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Thank you cgnieder, I'll definitely try this out !

Hi LaTeX Community,
I wish I could represent a plane wave in 3D with tikz such as this example : http://www.rncan.gc.ca/sites/www.nrcan.gc.ca/files/earthsciences/images/resource/tutor/polarim/chapter1/images/fig1_1.gif

But I don't know how to trace a function following a 3D vector, is it possible ...