[Paraview] How to slice a 3D vector field?

[Fred Fred]

Hello,
I would like to slice a 3D dataset with vector data attached to points but I would like to keep only the tangential part of the vectors, so as to compute streamlines lying on the plane then. If I use the slice tool, I can extract a place but with 3D vectors, which means that if I compute streamlines I get nothing because the is-in-domain test make the integration stooping immediatly (at least I suppose this is the reason). So I need to create a 2D vector field from a 3D one. Any advice?


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