get_input_polygons: Get the polygons for a set of locations defined by...
In hrvg/RiverML: Machine Learning for River Science

Get the polygons for a set of locations defined by input_data and n

get_input_polygons(
  input_data,
  n,
  DEM,
  .dl = 25,
  .crs = sp::CRS("+proj=longlat +datum=WGS84")
)

`input_data`	a `data.frame` with columns `lon` and `lat`
`n`	numeric the indices of the rows of input_data to use
`DEM`	a `raster` object
`.dl`	a number of pixel added in all direction to the coordinates of the i-th point in order to create a square tile
`.crs`	a `sp::CRS`, usually the one from the DEM to be tiled