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Line

vtk-examples/Python/GeometricObjects/Line


Description

The line is a primary one-dimensional cell. It is defined by two points. The direction along the line is from the first point to the second point.

Other languages

See (Cxx), (Java), (CSharp)

Question

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Code

Line.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import vtk


def main():
    # Create two points, P0 and P1
    p0 = [1.0, 0.0, 0.0]
    p1 = [0.0, 1.0, 0.0]

    lineSource = vtk.vtkLineSource()
    lineSource.SetPoint1(p0)
    lineSource.SetPoint2(p1)

    # Visualize
    colors = vtk.vtkNamedColors()

    mapper = vtk.vtkPolyDataMapper()
    mapper.SetInputConnection(lineSource.GetOutputPort())
    actor = vtk.vtkActor()
    actor.SetMapper(mapper)
    actor.GetProperty().SetLineWidth(4)
    actor.GetProperty().SetColor(colors.GetColor3d("Peacock"))

    renderer = vtk.vtkRenderer()
    renderWindow = vtk.vtkRenderWindow()
    renderWindow.SetWindowName("Line")
    renderWindow.AddRenderer(renderer)
    renderWindowInteractor = vtk.vtkRenderWindowInteractor()
    renderWindowInteractor.SetRenderWindow(renderWindow)

    renderer.SetBackground(colors.GetColor3d("Silver"))
    renderer.AddActor(actor)

    renderWindow.Render()
    renderWindowInteractor.Start()


if __name__ == '__main__':
    main()