PHOTON USE
    x
    x1


    msg(  PLANT generated grid
    gr z m
    gr y m
    ENDUSE

  DISPLAY

    PLANT is used to create body-fittted-coordinate grids
    defined by formulae.
    

    Example: 3D hypocycloidal beam
  ENDDIS


TEXT( 3D hypocycloidal beam

    GROUP 6. Body-fitted coordinates or grid distortion
nx=14;ny=10;nz=10
bfc=t;dumpc(grid);readco(grid)

CSG1=PHI;CSG2=XYZ;lsweep=1;IDISPA=1
STORE(mark)
NAMSAT=MOSG

   PLANTBEGIN
real(twopi,littler)
littler=1.0;twopi=2.0*3.14157
RG(1)=TWOPI
    XC=:LITTLER:*FLOAT(J-1)/FLOAT(NY)*   $
                (2.*COS(RG(1)*FLOAT(I-1)/FLOAT(NX))$
                +COS(2.*RG(1)*FLOAT(I-1)/FLOAT(NX)))
    YC=:LITTLER:*FLOAT(J-1)/FLOAT(NY)*   $
                (2.*SIN(RG(1)*FLOAT(I-1)/FLOAT(NX))$
                -SIN(2.*RG(1)*FLOAT(I-1)/FLOAT(NX)))
    ZC=20.*FLOAT(K-1)/FLOAT(NZ)
   PLANTEND

dmpstk=t
DISTIL=T
EX(MARK)=1.000E-10
 LIBREF=505
STOP