electricalFieldY method
Returns the electrical field in the Y direction acting on a vertex at the given point. By default there is no electrical field at any location.
Used to define an external electrical field at a point independent of the vertex charges.
A vertex L is acted upon by a force in the Y direction of proportional to
electricalFieldY(L.center.x, L.center.y) * electricalCharge(L).
 Please read the Introduction page on Extensions for how to override methods and how to call this base method.
 @expose
 @param {number} x
 @param {number} y
 @return {number} the default implementation returns zero.
Implementation
_i2.num electricalFieldY(
  _i2.num x,
  _i2.num y,
) =>
    _i4.callMethod(
      this,
      'electricalFieldY',
      [
        x,
        y,
      ],
    );