Fix bug in construct_buffer()

NEWS.md

@@ -1,6 +1,7 @@
-# landscapemetrics 2.1.0
+# landscapemetrics 2.1.1
 * Bugfixes
-    * Bugfix in calculate of clumpy if NA calc is present
+    * Bugfix in calculate of clumpy if NA values are present
+    * Bugfix in construct_buffer that CRS was lost
 
 # landscapemetrics 2.1.0
 * Improvements

R/construct_buffer.R

@@ -7,6 +7,7 @@
 #' @param size Size of sample plot. Equals the radius for circles or the
 #' side-length for squares in map units
 #' @param return_vec If TRUE, vector objects are returned.
+#' @param crs The coordinate reference system used for vector objects.
 #' @param verbose Print warning messages.
 #'
 #' @return
@@ -22,7 +23,7 @@
 #' @keywords internal
 #'
 #' @export
-construct_buffer <- function(coords, shape , size, return_vec = TRUE, verbose = TRUE) {
+construct_buffer <- function(coords, shape , size, return_vec = TRUE, crs="", verbose = TRUE) {
 
     # make sure coords are matrix
     coords <- points_as_mat(pts = coords)
@@ -80,7 +81,7 @@ construct_buffer <- function(coords, shape , size, return_vec = TRUE, verbose =
 
             mat <- matrix(x, ncol = 2)
 
-            terra::vect(x = mat, type = "polygon")
+            terra::vect(x = mat, type = "polygon", crs = crs)
 
         })
 

R/sample_lsm.R

@@ -111,12 +111,15 @@ sample_lsm_int <- function(landscape, y, plot_id, shape, size,
         # convert to terra
         y <- methods::as(y, "SpatVector")
 
+        # get crs
+        crs <- terra::crs(y)
+
         if (terra::geomtype(y) == "points") {
 
             if (is.null(size) | size == 0) stop("Please provide size argument size > 0.", call. = FALSE)
 
             y <- construct_buffer(coords = y, shape = shape, size = size,
-                                  return_vec = TRUE, verbose = verbose)
+                                  return_vec = TRUE, crs = crs, verbose = verbose)
 
         }