# AbcissaMetric does not write

**URL:** <https://discourse.slicer.org/t/abcissametric-does-not-write/19012>\
**Category:** VMTK\
**Created:** [August 1, 2021, 11:40am UTC](https://discourse.slicer.org/t/abcissametric-does-not-write/19012 "2021-08-01T11:40:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![cborras](https://avatars.discourse-cdn.com/v4/letter/c/3ec8ea/32.png) [@cborras](https://discourse.slicer.org/u/cborras)\
**Post date:** [August 1, 2021, 11:40am UTC](https://discourse.slicer.org/t/abcissametric-does-not-write/19012/1 "2021-08-01T11:40:50Z")

</div>

Operating system: Windows 10

Hi everybody! I am working on aortas and I am using this command for the writing of the angular and abcissa coordinates:

```auto
#vmtkbranchmetrics -ifile aorta_clipped.vtp -centerlinesfile Ht_Lum_StAc_cl.vtp -abscissasarray Abscissas -normalsarray ParallelTransportNormals -groupidsarray GroupIds -centerlineidsarray CenterlineIds -tractidsarray TractIds -blankingarray Blanking -radiusarray MaximumInscribedSphereRadius -ofile aorta_clipped_metrics.vtp

```

However, the AbcissaMetric is writing the same value for the whole geometry while the angularMetric works fine as expected.

I do not know what could be the problem since I am just following the vmtk page ([Mapping and Patching | vmtk - the Vascular Modelling Toolkit](http://www.vmtk.org/tutorials/MappingAndPatching.html)).

I would really appreciate it if anyone has encountered or know how to solve this!

Thanks!  
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