This table has for purpose to define the radiation periodicity in 2D.

The two first columns correspond to the coordinates of the invariant Point and teta is the angle of the periodicity of rotation.

Be aware that the indicated angle must give 360 degres when multiply by a integer. Typically 60 degres or 120 degres are valid angle, but 55 degres is not.

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SYRTHES version : 4.1.0
Name help file : Vf_Pe_2D_table.html
I. Rupp, C. Peniguel - january 2013
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