Good night all MPB user

I want to ask about how to define block in MPB

I try to define triangular lattice structure by MPB, with block as basis
but I do not now how to get the usual block. When I define e1,e2,e3 like 
following

(e1 0.5 0.5 0) (e2 0.866 -0.866 0)

I get thee rotated block rather than usual block. Please tell me how to define 
the block and why I use lattice vector
 (basis1 (/ (sqrt 3) 2) 0.5)
(basis2 (/ (sqrt 3) 2) -0.5).

Another thing I want to know is, if there is a way  in MPB  to get  the  
k-point  of  band  calculation  in  x-y  basis,  not  reciprocal  lattice  
basis.This is a problem when I try to get EFS

Thank you for the guidance 



Andika A




      
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