[vtkusers] Gridline as the background in VTK (Python)

[Slaughter, Andrew E]

Here is a script that builds an empty plot, this should be a good starting
point.

#!/usr/bin/env python
import vtk

chart = vtk.vtkChartXY()
plot = vtk.vtkPlotPoints()
chart.AddPlot(plot)

view = vtk.vtkContextActor()
view.GetScene().AddItem(chart)

renderer = vtk.vtkRenderer()
renderer.AddActor(view)
renderer.SetBackground(0.5,0.5,0.5)

window = vtk.vtkRenderWindow()
window.SetSize(500, 500)
window.AddRenderer(renderer)

interactor = vtk.vtkRenderWindowInteractor()
interactor.SetRenderWindow(window)
interactor.Initialize()

window.Render()
interactor.Start()

On Tue, Jun 26, 2018 at 10:04 AM, mafiaskafia <tsilveira1993 at gmail.com>
wrote:

> Hello, I would like to know if it's possible to have a gridline as the
> background of the vtkRenderer (instead of a blank color) like this:
>   <https://urldefense.proofpoint.com/v2/url?u=http-
> 3A__vtk.1045678.n5.nabble.com_file_t342418_halpaa.png&d=DwICAg&c=
> 54IZrppPQZKX9mLzcGdPfFD1hxrcB__aEkJFOKJFd00&r=h7heP8xwI1i_
> HikChvhFbEBurKirgfOCdwgBxB9lM8c&m=oXz2Jh2vN4kLzvKkknrbCJz0YhnBRG
> hw5Oytmjuqv4Q&s=TLZky1NKFTXcRhpwzuI0rtCdYor9i-XOTRQT_tXZTls&e=> .
> I'm doing a program that does a 2D cross-section analysis using FEM (gives
> its centroid, inertias, etc), so i would need a gridline to display, for
> example, the centroids more efficiently. Is this possible with vtk?
>
> Thanks in advance,
>
> Cheers
>
>
>
> --
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