pathrow_num-methods: Get WRS-2 path/row numbers for a given spatial object

In wrspathrow: Functions for working with Worldwide Reference System (WRS)

Description

Get WRS-2 path/row numbers for a given spatial object

Usage

pathrow_num(x, wrs_type = "2", wrs_mode = "D", as_polys = FALSE)

## S4 method for signature 'Raster'
pathrow_num(x, wrs_type, wrs_mode, as_polys)

## S4 method for signature 'Spatial'
pathrow_num(x, wrs_type, wrs_mode, as_polys)

Arguments

x	a spatial object
wrs_type	1 (for WRS-1) or 2 (for WRS-2)
wrs_mode	either 'D' for descending (daytime) or 'A' for ascending
as_polys	if FALSE (default) return a data.frame. If TRUE, return a SpatialPolygonsDataFrame.

Value

data.frame with path and row as integers, or, if as_polys=TRUE, a SpatialPolygonsDataFrame

Examples

## Not run: 
library(sp)

pathrow_num(test_poly)

x <- pathrow_num(test_poly, as_polys=TRUE)
plot(x)
plot(test_poly, add=TRUE, lty=2, col="#00ff0050")
text(coordinates(x), labels=paste(x$PATH, x$ROW, sep=', '))

## End(Not run)

wrspathrow documentation built on May 29, 2017, 3:24 p.m.