# Data array multi-component labelling

**URL:** https://discourse.paraview.org/t/data-array-multi-component-labelling/8006
**Category:** ParaView Support
**Created:** [September 16, 2021, 1:42pm UTC](https://discourse.paraview.org/t/data-array-multi-component-labelling/8006 "2021-09-16T13:42:18Z")
**Posts on this page:** 1
**Showing post:** 11

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [January 12, 2022, 2:38pm UTC](https://discourse.paraview.org/t/data-array-multi-component-labelling/8006/11 "2022-01-12T14:38:09Z")

</div>

Actually supported by both .vtk and .vtu/vtp:  
[cname.vtu](https://discourse.paraview.org/uploads/short-url/vLzYB3gohi6YfU3lZCdDPROQnhs.vtu) (2.4 KB)  
[cname.vtk](https://discourse.paraview.org/uploads/short-url/3L629fcFIslMyiOsG0nWCOSzfbe.vtk) (528 Bytes)  
[cname.vtp](https://discourse.paraview.org/uploads/short-url/mMkvfuCNOgTCNub1DLZxyMBzQhr.vtp) (3.4 KB)

vtk:

```auto
[glow@arch ~/tmp]$ cat cname.vtk 
# vtk DataFile Version 5.1
vtk output
ASCII
DATASET POLYDATA
POINTS 1 float
0 0 0 
METADATA
INFORMATION 2
NAME L2_NORM_RANGE LOCATION vtkDataArray
DATA 2 0 0 
NAME L2_NORM_FINITE_RANGE LOCATION vtkDataArray
DATA 2 0 0 

VERTICES 2 1
OFFSETS vtktypeint64
0 1 
CONNECTIVITY vtktypeint64
0 
POINT_DATA 1
FIELD FieldData 1
Vals 3 1 double
17 13 7 
METADATA
COMPONENT_NAMES

name

INFORMATION 2
NAME L2_NORM_RANGE LOCATION vtkDataArray
DATA 2 22.5167 22.5167 
NAME L2_NORM_FINITE_RANGE LOCATION vtkDataArray
DATA 2 22.5167 22.5167 

```

vtp/vtu:

```auto
[glow@arch ~/tmp]$ cat cname.vtu 
<VTKFile type="UnstructuredGrid" version="1.0" byte_order="LittleEndian" header_type="UInt64">
  <UnstructuredGrid>
    <Piece NumberOfPoints="1" NumberOfCells="1" >
      <PointData>
        <DataArray type="Float64" Name="Vals" NumberOfComponents="3" ComponentName1="name" format="appended" RangeMin="22.516660498" RangeMax="22.516660498" offset="0" >
          <InformationKey name="L2_NORM_RANGE" location="vtkDataArray" length="2">
            <Value index="0">

```

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