# Interactive slice intersections

**URL:** https://discourse.slicer.org/t/interactive-slice-intersections/21677
**Category:** Support
**Tags:** feature
**Created:** [January 28, 2022, 1:55pm UTC](https://discourse.slicer.org/t/interactive-slice-intersections/21677 "2022-01-28T13:55:17Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)
#### Post date: [January 31, 2022, 8:03pm UTC](https://discourse.slicer.org/t/interactive-slice-intersections/21677/9 "2022-01-31T20:03:13Z")

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It seems like there is desire from some groups to have the open crosshair display type, while others prefer the lines actually fully intersecting. Due to this requirement I believe the options have to be like what was already done for the “Crosshair” object type. If just one of these options was all that was needed, then the simple checkbox could be done, but that doesn’t seem to be the case here.

> [@dgmato](#):
>
> These three options would substitute the “Slice Intersections” checkbox. Then, we would have one check box (“Interaction”) to activate/deactivate the interactive mode, and the “Interaction Options” to enable/disable the translation and rotation actions during interaction. Right?

Yes that is correct.

I think this similar duplication between “Slice Intersections” functionality and the “Crosshair” object functionality is what I was discussing at in another thread. This post (linked below) from @cpinter reflects on this topic of maybe “Slice intersections” is truly replacing the “Crosshair” object because it’s hard to see a reason to have duplicate options for each here in this menu.

> [@Crosshair vs Slice Intersections](https://discourse.slicer.org/t/crosshair-vs-slice-intersections/21700/5):
>
> To reflect on the actual topic, I have a hard time finding a usage for the crosshair too. It is a singleton, and so there is a single crosshair in the application, sort of like a “current point of interest” as I interpret it. The one thing I can think of where crosshair is more than slice intersections is that it is visible in 3D. Maybe we should add a checkbox for slice intersection visiblity in 3D and get rid of crosshairs altogether?

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