open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi,

I'm trying to run a simulation to model wave propagation in a harbor using Artemis. I want to impose incident wave at the southern, northern and western boundaries but I'm having some troubles understanding the difference betwenn TETAP, TETAB and TETAH.

If I want to impose swell at 20 deg counting positively in the trigonometric sense relatively to the x axis.

So, what sould be the value of TETAP, TETAB and TETAH ?
I've attached the Bathy image.

Thank you for your answer