# WarpByVector: cannot get data from input object in a python script
**URL:** https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740
**Category:** ParaView Support
**Created:** [May 30, 2024, 8:19am UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740 "2024-05-30T08:19:19Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Trophime](https://discourse.paraview.org/u/Trophime)
#### Post date: [May 30, 2024, 8:19am UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/1 "2024-05-30T08:19:19Z")
Hi,
I’m trying to automate some postprocessing.
I would like to generate view of fields on a deformed geometry
I’ve tried something like that:
warpByVector1 = WarpByVector(Input=input)
warpByVector1.Vectors = [“POINTS”, “elasticity.displacement”]
warpByVector1.ScaleFactor = factor
warpByVector1.UpdatePipeline()
The trouble is that, no PointData nor CellData are attached to warpObject1:
warpByVector1.PointData.keys() returns an empty list whereas input.PointData.keys() is not empty.
I must miss something.
Any hints will be great
Best
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 30, 2024, 11:35am UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/2 "2024-05-30T11:35:51Z")
Please share your data
---
### Author:  [@Trophime](https://discourse.paraview.org/u/Trophime)
#### Post date: [May 30, 2024, 11:56am UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/3 "2024-05-30T11:56:54Z")
[testAxi.pvsm](https://discourse.paraview.org/uploads/short-url/daR9WWGHhyLMEvssh61muKdQhG6.pvsm) (206.5 KB)
The original dataset is an Ensight Gold case.
I can sent you the original dataset if needed.
Would you need the python script that automates the post-processing?
---
### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 30, 2024, 11:58am UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/4 "2024-05-30T11:58:33Z")
> [@Trophime](#):
>
> The original dataset is an Ensight Gold case.
I’ll need this too.
> Would you need the python script that automates the post-processing?
I need just the needed information to reproduce the issue
---
### Author:  [@Trophime](https://discourse.paraview.org/u/Trophime)
#### Post date: [May 30, 2024, 12:05pm UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/5 "2024-05-30T12:05:00Z")
You shall be able to download an tgz with this link [CNRS CRIC](https://nextcloud.grenoble.cnrs.fr/s/zLmN836zoWiom2w)
PS: I use pv 5.11 on debian Bookworm
---
### Author:  [@Kenneth\_Moreland](https://discourse.paraview.org/u/Kenneth_Moreland)
#### Post date: [June 3, 2024, 1:02pm UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/6 "2024-06-03T13:02:22Z")
In your script, you have
```py
warpByVector1.Vectors = ['POINTS', 'elasticity.displacement']
```
However, your data has no field named `elasticity.displacement`. I think you mean this:
```py
warpByVector1.Vectors = ['POINTS', 'cfpdes.elastic.displacement']
```
With a proper vector field to warp by, the operation succeeds and I see the keys to the `PointData` object that I would expect.
---
### Author:  [@Trophime](https://discourse.paraview.org/u/Trophime)
#### Post date: [June 5, 2024, 2:45pm UTC](https://discourse.paraview.org/t/warpbyvector-cannot-get-data-from-input-object-in-a-python-script/14740/7 "2024-06-05T14:45:18Z")
My bad. Thanks. Sorry for the trouble.