# Assigning node number vtk file

**URL:** https://discourse.vtk.org/t/assigning-node-number-vtk-file/5859
**Category:** Support
**Created:** [May 25, 2021, 8:18am UTC](https://discourse.vtk.org/t/assigning-node-number-vtk-file/5859 "2021-05-25T08:18:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![gaetanocmr](https://discourse.vtk.org/user_avatar/discourse.vtk.org/gaetanocmr/32/3439_2.png) [@gaetanocmr](https://discourse.vtk.org/u/gaetanocmr)
#### Post date: [May 25, 2021, 8:18am UTC](https://discourse.vtk.org/t/assigning-node-number-vtk-file/5859/1 "2021-05-25T08:18:46Z")

</div>

Hello there,  
I’m facing the following problem:  
I’m making a vtk file with all my point, but I do not want to assign the default number of the node in vtk I have my numbering instead.  
I’m generating a file like this:

```
# vtk DataFile Version 2.0 
Prova_strutturale_mesh 
ASCII 
DATASET POLYDATA 
POINTS 174 float 
0.0 0.0 0.0
0.0 0.0 0.19238977724999995
0.0 0.0 0.6124497279
0.0 0.0 1.18605117315
.
.
.

```

So vtk has it’s own numbering, but I know, for example, that the first node has tag 150, how to assign it?