# How to see ids of polydata objects ?
**URL:** https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682
**Category:** ParaView Support
**Tags:** vtk
**Created:** [February 27, 2020, 12:15pm UTC](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682 "2020-02-27T12:15:12Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@lainegates](https://discourse.paraview.org/u/lainegates)
#### Post date: [February 27, 2020, 12:15pm UTC](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682/1 "2020-02-27T12:15:12Z")
Hi, guys.
I am displaying data with paraview.
The data is composed of discrete elements. i.e. each element is displayed by a PolyData.
I write result into \*.vtp file.
I can see all elements together.
The problem is that there are too many elements that I cannot distinguish them. By other words, I want to id for each polydata.
Thus, I want to ask, if paraview could display id at center of each polydata? Or any other places ?
Any alternative way is also helpful
Thanks.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 27, 2020, 12:26pm UTC](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682/2 "2020-02-27T12:26:08Z")
Are you using a multiblock ?
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### Author:  [@lainegates](https://discourse.paraview.org/u/lainegates)
#### Post date: [February 27, 2020, 12:35pm UTC](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682/3 "2020-02-27T12:35:25Z")
Not currently.
Do you mean by using \*.vtm ?
Could paraview display id of each polydata if I use \*.vtm?
I mean, display id of each polydata at center of the polydata.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 27, 2020, 12:43pm UTC](https://discourse.paraview.org/t/how-to-see-ids-of-polydata-objects/3682/4 "2020-02-27T12:43:36Z")
Yes, .vtm stands for VTk Multiblock
I do not think this is possible.