def build_view_child(dimensions, spacing, origin, field, enabled, i, j, k,
window, level):
slice_prop = {"colorWindow": window, "colorLevel": level}
child = [
dash_vtk.ShareDataSet(
dash_vtk.ImageData(
dimensions=dimensions,
spacing=spacing,
origin=origin,
children=dash_vtk.PointData(
dash_vtk.DataArray(registration="setScalars",
values=field)),
), ),
]
if "Volume" in enabled:
child.append(
dash_vtk.VolumeRepresentation(
[dash_vtk.VolumeController(),
dash_vtk.ShareDataSet()], ))
if "i" in enabled:
child.append(
dash_vtk.SliceRepresentation(
iSlice=int(round(i)),
property=slice_prop,
children=dash_vtk.ShareDataSet(),
))
if "j" in enabled:
child.append(
dash_vtk.SliceRepresentation(
jSlice=int(round(j)),
property=slice_prop,
children=dash_vtk.ShareDataSet(),
))
if "k" in enabled:
child.append(
dash_vtk.SliceRepresentation(
kSlice=int(round(k)),
property=slice_prop,
children=dash_vtk.ShareDataSet(),
))
return child
# Use VTK to get some data
data_source = vtkRTAnalyticSource()
data_source.Update() # <= Execute source to produce an output
dataset = data_source.GetOutput()
# Use helper to get a volume structure that can be passed as-is to a Volume
volume_state = to_volume_state(dataset) # No need to select field
content = dash_vtk.View([
dash_vtk.VolumeRepresentation([
# GUI to control Volume Rendering
# + Setup good default at startup
dash_vtk.VolumeController(),
# Actual volume
dash_vtk.ShareDataSet([
dash_vtk.Volume(state=volume_state),
]),
]),
dash_vtk.SliceRepresentation(iSlice=10,
children=[
dash_vtk.ShareDataSet(),
]),
dash_vtk.SliceRepresentation(jSlice=10,
children=[
dash_vtk.ShareDataSet(),
]),
dash_vtk.SliceRepresentation(kSlice=10,
children=[
dash_vtk.ShareDataSet(),
]),
])
field = [random.random() * i for i in range(10 * 10 * 10)]
content = dash_vtk.View(
[
dash_vtk.VolumeRepresentation(
[
dash_vtk.VolumeController(),
dash_vtk.ShareDataSet(
[
dash_vtk.ImageData(
dimensions=[10, 10, 10],
spacing=[1, 1, 1],
origin=[-4, -4, -4],
children=[
dash_vtk.PointData(
[
dash_vtk.DataArray(
registration="setScalars", values=field,
)
]
)
],
),
]
),
]
),
dash_vtk.SliceRepresentation(
property={"colorWindow": 500, "colorLevel": 200},
iSlice=5,
children=[dash_vtk.ShareDataSet()],
),
children=dbc.Row([
dbc.Col(dbc.FormGroup([dbc.Label(label), component]))
for label, component in sliders.items()
]),
)
slice_property = {"colorWindow": 4095, "colorLevel": 1000}
slice_view = dash_vtk.View(
id="slice-view",
cameraPosition=[1, 0, 0],
cameraViewUp=[0, 0, -1],
cameraParallelProjection=False,
background=[0.9, 0.9, 1],
children=[
dash_vtk.ShareDataSet(dash_vtk.Volume(state=volume_state)),
dash_vtk.SliceRepresentation(
id="slice-repr-i",
iSlice=128,
property=slice_property,
children=dash_vtk.ShareDataSet(),
),
dash_vtk.SliceRepresentation(
id="slice-repr-j",
jSlice=128,
property=slice_property,
children=dash_vtk.ShareDataSet(),
),
dash_vtk.SliceRepresentation(
id="slice-repr-k",
kSlice=47,