# \[Help\] vtkPointPicker is not detecting points in glyph after scaling through camera

**URL:** https://discourse.vtk.org/t/help-vtkpointpicker-is-not-detecting-points-in-glyph-after-scaling-through-camera/5995
**Category:** Support
**Created:** [June 14, 2021, 6:16pm UTC](https://discourse.vtk.org/t/help-vtkpointpicker-is-not-detecting-points-in-glyph-after-scaling-through-camera/5995 "2021-06-14T18:16:04Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![srivastavaayurv](https://discourse.vtk.org/user_avatar/discourse.vtk.org/srivastavaayurv/32/3695_2.png) [@srivastavaayurv](https://discourse.vtk.org/u/srivastavaayurv)
#### Post date: [June 14, 2021, 6:16pm UTC](https://discourse.vtk.org/t/help-vtkpointpicker-is-not-detecting-points-in-glyph-after-scaling-through-camera/5995/1 "2021-06-14T18:16:04Z")

</div>

Hello!  
I am using vtk to generate a a glyph of points. On double click , the point should be selected and highlighted green. The feature works correctly before scaling, however after scaling through the camera like such:  
self.\_\_camera = self.\_\_renderer.GetActiveCamera()  
transform = vtk.vtkTransform()  
transform.Scale(1,.1,.01)  
self.\_\_camera.SetModelTransformMatrix(transform.GetMatrix())  
The vtkPointPicker is no longer detecting points, other than a point located on the origin.  
I have checked this by outputting the pointId to make sure, and before scaling it is correctly outputting the correct pointid, but after scaling it will only output either 0 or -1.  
I also tried scaling through the actor to no avail. Is there any solution to this or just a limitation of glyphs?