# Intersection between surfaces
**URL:** https://discourse.paraview.org/t/intersection-between-surfaces/6397
**Category:** ParaView Support
**Created:** [February 5, 2021, 9:39am UTC](https://discourse.paraview.org/t/intersection-between-surfaces/6397 "2021-02-05T09:39:45Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@crpiceda](https://discourse.paraview.org/u/crpiceda)
#### Post date: [February 5, 2021, 9:39am UTC](https://discourse.paraview.org/t/intersection-between-surfaces/6397/1 "2021-02-05T09:39:45Z")
Hello,
I am trying to extract the intersection line between two Delaunay 2D filters, as shown in the picture. I there a way to this in Paraview?
Thanks in advance
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [February 5, 2021, 10:47am UTC](https://discourse.paraview.org/t/intersection-between-surfaces/6397/2 "2021-02-05T10:47:35Z")
This should help:
> [@Compute the signed distance field from a polygonal mesh](https://discourse.paraview.org/t/compute-the-signed-distance-field-from-a-polygonal-mesh/123):
>
> Goal Compute the signed distance field from points in a data set to a polygonal mesh. The signed distance field has many applications in computational geometry, and can be used, for instance, to find intersections of objects with a polygonal mesh. Background A signed distance field is a point-associated field that gives the distance from each point in a data set to some location or object. In this case, we’ll compute the signed distance as the nearest point on a polygonal mesh. The sign of the …
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### Author:  [@crpiceda](https://discourse.paraview.org/u/crpiceda)
#### Post date: [February 8, 2021, 8:53am UTC](https://discourse.paraview.org/t/intersection-between-surfaces/6397/3 "2021-02-08T08:53:26Z")
Thanks!