"fix13"

[ "fix13", "name", [x, y], angle, state ]

axial and angular support, floats in vertical direction for angle = 0°

• "name" label, typeset in MathJax math mode.
• [x, y] pivot point
• angle angle counter-clockwise from horizontal direction, in °
• state (optional, default: "locked") "hide" or "show". If missing, object can't be switched interactively.

[
  [ "grid", "","", -5,5,-4,5, 50, [10,10], [0,0] ],
  [ "fix13", " ", [-2, 2], 0 ],
  [ "label", "A", [-2.4, 2] ],
  
  [ "fix13", " ", [0, 2], 45 ],
  [ "label", "B", [-0.3, 1.8] ],
  
  [ "fix13", " ", [2, 2], 90 ],
  [ "label", "C", [1.9, 1.7] ]
]