# Ask for help, I use the mouse to delimit 3 d line, at the beginning is right, but as long as the mouse rotated the camera to delimit again error,line posion is error, do not know what reason is

**URL:** https://discourse.vtk.org/t/ask-for-help-i-use-the-mouse-to-delimit-3-d-line-at-the-beginning-is-right-but-as-long-as-the-mouse-rotated-the-camera-to-delimit-again-error-line-posion-is-error-do-not-know-what-reason-is/7588
**Category:** Support
**Tags:** proposal
**Created:** [January 7, 2022, 6:56am UTC](https://discourse.vtk.org/t/ask-for-help-i-use-the-mouse-to-delimit-3-d-line-at-the-beginning-is-right-but-as-long-as-the-mouse-rotated-the-camera-to-delimit-again-error-line-posion-is-error-do-not-know-what-reason-is/7588 "2022-01-07T06:56:16Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![Liudeke](https://discourse.vtk.org/user_avatar/discourse.vtk.org/liudeke/32/4516_2.png) [@Liudeke](https://discourse.vtk.org/u/Liudeke)
#### Post date: [January 7, 2022, 6:56am UTC](https://discourse.vtk.org/t/ask-for-help-i-use-the-mouse-to-delimit-3-d-line-at-the-beginning-is-right-but-as-long-as-the-mouse-rotated-the-camera-to-delimit-again-error-line-posion-is-error-do-not-know-what-reason-is/7588/1 "2022-01-07T06:56:16Z")

</div>

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