"springt" - mkraska/meclib GitHub Wiki
[ "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 pointr
(optional, default: 6 pixel) radius of the turns in pixellf
(optional, default 20) length of the terminal lines in % of the total lengthn
(optional, default: smart value, making a nice appearance) number of turnsoff
(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 ]
]