# Get into the ground when zooming

**URL:** <https://community.cesium.com/t/get-into-the-ground-when-zooming/6512>\
**Category:** CesiumJS\
**Created:** [January 31, 2018, 9:40am UTC](https://community.cesium.com/t/get-into-the-ground-when-zooming/6512 "2018-01-31T09:40:04Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hanjunjun8](https://avatars.discourse-cdn.com/v4/letter/h/b4bc9f/32.png) [@hanjunjun8](https://community.cesium.com/u/hanjunjun8)\
**Post date:** [January 31, 2018, 9:40am UTC](https://community.cesium.com/t/get-into-the-ground-when-zooming/6512/1 "2018-01-31T09:40:04Z")

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1. A concise explanation of the problem you're experiencing.  
I have recently encountered a problem in Cesium. When I zoom the map, I often go under the map. How can I not get into the underground, the effect please look at the appendix

2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.  
I want to improve user experience

4. The Cesium version you're using, your operating system and browser.  
Cesium-1.4

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**Author:** ![Gabby\_Getz](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/gabby_getz/32/7838_2.png) [@Gabby\_Getz](https://community.cesium.com/u/Gabby_Getz)\
**Post date:** [January 31, 2018, 9:57pm UTC](https://community.cesium.com/t/get-into-the-ground-when-zooming/6512/2 "2018-01-31T21:57:25Z")

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Hi there,

We have an issue open for this ([#5837](https://github.com/AnalyticalGraphicsInc/cesium/issues/5837)) and a solution has been proposed ([#6012](https://github.com/AnalyticalGraphicsInc/cesium/pull/6012)). Keep an eye on both of those, I’ve bumped the issue with this report as well.

Thanks,

Gabby