choose algorithm to reduce points in path (route), use _lib ?_ - [Lang simplification](http://www.geogra.uah.es/patxi/gisweb/LGmodule/LGSimplification.htm) - [Opheim simplification](http://psimpl.sourceforge.net/opheim.html) - [Ramer-Douglas-Peucker](https://en.wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm) - [Reumann-Witkam](http://psimpl.sourceforge.net/reumann-witkam.html) - [Visvalingam-Whyatt](https://bost.ocks.org/mike/simplify/) - [Zhao-Saalfeld](http://www.mapcontext.com/autocarto/proceedings/auto-carto-13/pdf/linear-time-sleeve-fitting-polyline-simplification-algorithms.pdf)
