Renders one centroid-anchored circle per polygon row, sized
proportionally to count_col. Useful for showing per-district
incident counts without colour-coding the polygons themselves.
Usage
morie_tps_render_district_proportional(
polys,
count_col,
max_radius_km = 3,
outfile = NULL
)
Arguments
- polys
data.frame with one row per polygon, including a
centroid_lat / centroid_lon (or LAT_WGS84 / LONG_WGS84)
and the count column.
- count_col
Name of the numeric column.
- max_radius_km
Largest symbol radius in km.
- outfile
Optional output path.
Value
ggplot object or invisible NULL.
Examples
set.seed(1)
polys <- data.frame(centroid_lat = runif(6, 43.62, 43.82),
centroid_lon = runif(6, -79.55, -79.20),
n = c(5, 12, 3, 8, 20, 9))
out <- morie_tps_render_district_proportional(polys, "n",
outfile = tempfile(fileext = ".png"))
