in the new version of DICregularGridClientIncremental.py for the vtk
this: subpixel-displacements-xyz: Ffield[ :, 0:3:-1, 3 ]
should be written as: subpixel-displacements-xyz: Ffield[ :, -2::-1, 3 ]
this: subpixel-displacements-xyz: Ffield[ :, 0:3:-1, 3 ]
should be written as: subpixel-displacements-xyz: Ffield[ :, -2::-1, 3 ]