Skip to content

SimpleCone

vtk-examples/Trame/MiniApps/SimpleCone

Description

This example illustrates basic usage of VTK with trame.

Things you can do:

See: Cone for some ideas.

Question

If you have a question about this example, please use the VTK Discourse Forum

Download and Build SimpleCone

Click here to download SimpleCone. Once the tarball SimpleCone.tar has been downloaded and extracted,

cd SimpleCone

and run the application.

See this trame tutorial for instructions on how to setup trame and run the application.

Code

RemoteRendering.py

from trame import state
from trame.html import vuetify, vtk
from trame.layouts import SinglePage

from vtkmodules.vtkFiltersSources import vtkConeSource
from vtkmodules.vtkRenderingCore import (
    vtkRenderer,
    vtkRenderWindow,
    vtkRenderWindowInteractor,
    vtkPolyDataMapper,
    vtkActor,
)

# VTK factory initialization
from vtkmodules.vtkInteractionStyle import vtkInteractorStyleSwitch  # noqa
import vtkmodules.vtkRenderingOpenGL2  # noqa

# -----------------------------------------------------------------------------
# VTK code
# -----------------------------------------------------------------------------

DEFAULT_RESOLUTION = 6

renderer = vtkRenderer()
renderWindow = vtkRenderWindow()
renderWindow.AddRenderer(renderer)

renderWindowInteractor = vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderWindowInteractor.GetInteractorStyle().SetCurrentStyleToTrackballCamera()

cone_source = vtkConeSource()
mapper = vtkPolyDataMapper()
actor = vtkActor()
mapper.SetInputConnection(cone_source.GetOutputPort())
actor.SetMapper(mapper)
renderer.AddActor(actor)
renderer.ResetCamera()
renderWindow.Render()


@state.change("resolution")
def update_cone(resolution=DEFAULT_RESOLUTION, **kwargs):
    cone_source.SetResolution(resolution)
    html_view.update()


def update_reset_resolution():
    state.resolution = DEFAULT_RESOLUTION


# -----------------------------------------------------------------------------
# GUI
# -----------------------------------------------------------------------------

html_view = vtk.VtkRemoteView(renderWindow, ref="view")

layout = SinglePage("VTK Remote rendering", on_ready=update_cone)
layout.logo.click = html_view.reset_camera
layout.title.set_text("Cone Application")

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")

with layout.content:
    vuetify.VContainer(
        fluid=True,
        classes="pa-0 fill-height",
        children=[html_view],
    )

# Uncomment following line to hide footer
# layout.footer.hide()

# Uncomment following line to change logo to use mdi icon
# layout.logo.children = [vuetify.VIcon('mdi-menu')]

# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------

if __name__ == "__main__":
    layout.start()

Code

LocalRendering.py

from trame import state
from trame.html import vuetify, vtk
from trame.layouts import SinglePage

from vtkmodules.vtkFiltersSources import vtkConeSource
from vtkmodules.vtkRenderingCore import (
    vtkRenderer,
    vtkRenderWindow,
    vtkRenderWindowInteractor,
    vtkPolyDataMapper,
    vtkActor,
)
from vtkmodules.vtkInteractionStyle import vtkInteractorStyleSwitch  # noqa

# -----------------------------------------------------------------------------
# VTK pipeline
# -----------------------------------------------------------------------------

DEFAULT_RESOLUTION = 6

renderer = vtkRenderer()
renderWindow = vtkRenderWindow()
renderWindow.AddRenderer(renderer)

renderWindowInteractor = vtkRenderWindowInteractor()
renderWindowInteractor.SetRenderWindow(renderWindow)
renderWindowInteractor.GetInteractorStyle().SetCurrentStyleToTrackballCamera()

cone_source = vtkConeSource()
mapper = vtkPolyDataMapper()
actor = vtkActor()
mapper.SetInputConnection(cone_source.GetOutputPort())
actor.SetMapper(mapper)
renderer.AddActor(actor)
renderer.ResetCamera()
renderWindow.Render()

# -----------------------------------------------------------------------------
# Callbacks
# -----------------------------------------------------------------------------


@state.change("resolution")
def update_cone(resolution=DEFAULT_RESOLUTION, **kwargs):
    cone_source.SetResolution(resolution)
    html_view.update()


def update_reset_resolution():
    state.resolution = DEFAULT_RESOLUTION


# -----------------------------------------------------------------------------
# GUI
# -----------------------------------------------------------------------------

html_view = vtk.VtkLocalView(renderWindow, ref="view")

layout = SinglePage("VTK Remote View - Local Rendering", on_ready=update_cone)
layout.logo.click = html_view.reset_camera
layout.title.set_text("Cone Application")

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")


with layout.content:
    vuetify.VContainer(
        fluid=True,
        classes="pa-0 fill-height",
        children=[html_view],
    )


# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------

if __name__ == "__main__":
    layout.start()

Code

ClientView.py

from trame import state
from trame.html import vuetify, vtk
from trame.layouts import SinglePage

from vtkmodules.vtkFiltersSources import vtkConeSource

# -----------------------------------------------------------------------------
# VTK pipeline
# -----------------------------------------------------------------------------

DEFAULT_RESOLUTION = 6

cone_generator = vtkConeSource()

# -----------------------------------------------------------------------------
# Callbacks
# -----------------------------------------------------------------------------


@state.change("resolution")
def update_cone(resolution=DEFAULT_RESOLUTION, **kwargs):
    cone_generator.SetResolution(resolution)
    html_polydata.update()


def update_reset_resolution():
    state.resolution = DEFAULT_RESOLUTION


# -----------------------------------------------------------------------------
# GUI
# -----------------------------------------------------------------------------

html_polydata = vtk.VtkPolyData("cone", dataset=cone_generator)

layout = SinglePage("VTK Local rendering", on_ready=update_cone)
layout.logo.click = "$refs.view.resetCamera()"
layout.title.set_text("Cone Application")

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")


with layout.content:
    with vuetify.VContainer(fluid=True, classes="pa-0 fill-height"):
        with vtk.VtkView():
            vtk.VtkGeometryRepresentation(html_polydata)


# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------

if __name__ == "__main__":
    layout.start()