The End¶

import base64
from IPython.display import Image, display
import matplotlib.pyplot as plt

def mm(graph):
    graphbytes = graph.encode("utf8")
    base64_bytes = base64.b64encode(graphbytes)
    base64_string = base64_bytes.decode("ascii")
    display(Image(url="https://mermaid.ink/img/" + base64_string))

mm("""
graph LR;
        ufo_draw[<b>ufo_draw</b>\n\n- generate and draw diagram]--> pyfeyn2 & feynmodel;
        pyfeyn2[<b>pyfeyn2</b>\n\n- draw diagrams]--> feynml & Renders;
        feynmodel[<b>FeynModel</b>\n\n- abstraction layer]--> UFO & qgraf & FormCalc;
        feynamp[<b>FeynAmp</b>\n\n- compute diagram]--> feynml & feynmodel & Form;
        feynml[<b>FeynML</b>\n\n- define diagram]--> pyLHE & pyHEPMC;
        subgraph extern
            Renders(Renders\n<p style=text-align:left>- TikZFeynman\n- Feynman\n- ...</p>)
            qgraf(Qgraf\n\n- generate diagrams);
            UFO(UFO\n\n- Feynman rules);
            pyHEPMC(pyHEPMC);
            pyLHE(pyLHE);
            FormCalc(FormCalc\n\n- generate and compute)-->Form;
            Form(Form);
        end
""")