1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
r"""
Installation requirements:
pip install trame trame-vuetify trame-vtk
"""
from pathlib import Path
import paraview.web.venv
from paraview import simple
from trame.app import get_server
from trame.ui.vuetify import SinglePageLayout
from trame.widgets import paraview, vuetify
# -----------------------------------------------------------------------------
# Trame setup
# -----------------------------------------------------------------------------
server = get_server(client_type="vue2")
state, ctrl = server.state, server.controller
# -----------------------------------------------------------------------------
# Data file
# -----------------------------------------------------------------------------
data_directory = Path(__file__).parent.parent.parent.with_name("data")
head_vti = data_directory / "head.vti"
# -----------------------------------------------------------------------------
# ParaView pipeline
# -----------------------------------------------------------------------------
simple.LoadDistributedPlugin("AcceleratedAlgorithms", remote=False, ns=globals())
reader = simple.XMLImageDataReader(FileName=[str(head_vti)])
# contour = simple.Contour(Input=reader) # Default filter => no plugin but slow
contour = simple.FlyingEdges3D(Input=reader) # Faster processing => make it interactive
# Extract data range => Update store/state
array = reader.GetPointDataInformation().GetArray(0)
data_name = array.GetName()
data_range = array.GetRange()
contour_value = 0.5 * (data_range[0] + data_range[1])
state.data_range = data_range
state.contour_value = contour_value
contour.ContourBy = ["POINTS", data_name]
contour.Isosurfaces = [contour_value]
contour.ComputeNormals = 1
contour.ComputeScalars = 0
# Rendering setup
view = simple.GetRenderView()
view.OrientationAxesVisibility = 0
representation = simple.Show(contour, view)
view = simple.Render()
simple.ResetCamera()
view.CenterOfRotation = view.CameraFocalPoint
# -----------------------------------------------------------------------------
# Callbacks
# -----------------------------------------------------------------------------
@state.change("contour_value")
def update_contour(contour_value, **kwargs):
contour.Isosurfaces = [contour_value]
html_view.update_image()
# -----------------------------------------------------------------------------
# GUI
# -----------------------------------------------------------------------------
modes = (
("auto", "mdi-autorenew"),
("local", "mdi-rotate-3d"),
("remote", "mdi-image"),
)
state.trame__title = "ParaView contour - Remote/Local rendering"
ctrl.on_server_ready.add(ctrl.view_update)
with SinglePageLayout(server) as layout:
layout.title.set_text("Contour Application - Remote rendering")
layout.icon.click = ctrl.view_reset_camera
with layout.toolbar:
vuetify.VSpacer()
with vuetify.VBtnToggle(
v_model=("override", "auto"),
dense=True,
mandatory=True,
):
for entry in modes:
with vuetify.VBtn(value=entry[0]):
vuetify.VIcon(entry[1])
vuetify.VSpacer()
vuetify.VSlider(
v_model="contour_value",
min=("data_range[0]",),
max=("data_range[1]",),
hide_details=True,
dense=True,
style="max-width: 300px",
start="trigger('demoAnimateStart')",
end="trigger('demoAnimateStop')",
)
vuetify.VSwitch(
v_model="$vuetify.theme.dark",
hide_details=True,
)
with vuetify.VBtn(icon=True, click=ctrl.view_reset_camera):
vuetify.VIcon("mdi-crop-free")
vuetify.VProgressLinear(
indeterminate=True,
absolute=True,
bottom=True,
active=("trame__busy",),
)
with layout.content:
with vuetify.VContainer(fluid=True, classes="pa-0 fill-height"):
html_view = paraview.VtkRemoteLocalView(
view,
namespace="demo",
# second arg is to force the view to start in "local" mode
mode=("override === 'auto' ? demoMode : override", "local"),
)
ctrl.view_update = html_view.update
ctrl.view_reset_camera = html_view.reset_camera
# -----------------------------------------------------------------------------
# Main
# -----------------------------------------------------------------------------
if __name__ == "__main__":
server.start()
|
