# How to plot a smooth curve and attached to a surface?

**URL:** https://discourse.vtk.org/t/how-to-plot-a-smooth-curve-and-attached-to-a-surface/4706
**Category:** Development
**Created:** [November 20, 2020, 3:38pm UTC](https://discourse.vtk.org/t/how-to-plot-a-smooth-curve-and-attached-to-a-surface/4706 "2020-11-20T15:38:25Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Beheshtian](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/b/dfb087/32.png) [@Beheshtian](https://discourse.vtk.org/u/Beheshtian)
#### Post date: [November 20, 2020, 3:38pm UTC](https://discourse.vtk.org/t/how-to-plot-a-smooth-curve-and-attached-to-a-surface/4706/1 "2020-11-20T15:38:25Z")

</div>

Hi all,  
I’m going to plot a curve that attached to a surface ( polydata) and be smooth. how can I do that?  
thank you all.