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jourdainjourdain
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add webinar code sample
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‎docs/tutorials/s00_point_cloud.py

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import dash
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import dash_html_components as html
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import dash_vtk
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import random
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xyz = []
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for i in range(10000):
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xyz.append(random.random()) # x
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xyz.append(random.random()) # y
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xyz.append(random.random() * 0.01) # z
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content = dash_vtk.View(
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children=[
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dash_vtk.GeometryRepresentation(
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property={ 'pointSize': 3 },
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children=[dash_vtk.PolyData(points=xyz, connectivity='points')],
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),
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],
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)
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)
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‎docs/tutorials/s01_mesh.py

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import dash
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import dash_html_components as html
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import dash_vtk
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content = dash_vtk.View([
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dash_vtk.GeometryRepresentation(
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children=[
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dash_vtk.PolyData(
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points=[
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0, 0, 0,
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1, 0, 0,
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0, 1, 0,
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1, 1, 0,
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],
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lines=[3, 1, 3, 2],
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polys=[3, 0, 1, 2],
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),
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],
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),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

‎docs/tutorials/s02_mesh_field.py

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import dash
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import dash_html_components as html
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import dash_vtk
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content = dash_vtk.View([
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dash_vtk.GeometryRepresentation(
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children=[
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dash_vtk.PolyData(
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points=[
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0, 0, 0,
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1, 0, 0,
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0, 1, 0,
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1, 1, 0,
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],
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lines=[3, 1, 3, 2],
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polys=[3, 0, 1, 2],
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children=[
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dash_vtk.PointData([
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dash_vtk.DataArray(
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registration='setScalars',
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name='onPoints',
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values=[0, 0.33, 0.66, 1],
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)
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]),
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dash_vtk.CellData([
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dash_vtk.DataArray(
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# registration='setScalars',
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name='onCells',
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values=[0, 1],
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)
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])
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],
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),
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],
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),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

‎docs/tutorials/s03_volume.py

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import dash
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import random
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import dash_html_components as html
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import dash_vtk
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field = [random.random()*i for i in range(10*10*10)]
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content = dash_vtk.View([
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dash_vtk.VolumeRepresentation([
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dash_vtk.VolumeController(),
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dash_vtk.ImageData(
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dimensions=[10, 10, 10],
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spacing=[1,1,1],
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origin=[-4,-4,-4],
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children=[
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dash_vtk.PointData([
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dash_vtk.DataArray(
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registration='setScalars',
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values=field,
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)
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])
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],
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),
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]),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

‎docs/tutorials/s04_slice.py

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import dash
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import random
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import dash_html_components as html
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import dash_vtk
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field = [random.random()*i for i in range(10*10*10)]
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content = dash_vtk.View([
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dash_vtk.SliceRepresentation(
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property={'colorWindow':500, 'colorLevel':200},
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iSlice=5,
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children=[
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dash_vtk.ImageData(
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dimensions=[10, 10, 10],
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spacing=[1, 1, 1],
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origin=[-4, -4, -4],
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children=[
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dash_vtk.PointData([
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dash_vtk.DataArray(
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registration='setScalars',
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values=field,
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)
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])
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],
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),
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],
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),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

‎docs/tutorials/s05_volume_slice.py

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import dash
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import random
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import dash_html_components as html
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import dash_vtk
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field = [random.random()*i for i in range(10*10*10)]
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content = dash_vtk.View([
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dash_vtk.VolumeRepresentation([
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dash_vtk.VolumeController(),
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dash_vtk.ShareDataSet([
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dash_vtk.ImageData(
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dimensions=[10, 10, 10],
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spacing=[1, 1, 1],
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origin=[-4, -4, -4],
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children=[
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dash_vtk.PointData([
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dash_vtk.DataArray(
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registration='setScalars',
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values=field,
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)
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])
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],
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),
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]),
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]),
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dash_vtk.SliceRepresentation(
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property={'colorWindow':500, 'colorLevel':200},
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iSlice=5,
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children=[dash_vtk.ShareDataSet()],
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),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

‎docs/tutorials/s06_vtk_mesh.py

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import vtk
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import os
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import dash
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import dash_vtk
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from dash_vtk.utils import to_mesh_state
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import dash_html_components as html
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repo_path = os.path.dirname(os.path.dirname(
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os.path.dirname(os.path.abspath(__file__))))
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head_vti = os.path.join(repo_path, 'demos', 'data', 'head.vti')
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# Load dataset from dist
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reader = vtk.vtkXMLImageDataReader()
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reader.SetFileName(head_vti)
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reader.Update()
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# Extract iso-mesh from image
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contour = vtk.vtkContourFilter()
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contour.SetInputConnection(reader.GetOutputPort())
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contour.SetNumberOfContours(1)
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contour.SetValue(0, 1500)
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contour.Update()
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# Get mesh to dash_vtk
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mesh_state = to_mesh_state(contour.GetOutput())
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content = dash_vtk.View([
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dash_vtk.GeometryRepresentation([
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dash_vtk.Mesh(state=mesh_state)
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]),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

‎docs/tutorials/s07_vtk_volume.py

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import vtk
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import os
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import dash
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import dash_vtk
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from dash_vtk.utils import to_volume_state
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import dash_html_components as html
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repo_path = os.path.dirname(os.path.dirname(
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os.path.dirname(os.path.abspath(__file__))))
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head_vti = os.path.join(repo_path, 'demos', 'data', 'head.vti')
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# Load dataset from dist
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reader = vtk.vtkXMLImageDataReader()
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reader.SetFileName(head_vti)
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reader.Update()
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# Get mesh to dash_vtk
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volume_state = to_volume_state(reader.GetOutput())
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content = dash_vtk.View([
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dash_vtk.VolumeRepresentation([
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dash_vtk.VolumeController(),
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dash_vtk.Volume(state=volume_state)
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]),
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])
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# Dash setup
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app = dash.Dash(__name__)
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server = app.server
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app.layout = html.Div(
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style={"width": "100%", "height": "calc(100vh - 15px)"},
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children=[content],
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)
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if __name__ == "__main__":
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app.run_server(debug=True)

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