Add a GPU Additive Kernel Density Heatmap Layer

Usage

add_heatmap(
  map,
  data = NULL,
  lon = NULL,
  lat = NULL,
  weight = NULL,
  radius = 18,
  intensity = 1,
  palette = "inferno",
  opacity = 0.8,
  id = NULL,
  group = NULL
)

Arguments

map: A glmap widget or glmap_proxy.
data: An sf, sfc, or data.frame object.
lon: Optional longitude column name or formula (~lon) for data.frame.
lat: Optional latitude column name or formula (~lat) for data.frame.
weight: Optional weight column or formula (~weight).
radius: Point radius in pixels (single number, formula ~size, or numeric vector).
intensity: Numeric intensity multiplier (default 1.0).
palette: Color palette name ("viridis", "plasma", "magma", "turbo", "Spectral", etc.).
opacity: Numeric fill opacity (0 to 1).
id: Layer ID string.
group: Layer group name shown in the interactive layer switcher.