title: Draw a circle of constant size for all zoom levels leaflet.js
body: <p>I am trying to implement something like <a href="http://www.mapsdata.co.uk/how-to-use-mapsdata/" rel="noreferrer">this</a> using leaflet.js, where the size of the circle remains the same on varying zoom levels. For example, if I want to depict the populations in different US counties, I would have circles of different radius represent different ranges of populations. They may overlap when zoomed out completely, but once we start zooming in, they tend to separate. So is there a way to do this using leaflet.js. I saw an <a href="https://github.com/Leaflet/Leaflet/issues/344" rel="noreferrer">issue</a> raised, but I wasn't able to follow if it was fixed or not. Any help would be deeply appreciated.</p>