FULLRING: sbend, rho = 7.112, field_calc = fieldmap, tracking_method = runge_kutta, num_steps=1000, mat6_calc_method = tracking,  angle=twopi, &
grid_field= {
geometry= xyz,
field_type = magnetic, 
field_scale = -1., 
curved_ref_frame = T,
r0 = (  0.0,  0.0000000E+00,  0.00000000E+00),
dr = (  0.3,  0.3, 4.46860138E+01),
ele_anchor_pt = BEGINNING,
pt(   -1,     -1,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(   -1,      0,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(   -1,      1,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    0,     -1,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    0,      0,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    0,      1,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    1,     -1,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    1,      0,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    1,      1,    0) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(   -1,     -1,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(   -1,      0,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(   -1,      1,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    0,     -1,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    0,      0,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    0,      1,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    1,     -1,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    1,      0,    1) = (  0.0, -1.4513,  0.00000000000000E+00),
pt(    1,      1,    1) = (  0.0, -1.4513,  0.00000000000000E+00)},
! radial field: Br = B0/R, B0/(R0-dr) -> B0/R0 -> B0/(R0+dr), Br = B0(R0/(R0-dr),1,R0/(R0-dr)), R0=7.221, dr=0.3
! Br = radial_field * (1.0440, 1.0,.95953)
grid_field= {
geometry= xyz,
field_type = magnetic, 
field_scale = radial_field, 
curved_ref_frame = T,
r0 = (  0.0,  0.0000000E+00,  0.00000000E+00),
dr = (  0.3,  0.3, 4.46860138E+01),
ele_anchor_pt = BEGINNING,
pt(   -1,     -1,    0) = (  1.0440,  0.0,  0.00000000000000E+00),
pt(   -1,      0,    0) = (  1.0440,  0.0,  0.00000000000000E+00),
pt(   -1,      1,    0) = (  1.0440,  0.0,  0.00000000000000E+00),
pt(    0,     -1,    0) = (  1.0,     0.0,  0.00000000000000E+00),
pt(    0,      0,    0) = (  1.0,     0.0,  0.00000000000000E+00),
pt(    0,      1,    0) = (  1.0,     0.0,  0.00000000000000E+00),
pt(    1,     -1,    0) = (  0.95953, 0.0,  0.00000000000000E+00),
pt(    1,      0,    0) = (  0.95953, 0.0,  0.00000000000000E+00),
pt(    1,      1,    0) = (  0.95953, 0.0,  0.00000000000000E+00),
pt(   -1,     -1,    1) = (  1.0440,  0.0,  0.00000000000000E+00),
pt(   -1,      0,    1) = (  1.0440,  0.0,  0.00000000000000E+00),
pt(   -1,      1,    1) = (  1.0440,  0.0,  0.00000000000000E+00),
pt(    0,     -1,    1) = (  1.0,     0.0,  0.00000000000000E+00),
pt(    0,      0,    1) = (  1.0,     0.0,  0.00000000000000E+00),
pt(    0,      1,    1) = (  1.0,     0.0,  0.00000000000000E+00),
pt(    1,     -1,    1) = (  0.95953, 0.0,  0.00000000000000E+00),
pt(    1,      0,    1) = (  0.95953, 0.0,  0.00000000000000E+00),
pt(    1,      1,    1) = (  0.95953, 0.0,  0.00000000000000E+00)}