Reproject and crop Spatial and sf objects to SOmap objects

Source: R/SOauto_crop.r

Reproject and crop Spatial and sf objects to SOmap objects

SOauto_crop(layer, x, sp = TRUE)

Arguments

layer

: an sf or Spatial (SpatialPolygonsDataFrame, SpatialLinesDataFrame, SpatialPointsDataFrame etc) object to reproject and crop

x

: a SOmap or SOauto_map object

sp

logical: if TRUE, return the cropped object in Spatial form, otherwise sf

Value

If successful, a reprojected and cropped version of layer. If the reprojection or cropping operations fail, the returned object will be of class try-error. If the cropping operations return an empty object (i.e. no parts of layer lie within the bounds of x) then the returned object will either be NULL (if sp = TRUE) or an sf object with no features if sp = FALSE.

Examples

if (FALSE) {
  a <- SOmap_auto(c(0, 50), c(-70, -50))
  x <- SOauto_crop(SOmap_data$fronts_orsi, a)
  plot(a)
  plot(x, add = TRUE)

  a <- SOmap(trim = -60)
  x <- SOauto_crop(SOmap_data$EEZ, a)
  plot(a)
  plot(x, add = TRUE)
}