Waveguide in 2D-PCs of triangular symmetry

Dear Steven and MPB's users,
   
     I would like to calculate the waveguide dispersion of 2D triangular PCs. The waveguide is formed by moving (up and down) two first line air holes ( W = 0.75*sqrt3 = 0.75*W1). 
   
  (set! geometry-lattice (make lattice 
                             (basis1 (/ (sqrt 3) 2) 0.5)
                             (basis2 (/ (sqrt 3) 2) -0.5)
                             (size 1 supercell-y no-size)))
   
  (set! default-material (make dielectric (epsilon eps)))
   
  (set! geometry 
      (append
        (geometric-object-duplicates (vector3 0 -1 0) 0 5
          (make cylinder (center 0 -0.75 0) (radius r) (height infinity) (material air))
        )
        (geometric-object-duplicates (vector3 0 1 0) 0 5
          (make cylinder (center 0 0.75 0) (radius r) (height infinity) (material air))
        )
    ))
   
  I don't know why my *ctl file is wrong (Please refer in the attached files). The structure that I would like to expect is Expection. The structure that I get from my *ctl file is Real (Two first line holes are not aligned). Could you correct my clt file?
   
     I thank you very much, and looking forward to replying from you.
   
  Regards,
  Nils Jensen

       
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