# Find the intersection between sources

**URL:** https://discourse.paraview.org/t/find-the-intersection-between-sources/3383
**Category:** ParaView Support
**Tags:** python
**Created:** [January 22, 2020, 8:41pm UTC](https://discourse.paraview.org/t/find-the-intersection-between-sources/3383 "2020-01-22T20:41:57Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![majo\_vlas](https://discourse.paraview.org/user_avatar/discourse.paraview.org/majo_vlas/32/2567_2.png) [@majo\_vlas](https://discourse.paraview.org/u/majo_vlas)
#### Post date: [January 22, 2020, 8:41pm UTC](https://discourse.paraview.org/t/find-the-intersection-between-sources/3383/1 "2020-01-22T20:41:57Z")

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I have two sources, and I apply transformations to them. I want to find the distance to the point of convergence. Is there a way to do that? Or get the coordinates of the intersection of the two sources?

 ![Screen Shot 2020-01-22 at 17.37.29](https://discourse.paraview.org/uploads/default/original/2X/d/d96af197ddec66cb9320c342aefffc92642d6a05.png)

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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: [January 23, 2020, 1:58am UTC](https://discourse.paraview.org/t/find-the-intersection-between-sources/3383/2 "2020-01-23T01:58:40Z")

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Ruler source let you compute distance.  
You can’t compute the intersection within ParaView but , if you are a developper, it can be done with vtkbool : [https://github.com/zippy84/vtkbool](https://github.com/zippy84/vtkbool)  
or with the vtkBooleanOperationPolyDataFilter [https://vtk.org/doc/nightly/html/classvtkBooleanOperationPolyDataFilter.html](https://vtk.org/doc/nightly/html/classvtkBooleanOperationPolyDataFilter.html)