# Parent vessel reconstruction vmtk command line

**URL:** <https://discourse.slicer.org/t/parent-vessel-reconstruction-vmtk-command-line/48873>\
**Category:** VMTK\
**Created:** [November 13, 2026, 1:38pm UTC](https://discourse.slicer.org/t/parent-vessel-reconstruction-vmtk-command-line/48873 "2026-11-13T13:38:45Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![amscosta](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/amscosta/32/80975_2.png) [@amscosta](https://discourse.slicer.org/u/amscosta)\
**Post date:** [November 13, 2026, 1:38pm UTC](https://discourse.slicer.org/t/parent-vessel-reconstruction-vmtk-command-line/48873/1 "2026-11-13T13:38:45Z")

</div>

Hello,

I am using the parent vessel reconstruction technique outlined in : [Parent vessel reconstruction | vmtk - the Vascular Modelling Toolkit](http://vmtk.github.io/tutorials/ParentVesselReconstruction.html)

Unfortunatelly I am getting a “bumping” surface in the reconstructed parent (see the arrow in the attached figure). How can I “smooth” that bumping ? What settings in the command line should I play with?

Here it is the sequence of command lines I am using :

vmtk vmtkdelaunayvoronoi -ifile 203.vtp -removesubresolution 1 -voronoidiagramfile 203\_voronoi.vtp  
vmtk vmtkcenterlines -ifile 203.vtp -endpoints 1 --pipe vmtkcenterlineresampling -length 0.1 -ofile 203\_forwardcl.vtp  
python patchandinterpolatecenterlines.py . 0203 lateral  
python clipvoronoidiagram.py . 0203  
python paralleltransportvoronoidiagram.py . 0203 1

 ![parent_vessel_reconstruction](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/9/a92b05ff0f97f90d6219c123b6f6ac1bd6990ae5.jpeg)