wrapPoly: Reproject polygons with wrapping

In mapmisc: Utilities for Producing Maps

Reproject polygons with wrapping

Description

Reprojects a SpatialPolygons object to a projection with longitude wrapping other than 180 degreess

Usage

wrapPoly(x,crs, buffer.width = 100*1000)
llCropBox(crs, 
  buffer.width=50*1000, densify.interval = 25*1000, 
  crop.distance = 2.1e7, crop.poles = FALSE, crop.leftright=FALSE,
  remove.holes=TRUE, cycles = 2, ellipse=NULL)

Arguments

x	A Spatial object
crs	Caracther string representing a crs.
buffer.width	buffer to add to points on border when cropping poloygons, defaults to 100km
densify.interval	interval when densifying
crop.distance	crop coordinates larger than this value
crop.poles	remove areas near the poles
crop.leftright	remove points near 180 longitute line
remove.holes	fill holes in the crop region
cycles	iterations adding denser points
ellipse	boundary of the world in crs coordinates

Value

A reprojected Spatial object.

See Also

project, examples in tpeqd

mapmisc documentation built on Nov. 21, 2023, 5:09 p.m.