# initialize vtkBorderWidget with the click of the mouse
**URL:** https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519
**Category:** Support
**Created:** [January 30, 2020, 4:28pm UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519 "2020-01-30T16:28:47Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@zandarina](https://discourse.vtk.org/u/zandarina)
#### Post date: [January 30, 2020, 4:28pm UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519/1 "2020-01-30T16:28:47Z")
Dear all,
I want to obtain a ROI over an vtkimagedata (dicom) to perform certain statistics in that area (e.g., mean, std…). So i am using vtkBorderWidget. But i found out that it is always initialzed at the left bottom side of the image. And i do not understand why, it would be more logical to start the rectangle around the left click of the mouse.
So i tried to change the position in the widget representation to position it initially around the mouse position. But if i do that the mouse interaction is disabled. So i am not able to translate it anymore.
Has someone the same problem?. Is there any other widget that solves this issue?
Thanks
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### Author:  [@zandarina](https://discourse.vtk.org/u/zandarina)
#### Post date: [January 31, 2020, 11:15am UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519/2 "2020-01-31T11:15:36Z")
I have tried to use a bounding box instead as i read it is a bug from vtkborderwidget and it works but as it is a 3d representation i get a divided rectangle to show a 3d bounding box so the visualization is very ugly. What i want to obtain is something similar to the image. Is there any widget in vtk to do that, or i have to implement it by myself redoing the vtkBorderWidget considering the mouse position in the initialization and removing the behavour to ignore the observers if a coordinate is defined? Thanks
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### Author:  [@lassoan](https://discourse.vtk.org/u/lassoan)
#### Post date: [January 31, 2020, 2:25pm UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519/3 "2020-01-31T14:25:58Z")
Would you like to implement manual image segmentation?
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### Author:  [@zandarina](https://discourse.vtk.org/u/zandarina)
#### Post date: [January 31, 2020, 2:30pm UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519/4 "2020-01-31T14:30:54Z")
Hi, thank you for answering.i am not implementing the segmentation of the image. It is only to show some statistics of the region selected in a text widget.
Thanks
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### Author:  [@zandarina](https://discourse.vtk.org/u/zandarina)
#### Post date: [February 4, 2020, 8:46am UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519/5 "2020-02-04T08:46:03Z")
hello, what i would like to acheive is this but a rectangle instead of a bounding box. Any sugestion?. Thanks
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### Author:  [@zandarina](https://discourse.vtk.org/u/zandarina)
#### Post date: [February 5, 2020, 2:02pm UTC](https://discourse.vtk.org/t/initialize-vtkborderwidget-with-the-click-of-the-mouse/2519/6 "2020-02-05T14:02:23Z")
I will make it with vtklinewidgets if someone is interested please let me know. It might be incorporated in vtk. As i think it can be very useful.
Thanks