[Paraview] Adding arrow to 3D plot

[Nico Van Cleemput]

Dear all

I'm sure that the following is a simple question, and I found it a few
times, but didn't see any solution anywhere.

I'm plotting a 3D model loaded from a file, e.g., the cube in the following
file:

====
# vtk DataFile Version 3.0
vtk output
ASCII
DATASET STRUCTURED_GRID
DIMENSIONS 2 2 2
POINTS 8 float
0 0 0 0 0 1 0 1 0
0 1 1 1 0 0 1 0 1
1 1 0 1 1 1

CELL_DATA 1
====

Next I want to add an arrow that starts at (x1,y1,z1) and ends at
(x2,y2,z2). How can I add this arrow?

I can add an arrow using Sources > Arrow. In Display I can then specify
translation, scale, orientation and origin, but it's not clear to me which
values I need to enter to get the arrow I want.

I'm using ParaView 5.4.0.

Cheers
Nico
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