# why the slice cursor move back to the center?

**URL:** https://discourse.vtk.org/t/why-the-slice-cursor-move-back-to-the-center/1664
**Category:** Support
**Created:** [August 29, 2019, 8:32am UTC](https://discourse.vtk.org/t/why-the-slice-cursor-move-back-to-the-center/1664 "2019-08-29T08:32:49Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![pingdan](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/p/22d042/32.png) [@pingdan](https://discourse.vtk.org/u/pingdan)
#### Post date: [August 29, 2019, 8:32am UTC](https://discourse.vtk.org/t/why-the-slice-cursor-move-back-to-the-center/1664/1 "2019-08-29T08:32:49Z")

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my steps:

1. at the upper right view, move the red cursor line from center to right.  
2.at he upper left view, I change the slice along z axis through mousewheel backward or forward. but the red line automatic move to center.  
I think when I change slice along z axis, the other axis should keep last status.

I use GetOrigin() to get the vtkPlaneSource origin point. the data is right.  
defaut figure

 ![1](https://discourse.vtk.org/uploads/default/original/1X/816a0066f376a8f2d340ff63041c3bf79b07edab.png)  
step 1, move the red line  
 ![2](https://discourse.vtk.org/uploads/default/original/1X/e485cdb7d08ed41121b4cef42802d37a2156ca12.png)  
step 2, change the slice with mousewheel  
 ![3](https://discourse.vtk.org/uploads/default/original/1X/d81debf44a07b8af128af8bfe42ebd00eff9c3cb.png)

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<div class="post-metadata">

### Author: ![pingdan](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/p/22d042/32.png) [@pingdan](https://discourse.vtk.org/u/pingdan)
#### Post date: [August 30, 2019, 2:58am UTC](https://discourse.vtk.org/t/why-the-slice-cursor-move-back-to-the-center/1664/2 "2019-08-30T02:58:02Z")

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I have found the reason.