Add a heatmap layer to the deckgl widget

The HeatmapLayer can be used to visualize spatial distribution of data. It internally implements Gaussian Kernel Density Estimation to render heatmaps.

add_heatmap_layer(
  deckgl,
  id = "heatmap-layer",
  data = NULL,
  properties = list(),
  ...
)

Arguments

deckgl: A deckgl widget object.
id: The unique id of the layer.
data: The url to fetch data from or a data object.
properties: A named list of properties with names corresponding to the properties defined in the deckgl-api-reference for the given layer class. The properties parameter can also be an empty list. In this case all props must be passed as named arguments.
...: Named arguments that will be added to the properties object. Identical parameters are overwritten.

Examples

## @knitr heatmap-layer
data("sf_bike_parking")

map <- deckgl() %>%
  add_heatmap_layer(
    data = sf_bike_parking,
    getPosition = ~lng + lat,
    getWeight = ~spaces
  ) %>%
  add_basemap()

if (interactive()) map

Arguments

See also

Examples