# Display of variable
**URL:** https://discourse.paraview.org/t/display-of-variable/4021
**Category:** ParaView Support
**Tags:** python
**Created:** [April 10, 2020, 8:06am UTC](https://discourse.paraview.org/t/display-of-variable/4021 "2020-04-10T08:06:56Z")
**Posts on this page:** 10
**Page:** 1
### Author:  [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)
#### Post date: [April 10, 2020, 8:06am UTC](https://discourse.paraview.org/t/display-of-variable/4021/1 "2020-04-10T08:06:56Z")
Hello everyone.
I have a set of VTK files which is a 3D cube. I have attached the link to it below. I have loaded into the paraview and have created an animation view of it.
Now I want to display a variable “i” in the render view itself, as the animation progress. ( The variable ‘i’ has int value)
Example:
I have kept the animation frame number to 600. The start time is 0 and the end time is 6.
So as the animation progresses from 0 to 6, I want to print the variable ‘i’ in the render view
VTK file: [https://drive.google.com/open?id=1eN79xMyed0Uj9Uyugv5YSskwtzXsquTn](https://drive.google.com/open?id=1eN79xMyed0Uj9Uyugv5YSskwtzXsquTn)
I hope my query is clear.
Thank you in advance
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [April 10, 2020, 1:48pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/2 "2020-04-10T13:48:09Z")
You can use the **Annotate Time Filter** to show the current time.
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### Author:  [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)
#### Post date: [April 10, 2020, 5:06pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/3 "2020-04-10T17:06:33Z")
Thanks for your response.
That helped me a bit, but it would print the current time, which is not the required result.
Say for example:
for i in range (1,5)
print(i)
This would print 1 to 4, which is what I want to print.
Is it possible?
@cory.quammen
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [April 10, 2020, 5:15pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/4 "2020-04-10T17:15:47Z")
Is `i` the timestep index here? Or does `i` come from somewhere else?
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### Author:  [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)
#### Post date: [April 10, 2020, 5:22pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/5 "2020-04-10T17:22:47Z")
'i" isn’t a time step. I want to print it as a separate variable, whose value varies from -x\< i \> +x
@cory.quammen
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [April 10, 2020, 5:28pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/6 "2020-04-10T17:28:50Z")
Use the **Python Annotation** filter with the **Expression** set to
`"".join(map(lambda x: "%d " % x, range(0, 6)))`
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### Author:  [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)
#### Post date: [April 10, 2020, 5:40pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/7 "2020-04-10T17:40:06Z")
@cory.quammen
I want the variable to be dynamic. Your expression gives me a static variable where the all the values are printed in the beginning itself.
is it possible to change it as the animation progress?
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [April 10, 2020, 5:44pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/8 "2020-04-10T17:44:13Z")
> [@Samanvith\_A](#):
>
> I want the variable to be dynamic. Your expression gives me a static variable where the all the values are printed in the beginning itself.
I’m doing the best I can with the description you have provided up to this point. How do you plan to set the variable “i”? Is it a function of time? Do you want to set it in the GUI. Please be as specific as possible.
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### Author:  [@Samanvith\_A](https://discourse.paraview.org/u/Samanvith_A)
#### Post date: [April 10, 2020, 5:54pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/9 "2020-04-10T17:54:49Z")
@cory.quammen
I really appreciate your help.
I have 7 VTK files ( have provided the link before), whose animation has to be created. During the animation, I want to display a variable " i " to be displayed in the GUI ( side by the 3D cube). The value of “i” varies from ( 16.095 to 7.221, decreasing order) i.e as the animation progress with the time, the value starting from 16.095 up to 7.221 has to printed.
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [April 10, 2020, 6:05pm UTC](https://discourse.paraview.org/t/display-of-variable/4021/10 "2020-04-10T18:05:16Z")
Okay. Assuming “i” varies linearly with time, then use a **Python Annotation** filter with **Expression**
`16.095 - ((16.095-7.221)*time_index)/7`.
You may need to tweak the denominator, but this should work.