# Impossible trident pikchr script
# https://en.wikipedia.org/wiki/Impossible_trident
# pikchr script by Kees Nuyt, license Creative Commons BY-NC-SA
# https://creativecommons.org/licenses/by-nc-sa/4.0/
# https://fossil-scm.org/forum/forumpost/51905911d6

scale = 0.5
eh = 0.5cm
ew = 0.2cm
ed = 2 * eh
er = 0.4cm
lws = 4.0cm
lwm = lws + er
lwl = lwm + er

ellipse height eh width ew
L1: line width lwl from last ellipse.n
line width lwm from last ellipse.s
LV: line height eh down

move right er down ed from last ellipse.n
ellipse height eh width ew
L3: line width lws right from last ellipse.n to LV.end then down eh right ew
line width lwm right from last ellipse.s then to LV.start

move right er down ed from last ellipse.n
ellipse height eh width ew
line width lwl right from last ellipse.n then to L1.end
line width lwl right from last ellipse.s then up eh