interp_new_pts: Interpolate along region boundaries
In IceCast: Apply Statistical Post-Processing to Improve Sea Ice Predictions

Interpolate contour points that are very close or on the region boundaries.

1	interp_new_pts(r, new_pts, reg_info, end = TRUE, close = 12.5)

`r`	integer indicating for which region the contours are being generated
`new_pts`	coordinates of the contour
`reg_info`	a `reg_info` list (see documentation for `reg_info`)
`end`	indicator determining if the points are being interpolated on the ending coordinates or the starting coordinates. Defaults to `TRUE`.
`close`	how close a point must be to the line to count as being on it, defaults to 12.5