We recently discovered that the UTM projection we have been using is not accurate enough for our application when doing calculations that require distances.
Instead of rewriting our code base to use great circle calculation I would like to understand how proj4 projections work but havent been able to google what i needed. Possible because I dont yet know exactly what to google for.
I have a lat,lng of a point that I want to place my local projection around and the area it should cover is a radius of 25km. How would I create a proj4 string for this local projection with units of meters.