Dear Meep users:
   I am trying to build one needle, its base is rectangular and area varies 
with the height.
   I define this object as 

 (make block (center 0 0 (* 0.5 Lz)) (size L H_tri Lz) (material GaAs)
 (e1 1 0 0) (e2 0 1 0)
 (e3 (* 1 (sin ang2) (cos (* 0.5 ang)) ) (* 1 (sin ang2) (sin (* 0.5 ang))) 
(cos ang2))  )

ang2 is the angle relative to z-axis.
ang is the angle relative to x-axis.

When I check it in x=0 plane, the I can see trapezoid.
 But when I check it on y=0, I saw a parallelogram.
  I wonder if anything wrong with my code.

  Thank you

Cheers
Adrian 



      
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