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import vtk
from trame.app import TrameApp
from trame.ui.vuetify3 import SinglePageLayout
from trame.widgets import vuetify3, vtk as vtk_widgets
class PushCamera(TrameApp):
def __init__(self, server=None):
super().__init__(server)
self._setup_vtk()
self._build_ui()
def _setup_vtk(self):
render_window = vtk.vtkRenderWindow()
render_window.SetOffScreenRendering(True)
renderer = vtk.vtkRenderer()
render_window.AddRenderer(renderer)
cone = vtk.vtkConeSource()
mapper = vtk.vtkPolyDataMapper()
actor = vtk.vtkActor()
mapper.SetInputConnection(cone.GetOutputPort())
actor.SetMapper(mapper)
renderer.AddActor(actor)
renderer.ResetCamera()
self.render_window = render_window
self.camera = renderer.GetActiveCamera()
def _build_ui(self):
with SinglePageLayout(self.server) as self.ui:
self.ui.title.set_text("Client-side Camera Control")
with self.ui.content:
with vuetify3.VContainer(
fluid=True,
classes="pa-0 fill-height",
):
vtk_widgets.VtkLocalView(self.render_window, ctx_name="view")
with self.ui.toolbar:
vuetify3.VSpacer()
vuetify3.VBtn("Set Top View", click=self.set_top_view)
def set_top_view(self):
self.camera.SetPosition(0, 5, 0)
self.camera.SetFocalPoint(0, 0, 0)
self.camera.SetViewUp(0, 0, -1)
self.ctx.view.push_camera()
# self.ctx.view.update()
if __name__ == "__main__":
app = PushCamera()
app.server.start()
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