Plotting
The following is a very simple Bmad lattice:
beginning[beta_a] = 10. ! m
beginning[beta_b] = 10. ! m
beginning[e_tot] = 10e6 ! eV
parameter[geometry] = open ! or closed
d: drift, L = 0.5
b: sbend, L = 0.5, g = 1, e1 = 0.01, e2 = 0.02
q: quadrupole, L = 0.6, k1 = 0.23
lat: line = (d, b, q)
use, lat
Using the above as content, create a file 'lat.bmad' and run tao on the command line:
> tao -lat lat.bmad
Tao> show plot
plot_page parameters:
%size = 500 600
%n_curve_pts = 401
%text_height = 12.000
... etc...
Templates:
Plot Description
---------------------------- -------------------
alpha Twiss alpha function
b_div_curl Magnetic Field Divergence and Curl along orbit
b_field Magnetic Field Along Orbit
beta Twiss beta function
bunch_sigma_xy Bunch transverse sigmas
bunch_R1_R2 Bunch phase space plot. R1, R2 -> x, px, y, py, z, or pz. EG: bunch_z_pz
cbar Cbar coupling matrix
dbeta Chromatic normalized beta beat
... etc...
Location on Page
Plot Region <--> Plot x1 x2 y1 y2
----------- -----------------------------------------
layout <--> lat_layout 0.00 1.00 0.00 0.15
r11 <--> 0.00 1.00 0.15 1.00
r12 <--> 0.00 1.00 0.58 1.00
r22 <--> 0.00 1.00 0.15 0.58
r13 <--> beta 0.00 1.00 0.72 1.00
r23 <--> dispersion 0.00 1.00 0.43 0.72
r33 <--> orbit 0.00 1.00 0.15 0.43
r14 <--> 0.00 1.00 0.79 1.00
... etc...
The Plot Window is divided up into regions:
Tao defines a default set of plotting regions and more can be defined using an initialization file.
Tao> place r22 floor_plan
Example place commands:
Tao> place r22 none ! Clear a region
Tao> place * none ! Clear all regions
Tao> scale beta 0 20 ! Set y_min = 0, y_max = 20
Tao> scale r22 0 20 ! Same as above if beta plot in r22 region
Tao> scale beta ! Tao will calculate nice bounds
Tao> scale all ! "all" = all plots
Tao> scale ! Same as "scale all"
Tao> x_scale beta 0.8 1.0 ! Scale horizontal axis
Tao> xy_scale floor_plan ! Combined scale and x_scale.