Suggestions for pgf

The fol­low­ing pack­ages have some­thing in com­mon with the pack­age pgf. The pack­ages are or­dered in de­creas­ing sim­i­lar­ity.

• tikz-op­tics: A li­brary for draw­ing op­ti­cal se­tups with TikZ
• bi­na­ry­tree: Draw­ing bi­nary trees us­ing TikZ
• vi­su­altikz: Visual help for TikZ based on im­ages with min­i­mum text
• tikz-cd: Create com­mu­ta­tive di­a­grams with TikZ
• pgfkeys: Key value con­trol for PGF
• tikz-palat­tice: Draw par­ti­cle ac­cel­er­a­tor lat­tices with TikZ
• tikz-page: Small macro to help build­ing nice and com­plex lay­out ma­te­ri­als
• tikz-dim­line: Tech­ni­cal di­men­sion lines us­ing PGF/TikZ
• call­outs: Put sim­ple an­no­ta­tions and notes in­side a pic­ture
• celtic: A TikZ li­brary for draw­ing celtic knots
• tikz-lay­ers: TikZ pro­vides graph­i­cal lay­ers on TikZ: "be­hind", "above" and "glass"
• tikzpeo­ple: Draw peo­ple-shaped nodes in TikZ
• stanli: TikZ Li­brary for Struc­tural Anal­y­sis
• blochsphere: Draw pseudo-3D di­a­grams of Bloch spheres
• log­icpuz­zle: Type­set (grid-based) logic puz­zles
• make­shape: De­clare new PGF shapes
• reo­tex: Draw Reo Chan­nels and Cir­cuits
• set­deck: Type­set cards for Set
• smart­di­a­gram: Gen­er­ate di­a­grams from lists
• tipfr: Pro­duces cal­cu­la­tor's keys with the help of TikZ
• grafcet: Draw Grafcet/SFC with TikZ
• tikz­code­blocks: Helps to draw code­blocks like scratch, NEPO and PXT in TikZ
• struct­mech: A TikZ com­mand set for struc­tural me­chan­ics draw­ings
• sc­snow­man: Snow­man vari­ants us­ing TikZ
• pen­rose: A TikZ li­brary for pro­duc­ing Pen­rose tilings
• spec­tralse­quences: Print spec­tral se­quence di­a­grams us­ing PGF/TikZ
• jig­saw: Draw jig­saw pieces with TikZ
• tikz­ducks: A lit­tle fun pack­age for us­ing rub­ber ducks in TikZ
• tikz­mar­mots: Draw­ing lit­tle mar­mots in TikZ
• tik­zlings: A col­lec­tion of cute lit­tle an­i­mals and sim­i­lar crea­tures
• adi­graph: Aug­ment­ing di­rected graphs