TextSource

#!/usr/bin/env python

# noinspection PyUnresolvedReferences
import vtkmodules.vtkInteractionStyle
# noinspection PyUnresolvedReferences
import vtkmodules.vtkRenderingOpenGL2
from vtkmodules.vtkCommonColor import vtkNamedColors
from vtkmodules.vtkFiltersSources import vtkTextSource
from vtkmodules.vtkRenderingCore import (
    vtkActor,
    vtkPolyDataMapper,
    vtkRenderWindow,
    vtkRenderWindowInteractor,
    vtkRenderer
)


def main():
    colors = vtkNamedColors()

    textSource = vtkTextSource()
    textSource.SetText("Hello")
    textSource.SetForegroundColor(colors.GetColor3d('DarkSlateGray'))
    textSource.SetBackgroundColor(colors.GetColor3d('NavajoWhite'))
    # Turn off if you don't want the background drawn with the text.
    textSource.BackingOn()
    textSource.Update()

    # Create a mapper and actor
    mapper = vtkPolyDataMapper()
    mapper.SetInputConnection(textSource.GetOutputPort())

    actor = vtkActor()
    actor.SetMapper(mapper)

    # Create a renderer, render window, and interactor
    renderer = vtkRenderer()
    renderWindow = vtkRenderWindow()
    renderWindow.AddRenderer(renderer)
    renderWindow.SetWindowName('TextSource')

    renderWindowInteractor = vtkRenderWindowInteractor()
    renderWindowInteractor.SetRenderWindow(renderWindow)

    # Add the actor to the scene
    renderer.AddActor(actor)
    renderer.SetBackground(colors.GetColor3d('Bisque'))

    # Render and interact
    renderWindow.Render()
    renderWindowInteractor.Start()


if __name__ == '__main__':
    main()