function get_cylinder_h(p) = lookup(p, [
    [ -200, 5 ],
    [ -50, 20 ],
    [ -20, 18 ],
    [ +80, 25 ],
    [ +150, 2 ]
  ]);

echo(version=version());
for (i = [-100:5:+100]) {
  translate([ i, 0, -30 ]) cylinder(r1 = 6, r2 = 2, h = get_cylinder_h(i)*3);
}

// Written by Clifford Wolf <clifford@clifford.at> and Marius
// Kintel <marius@kintel.net>
//
// To the extent possible under law, the author(s) have dedicated all
// copyright and related and neighboring rights to this software to the
// public domain worldwide. This software is distributed without any
// warranty.
//
// You should have received a copy of the CC0 Public Domain
// Dedication along with this software.
// If not, see <http://creativecommons.org/publicdomain/zero/1.0/>.