d3-geo-polygon offers polygon clipping, a technique that allows to clip geographic features along arbitrary polygons. With this come a host of new possibilities for polyhedral projections, as well as fixes to the existing polyhedral projections. Usage:
```{}
require("d3-geo", "d3-geo-polygon")
``` For example, with d3-geo-polygon (left), the path produced by d3.geoPolyhedral() is properly clipped to the defining polygon: no further clipping is necessary on the SVG or canvas. (On the right: the pat