usmap 0.5.0

New Features

• Ability to include county name labels on county maps, see Issue #14.
  • They currently work the same as state labels except they include the full county name (excluding the word "County").
• Ability to pass ggplot2::geom_polygon() parameters to plot_usmap(), see Issue #15.
  • This is a breaking change and removes the lines parameter. The previous defaults of color="black", fill="white", and size=0.4 are maintained and will be used for any of those parameters that are omitted.
  • Refer to the ggplot2::geom_polygon() documentation for more information.
  • The following aesthetics are supported: alpha, colour/color, fill, linetype, size
  • This feature provides more direct control over the appearance of plots.
• Ability to exclude counties and states with new exclude parameter in us_map, map_with_data, and plot_usmap, see Issue #19.
• New function (usmap_transform) to transform longitude/latitude point data frames into coordinate reference system that matches the plotted map, see Issue #21.
  • Also includes usmap_crs() to easily access the coordinate reference system used by the package.

Improvements

• In the data frames provided by us_map(), long and lat have been renamed to x and y, respectively, see Issue #16.
  • This should not affect the behavior of plot_usmap() but will be a breaking change for any code that relies on us_map().
• Added contributing guidelines and templates, see Issue #24.
  • These can be see in the .github folder.