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WarpTo

vtk-examples/PythonicAPI/Filtering/WarpTo

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Code

WarpTo.py

#!/usr/bin/env python3

# noinspection PyUnresolvedReferences
import vtkmodules.vtkInteractionStyle
# noinspection PyUnresolvedReferences
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkFiltersCore import vtkTubeFilter
from vtkmodules.vtkFiltersGeneral import vtkWarpTo
from vtkmodules.vtkFiltersSources import vtkLineSource
from vtkmodules.vtkRenderingCore import (
    vtkActor,
    vtkDataSetMapper,
    vtkRenderWindow,
    vtkRenderWindowInteractor,
    vtkRenderer
)


def main():
    colors = vtkNamedColors()
    # Create the RenderWindow, Renderer and both Actors.
    renderer = vtkRenderer(background=colors.GetColor3d('Green'))
    ren_win = vtkRenderWindow(window_name='WarpTo')
    ren_win.AddRenderer(renderer)
    iren = vtkRenderWindowInteractor()
    iren.render_window = ren_win

    # Create a line.
    line_source = vtkLineSource(point1=(0.0, 0.0, 0.0), point2=(0.0, 1.0, 0.0), resolution=20)

    # Create a tube (cylinder) around the line.
    # Default for radius is 0.5.
    tube_filter = vtkTubeFilter(radius=0.01, number_of_sides=50)

    warp_to = vtkWarpTo(position=(10, 1, 0), scale_factor=5, absolute=True)

    mapper = vtkDataSetMapper(scalar_visibility=False)
    line_source >> tube_filter >> warp_to >> mapper

    actor = vtkActor(mapper=mapper)
    actor.property.color = colors.GetColor3d('Gold')

    renderer.AddActor(actor)

    ren_win.Render()

    iren.Initialize()
    iren.Start()


if __name__ == '__main__':
    main()