build_gkey: Build a glyph key

In pkuhnert/VizU: Visualizing uncertainty in spatial data

Build a glyph key

Description

This function creates a key of rotated glyphs for a map produced with build_gmap.

Usage

build_gkey(data, glyph = "icone", fontSize = 3, transparent = FALSE)

Arguments

data	A data frame.
glyph	Name of glyph shape. Options include icone and semi.
fontSize	An integer value. Default is 3.
transparent	A logical value. Option to make key background transparent. Default is FALSE.

Details

A key for the glyph map is not automatically generated with build_gmap and must be made using build_gkey. It is important that the arguments passed to build_gkey match those passed to build_gmap. The map and key can be viewed together using attach_key.

See Also

attach_key

Examples

data(us_data)
data(us_geo)
co_geo <- subset(us_geo, us_geo@data$STATE == "08")
us_data$GEO.id2 <- as.numeric(us_data$GEO.id2)
co_data <- subset(us_data, us_data$GEO.id2 > 8000 & us_data$GEO.id2 < 9000)
co_data <- read.uv(data = co_data, estimate = "pov_rate", error = "pov_moe")

# build a glyph key
key <- build_gkey(data = co_data, glyph = "icone")
view(key)

pkuhnert/VizU documentation built on March 19, 2024, 10:51 p.m.