# Fetch and Catalyst

**URL:** https://discourse.paraview.org/t/fetch-and-catalyst/9553
**Category:** In Situ Support
**Created:** [May 2, 2022, 3:13pm UTC](https://discourse.paraview.org/t/fetch-and-catalyst/9553 "2022-05-02T15:13:29Z")
**Posts on this page:** 1
**Showing post:** 6

<div class="post-metadata">

### Author: ![robertsawko](https://discourse.paraview.org/user_avatar/discourse.paraview.org/robertsawko/32/6283_2.png) [@robertsawko](https://discourse.paraview.org/u/robertsawko)
#### Post date: [May 2, 2022, 5:49pm UTC](https://discourse.paraview.org/t/fetch-and-catalyst/9553/6 "2022-05-02T17:49:52Z")

</div>

Thanks for this, @utkarsh.ayachit. Unfortunately, as I outlined [here](https://discourse.paraview.org/t/clean-installation-of-paraview-5-10-with-superbuild/9043/4) I am still struggling with recreating the same build with Catalyst on 5.10.x, but if you say that `FetchData` can sort out this problem, I will give it another go, presently.

I am just surprised that there is no other way to get a reference to VTK object. I understand `ProgrammableFilter` is a proxy, but we even specify `vtkPolyData` as output so I was looking for a clean way to get just that.

---

_[View the full topic](https://discourse.paraview.org/t/fetch-and-catalyst/9553)._