Need lengthscale markers

[Zhiyuan-21]

Is it possible to show the lengthscale markers somewhere? Would be useful for reference when zooming in and out.

[ageller]

Thanks. We have wanted to include this option for a while but have not gotten around to building it in. For now, a workaround (admittedly "hacky") would be to include extra particles in your data that cover a specified length scale (e.g., in a line along a particular axis, or multiple axes) so that you can compare.