number_features: Sort and number features by coordinates or distance
In elipousson/overedge: Assorted Functions For Easier Map Making

number_features

R Documentation

Sort and number features by coordinates or distance

Description

Used with layer_numbers(). Supports multiple types of sorting including sorting:

Usage

number_features(
  data,
  col = NULL,
  sort = "dist_xmin_ymax",
  to = NULL,
  desc = FALSE,
  crs = NULL,
  num_style = "arabic",
  num_start = 1,
  suffix = NULL,
  .id = "number"
)

sort_features(
  data,
  col = NULL,
  sort = c("lon", "lat"),
  to = NULL,
  desc = FALSE,
  crs = NULL
)

Arguments

`data`	Marker data
`col`	Group column name, Default: `NULL`
`sort`	Sort column name, Default: "dist_xmin_ymax".
`to`	A `sf` object used to determine sort order based on distance from a feature to the center of the "to" object.
`desc`	If `TRUE`, sort descending; default `FALSE`.
`crs`	Coordinate reference to use with `get_coords()` or `get_minmax()` if "sort" any of the following: "lon", "lat", "longitude", "latitude", "xmin", "ymin", "xmax", "ymax"
`num_style`	Style of enumeration, either "arabic", "alph", "Alph", "roman", "Roman"
`num_start`	Starting number; defaults to 1.
`suffix`	Character to appended to "number" column. (e.g. "." for "1." or ":" for "1:"). Can also be a character vector with the same length as the number column.
`.id`	Name of the column to use for the feature numbers; defaults to "number".

Details

by centroid coordinates ("lon", "lat") appended with get_coords()
by one or more bounding box min or max values ("xmin", "ymin", "xmax", "ymax") appended with get_minmax()
by distance from the corner, side midpoint, or center of a bounding box ("dist_xmin_ymin", "dist_xmax_ymax", "dist_xmin_ymax", "dist_xmax_ymin", "dist_xmin_ymid", "dist_xmax_ymid", "dist_xmid_ymin", "dist_xmid_ymax", "dist_xmid_ymid")
by distance to a point (or sf, sfc, or bbox object) passed to the to parameter

For example, in the eastern United States, you can sort and number features from the top-left corner of the map to the bottom right by setting sort to "dist_xmin_ymax" (default).

number_features also supports a range of different numbering styles designed to match the standard enumeration options available in LaTeX.