In afsc-gap-products/akgfmaps: Alaska Groundfish and Ecosystem Survey Area Mapping

knitr::opts_chunk$set(echo = TRUE)

Make maps quickly and efficiently using pipe operators

The following code shows how to use akgfmaps to quickly and efficiently make maps without cluttering up the workspace. Prior to this step, it is necessary to determine what breaks, colors, labels, and map sizes to use for each species.

library(akgfmaps)

akgfmaps::YFS2017 |> 
  make_idw_map(region = "bs.all",
               set.breaks = "jenks",
               in.crs = "+proj=longlat",
               out.crs = "EPSG:3338", # Set output coordinate reference system
               grid.cell = c(20000, 20000)) |> # 20x20km grid
  add_map_labels() |> 
  change_fill_color(new.scheme = "purple2", show.plot = TRUE) |>
  create_map_file(file.prefix = NA, 
                  file.path = NA, 
                  try.change_text_size = TRUE, # 12x9 is a pre-defined size
                  width = 12, 
                  height = 9, 
                  units = "in", 
                  res = 300, 
                  bg = "transparent")