Convert x,y nodes to data.frame of polygons

Convert x,y nodes to data.frame of polygons

Usage

grid2df(
  spe,
  x = spe@metadata$grid_density$node_x,
  y = spe@metadata$grid_density$node_y,
  reverseY = FALSE,
  ...
)

Arguments

spe

A SpatialExperiment object with grid density calculated

x

vector of x nodes of the polygons

y

vector of y nodes of the polygons

reverseY

Reverse y coordinates. Can be numeric to specify the value to subtract y coordinates from (reverseY - y coords).

...

other elements to be stored as columns of the data.frame. Each one must be a vector same length as x.

Value

data.frame with X, Y, and L2. Points with the same L2 belong to the same polygons

Details

Basically grid2sf() but returns a data.frame for plotting with geom_polygon(), which allows for scale_*_transform(), unlike geom_sf().

Column names are kept similar to sf::st_coordinates