Visualise the normal vector

[yongxing (Yongxing Wang)]

Please can someone let me know how to visualise the normal vector at the boundary (or an interior interface) of a domain?

Thanks in advance!

YX

[frederichecht (Frédéric Hecht)]

Sorry no simple way, but you can do some think like

plot-normals.edp (348 Bytes) !

the normals of a carre mesh:

plot-normal.edp|593x500

[yongxing (Yongxing Wang)]

It works perfectly! Thank you very much.
Yongxing.