere") | ||
def update_cone(show_sphere, **kwargs): | ||
if show_sphere: | ||
renderer.AddActor(sphere_actor) | ||
else: | ||
renderer.RemoveActor(sphere_actor) | ||
ctrl.view_update() | ||
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# ----------------------------------------------------------------------------- | ||
# GUI | ||
# ----------------------------------------------------------------------------- | ||
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with SinglePageLayout(server) as layout: | ||
layout.icon.click = ctrl.view_reset_camera | ||
layout.title.set_text("Cone Application") | ||
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with layout.toolbar: | ||
vuetify.VSpacer() | ||
vuetify.VSlider( | ||
v_model=("resolution", DEFAULT_RESOLUTION), | ||
min=3, | ||
max=60, | ||
step=1, | ||
hide_details=True, | ||
dense=True, | ||
style="max-width: 300px", | ||
) | ||
vuetify.VDivider(vertical=True, classes="mx-2") | ||
with vuetify.VBtn(icon=True, click=update_reset_resolution): | ||
vuetify.VIcon("mdi-undo-variant") | ||
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vuetify.VCheckbox( | ||
v_model=("show_cone", True), label="Cone", dense=True, hide_details=True | ||
) | ||
vuetify.VCheckbox( | ||
v_model=("show_sphere", True), label="Sphere", dense=True, hide_details=True | ||
) | ||
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with layout.content: | ||
with vuetify.VContainer( | ||
fluid=True, | ||
classes="pa-0 fill-height", | ||
): | ||
view = vtk_widgets.VtkLocalView(renderWindow, ref="view") | ||
ctrl.view_update = view.update | ||
ctrl.view_reset_camera = view.reset_camera | ||
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# ----------------------------------------------------------------------------- | ||
# Main | ||
# ----------------------------------------------------------------------------- | ||
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if __name__ == "__main__": | ||
server.start() |
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