sseq – Spec­tral se­quence di­a­grams

The pack­age pro­vides com­mands to draw spec­tral se­quence di­a­grams, pro­vid­ing fa­cil­i­ties for clip­ping and ar­rang­ing mul­ti­ple sym­bols so that they do not over­lap. The pack­age is built us­ing pgf, and shares that sys­tems large de­mands for TeX sys­tem mem­ory. Its ge­o­met­ric com­mands are based on a tur­tle graph­ics model, and con­trol struc­tures such as loops and con­di­tion­als are avail­able.