Load full annual cycle map parameters

Get the map parameters used on the eBird Status and Trends website to optimally display the full annual cycle data. This includes bins for the abundance data, a projection, and an extent to map. The extent is the spatial extent of non-zero data across the full annual cycle and the projection is optimized for this extent.

load_fac_map_parameters(path)

Arguments

path	character; full path to the directory containing single species eBird Status and Trends products.

Value

A list containing elements:

• custom_projection: a custom projection optimized for the given species' full annual cycle

• fa_extent: an Extent object storing the spatial extent of non-zero data for the given species in the custom projection

• fa_extent_sinu: the extent in sinusoidal projection

• abundance_bins: abundance bins for the full annual cycle

Examples

# \donttest{
# download example data
sp_path <- ebirdst_download("example_data", tifs_only = FALSE)
#> Data already exists, use force = TRUE to re-download.
# get map parameters
load_fac_map_parameters(sp_path)
#> $custom_projection
#> [1] "+proj=laea +lat_0=40.8874715114569 +lon_0=-94.3562032160404"
#> 
#> $fa_extent
#> class      : Extent 
#> xmin       : -2470623 
#> xmax       : 2602377 
#> ymin       : -3469050 
#> ymax       : 3305950 
#> 
#> $fa_extent_sinu
#> class      : Extent 
#> xmin       : -11028917 
#> xmax       : -4522593 
#> ymin       : 941359.2 
#> ymax       : 7527684 
#> 
#> $abundance_bins
#>  [1] 0.01000000 0.01337109 0.02523799 0.04538258 0.05989215 0.07828108
#>  [7] 0.10139866 0.13024187 0.16597497 0.20995081 0.26373406 0.29485654
#> [13] 0.32912655 0.36681087 0.40819463 0.50329885 0.61712597 0.75272344
#> [19] 0.91353645 1.10344774 1.32682013 1.58854212 2.24951203 3.13790686
#> [25] 5.94350290
#> 
# }