Unicode

Characters/String

from pyfeyn2.feynmandiagram import FeynmanDiagram, Leg, Propagator, Vertex
from pyfeyn2.render.text.unicode import UnicodeRender
from pyfeyn2.render.latex.dot import feynman_adjust_points

fd = FeynmanDiagram()
v1 = Vertex("v1")
v2 = Vertex("v2")
v3 = Vertex("v3")
v4 = Vertex("v4")
p1 = Propagator("p1").connect(v2, v1).with_type("fermion")
p2 = Propagator("p2").connect(v1, v3).with_type("fermion").set_label('äöü')
p3 = Propagator("p3").connect(v3, v2).with_type("fermion")
p4 = Propagator("p4").connect(v4, v3).with_type("gluon")
p5 = Propagator("p5").connect(v4, v2).with_type("gluon")
l1 = Leg("l1").with_target(v1).with_type("photon").with_incoming().with_xy(-2, 1).set_label("$\\gamma$")
l2 = Leg("l2").with_target(v1).with_type("gluon").with_incoming().with_xy(-2, -1).set_label("$\\alpha$")
l3 = Leg("l3").with_target(v2).with_type("gluon").with_outgoing().with_xy(2, -2).set_label("$\\beta$")
l4 = Leg("l4").with_target(v3).with_type("gluon").with_outgoing().with_xy(2, 2)
l5 = Leg("l5").with_target(v4).with_type("gluon").with_outgoing().with_xy(2, 1)
l6 = Leg("l6").with_target(v4).with_type("gluon").with_outgoing().with_xy(2, -1)

fd.propagators.extend([p1, p2, p3, p4, p5])
fd.vertices.extend([v1, v2, v3, v4])
fd.legs.extend([l1, l2, l3, l4, l5, l6])
fd= feynman_adjust_points(fd)

tfd = UnicodeRender(fd)
s= tfd.render(show=False,height=30,width=80)
print(s)

                                                                             OO*
                                                                       OOOOOO
                γ                                                OOOOOO
                                        äöü                 OOOOO
       *~~~~                                          OOOOOO                 OO*
            ~~~~~~~~~                          →→→→*OOO                  OOOO
                     ~~~~~~~~~         →→→→→→→→    ↓   OOOOOOOO      OOOO
                α             ~OOO*→→→→            ↓           OOO*OO
                        OOOOOOO        ←←←←←←←←    ↓   OOOOOOOO     OOO
                  OOOOOO                       ←←←←*OOO                OOOO
           OOOOOOO                                    OOOOO                OOO
       *OOO                                                OOOOβ              O*
                                                               OOOOO
                                                                    OOOO
                                                                        OOOOO
                                                                             OO*

PDF

from pyfeyn2.render.text.unicodepdf import UnicodePDFRender
tfd = UnicodePDFRender(fd)
tfd.render(show=True,height=30,width=40)

                                      O*
                                   OOO
       γ             ü          OOO
                   äö         OO
   *~~                     OOO        O*
      ~~~~              →*O         OO
          ~~~~~    →→→→→ ↓ OOOO   OO
       α       ~O*→      ↓     O*O
            OOOO   ←←←←← ↓ OOOO  OO
         OOO            ←*O        OO
     OOOO                  OO        OO
   *O                        OO β      *
                               OOO
                                  OO
                                    OO
                                      O*

print(tfd.get_src())

\documentclass[preview]{standalone}%
\usepackage[T1]{fontenc}%
\usepackage[utf8]{inputenc}%
\usepackage{lmodern}%
\usepackage{textcomp}%
\usepackage{lastpage}%
%
\usepackage{listings}%
\usepackage{fontspec}%
\usepackage{minted}%

\setmonofont{LiberationMono}[
  Extension=.ttf,
  UprightFont=*-Regular,
  ItalicFont=*-Italic,
  BoldFont=*-Bold,
  BoldItalicFont=*-BoldItalic,
]

\frenchspacing
            %
%
\begin{document}%
\normalsize%
\begin{minted}{text}






                                      O*
                                   OOO
       γ             ü          OOO
                   äö         OO
   *~~                     OOO        O*
      ~~~~              →*O         OO
          ~~~~~    →→→→→ ↓ OOOO   OO
       α       ~O*→      ↓     O*O
            OOOO   ←←←←← ↓ OOOO  OO
         OOO            ←*O        OO
     OOOO                  OO        OO
   *O                        OO β      *
                               OOO
                                  OO
                                    OO
                                      O*








\end{minted}
%
\end{document}