Point Cloud elevation

Hello, I would like to know how to see a deformation of a wall with a point cloud !

I attached a POD and set elevation style.  My POD is not perpendicular, so I rotated it to have an elevation in X or Y.

After I have roted the POD, I set the style again to have an elevation but the color rotated with the POD !  I try with ACS but stil not good result.  Why the color of the POD is linked to the POD and not to the view ?

    

Thank you,

Fabrice