cross

from pyfeyn2.render.all import AllRender
ar = AllRender().demo_vertex("cross")

tikz:

pyx:

feynmp:

feynman:

dot:
dot failed:
Traceback (most recent call last):
  File "/home/apn/git/pyfeyn2/pyfeyn2/render/all.py", line 84, in render
    render(fd).render(dirpath + "/" + name + ".pdf", **dynarg)
  File "/home/apn/git/pyfeyn2/pyfeyn2/render/latex/dot.py", line 79, in __init__
    self.set_feynman_diagram(fd)
  File "/home/apn/git/pyfeyn2/pyfeyn2/render/latex/dot.py", line 83, in set_feynman_diagram
    self.src_dot = feynman_to_dot(
  File "/home/apn/git/pyfeyn2/pyfeyn2/interface/dot.py", line 70, in feynman_to_dot
    thestyle = styler(fd, l)
  File "/home/apn/git/pyfeyn2/pyfeyn2/render/latex/dot.py", line 39, in stylize_connect
    style = 'style="{}",texmode="raw"'.format(map_feyn_to_tikz[lname])
KeyError: 'line'

asciipdf:

unicodepdf: