"springt"

[ "springt", "name", [x1, y1], [x2,y2], r, lf, (n (, off)) ]

symbol for a tensile spring

• "name" label, typeset in MathJax math mode
• [x1, y1], [x2,y2] start and end point
• r (optional, default: 6 pixel) radius of the turns in pixel
• lf (optional, default 20) length of the terminal lines in % of the total length
• n (optional, default: smart value, making a nice appearance) number of turns
• off (optional, default: equivalent to 14 pixels), in standard grid units

Example

[
  [ "grid", "x","y", -5,5,-4,5, 50, [10,10], [0,0] ],
  ["springt", "name", [1,1],[3,1] ],
  [ "point", "1", [1,1],8 ],
  [ "point", "2", [3,1],7 ]
]