# 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:** 1
**Showing post:** 2

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### 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: [February 5, 2021, 10:47am UTC](https://discourse.paraview.org/t/intersection-between-surfaces/6397/2 "2021-02-05T10:47:35Z")

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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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